Conector Padrão NEMA

Início > Conector Padrão NEMA LONG-JOIN

Fabricante de conectores padrão NEMA da marca LONG-JOIN desde 1996

A marca LONG-JOIN é especializada em conectores de fotocélula com trava giratória e também é chamada de receptáculo padrão da série NEMA. Nosso receptáculo é compatível com ANSI C136.41 e UL, C-ul, CB, CE, etc. e o receptáculo da série NEMA fornece módulo de interface que faz a interconexão elétrica e mecânica entre uma célula de controle de fotocélula ANSI C136.41-2013 e uma luminária.

O receptáculo de fotocélula de 7 pinos é um receptáculo de dimerização compatível que fornece 4 contatos de dimerização totalmente plugáveis para suportar métodos de dimerização de 0-10 V e uma interface de iluminação endereçável digital (DALI), ao mesmo tempo em que fornece uma interconexão de energia confiável com três contatos de trava de torção robustos. Outros 3 fios são contatos de energia.
• Contatos de energia terminados em fio trançado 14AWG
• Contatos de sinal terminados em fio trançado 18AWG e fio de saída de dimerização do driver DALI de 3/4.

e os receptáculos NEMA foram projetados para a luminária com uma interface padrão, bem como um módulo estendido de dispositivo de luminárias de luz. por exemplo, um plugue ANSI C136.10 de 3 pinos com trava giratória no sentido horário em um conector fêmea e lanternas de lâmpadas tem um bom efeito à prova de chuva e anti-impacto.

O receptáculo de fotocélula de 3 pinos é uma conexão universal comum e costuma ser um conector fêmea padrão ANSI C136.10-1996. Nosso receptáculo de 3 pinos não é usado apenas para controle de fotocélula ANSI C136.10, mas você também pode escolher a tampa traseira JL-200Z. Além disso, você pode escolher diferentes tamanhos de suportes de alumínio para montagem, a fim de aprimorar as soluções de iluminação para controle do sensor de fotocélula do crepúsculo ao amanhecer em condições limitadas.

Novo produto de receptáculo NEMA com funcionalidade
1- Disponível com tampa traseira giratória limitada e ABS com fios de cabo de porca de trava à prova d'água. Ex.: JL-260C, JL-200ZCWP, JL-240TZCWP;
2- Especialmente o receptáculo JL-240FXA oferece anéis de vedação de silicone na superfície SUPERIOR com orifício para parafuso e recurso de abordagem ilimitada à prova d'água;
3- Faixa de orientação limitada de 360° para evitar atolamentos de fios. por exemplo, JL-260D1, JL-260D2.

Para Você Fornecer Boas Soluções
Além disso, se você deseja receptáculos especiais e individuais, podemos ajudá-lo a refiná-los e redesenhar o mesmo corpo do receptáculo, mas com um corpo diferente com os fios conectados. Por exemplo, corpo do receptáculo com fio de cabo; e escolher fios tubulares retráteis para melhorar a resistência à água e o isolamento; adaptar o corpo do receptáculo com conector de bloco de terminais de fios ou trocar completamente os fios de cabo com bloco de terminais para uso. Além da ideia inovadora acima, estamos disponíveis receptáculos com design flexível, com kits de suporte de parede para atender às necessidades dos usuários europeus.

>>Receptáculo NEMA 7 PIN

>> Receptáculo JL-240

>> Receptáculo NEMA 5 PIN

>>Receptáculo de 3 pinos

>>Soquete Zhaga

LONG-JOIN Fornecer Recursos

>> Certificações

>> Catálogos de produtos LONG-JOIN

>>Galeria de vídeos LONG-JOIN

Zhaga or NEMA Resource Lists:

Here you can visit link collections, here you know over all the long-join company information and feature depiction of typical popular or it fit which these countries should match product. but more than above, here leave you a most impression than only view product detials.

https://long-join.com/zhaga-series-nema-series-longjoin/ (English)
https://long-join.com/nema-photo-control-switch-long-join-zhaga-socket/(German)
https://long-join.com/zhaga-socket-nema-photocell-receptacle/(Portugal)
https://long-join.com/zhaga-book-socket-nema-receptacle-240xa-jl700/（French）
https://long-join.com/photocell-sensor-receptacle-kits-for-middle-east-area-lighting-solutions/（Middle east, Arab）
https://long-join.com/photocell-receptacle-for-middle-east-area-lighting-solutions/ (Middle east, enlish)
https://long-join.com/zhaga-socket-and-wire-control/(Japean)
https://long-join.com/jL207c-longjoin-phocontrol-120-277v/(Spanish)

https://long-join.com/middle-east-lighting-market-sale-photo-control-service-about-long-join/(Arb)
https://long-join.com/middle-east-lighting-market-sale-wire-type-control-long-join/(English)
https://long-join.com/longjoin-photocell-manufacturer/ (Company profiles )
https://long-join.com/product-category/our-product/ (Product collection)
https://long-join.com/photocell-sensor-wiring-diagram-instruction/
https://long-join.com/quality-certificate/
https://long-join.com/about-our-reviews/

Content Guides for You Here

More about NEMA type Photocontrol Receptacle

NEMA type Receptacle JL240

Base NEMA type receptacle specification

Max voltage:0-480v, but real load value is more than 480 voltage. here you curious about this, you can send me Email.
Top surface outer circle diameter 64.5mm. Secondth circle diameter is 48.7mm.
Screws both are M4 type.
Overall receptacle structure, receptacle body, four gold-plated pads and 7 root wires.
Watchful! this 4-pads with phosphor bronze Nickel plated and gilded thickness over 0.7um. it is worthy attention, can enhance avoid abrasion between pin and pin, and keep dusk to dawn photocontrol work safely from Oxidation reaction would produce fire hazardous long-term.
Glass-Fiber stronger PBT, let our photocontroller steady work harsh environment. such as UV Exposure,Salt Spray,High Humidity and Strong Winds.
If this socket rear terminal with silicone seal, then receptacle waterproof feature strengthener than un-seal. here you can reference these items. JL-240F, JL-230F, JL-200.
JL-240xa with alone type silicone gasket.
JL-240 both 240XA, and 240XB. 240XB with 0-10V dimming receptacle for only dimming controller.

JL-240xa, here ANSI C136.41 7 pin receptacle available, which to be plug-into different type twist lock light controller. below one choose of you best led lighting solution.

solution	light control+receptacle	content
1	JL-240XA&JL-205C	economic sets and to meet numerous street lighting project
2	JL-240XA&JL-215C	high effience and and saving energe
3	JL-240XA&JL-207C	to meet municipal lighting Tender document requirements, or true brand qualities by we patiently screen.
4	JL-240XA&JL-205F/E	discount or replace JL-207E/F this good solutions
5	JL-240XA&JL-215F/E	discount or replace JL-207E/F this good solutions
6	JL-240XA&JL-208-IP66	to meet smart cities light fixture upgrade future
7	JL-240XA&UM-208	discount or replace JL-208-IP66 solution
8	JL-240XA&UM-205	more convenient and cheap or replace UM-205 solution

Notas:

JL-240X special in nema 7 pin type receptacle, this is can boardly usage space in led lighting fixture. so its make-craft cost higher than other pin receptacle, as like the same lighting base JL-200 (universal type 3 pin receptacle), JL-250, JL-260, JL-230, JL-250F&JL- 250G (surge protection module), JL-250P(NEMA type Power Tap Receptacle).
Whether know you mount outside light fixture bracket is depend on your target and mount environment.
here list 8 kinds solutions about JL-240XA, then you can also direct choose another receptacle is to be replace on the website. finally, let you will know how choose best lighting solutions.

NEMA type 7 pin receptacle, it is key feature that 0-10v and dali dimming. this rear terminal with different gauge, such as power lead with 18AWG, AWM1015, signal lead 14AWG, AWM1015.

Notas: This type receptacle can support dimming mode: DAli and 0-10V. how do wiring dimming drivers according your led light fixture providers arrangement inner electronic devices.

NEMA Receptacle with signal wire definition

1,2 indicates to reveal 0-10v dimming. on the top surface gold-plated pads stand for +/-. these who align to gray and violet lead.
3,4 digital mark signal is consistent to dali dimming leads, 3-orange and 4-brown. here you see know this.

LED lighting solution (4), ANSI C136.10-2017 Jl-207C

LED lighting solution (1)

LED lighting solution (6)

NEMA type Receptacle Video

led lighting solution 3 pin receptacle series

led lighting solution improve waterproof version JL-240FXA

led lighting solution JL-240Z ABS back cover and wall mount

led lighting solution JL-260C cable type and available rotate receptacle

NEMA type Receptacle JL-200 Series

JL-200 series as 3 pin receptacle, it has 2 variants, such as JL-200X, JL-200Z.

JL-200X, X-this rear terminal without cover. Generally, here primarily choose this for you. However, if you want to let light fixture more than tightly seal ever, here could place nema 3 pin receptacle back terminal with silicone glue. so this lighting solution is perfect help you.

JL-200Z, 3 pin receptacle with ABS back cover. it is mount way either on up the lamp shade or outside mount someone where.

Your special requirement lists

here wire universal wire gauge, #12,#14,#16 and #18.
consideration usage in temperature impact on. you can choose 105 celsius, and 150 celsius.
silicone gasket thickness 3mm or 12mm.
this type receptacle with rear back rear terminal with wire can change to waterproof cable connector. here JL-200CWP. if you want to use cable wire without waterproof nut, here can recommend JL-200C.

JL-200 with support brackets type

L: Aluminum bracket
T: Steel bracket
right side picture about assemblies diagram.
Note: JL-200x and JL-200Z, these are to choose different bracket. naturally, for 200x , you also choose standalone receptacle.
Here support options. pls contact me.

NEMA type JL-200

JL-200Z-14

200x suportes de suporte

200ZCWP Waterproof cable connector

Conector macho de suporte disponível

NEMA type Receptacle JL-240F

JL-240F, this type receptacle is similar to NEMA 7 pin JL-240X, which is base common structure scheme and signal wire. However, Enhance version JL-240FX with unique seal rings and rear terminal with silicone seal. it offer screws hole and O-rings.

Kay Parameter

rated Voltage 0-480VAC, Maximum upper limit 700V.
contact pas with phosphor bronze.
receptacle body material PBT with glass fiber and UV stabilizers.
wire type, power and signal wire. its wire gauge keep parallel to JL-240.
Finally, this type receptacle has 2 kinds, like as 7 pin and 5 pin.
Once mount this on the led light fixture, your high pole light waterproof level up to IP66.

NEMA type Rotation Receptacle

Here our provider NEMA type Rotation Receptacle, and you choose from pin type such as 3 pin, 5 pin and 7 pin. below list these item along with core performance feature.

3 pin type NEMA receptacle

JL-230 series, JL-230 with silicone seal, this can rotate to target location by use screwdriver plug into center hole.
JL-230F, this type receptacle rear terminal with waterproof silicone seal. the same operation way with JL-230 in rotation aspect.
Observação: JL-230 with bakelite, and JL-230F is made from PBT. which type 3 pin receptacle is suit for temperature of light fixture surround? so easy, you can use tool to measure. you get know.
JL-230 both has common structure part, receptacle center body, silicone gasket and 2 or 4 screws hole cover available.
M4 type screws.

JL-260C type NEMA receptacle

JL-260c with 5 pin or 7 pin receptacle, this with rear terminal back cover and waterproof cable gland. on the receptacle structure and contacts material keep fellow JL-240 same, but this type receptacle is supportable rotation.
Material: PC body + nylon holder cover.
Cable wire core from universal wire, such as AWG14 or AWG 18.
Once can you see, these wire inherit JL-240 7 pin receptacle rear terminal with 7 roots function. one side can direct power, one side can be signal connected.
This can be used to mount light fixtures or with an aluminum bracket for external mounting.

Conector tipo prensa-cabo M20

A cable gland connector is available.
Material options include stainless steel and plastic.
M20

Right display JL-260C support brackets

special aluminum bracket.
Mounting rack, and ring hoop

JL-250T type NEMA receptacle

this type receptacle with 5 pin or 7 pin, so both signal wire or power wires.
250T series receptacle rear terminal with silicone seal.
Compare with JL-230 has common feature. both mutual material: PBT. rotatable by center slot adjustment with screwdriver.
Contrast to JL-240XA, it is important that this has top surface contact pads with length and width in JL250T. from this views, you can utilize controller base pin to fit contact glod pads until win reliable connector. otherwise, you will spend countless time and cost to continue refined controller.
Structure part, receptacle body, and PBT hodler cover, silicone gasket.
note: this type receptacle wire leads also made cable.

JL-240TL type NEMA receptacle

This type receptacle gasket is integration. and it also can support rotation.
Here receptacle body PBT and Gasket with TPE .
JL-240TL receptacle top surface pads operation way is align to JL-240.
this receptacle structure part, body, gasket and separated installation ring.
Rotation way, fix a location of light fixture, then first install this rings. last, you can manual receptacle direction toward north pointer or again to sunlight where before photocontrol clockwise into base.

JL-260D type NEMA receptacle

JL-260D series has 260D1 e 260D2, D1-this gasket is tightly attach receptacle rear terminal. D2-this is split between receptacle body and gasket.
Mount way, D1-screws direction from inner lamp fixture to outer. D2- be similar to JL-240TL installation. so screws mount direction from lightshade outer to inner. installation diagram right side.
and JL-240xa, this type receptacle PBT material.
JL-260D support rotation, and 7 pin and 5 pin type. naturally, receptacle with leads power and signal.
and common wire gauge with JL-260C, 14AWG 150℃ / 600V rated AWM 3321 leads for power, Supports 15A@480VAC. 18AWG 150℃ / 600V rated AWM 3321 leads for signal, Supports 250mA@30VDC.
North pointer with high gloss.
Receptacle body material PC, and add uv-stable.

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NEMA Receptacle Gasket is Integrated

NEMA type receptacle body rear terminal combine silicone gasket, it is essential reason that large project should need book light fixture base cost and reduce installation and labor cost. so longjoin brand developer team would had launched JL-240 receptacle various structure design scheme.

Compact type gasket in receptacle

JL-240T, no doubt here, this type receptacle have a common feature signal and power wires. the same contact pads and material.
JL-240TL, rotation type receptacle, only has a standalone gear ring. detail information reference to above NEMA type rotation receptacle.
JL-240SXB, short size type rear terminal receptacle design structure for narrow space lamp fixture.
JL-240SXB Only support o-10v dimming output.
Note, JL-250SXB receptacle torque ranges from 1.8-2.2N.M. Otherwise, this type gasket be damage, even in can result in abrasion during tool work.

NEMA type Receptacle JL-240XHA

Here four gold-plated, arc-shaped contact pads on its top surface, its pads with narrow design. which type you can choose NEMA receptacle? here you can refined choice website from JL-240XA/B, rotation type receptacle, or cable type receptacle JL-260C and ABS rear terminal cover JL-240TZ, and last one gasket is integrated.

Here show low price NEMA lighting controller and receptacle portfolio.

solution	light control+receptacle	content
1	JL-240XA&UM series	here quote price higher than 2,3 items
2	JL-240XHA&UM series	here quote price midule price solution
3	JL-240SXB&UM series	trend to cost price, and is popular to public people appreciation

Observação:

UM series type lighting controller or receptacle, example UM240, UM-205C and UM-204C, photocell shoring cap UM-208.
JL-240xHA with 5 pin or 7 pin.
JL-240SXB, it is feature super short rear terminal and integration gasket.

NEMA type Receptacle JL-250P

O JL-250P is a high-performance power tap receptacle that is compatible with the NEMA 7-pin JL240XA socket and is in line with the ANSI C136.41 standard. It supports 0–10 V and DALI dimming output and is designed for modern smart light poles. The product has a built-in voltage divider power supply that can provide stable power for microelectronic devices such as traffic monitoring systems, air quality inspection systems, AI smart cameras, tilt vibration sensors, microwave radar sensors and IoT control gateways. As a product that connects the light pole power supply to the light control system, the JL-250P effectively ensures that it does not interfere with the normal operation of the light controller while meeting the IP65 waterproof rating of the overall light pole system. This fully guarantees the reliability and safety of the product in harsh outdoor environments and provides solid support for smart lighting and smart city applications.

With NEMA 7 pin and dimming

The JL-250P power tap receptacle has all the feature of a NEMA 7-pin JL240XA socket. It complies with the ANSI C136.41 standard and supports the output of 0–10 V and DALI dimming control signals. This facilitates efficient lighting adjustment and management of smart light poles.
Thanks to its compatibility with mainstream dimming protocols, the JL-250P can interface seamlessly with multi-brand lighting controllers and intelligent systems. It can also adapt to future intelligent lighting trends and realise flexible, energy-saving lighting control solutions.Thanks to its compatibility with mainstream dimming protocols, the JL-250P can interface seamlessly with multi-brand lighting controllers and intelligent systems. It can also adapt to future intelligent lighting trends and realise flexible, energy-saving lighting control solutions.

Multifunctional application with built-in voltage divider power supply

Thanks to its built-in voltage divider power supply design, the JL-250P can power a variety of electronic devices, including traffic monitors, air quality inspection equipment, AI smart cameras, tilt vibration sensors, microwave radar sensors and Internet of Things control gateways. This meets the load requirements of smart light poles in multiple scenes.
The JL-250P power supply method ensures that while providing additional equipment power, it will not cause any interference to the normal switching and dimming functions of the light controller, and ensure the stable operation of the system.

Waterproof degree IP65

Once the JL-250P has been installed on the light pole, the overall protection level will reach IP65. This will effectively block rain and dust, enabling the equipment to adapt to complex outdoor climates and improving its reliability and service life.

Quais são os modos de alimentação oferecidos pelo JL-250P?

A flexibilidade define a iluminação inteligente moderna. A Long-Join projetou diversas versões do JL-250P para atender às diferentes necessidades de cada projeto.
As fontes P2 e P4 fornecem energia contínua no modo sempre ligado. Ambas são adequadas para câmeras e módulos de comunicação que precisam permanecer ativos 24 horas por dia, 7 dias por semana.
Os modelos P3 e P5 fornecem energia apenas quando a luz está acesa. Isso economiza energia para dispositivos que não são essenciais.
Alguns modelos incluem uma interface de sinal. Ela suporta 0–30 VCC, 250 mA máx., para IoT, dimerização remota e feedback para controladores de iluminação pública.

JL-250P Model Options

Modelo	Modo de saída	Interface de sinal	Aplicação típica
JL-250P2	Contínuo	Não	Câmeras de segurança 24 horas
JL-250P3	Somente com luz acesa	Não	displays controlados por luz
JL-250P4	Contínuo	Sim	Gateways sem fio / nós de IoT
JL-250P5	Somente com luz acesa	Sim	Sensores ambientais inteligentes

Here topic blog: Como o JL-250P Power Tap da Long-Join resolve o maior problema da iluminação pública inteligente — acesso seguro à energia sem necessidade de refazer a fiação.

Here wiring diagram, Access to mains power, or turn on light, and external prebook signal lines.

NEMA type Receptacle with Rear Terminal Cover

Here our ANSI/ NEMA type receptacle with rear cover, you can seek color style from black or gray, or others. Once install this receptacle, whether there is match troubleshoot of rear holder, you can read 3 pin JL-200 series instruction guides, special in available bracket. Rear terminal cover type Receptacle JL-200Z or JL-240TZA/B, next step introduce 240TZ.

7 PIN Receptacle JL-240TZ

Structure parts, Receptacle body with PBT, rear cover is craft from PC or ABS, and other part.
240TZA/B pin type, A-7 PIN, B-5 PIN.
This meet both power wire and signal wires. it is to lighting driver wiring way the same JL-240XA.
Mount way, by bracket fix receptacle external of lamp shade.
Optional bracket type iron or aluminium material. here you want special about this shape or size to nearly look find JL-200 parameter pdf.
Receptacle back terminal connector type either waterproof gland or universal part zinc nut and gasket.

Tomada para interruptor de sensor de luz UM-240

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Compare Differences Between UM-240 And JL-240XA

If you view the socket as a long-term infrastructure component, JL-240XA is the safer “install it once and forget it” option for demanding, high-visibility projects. ...

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Comparative Analysis Of Long-Join Photocontrol Receptacles: 3-Pin, 5-Pin, And 7-Pin

3-pin, 5-pin, and 7-pin receptacles are not rivals. They each match a different control level in use. ●3-pin handles robust on/off switching. ●5-pin adds 0–10 ...

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Powering Smart Streetlights: Why Long-Join’s UL2733 Receptacle Cable Sets the Industry Standard

Most people never see the UL2733 cable, but without it, a smart streetlight cannot think, communicate, or respond. It connects every part of the system ...

PBT + Glass Fiber + UV Stabilizer Is the Real Coastal Shield(1)

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JL-241J NEMA Receptacle Material Deep Dive: Why Modified PBT + Glass Fiber + UV Stabilizer Is the Real Coastal Shield

Coastal lighting is not forgiving, and plain PBT cannot survive it. That’s why the JL-241J uses a reinforced material recipe built for UV, salt spray, ...

NEMA type Surge Protective Device Kists JL-250G&JL-250F

The JL-250G and JL-250F provide efficient anti-surge protection and are ideal for smart light poles and outdoor lighting systems. The JL-250G is an 8-pin socket with wire terminals that meets the ANSI C136.41 standard. Its main body is made of PBT material and it comes with a 4 AWG power cord and a 16 AWG signal line. A high-temperature wire configuration is available to meet the needs of complex environments. The JL-250F has a built-in surge protection module with both differential and common mode surge suppression functions. When inserted into the JL-250G, it can effectively protect against voltage fluctuations, thereby improving system stability and safety.

In addition, the JL-250F features over-temperature protection, leakage protection, and fuse protection. It is also equipped with LED indicators and a central grounding hole design, ensuring visualisation of the equipment’s operating status and facilitating safe grounding. The maximum operating voltage is 342 V; a 480 V version will be available in the future to meet a variety of application needs.

JL-250G NEMA Receptacle Feature

This is a type 8 pin PBT body receptacle.
Center ground terminal, with JL-250F**C* series to achieve common mode surge protection.
Mount brackets, it keep JL-200x bracket is similar.
support power wire and signal wire.
and this rear terminal can be used waterproof cable connector type.
Center hole of receptacle by screwdriver rotate receptacle to direction point north, then light controller clockwise plug-into it.

JL-250F Surge Protection Feature

The JL-250F is a miniature surge protection module that can be inserted between the JL-250G and the controller. It integrates leakage protection, a built-in fuse and over-temperature protection functions, ensuring the lamp fixture device operates safely and stably.
The JL-250F module features a dual protection mechanism that combines leakage current suppression with a metal oxide varistor (MOV). This provides differential and common mode surge protection, safeguarding against transient high voltage and current surges in the line.
Center ground hole design.
Diagnostic LED, This module is equipped with LED work indicators that allow users to monitor the protection status in real time.
1.2/50us, it is towar to open open circuit waveform, and 8/20us, special in short circuit waveforms.
Present, this type module can support 347VAC, or 480v version available. however, 480V type JL-250F is developing in our teach team.

2 kinds Surge Protection Mode

Surge differential mode protection: This protection mode mainly targets transient surge voltages generated between the phase line and the neutral line (L-N), the phase line and the ground line (L-G) and the neutral line and the ground line (N-G). It absorbs and disperses electrical energy quickly to prevent surge voltages from entering the lamps and controllers.
Surge Common Mode Protection: For the surge voltage generated by changes in the line-to-ground voltage, the entire system is protected from common-mode interference.
This dual protection mechanism effectively suppresses both differential- and common-mode high-voltage transients, greatly reducing the risk of equipment damage caused by lightning strikes and power grid fluctuations. It also improves the reliability of light poles and their ancillary equipment.

FAQ About NEMA Receptacle Series

1. Is there an IK test for JL-200X, and JL-240XA?

No, however, you can contact our team to do it.

2. Is the material of the 7PIN socket contact pads brass or phosphor bronze?Is the gold plating on it 999 gold plated?

Gilded Pads made from phosphor bronze Nickel plated and gilded over 0.7um, and Gold plating per ASTM B 488.

3. How much torque does the locking force of the two screws on the base of the JL-240X light controller need to be controlled?

0.6-0.7N.m

4. JL-200X, 240V voltage, the customer only has two live wires, there is no zero wire, how to connect it?

If your JL-200X lamp requires 240 volts but there are only two live wires and no neutral wire, you can use one of the live wires as a neutral wire. This connection enables the lamp to work normally, but you must ensure that the circuit is safe and complies with the relevant electrical specifications.

5. What type of bracket is needed for the JL-240TZ back cover type socket?

you can take JL-200x offer bracket specifications. it is best outside mount on lamp fixture, then you choose metal hoop bind on nearby range of the light short arm pole.

6. Do they have NEMA Socket Power Taps, how many pins do they support, 3 power pins or DALI as well?

Here recommend JL-250P, and power pins can be connected 3/4/5 pin. 7 pin JL-250P (2,3,45)

7. Does the 7-wire socket with the orange-brown wire have positive and negative terminals?

No distinction. If two signal cables are required, it depends on the type of optical controller being connected. For example, JL-251C/252C/253C requires the brown/orange cable.

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