Name: JL-251/252/253 NEMA Interface DALI
Brand: Shanghai Long-Join Intelligent Technology Inc.

JL-251/252/253 NEMA Interface DALI Overview:

The JL-251/252/253 series of dimming photocontrols is suitable for automatically managing the brightness of dimmable LED street lights (0~10V) based on the surrounding daylight levels. These devices feature microprocessor circuitry paired with an IR-filtered phototransistor. They are equipped with a robust surge arrester (MOV) to shield the lamp from inrush currents and sudden spikes caused by lightning. Additionally, a built-in 10-second time-delay function guards against overactivation due to vehicle headlights or lightning strikes in the dark. The product ensures consistent dependability, with the relay designed for a service life exceeding 10,000 cycles, and an even longer lifespan when used in conjunction with the optional sandwich cover. This series adheres to ANSI C136.41 standards for twist lock terminals and is UL-listed under the standard for Plug-In, Locking Type Photocontrols for Area Lighting, ANSI/UL773.

JL-251/252/253 NEMA Interface DALI Specifications

Model No.	JL-251C	JL-252C	JL-253C
Rated Voltage	120~277VAC
Applicable Voltage Range	105~305VAC
Rated frequency	50/60Hz
Dimming Output	DALI
Spectral Acquisition Range	350~1100nm；Peak wavelength 590nm
Rated Loading	1000W Tungsten, 1800VA Ballast, 8A e-Ballast @120VAC/ 5A e-Ballast @208-277VAC
Operate Levels	Turn-On＜100Lx，Turn-Off＞100Lx / per client request
Typical Time Delay	5s
Ambient Temperature	-40°C ~ +70 °C
Related Humidity	96%
Fail Mode	Fail-On
Shell material	PC+PC
High protection	Double Shell
Lightning Protection	4KV/2KA
Surge protection	MYL1-40K511
IP level	IP67
Factory Settings	Illuminance/Delayed Customizable	Illuminance/Delayed/Reduction Duration Customizable
Certifications