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Emergency Lighting Control Unit for KO Mounting

ELCU-200 Wattstopper
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Wattstopper’s ELCU-200 Emergency Lighting Control Unit is a self-contained device that allows any standard lighting control device to control emergency lighting in conjunction with normal lighting in any area within a building.

Voltage 120/277 VAC


  • Eliminates energy waste caused by emergency lighting that is always on
  • Integral push-to-test button activates emergency mode for a true test condition
  • Connects to EMTS-100 Remote Test Switch or other input to activate emergency on from a remote location
  • Operates as a control device or as a shunt
  • Senses local single circuit power failure
  • Zero cross switching technology for reliability and increased product life
  • Compatible with Wattstopper occupancy sensors, daylighting controls, lighting control panels, and dimmers


General Info
Product Line Wattstopper
UPC Number 754182923052
Country Of Origin China


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Questions & Answers

Can i use the ELCU to control/dim a LED fixture with integral emergency battery?

Asked by: WL
Good morning The ELCU does not have dimming capability so if you are trying to dim LED fixtures I would recommmend that you use a control modular like and LMRC 211 which is 0 to 10 volt dimming with the ELCU.
Answered by: Tier 1 Tech Support
Date published: 2022-09-15

Re: ELCU-200-347 Are the contacts rated for 20 amps , the spec sheet indicates 16a @120-347VAC Max Load Requirements . Please Clarify Thanks

Asked by: David
The ELCU-200-347 is rated for 16amps @120-347vac
Answered by: Tier 1 Tech Support
Date published: 2022-08-29

Good afternoon, can you control different lights in different rooms with one unit? Or do you have to install one device per room.

Asked by: Roman
You could if you run the lights in parallel but when you are trying to control certain lights in one area other lights may come on that you may not want to use at that moment in another area. I would recommend one per a room.
Answered by: Tier 1 Tech Support
Date published: 2022-06-21

Is the EL-CU-200 rated to switch LED drivers?

Asked by: Joseph
Yes, it can switch up to 20A of LED fixtures. But I would de-rate your load to much less because of the LED inrush and other issues. A 10A LED load is huge these days.
Answered by: Gordo
Date published: 2021-02-05
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