Lighting Controls

EM Series



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EM Series

Photo Switch EM Series

Photo Switch

 

The Wattstopper EM Series is a low voltage photocell used for controlling exterior lighting and signage. The photocell provides an ON signal when the ambient light level drops below a preset dark setpoint. It then provides a signal OFF as the ambient light level rises above the preset light setpoint. The photocell relay contact red wires are connected to a panel, to a low voltage controlled loads or directly to a Building Automation System.


Products
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QtyModelDescriptionIn StockList PriceInternet Price
EM-24A2 24VAC PHOTO CONTROL RELAY CONTACT In Stock200.56160.45
EM-24D2 24 VDC EXTERIOR PHOTOCELL WITH RELAY CONTACT In Stock213.78171.02

Accessories

No accessories found
Features
  • On at dusk, off at dawn operation
  • Simple installation and wiring
  • One set of normally open, isolated relay contacts
  • 8-second time delay and built-in setpoint deadband
  • 1/2″ threaded male conduit base
  • Weatherproof enclosure
  • Economical input to BAS or lighting control systems
  • Ideal for parking, billboard, or security lighting
Specifications

Supply Voltage:24 VAC @ 1 VA, 24 VDC @ 41.6 mA

Relay Type:SPST, N.O., Dry contact

Relay Rating:30 VAC/VDC @1A

Sensor Type: Cadmium Sulfide photocell

Accuracy:±10% fc

Setpoint: On at dusk, off at dawn operation

Slide cover adjust (ON/OFF from 1-15 fc):

Light Differential:Approximately 3 fc

Off delay:Approximately 8 minutes

Operating Temperature:-25° to 125℉ (-31.7° to 51.7℃)

Operating Humidity:0% to 100% Condensing

Wiring Terminations:8″' Pigtail Leads, 20AWG

Mounting:Stem with 1/2″ thread fitting

Enclosure Rating:NEMA 3R weatherproof

Dimensions:2.64″ x 1.57″x 1.89″, (67.1 x 39.9 x 48.0 mm)

Weight:0.4 lb (0.18 Kg)

Approvals:Compatible with Title 24 when used in a system

Warranty:1 year

Certifications


Download Additional Data

document   EM Series Catalog Page
document   EM Photocell Datasheet