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UL924 Automatic Load Relay

By Hubbell Control Solutions 

Collection Name:  Emergency Lighting Controls Product Line

By Hubbell Control Solutions
The UL924 Automatic Load Relay (ALCR1277) allows the emergency lighting in a space to be controlled along with the normal lighting while ensuring that the emergency lighting will be forced to full bright upon loss of normal power to the space.
  • Meets NEC Article 700 requirements for emergency lighting
  • Dual voltage, 120 or 277V operation
  • Normally closed contacts for emergency lighting
  • Normally open contacts for 0-10V dimming override
  • Provision for remote test button or fire alarm interface
  • Multi-color function LED
  • Suitable for use in return air plenums
  • 5 year warranty

Product Details


Construction Material - Main Flame retardant UL 94-5VA, Thermoplastic
Operating Temperature -40°F to 149°F (-40°C to 65°C)
Type Controls
Warranty Length 5 year warranty

Electrical Ratings

Frequency Rating 50-60 Hz

Certifications and Compliance

Industry Standard(s)
  • cULus Listed
  • UL 924

Resources and Downloads