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Functional Devices ESR02P - Emergency Relay 20A DPDT (208-277VAC)

Functional Devices
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Functional Devices ESR02P is a UL 924 listed emergency lighting bypass/shunt relay designed for reliable control and protection in emergency lighting circuits. This relay features a 20 Amp DPDT contact rating with a 208-277 VAC coil voltage, a short circuit current rating of 5,000 Amps, and supports 50/60 Hz operation. Housed in a NEMA 1 enclosure, it weighs 5.19 lb, includes a threaded hub mount for 1/2" knockout, and provides wiring terminations via pigtails (16" 18 AWG for coils, 12 AWG for contacts) suitable for 12 to 24 AWG wiring. It is CE Certified, RoHS Compliant, and UL Listed, with a mechanical endurance of 10 million cycles and an operating temperature range of -30° to 140°F. This relay is typically used in industrial and commercial emergency lighting systems requiring dependable shunt or bypass functionality.

Key Features & Specifications
  • Type: Emergency Lighting Bypass/Shunt Relay
  • Contact Rating: 20 Amp DPDT
  • Coil Voltage: 208-277 VAC, 50/60 Hz
  • Short Circuit Current Rating (SCCR): 5,000 Amps
  • Enclosure: NEMA 1
  • Mounting: Threaded Hub for 1/2" knockout
  • Wiring: Pigtails 16" 18 AWG for coils, 12 AWG for contacts
  • Operating Temperature: -30° to 140°F (-34° to 60°C)
  • Mechanical Endurance: 10 million cycles minimum
  • Visual Indication: Relay status LED
  • Dimensions: Approximately 4" x 4" x 1.8"
  • Weight: 5.19 lb
  • Country of Origin: United States
  • Certification: CE Certified, RoHS Compliant, UL 924, UL Listed