Functional Devices RIB2421SB : Enclosed Power Relay, 20 Amp Contact Rating, Relay Contact Type: SPST-N/O + Override, 24 Vac/dc/208-277 Vac/120 Vac Coil, NEMA 1 Housing

Functional Devices RIB2421SB : Enclosed Power Relay, 20 Amp Contact Rating, Relay Contact Type: SPST-N/O + Override, 24 Vac/dc/208-277 Vac/120 Vac Coil, NEMA 1 Housing

SPECIFICATIONS 

# Relays & Contact Type: One (1) SPST Continuous Duty Coil
Expected Relay Life: 10 million cycles minimum mechanical
Operating Temperature: -30 to 140° F
Humidity Range: 5 to 95% (noncondensing)
Operate Time: 18ms
Relay Status: LED On = Activated
Dimensions: 2.30" x 3.20" x 1.80" with .50" NPT Nipple
Wires: 16", 600V Rated
Approvals: UL Listed, UL916, UL864, C-UL
California State Fire Marshal, CE, RoHS
Housing Rating: UL Accepted for Use in Plenum, NEMA 1
Gold Flash: No
Override Switch: Yes

Contact Ratings: 
20 Amp Resistive @ 277 Vac
20 Amp Ballast @ 277 Vac (N/O)
10 Amp Ballast @ 277 Vac (N/C)
Not rated for Electronic Ballast
10 Amp Tungsten @ 120 Vac (N/O)
770 VA Pilot Duty @ 120 Vac
1,110 VA Pilot Duty @ 277 Vac
2 HP @ 277 Vac
1 HP @ 120 Vac

Coil Voltage Input: 

24 Vac/dc ; 208-277 Vac ; 120 Vac ; 50-60 Hz
Drop Out = 2.1 Vac / 3.8 Vdc
Pull In = 18 Vac / 22 Vdc

Coil Current:
83 mA @ 24 Vac
47 mA @ 120 Vac
69 mA @ 208-277 Vac
47 mA @ 30 Vdc

Notes:
Order Normally Closed by adding “-NC” to end of model number