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Functional Devices RIB2402SB : Enclosed Power Relay, 20 Amp Contact Rating, Relay Contact Type: SPST-N/O + Override, 24 Vac/dc/208-277 Vac Coil Voltage, NEMA 1 Housing
MSRP: $87.20Your Price: $43.60 -
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Functional Devices RIB2402SB-NC : Enclosed Power Relay, 20 Amp Contact Rating, Relay Contact Type: SPST-N/C + Override, 24 Vac/dc/208-277 Vac Coil Voltage, NEMA 1 Housing
MSRP: $108.10Your Price: $54.05 -
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Functional Devices RIB2402SBC : Enclosed Power Relay, 20 Amp Contact Rating, Relay Contact Type: SPDT + Override, 24 Vac/dc/208-277 Vac Coil Voltage, NEMA 1 Housing
MSRP: $137.80Your Price: $68.90 -
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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
MSRP: $117.00Your Price: $58.50 -
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Functional Devices RIB2421SB-NC : Enclosed Power Relay, 20 Amp Contact Rating, Relay Contact Type: SPST-N/C + Override, 24 Vac/dc/208-277 Vac/120 Vac Coil, NEMA 1 Housing
MSRP: $119.20Your Price: $59.60 -
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Functional Devices RIB243P : Enclosed Power Relay, 20 Amp Contact Rating, Relay Contact Type: 3PST-N/O, 24 Vac/dc Coil, NEMA 1 Housing
MSRP: $261.50Your Price: $130.75 -
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Functional Devices RIB24Z : Enclosed Power Relay, 30 Amp Contact Rating, Relay Contact Type: SPST-N/O + SPST-N/C, 24 Vac/dc Coil, NEMA 1 Housing
MSRP: $156.20Your Price: $78.10 -
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Functional Devices RIBM013PN : 4.00" Track Mount Power Relay, 30 Amp 3PDT, 120 Vac Coil
MSRP: $182.60Your Price: $91.30 -
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Functional Devices RIBM023PN : 4.00" Track Mount Power Relay, 30 Amp 3PDT, 208-277 Vac Coil
MSRP: $257.30Your Price: $128.65 -
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Functional Devices RIBM043PN : 4.00" Track Mount Power Relay, 30 Amp 3PDT, 480 Vac Coil
MSRP: $286.10Your Price: $143.05 -
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Functional Devices RIBM2401B : Track Mount Power Relay, 20 Amp SPDT, 24 Vac/dc/120 Vac Coil, 4.00" Track Mount
MSRP: $47.50Your Price: $23.75 -
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Functional Devices RIBM2401SB : Track Mount Power Relay, 20 Amp SPST + Override, 24 Vac/dc/120 Vac Coil, 4.00" Track Mount
MSRP: $86.50Your Price: $43.25 -
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Functional Devices RIBM2401SBC : Track Mount Power Relay, 20 Amp SPDT + Override, 24 Vac/dc/120 Vac Coil, 4.00" Track Mount
MSRP: $92.60Your Price: $46.30 -
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Functional Devices RIBM2402B : Track Mount Power Relay, 20 Amp SPDT, 24 Vac/dc/208-277 Vac Coil, 4.00" Track Mount
MSRP: $70.90Your Price: $35.45 -
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Functional Devices RIBM2402SB : Track Mount Power Relay, 20 Amp SPST + Override, 24 Vac/dc/208-277 Vac Coil, 4.00" Track Mount
MSRP: $89.10Your Price: $44.55 -
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Functional Devices RIBM2402SBC : Track Mount Power Relay, 20 Amp SPDT + Override, 24 Vac/dc/208-277 Vac Coil, 4.00" Track Mount
MSRP: $119.80Your Price: $59.90 -
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Functional Devices RIBM243PN : Track Mount Power Relay, 30 Amp 3PDT, 24 Vac/dc Coil, 4.00" Track Mount
MSRP: $214.60Your Price: $107.30 -
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Functional Devices RIBM24ZL : Track Mount Power Relay, 30 Amp DPST-N/O, 24 Vac/dc Coil, 4.00" Track Mount
MSRP: $153.30Your Price: $76.65 -
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Functional Devices RIBM24ZL-NC : Track Mount Power Relay, 30 Amp DPST-N/C, 24 Vac/dc Coil, 4.00" Track Mount
MSRP: $181.50Your Price: $90.75 -
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Functional Devices RIBM24ZL-NONC : Track Mount Power Relay, 30 Amp DPST-N/O/N/C, 24 Vac/dc Coil, 4.00" Track Mount
MSRP: $195.90Your Price: $97.95
Power Relays
Shop our selection of Functional Devices RIB (Relay in a Box) power relays—trusted for HVAC, lighting, and building automation control. These enclosed and track-mount relays come pre-wired in NEMA 1 housings and support a variety of coil voltages (12V to 480V) and contact types (SPST, SPDT, DPDT, 3PDT).
Choose models with LED indicators, manual overrides, or time delay functions to simplify installation and diagnostics. Ideal for fans, pumps, lighting, and system integration—whether you're wiring a panel or automating a building. UL listed. Made in the USA.