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.

Refine by

No filters applied

Browse by Brand, Mounting & more Hide Filters Show Filters

Compare Add to Cart The item has been added

Functional Devices

Functional Devices RIBM2402B : Track Mount Power Relay, 20 Amp SPDT, 24 Vac/dc/208-277 Vac Coil, 4.00" Track Mount

MSRP:

Was:

Now: (Inc. Sales Tax)

MSRP: $45.82

Was:

Now: $22.91
Compare Add to Cart The item has been added

Functional Devices

Functional Devices RIBM2402SB : Track Mount Power Relay, 20 Amp SPST + Override, 24 Vac/dc/208-277 Vac Coil, 4.00" Track Mount

MSRP:

Was:

Now: (Inc. Sales Tax)

MSRP: $62.40

Was:

Now: $31.20
Compare Add to Cart The item has been added

Functional Devices

Functional Devices RIBM2402SBC : Track Mount Power Relay, 20 Amp SPDT + Override, 24 Vac/dc/208-277 Vac Coil, 4.00" Track Mount

MSRP:

Was:

Now: (Inc. Sales Tax)

MSRP: $78.47

Was:

Now: $39.24
Compare Add to Cart The item has been added

Functional Devices

Functional Devices RIBM243PN : Track Mount Power Relay, 30 Amp 3PDT, 24 Vac/dc Coil, 4.00" Track Mount

MSRP:

Was:

Now: (Inc. Sales Tax)

MSRP: $130.34

Was:

Now: $65.17
Compare Add to Cart The item has been added

Functional Devices

Functional Devices RIBM24ZL : Track Mount Power Relay, 30 Amp DPST-N/O, 24 Vac/dc Coil, 4.00" Track Mount

MSRP:

Was:

Now: (Inc. Sales Tax)

MSRP: $107.42

Was:

Now: $53.71
Compare Add to Cart The item has been added

Functional Devices

Functional Devices RIBM24ZL-NC : Track Mount Power Relay, 30 Amp DPST-N/C, 24 Vac/dc Coil, 4.00" Track Mount

MSRP:

Was:

Now: (Inc. Sales Tax)

MSRP: $111.55

Was:

Now: $55.78
Compare Add to Cart The item has been added

Functional Devices

Functional Devices RIBM24ZL-NONC : Track Mount Power Relay, 30 Amp DPST-N/O/N/C, 24 Vac/dc Coil, 4.00" Track Mount

MSRP:

Was:

Now: (Inc. Sales Tax)

MSRP: $120.43

Was:

Now: $60.22
Compare Add to Cart The item has been added

Functional Devices

Functional Devices RIBM24ZN : Track Mount Power Relay, 30 Amp DPDT, 24 Vac/dc Coil, 4.00" Track Mount

MSRP:

Was:

Now: (Inc. Sales Tax)

MSRP: $111.00

Was:

Now: $55.50
Compare Add to Cart The item has been added

Functional Devices

Functional Devices RIBMN24ZL : Track Mount Power Relay, 30 Amp DPST-N/O, 24 Vac/dc Coil, 2.75" Track Mount

MSRP:

Was:

Now: (Inc. Sales Tax)

MSRP: $115.43

Was:

Now: $57.72
Compare Add to Cart The item has been added

Functional Devices

Functional Devices RIBMN24ZL-NC : Track Mount Power Relay, 30 Amp DPST-N/C, 24 Vac/dc Coil, 2.75" Track Mount

MSRP:

Was:

Now: (Inc. Sales Tax)

MSRP: $117.08

Was:

Now: $58.54
Compare Add to Cart The item has been added

Functional Devices

Functional Devices RIBT2401B : Enclosed Power Relay, 20 Amp Contact Rating, Relay Contact Type: SPDT, 24 Vac/dc/120 Vac Coil, Hi/Lo Voltage Separation, NEMA 1 Housing

MSRP:

Was:

Now: (Inc. Sales Tax)

MSRP: $58.37

Was:

Now: $29.19
Compare Add to Cart The item has been added

Functional Devices

Functional Devices RIBT2401SB : Enclosed Power Relay, 20 Amp Contact Rating, Relay Contact Type: SPST + Override, 24 Vac/dc/120 Vac Coil, Hi/Lo Voltage Separation, NEMA 1 Housing

MSRP:

Was:

Now: (Inc. Sales Tax)

MSRP: $70.25

Was:

Now: $35.13

Previous
1
2
3
4
5
6
Next