Power Relay
Power relays switch real load rather than signals, using a low-power coil to make and break currents that would destroy a general purpose relay's contacts. Panels call for them when a plug-in relay has burnt out under a load too big for it, when a full contactor would be oversized and wasteful for the duty, or when a socket-mounted device has to carry more current than sockets usually see.
As an authorized electrical distributor for multiple manufacturers, we stock power relays from IDEC, Finder and more across competing lines, in a range of coil voltages, base types and contact configurations, so you can match the coil voltage and base the panel supplies, compare contact configurations and amperage ratings across brands, and switch a load without oversizing to a contactor. Same-day shipping on in-stock items ordered before 2pm local time.
209 items
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SKU #:2237022
Part Number #:RH1B-ULD-DC24V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 14 mm W
$14.52 / EA
Typical price:$17.60 / EA
SKU #:2257024
Part Number #:RH1B-ULDC12V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 14 mm W
$12.14 / EA
Typical price:$14.72 / EA
SKU #:1027826
Part Number #:RH1B-ULDC24V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 14 mm W
$12.14 / EA
Typical price:$14.72 / EA
$10.04 / EA
Typical price:$12.17 / EA
SKU #:354970
Part Number #:RH2B-UAC110-120V
Fast Delivery Est.Nov 5 - Nov 9
Ships Same Day
540 In Stock Dimensions: 35.6 mm H x 27.5 mm W x 21 mm D
Terminal Type: Plug-In/Blade
Type: Compact Electromechanical
$10.34 / EA
Typical price:$12.79 / EA
SKU #:2250325
Part Number #:RH2B-UAC12V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 21 mm W
$10.55 / EA
Typical price:$12.79 / EA
SKU #:2432319
Part Number #:RH2B-UAC220-240V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 21 mm W
$12.14 / EA
Typical price:$14.72 / EA
SKU #:2179819
Part Number #:RH2B-UAC24V
Dimensions: 35.6 mm H x 27.5 mm W x 21 mm D
Terminal Type: Plug-In/Blade
Type: Compact Electromechanical
$10.55 / EA
Typical price:$12.79 / EA
SKU #:18979
Part Number #:RH2B-UDC12V
Fast Delivery Est.Nov 5 - Nov 9
Ships Same Day
209 In Stock Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 21 mm W
$9.95 / EA
Typical price:$12.06 / EA
SKU #:348469
Part Number #:RH2B-UDC24V
Fast Delivery Est.Nov 5 - Nov 9
Ships Same Day
37 In Stock Dimensions: 35.6 mm H x 27.5 mm W x 21 mm D
Terminal Type: Plug-In/Blade
Type: Compact Electromechanical
$9.95 / EA
Typical price:$12.06 / EA
SKU #:351356
Part Number #:RH2B-ULAC110-120V
Dimensions: 35.6 mm H x 27.5 mm W x 21 mm D
Terminal Type: Plug-In/Blade
Type: Compact Electromechanical
$13.35 / EA
Typical price:$16.18 / EA
SKU #:18980
Part Number #:RH2B-ULAC24V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 21 mm W
$13.35 / EA
Typical price:$16.18 / EA
SKU #:834777
Part Number #:RH2B-ULCAC110-120V
Fast Delivery Est.Nov 5 - Nov 9
Ships Same Day
182 In Stock Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 21 mm W
$14.76 / EA
Typical price:$17.89 / EA
SKU #:2347120
Part Number #:RH2B-ULCAC24V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 21 mm W
$14.76 / EA
Typical price:$17.89 / EA
$14.16 / EA
Typical price:$17.17 / EA
SKU #:2121662
Part Number #:RH2B-ULCDC24V
Fast Delivery Est.Nov 5 - Nov 9
Ships Same Day
384 In Stock Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 21 mm W
$13.88 / EA
Typical price:$17.17 / EA
SKU #:2309719
Part Number #:RH2B-ULD-DC24V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 21 mm W
$15.12 / EA
Typical price:$18.33 / EA
SKU #:2272009
Part Number #:RH2B-ULDC12V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 21 mm W
$12.76 / EA
Typical price:$15.47 / EA
SKU #:351098
Part Number #:RH2B-ULDC24V
Fast Delivery Est.Nov 5 - Nov 9
Ships Same Day
30 In Stock Dimensions: 35.6 mm H x 27.5 mm W x 21 mm D
Terminal Type: Plug-In/Blade
Type: Compact Electromechanical
$12.76 / EA
Typical price:$15.47 / EA
SKU #:2396645
Part Number #:RH2B-UTAC110-120V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 21 mm W
Mounting type: Top Bracket
$11.26 / EA
Typical price:$13.65 / EA
SKU #:357276
Part Number #:RH3B-UAC120V
Fast Delivery Est.Nov 5 - Nov 9
Ships Same Day
358 In Stock Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 31 mm W
$12.77 / EA
Typical price:$16.30 / EA
SKU #:2289666
Part Number #:RH3B-UAC24V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 31 mm W
$13.45 / EA
Typical price:$16.30 / EA
$16.22 / EA
Typical price:$19.66 / EA
SKU #:2203342
Part Number #:RH3B-UDC24V
Fast Delivery Est.Nov 5 - Nov 9
Ships Same Day
33 In Stock Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 31 mm W
$12.85 / EA
Typical price:$15.57 / EA
SKU #:935484
Part Number #:RH3B-ULAC120V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 31 mm W
$16.25 / EA
Typical price:$19.70 / EA
SKU #:2213077
Part Number #:RH3B-ULAC24V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 31 mm W
$16.25 / EA
Typical price:$19.70 / EA
SKU #:993997
Part Number #:RH3B-ULCAC120V
Fast Delivery Est.Nov 5 - Nov 9
Ships Same Day
56 In Stock Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 31 mm W
$17.65 / EA
Typical price:$21.39 / EA
SKU #:993998
Part Number #:RH3B-ULCDC24V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 31 mm W
$17.05 / EA
Typical price:$20.67 / EA
SKU #:935487
Part Number #:RH3B-ULDC24V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 31 mm W
$15.64 / EA
Typical price:$18.96 / EA
SKU #:355055
Part Number #:RH4B-UAC120V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 41 mm W
$16.51 / EA
Typical price:$20.01 / EA
SKU #:2179648
Part Number #:RH4B-UAC24V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 41 mm W
$16.51 / EA
Typical price:$20.01 / EA
$16.51 / EA
Typical price:$20.01 / EA
SKU #:2237022
Part Number #:RH1B-ULD-DC24V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 14 mm W
$14.52 / EA
Typical price:$17.60 / EA
SKU #:2257024
Part Number #:RH1B-ULDC12V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 14 mm W
$12.14 / EA
Typical price:$14.72 / EA
SKU #:1027826
Part Number #:RH1B-ULDC24V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 14 mm W
$12.14 / EA
Typical price:$14.72 / EA
$10.04 / EA
Typical price:$12.17 / EA
SKU #:354970
Part Number #:RH2B-UAC110-120V
Fast Delivery Est.Nov 5 - Nov 9
Ships Same Day
540 In Stock Dimensions: 35.6 mm H x 27.5 mm W x 21 mm D
Terminal Type: Plug-In/Blade
Type: Compact Electromechanical
$10.34 / EA
Typical price:$12.79 / EA
SKU #:2250325
Part Number #:RH2B-UAC12V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 21 mm W
$10.55 / EA
Typical price:$12.79 / EA
SKU #:2432319
Part Number #:RH2B-UAC220-240V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 21 mm W
$12.14 / EA
Typical price:$14.72 / EA
SKU #:2179819
Part Number #:RH2B-UAC24V
Dimensions: 35.6 mm H x 27.5 mm W x 21 mm D
Terminal Type: Plug-In/Blade
Type: Compact Electromechanical
$10.55 / EA
Typical price:$12.79 / EA
SKU #:18979
Part Number #:RH2B-UDC12V
Fast Delivery Est.Nov 5 - Nov 9
Ships Same Day
209 In Stock Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 21 mm W
$9.95 / EA
Typical price:$12.06 / EA
SKU #:348469
Part Number #:RH2B-UDC24V
Fast Delivery Est.Nov 5 - Nov 9
Ships Same Day
37 In Stock Dimensions: 35.6 mm H x 27.5 mm W x 21 mm D
Terminal Type: Plug-In/Blade
Type: Compact Electromechanical
$9.95 / EA
Typical price:$12.06 / EA
SKU #:351356
Part Number #:RH2B-ULAC110-120V
Dimensions: 35.6 mm H x 27.5 mm W x 21 mm D
Terminal Type: Plug-In/Blade
Type: Compact Electromechanical
$13.35 / EA
Typical price:$16.18 / EA
SKU #:18980
Part Number #:RH2B-ULAC24V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 21 mm W
$13.35 / EA
Typical price:$16.18 / EA
SKU #:834777
Part Number #:RH2B-ULCAC110-120V
Fast Delivery Est.Nov 5 - Nov 9
Ships Same Day
182 In Stock Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 21 mm W
$14.76 / EA
Typical price:$17.89 / EA
SKU #:2347120
Part Number #:RH2B-ULCAC24V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 21 mm W
$14.76 / EA
Typical price:$17.89 / EA
$14.16 / EA
Typical price:$17.17 / EA
SKU #:2121662
Part Number #:RH2B-ULCDC24V
Fast Delivery Est.Nov 5 - Nov 9
Ships Same Day
384 In Stock Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 21 mm W
$13.88 / EA
Typical price:$17.17 / EA
SKU #:2309719
Part Number #:RH2B-ULD-DC24V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 21 mm W
$15.12 / EA
Typical price:$18.33 / EA
SKU #:2272009
Part Number #:RH2B-ULDC12V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 21 mm W
$12.76 / EA
Typical price:$15.47 / EA
SKU #:351098
Part Number #:RH2B-ULDC24V
Fast Delivery Est.Nov 5 - Nov 9
Ships Same Day
30 In Stock Dimensions: 35.6 mm H x 27.5 mm W x 21 mm D
Terminal Type: Plug-In/Blade
Type: Compact Electromechanical
$12.76 / EA
Typical price:$15.47 / EA
SKU #:2396645
Part Number #:RH2B-UTAC110-120V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 21 mm W
Mounting type: Top Bracket
$11.26 / EA
Typical price:$13.65 / EA
SKU #:357276
Part Number #:RH3B-UAC120V
Fast Delivery Est.Nov 5 - Nov 9
Ships Same Day
358 In Stock Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 31 mm W
$12.77 / EA
Typical price:$16.30 / EA
SKU #:2289666
Part Number #:RH3B-UAC24V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 31 mm W
$13.45 / EA
Typical price:$16.30 / EA
$16.22 / EA
Typical price:$19.66 / EA
SKU #:2203342
Part Number #:RH3B-UDC24V
Fast Delivery Est.Nov 5 - Nov 9
Ships Same Day
33 In Stock Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 31 mm W
$12.85 / EA
Typical price:$15.57 / EA
SKU #:935484
Part Number #:RH3B-ULAC120V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 31 mm W
$16.25 / EA
Typical price:$19.70 / EA
SKU #:2213077
Part Number #:RH3B-ULAC24V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 31 mm W
$16.25 / EA
Typical price:$19.70 / EA
SKU #:993997
Part Number #:RH3B-ULCAC120V
Fast Delivery Est.Nov 5 - Nov 9
Ships Same Day
56 In Stock Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 31 mm W
$17.65 / EA
Typical price:$21.39 / EA
SKU #:993998
Part Number #:RH3B-ULCDC24V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 31 mm W
$17.05 / EA
Typical price:$20.67 / EA
SKU #:935487
Part Number #:RH3B-ULDC24V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 31 mm W
$15.64 / EA
Typical price:$18.96 / EA
SKU #:355055
Part Number #:RH4B-UAC120V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 41 mm W
$16.51 / EA
Typical price:$20.01 / EA
SKU #:2179648
Part Number #:RH4B-UAC24V
Contact Rating: 110/220 V AC/30 V DC
Dimensions: 27.5 mm H x 41 mm W
$16.51 / EA
Typical price:$20.01 / EA
$16.51 / EA
Typical price:$20.01 / EA








