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Switches & Relays

Displaying 1-96 of 117 results


Taco SR501-2
Zone Relay 00 Switching 1 Zone 120 Volt 5 Amps Printed Circuit Board External LED
$60.38
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Taco SR503-2
Zone Relay 00 Switching 3 Zone with Priority 120 Volt 15 Amps Printed Circuit Board External LED
$153.10
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Taco SR502-2
Zone Relay 00 Switching 2 Zone with Priority 120 Volt 15 Amps Printed Circuit Board External LED
$143.87
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Taco SR504-2
Zone Relay 00 Switching 4 Zone with Priority 120 Volt 20 Amps Printed Circuit Board External LED
$187.62
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Functional Devices RIBU1C
Pilot Control Relay SPDT 10 to 30VAC/VDC/120VAC 10A
$10.33
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Taco SR506-2
Zone Relay 00 Switching 6 Zone with Priority 120 Volt 20 Amps Printed Circuit Board External LED
$233.52
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell R8222D1014
General Purpose Relay Heavy Duty 12VA 24V DPDT Double Quick Connect Spade Terminal
$17.31
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Functional Devices RIB2401D
Power Control Relay DPDT 24VAC/VDC/120VAC 10A Building Automation and HVAC Controls Plenum NEMA 1
$17.24
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Sealed Units NS2000031
Pressure Switch Universal Air Sensing 10 Inch Water Column
$23.33
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Sealed Units RC0410
Overload Relay RCO Capacitor 243-292 Microfarad Quick Connect 115 Volt
$12.44
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Taco SR503-EXP-1
Zone Relay 00 Switching 3 Zone with Priority and Power Port Option 120 Volt 20 Amps Printed Circuit Board External LED
$160.15
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Mars 90340
Relay Power-Power 903 DPDT Switching Quick Connect 24 Volt
$7.90
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Taco SR024-001RP
Relay 24V
$26.67
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Taco SR506-EXP-1
Zone Relay 00 Switching 6 Zone with Priority and Power Port Option 120 Volt 20 Amps Printed Circuit Board External LED
$244.90
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell R845A1030
Control Relay Switching with Internal Transformer 24V 0.4A DPST
$87.89
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Taco SR504-EXP-1
Zone Relay 00 Switching 4 Zone with Priority and Power Port Option 120 Volt 20 Amps Printed Circuit Board External LED
$199.36
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Sealed Units RC0210
Overload Relay RCO Combination 115 Volt
$15.52
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Mars 90293
Relay 903 General Purpose Single Pole Double Throw 24 Volt
$8.64
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02527747002
Rollout Switch Temperature Control 200 Open/Manual Close 200 DEG
$9.63
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell R8239A1052
Fan Center Relay 40VA SPDT 4x4" Junction Box
$45.99
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Mars 90290
Relay 903 General Purpose Single Pole Single Throw 24 Volt
$7.49
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell R8285A1048
Fan Center Relay Tradeline 40VA SPDT 4x4" Junction Box
$47.99
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02527733002
Rollout Control DPST 175 Open 95 Close
$15.20
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Taco SR120-001RP
Relay 120V
$25.88
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Functional Devices RIBXKTF
Sensor Current 0.25 to 150 Amps 30 VAC
$17.56
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Caleffi ZSR103
Zone Relay ZSR 3 Zone Switch Pump Control 12 Volt ABS
$161.94
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02527792001
Rollout Control 200 Open Manual Close
$5.35
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell R8222B1067
General Purpose Relay 24V SPDT 1/4" Quick Connect
$16.17
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Functional Devices RIBU2C
Pilot Control Relay 2 SPDT 10 to 30VAC/VDC/120VAC 10A
$18.89
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell R4222D1013
General Purpose Relay 120V DPDT
$18.64
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell Commercial 107408
Heat Conductive Compound 4OZ
$12.58
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Mars 90380
Relay 903 Heavy Duty Normally Open/Normally Closed Universal Bracket 24 Volt
$8.62
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Caleffi ZVR103
Zone Relay ZVR 3 Zone Switch Valve Control 40 Volt ABS
$122.99
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Functional Devices RIB2401B
Power Control Relay SPDT 24VAC/VDC/120VAC 20A Building Automation and HVAC Controls Plenum NEMA 1
$15.32
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell 121371L
Well Assembly Replacement 1/2 Inch Copper
$37.94
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Sealed Units SFC300400
Pressure Switch Fan Cycling Low Pressure SPST Open 300-400 Close Pounds per Square Inch Direct
$14.22
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Mars 90370
Relay 903 Single Pole Double Throw Heavy Duty Universal Bracket 24 Volt
$8.62
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02527747016
Rollout Switch Flame 320 Open/Manual Close
$6.42
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02426089000
Relay Time Delay Motor
$27.17
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell RA89A1074
Control Relay 120V Switching with Internal Transformer 24V 0.4A SPST
$70.61
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02424103000
Control Relay SPST 24V 50/60HZ
$13.82
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Caleffi ZVR104
Zone Relay ZVR 4 Zone Switch Valve Control 40 Volt ABS
$156.17
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Caleffi ZSR106
Zone Relay ZSR 6 Zone Switch Pump Control 20 Volt ABS
$235.77
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02527792009
Rollout Switch Flame 350 Manual Open/Close Manual Reset
$6.98
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Caleffi ZSR101
Zone Relay ZSR Single Zone Switch 24 Volt ABS
$67.61
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Caleffi ZSR104
Zone Relay ZSR 4 Zone Switch Pump Control 12 Volt ABS
$190.09
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Functional Devices RIB24P
Power Control Relay DPDT 24VAC/DC 20A Building Automation and HVAC Controls Plenum NEMA 1
$30.75
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell R8239B1076
Fan Center Relay Super Tradeline 50VA DPDT 4x4" Junction Box
$64.72
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Mars 90341
Relay Power-Power 903 DPDT Switching Quick Connect 120 Volt
$9.94
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02421678700
Control Relay SPST 24V
$14.54
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Functional Devices RIBXKF
Sensor Current
$13.64
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Taco SR501-EXP
Zone Relay 00 Switching 1 Zone with Power Port Options 120 Volt 5 Amps Printed Circuit Board External LED
$146.55
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Mars 90294
Relay 903 General Purpose Single Pole Double Throw 110/120 Volt
$10.73
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Functional Devices RIBU1S
Pilot Control Relay with Hand Off Automatic SPST NO 10 to 30VAC/VDC/120VAC 10A
$17.43
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Sealed Units SUPR
Relay Universal Potential Bracket 110-270 Voltage Alternating Current 30 Amp
$17.33
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02419082738
Relay Heat Sequencer Time Delay
$19.85
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Sealed Units SFC210275
Pressure Switch Fan Cycling Low Pressure SPST Open 210-275 Close Pounds per Square Inch Direct
$14.22
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell R4222D1021
General Purpose Relay 208/240V 6A DPDT 1/4" Quick Connect
$19.47
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Caleffi ZVR106
Zone Relay ZVR 6 Zone Switch Valve Control 80 Volt ABS
$193.98
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02419082028
Control Relay Heat Sequencer 24
$14.82
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Mars 90342
Relay Power-Power 903 DPDT Switching Quick Connect 240 Volt
$8.11
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02426088001
Relay Time Delay Control Board 18-30V for HVACR Equipment
$34.72
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02426090001
Relay Blower/Draft Motor Time Delay F/DBUC-T 072
$24.27
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Copeland 940-0001-55
Relay Potential 040-0166-15 375 Volt
$49.59
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell TAZ-4
Control Panel TotalZONE Add-A-Zone 4 Zone 24V for Zoning Add a Zone Panel
$223.30
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Mars 90295
Relay 903 General Purpose Single Pole Double Throw 208/240 Volt
$9.42
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02419082039
Relay Heat Sequencer 24V for BPGM 036-060
$24.38
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02425910700
Control Relay DPST 24V 50/60HZ
$29.16
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Sealed Units SFC150225
Pressure Switch Fan Cycling Low Pressure SPST Open 150-225 Close Pounds per Square Inch Direct
$12.23
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Copeland 940-0001-60
Relay Potential 040-0001-60 383 Volt
$62.60
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Functional Devices RIB2401SB
Power Control Relay SPST NO 24VAC/VDC/120VAC 20A Building Automation and HVAC Controls Plenum NEMA 1
$19.79
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell AQ15540B
Zoning Module Aquatrol Replacement for AQ25542 4 Zone Expansion 120V -32 to 130DEG F
$118.55
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Functional Devices RIBMU1C
Control Relay SPDT 10-30VAC/VDC/120VAC 15A Track Mount
$13.88
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Mars 90292
Relay 903 General Purpose Single Pole Single Throw 208/240 Volt
$12.36
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Functional Devices MT212-12
Relay Track Mount
$4.63
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Mars 19005
Relay Potential Break Off Bracket 395 Volt
$41.23
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Functional Devices RIBMU1S
Control Relay SPST/NO 10-30VAC/VDC/120VAC 15A Track Mount
$15.87
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Navien PFMZ03P001
Switching Relay SMARTZONE+ 3ZONE NCB/NHB
$120.00
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02420878703
Relay Time Delay 24V
$48.65
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Mars 19003
Relay 190 Potential Break Off Bracket 395 Volt
$41.23
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Copeland 940-0001-68
Relay Potential 040-0166-27 420 Volt
$50.51
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-S90-340
Relay Switch DPDT 24V 50/60HZ -40 to 130DEG F
$13.37
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Mars 19004
Relay 190 Potential Break Off Bracket 332 Volt
$39.72
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell Commercial 112630AA
Well Assembly for T675-T678 1/2 Inch Copper
$36.05
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02411772700
Control Relay SPDT 24V 60HZ
$32.31
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02419082019
Relay Heat Sequencer 24V for Coleman Equipment
$22.40
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02424111000
Control Relay DPST 50/60HZ
$19.45
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02425800700
Relay Time Delay 24V HVACR Equipment
$51.45
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Mars 19008
Relay 190 Potential Break Off Bracket 336 Volt
$39.72
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell Commercial 50001774-001
Well Immersion 5" Stainless Steel
$16.12
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Taco SR501-OR
Zone Relay FuelMizer 00 Switching 1 Zone 120 Volt Class 2 Printed Circuit Board External LED 4-1/4 x 5-1/4 x 2-3/4 Inch
$145.59
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Mars 19006
Relay Potential Break Off Bracket 420 Volt
$47.32
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Johnson Controls CSD-SF0C0-1
Current Switch Device NO 0.25 to 200A
$27.41
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02419082017
Relay Heat Sequencer for Furnace
$15.74
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02425986000
Relay Control 22V SPST
$9.76
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02527747003
Rollout Switch 160 Open/Manual Close 160 DEG
$34.72
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Displaying 1-96 of 117 results

 

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