Refine Search
Search

End Connection

Amperage

Input Supply Rating

Signal Output

Switches & Relays

Displaying 1-96 of 129 results


Taco SR501-2
Zone Relay 00 Switching 1 Zone 120 Volt 5 Amps Printed Circuit Board External LED
$62.76
 / 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
$159.14
 / 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
$149.55
 / 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
$195.04
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Functional Devices RIBU1C
Pilot Control Relay SPDT 10 to 30VAC/VDC/120VAC 10A
$10.81
 / 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
$242.74
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell R8222D1014/U
Multi-Purpose Relay 24 Volt DPDT Heavy Duty 12VA 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
$18.28
 / 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
$11.92
 / 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
$164.87
 / 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
$254.58
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Sealed Units RC0210
Overload Relay RCO Combination 115 Volt
$13.27
 / 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
$207.24
 / 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.

Honeywell R845A1030/U
Multi-Purpose Relay 24 Volt 0.4 Amp DPST Switching with Internal Transformer
$87.89
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Mars 90340
Relay Power-Power 903 DPDT Switching Quick Connect 24 Volt
$8.30
 / 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
$9.92
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell R8239A1052/U
Multi-Purpose Relay 40 Volt SPDT
$45.99
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell THM6000R7001/U
Control RedLink Internet Gateway with Cable Power Cord
$74.34
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Mars 90290
Relay 903 General Purpose Single Pole Single Throw 24 Volt
$7.86
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell R8285A1048/U
Multi-Purpose Relay Tradeline 40 Volt SPDT
$47.99
 / 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.

Source 1 S1-02527733002
Rollout Control DPST 175 Open 95 Close
$25.03
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell Commercial 107408/U
Heat Conductive Compound 4 Ounce
$12.78
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02527792001
Rollout Control 200 Open Manual Close
$5.52
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Functional Devices RIBXKTF
Sensor Current 0.25 to 150 Amps 30 VAC
$14.46
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell 121371L/U
Well Assembly Replacement 1/2 Inch Copper
$37.94
 / 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
$16.24
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Caleffi ZSR103
Zone Relay ZSR 3 Zone Switch Pump Control 12 Volt ABS
$160.00
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

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

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

Functional Devices RIBU2C
Pilot Control Relay 2 SPDT 10 to 30VAC/VDC/120VAC 10A
$21.14
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Mars 90380
Relay 903 Heavy Duty Normally Open/Normally Closed Universal Bracket 24 Volt
$9.05
 / 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
$14.61
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell RA89A1074/U
Multi-Purpose Relay 24 Volt 0.4 Amp SPST 120V Switching with Internal Transformer
$70.61
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Caleffi ZVR103
Zone Relay ZVR 3 Zone Switch Valve Control 40 Volt ABS
$121.33
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02527792009
Rollout Switch Flame 350 Manual Open/Close Manual Reset
$7.19
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02527747016
Rollout Switch Flame 320 Open/Manual Close
$4.94
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Mars 90370
Relay 903 Single Pole Double Throw Heavy Duty Universal Bracket 24 Volt
$9.05
 / 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
$151.06
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Caleffi ZVR104
Zone Relay ZVR 4 Zone Switch Valve Control 40 Volt ABS
$144.67
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Caleffi ZSR101
Zone Relay ZSR Single Zone Switch 24 Volt ABS
$68.00
 / 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
$18.48
 / 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 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
$34.35
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell DC6000WF1001
Control D6 D6 Pro Wi-Fi Ductless Mini-Split Square
$153.51
 / 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.

Mars 90294
Relay 903 General Purpose Single Pole Double Throw 110/120 Volt
$9.65
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Functional Devices RIBXKF
Sensor Current
$14.46
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Caleffi ZSR106
Zone Relay ZSR 6 Zone Switch Pump Control 20 Volt ABS
$229.33
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02426089000
Relay Time Delay Motor
$27.99
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell R8239B1076/U
Multi-Purpose Relay Super Tradeline 50 Volt DPDT
$64.72
 / 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 S1-02419082028
Control Relay Heat Sequencer 24
$28.00
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell R4222D1021/U
Multi-Purpose Relay 208/240 Volt 6 Amp DPDT 1/4" Quick Connect
$21.06
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell S688A1007/B
Switch SPDT
$53.38
 / 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
$14.61
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Caleffi ZVR106
Zone Relay ZVR 6 Zone Switch Valve Control 80 Volt ABS
$187.33
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02421678700
Control Relay SPST 24V
$14.98
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02426088001
Relay Time Delay Control Board 18-30V for HVACR Equipment
$33.81
 / 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.

Source 1 S1-02419082738
Relay Heat Sequencer Time Delay
$27.55
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell R8845U1003/U
Multi-Purpose Relay 24 Volt 0.4 Amp 2 SPST Universal with Internal Transformer
$82.25
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell TAZ-4
Control Panel TotalZONE Add-A-Zone 4 Zones 24 Volt
$223.30
 / ea
Qty
Guests: In Stock. Ships In 3-7 Business Days.

Mars 90342
Relay Power-Power 903 DPDT Switching Quick Connect 240 Volt
$8.52
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Navien PFMZ-03P-001
Switching Relay SMARTZONE+ 3ZONE NCB/NHB
$120.00
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02426090001
Relay Blower/Draft Motor Time Delay F/DBUC-T 072
$25.00
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Mars 90295
Relay 903 General Purpose Single Pole Double Throw 208/240 Volt
$9.89
 / 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
$64.28
 / ea
Qty
Guests: In Stock. Ships In 3-7 Business Days.

Honeywell HPSR103/U
Relay Switching 3 Zone 120 Volt
$165.25
 / 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
$20.98
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Mars 19004
Relay 190 Potential Break Off Bracket 332 Volt
$43.91
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Mars 90292
Relay 903 General Purpose Single Pole Single Throw 208/240 Volt
$11.83
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell AQ15540B/U
Module Aquatrol Zoning Replacement for AQ25542 4 Zone Expansion
$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
$11.28
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Functional Devices MT212-12
Relay Track Mount
$4.05
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02425910700
Control Relay DPST 24V 50/60HZ
$31.08
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Steamist 250R-PC
Control Wallmount TSC-250 Round Polish Chrome
$546.00
 / 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
$14.81
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Source 1 S1-02419082039
Relay Heat Sequencer 24V for BPGM 036-060
$25.11
 / 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.

Functional Devices RIBMU1S
Control Relay SPST/NO 10-30VAC/VDC/120VAC 15A Track Mount
$16.60
 / 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.

Source 1 S1-02420878703
Relay Time Delay 24V
$49.35
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Mars 19002
Relay 190 Potential Break Off Bracket 170 Volt
$37.80
 / 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.

Honeywell R8225A1017/U
Multi-Purpose Relay 24 Volt Fan with SPDT Quick Connect
$81.69
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Johnson Controls CSD-SF0C0-1
Current Switch Device NO 0.25 to 200A
$30.16
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Honeywell HPSR104/U
Relay Switching 4 Zone 120 Volt
$206.57
 / 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.

Source 1 S1-02527747003
Rollout Switch 160 Open/Manual Close 160 DEG
$40.19
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Copeland 940-0001-59
Relay Potential 040-0001-59 420 Volt
$53.93
 / ea
Qty
Guests: In Stock. Ships in 1 Business Day.

Displaying 1-96 of 129 results

 

Back to top