Switches
Relay Switches
- List Price $697.05 $445.33 / eachSKU: HN1016X3 in stockHoneywell 120 volt, triple aquastat relay, with a 3" insulation depth and 3" insertion depth, which provides pump control for hydronic heating system. L8124 aquastat relays provide high limit, low limit, and circulator control for maintaining boiler temperatures. Explore More
- Manufacturer : Honeywell
- Part Number : L8124A1015
List Price $697.05 $445.33 / each - $273.18 / eachSKU: HN1017Honeywell 120 volt, triple aquastat relay, with a 1-1/2" immersion depth, which mounts vertically on the boiler. L8124 aquastat relays provide single-zone control for hydronic heating systems. Explore More
- Manufacturer : Honeywell
- Part Number : L8124B1039
- List Price $761.65 $486.62 / eachSKU: HN1017A6 in stockHoneywell 24 volt, triple aquastat relay, with a 1-1/2" immersion depth, which mounts vertically on the boiler. L8124 aquastat relays provide single-zone control for hydronic heating systems. Explore More
- Manufacturer : Honeywell
- Part Number : L8124E1016
List Price $761.65 $486.62 / each - List Price $749.73 $465.04 / eachSKU: HN1017B3 in stockHoneywell 120 volt, triple aquastat relay, with no well, which mounts vertically on the boiler. L8124 aquastat relays provide single-zone control for hydronic heating systems. Explore More
- Manufacturer : Honeywell
- Part Number : L8124G1020
List Price $749.73 $465.04 / each - List Price $697.05 $432.36 / eachSKU: HN1017G15 in stockHoneywell 120 volt, triple aquastat relay, with a 1-1/2" immersion depth less well, which mounts horizontally on the boiler. L8124 aquastat relays provide single-zone control for hydronic heating systems. Explore More
- Manufacturer : Honeywell
- Part Number : L8124C1003
List Price $697.05 $432.36 / each - List Price $734.60 $455.67 / eachSKU: HN1017H12 in stockHoneywell 120 volt, triple aquastat relay, with no well, which mounts horizontally on the boiler. L8124 aquastat relays provide single-zone control for hydronic heating systems. Explore More
- Manufacturer : Honeywell
- Part Number : L8124L1011
List Price $734.60 $455.67 / each - List Price $518.83 $321.83 / eachSKU: HN102050+ in stockHoneywell 120 volt, line voltage electric aquastat relay with a 140-240°F temperature range. This relay is an immersion type controller that combines high limit protection with switching relay control of the burner and circulator motor. Explore More
- Manufacturer : Honeywell
- Part Number : L8148A1017
List Price $518.83 $321.83 / each - List Price $676.98 $446.14 / eachSKU: HN1020A28 in stockHoneywell 24 volt, line voltage, vertically-mounted aquastat relay with a 140-240°F temperature range and a 4-1/2" capillary with well. This controller provides high limit protection with switching relay. Explore More
- Manufacturer : Honeywell
- Part Number : L8148E1299
List Price $676.98 $446.14 / each - List Price $694.65 $430.88 / eachSKU: HN1020B50+ in stockHoneywell 120 volt, SPST high limit, vertically-mounted aquastat relay with a 180-240°F temperature range (fixed 15°F differential) and a 4-1/2" capillary with well. This aquastat features a vent damper. Explore More
- Manufacturer : Honeywell
- Part Number : L8148E1265
List Price $694.65 $430.88 / each - List Price $638.53 $370.16 / eachSKU: HN102250+ in stockHoneywell millivolt or low voltage aquastat relay with a 120-240°F temperature range that can be mounted vertically or horizontally. This relay is an immersion type controller that combines high limit protection with switching relay control of the burner and circulator motor. Explore More
- Manufacturer : Honeywell
- Part Number : L8148J1009
List Price $638.53 $370.16 / each - List Price $585.98 $418.42 / eachSKU: HN2419DShips within 1 business daysHoneywell pneumatic, seven-input load analyzer relay. The RP913A is a diaphragm logic pressure selector that chooses the highest and lowest branch pressure input from thermostats to final control elements. Explore More
- Manufacturer : Honeywell
- Part Number : RP913A1008
List Price $585.98 $418.42 / each - List Price $543.68 $404.56 / eachSKU: JC1138Ships within 1 business daysJohnson Controls booster relay that operates as a pneumatic repeater and volume amplifier. The pilot signal received is repeated at its output at a 1:1 ratio. Explore More
- Manufacturer : Johnson Controls
- Part Number : R-2080-1
List Price $543.68 $404.56 / each - List Price $780.13 $504.79 / eachSKU: JC1139Ships within 1 business daysJohnson Controls reversing relay that operates as a 1:1 pneumatic inverter, volume amplifier, and inverse sequencer. The relay changes the output of a controller from direct to reverse acting. Explore More
- Manufacturer : Johnson Controls
- Part Number : R-3030-1
List Price $780.13 $504.79 / each - List Price $294.28 $231.24 / eachSKU: PY141045 in stockSiemens (Powers) pneumatic positioning relay with mounting hardware designed to provide positive positioning of a pneumatic valve or damper actuator. This relay Explore More
- Manufacturer : Siemens
- Part Number : 147-2000
List Price $294.28 $231.24 / each - $0.00 / eachSKU: PY1591CSiemens (Powers) heavy-duty pneumatic multi-purpose relay designed to provide a variety of pneumatic control functions. This relay has 1/8" NPT air connections for air supply, output, and direct and reverse acting inputs. Explore More
- Manufacturer : Powers
- Part Number : 243-0009
- List Price $515.76 $405.26 / eachSKU: PY15921 in stockSiemens (Powers) heavy-duty pneumatic analog relay designed to obtain specialized control action within pneumatic control system. This relay has 1/8" NPT air connections for air supply, output, and direct and reverse acting inputs. Explore More
- Manufacturer : Siemens
- Part Number : 243-0011
List Price $515.76 $405.26 / each - $0.00 / eachSKU: MH1180Flow switch 120 volt, 20 second time delay relay. Direct mounting on series FS4-3, AF2 and AF3. Remote mounting on main control panel or conduit box with series FS-1, FS6, FS7-4 and FS-8W. Permits intermittent switching of controlled equipment and eliminates false signals and rapid cycling from turbulence or fluctuations. Solid state with 10" lead wires. Explore More
- Manufacturer : McDonnell & Miller
- Part Number : 112050
- List Price $206.80 $119.88 / eachSKU: HN448012 in stockHoneywell relay that provides intermediate SPST switching of a line voltage device from a low voltage controller. An integral transformer provides low voltage power for control circuit. This relay has a maximum input of 5.0 W. Explore More
- Manufacturer : Resideo
- Part Number : RA89A1074
List Price $206.80 $119.88 / each - List Price $738.73 $428.25 / eachSKU: HN1016W9 in stockHoneywell vertically mounted triple aquastat relay that features high limit protection, low limit and circulation control, a 10°F fixed high limit differential, a 10-25°F low limit differential, a 130-240°F high limit operating range, a 110-220°F low limit operating range, and a 0-95% RH operating humidity range. This relay has a 3" insertion well and 1-1/2" insulation. Explore More
- Manufacturer : Honeywell
- Part Number : L8124A1007
List Price $738.73 $428.25 / each - $0.00 / eachSKU: HN4585Honeywell 24 VAC, SPST, 30 amp compressor relay for use with DR90 and DR120 series compressors. Explore More
- Manufacturer : Honeywell
- Part Number : 50035445-014