Thos. Somerville Co. | Hydronic Switching Relays

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Hydronic Switching Relays

17 items

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: Stocked Items Only
: Resideo (4)
Taco® (7)
Uponor (2)
Weil-McLain® (4)
: 15 A (1)
0.4 A (1)
20 A (4)
7.2 A (3)
: 24 VAC (4)
24 V (2)
120 VAC (4)
: 2 Form C DPDT (4)
DPST (2)
SPST (1)
: 7.4 A at 120 VAC/3.7 A at 240 VAC/3 A at 120 VAC (AFL)/44.4 A at 120 VAC/22.2 A at 240 VAC (ALR)/10 A at 120 VAC/6 A at 240 VAC (Resistive) (1)
10.2 A at 120 VAC/5.1 A at 240 VAC (AFL)/61.2 A at 120 VAC/30.6 A at 240 VAC (ALR)/10 A at 120 VAC/6 A at 240 VAC Resistive (1)
7.4 A at 120 VAC/3.7 A at 240 VAC/3 A at 120 VAC/2 A at 240 VAC Secondary (AFL)/44.4 A at 120 VAC/22.2 A at 240 VAC/18 A at 120 VAC/12 A at 240 VAC Secondary (ALR)/10 A at 120 VAC/6 A at 240 VAC (Resistive) (1)
: 6-5/8 in H x 4-7/8 in W x 2-3/8 in D (1)
7 in H x 10-1/4 in W x 2-3/4 in D (3)
8 in H x 12-1/4 in W x 3 in D (1)
: Import (2)
Domestic (6)
: 60 Hz (7)
50/60 Hz (3)
: Screw Hole (6)
Surface (1)
: 10 VA (2)
1/3 hp (6)
5 W (3)
: SR (6)
: 240 deg F (6)
32 to 122 deg F (2)
105 to 115 deg F (3)
-20 to 120 deg F (1)
: 1 Zone with Priority (1)
3 Zone with Priority (1)
4 Zone with Priority (2)
6 Zone with Priority (1)
: 120 VAC (7)
120 V (5)

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Resideo R845A1030/U Switching Relay, 120VAC, DPST, 24 VAC Coil

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Resideo R845A1030/U Switching Relay, 120VAC, DPST, 24 VAC Coil

Part #425038

MFG #R845A1030/U

U/M

Resideo R8845U1003/U Universal Switching Relay, 120VAC, 0.4 A, 24 VAC Coil

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Resideo R8845U1003/U Universal Switching Relay, 120VAC, 0.4 A, 24 VAC Coil

Part #425040

MFG #R8845U1003/U

U/M

Resideo RA832A1066/U Switching Relay, 120VAC, DPST, 24 VAC Coil

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Resideo RA832A1066/U Switching Relay, 120VAC, DPST, 24 VAC Coil

Part #425067

MFG #RA832A1066/U

U/M

Resideo RA89A1074/U Switching Relay, 120VAC, SPST, 24 VAC Coil

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Resideo RA89A1074/U Switching Relay, 120VAC, SPST, 24 VAC Coil

Part #425052

MFG #RA89A1074/U

U/M

Taco® SR501-4 1-Zone Switch Relay w/ Priority, 120V, 7.2 A, DPDT Contact, 120VAC V Coil

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Taco® SR501-4 1-Zone Switch Relay w/ Priority, 120V, 7.2 A, DPDT Contact, 120VAC V Coil

Part #427739

MFG #SR501-5

Taco® SR503-4 3-Zone Switch Relay w/ Priority, 120V, 15 A, DPDT Contact, 120VAC V Coil

Superseded

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Taco® SR503-4 3-Zone Switch Relay w/ Priority, 120V, 15 A, DPDT Contact, 120VAC V Coil

Part #427736

MFG #SR503-4

Taco® SR503-EXP-4 SR Expandable Switching Relay, 120VAC, 20 A, DPDT Contact, 120VAC V Coil

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Taco® SR503-EXP-4 SR Expandable Switching Relay, 120VAC, 20 A, DPDT Contact, 120VAC V Coil

Part #555227

MFG #SR503-EXP-4

Taco® SR504-4 4-Zone Switch Relay w/ Priority, 120V, 20 A, DPDT Contact, 24 V Coil

Superseded

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Taco® SR504-4 4-Zone Switch Relay w/ Priority, 120V, 20 A, DPDT Contact, 24 V Coil

Part #427737

MFG #SR504-4

Taco® SR504-5 4-Zone Next Generation Switch Relay w/ Priority

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Taco® SR504-5 4-Zone Next Generation Switch Relay w/ Priority

Part #1273755

MFG #SR504-5

Taco® SR504-EXP-4 SR 4 Zone with Priority Switching Relay, 120V, 20 A

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Taco® SR504-EXP-4 SR 4 Zone with Priority Switching Relay, 120V, 20 A

Part #1214725

MFG #SR504-EXP-4

Resideo R845A1030/U Switching Relay, 120VAC, DPST, 24 VAC Coil

Compare

Resideo R845A1030/U Switching Relay, 120VAC, DPST, 24 VAC Coil

Part #425038

MFG #R845A1030/U

U/M

Resideo R8845U1003/U Universal Switching Relay, 120VAC, 0.4 A, 24 VAC Coil

Compare

Resideo R8845U1003/U Universal Switching Relay, 120VAC, 0.4 A, 24 VAC Coil

Part #425040

MFG #R8845U1003/U

U/M

Resideo RA832A1066/U Switching Relay, 120VAC, DPST, 24 VAC Coil

Compare

Resideo RA832A1066/U Switching Relay, 120VAC, DPST, 24 VAC Coil

Part #425067

MFG #RA832A1066/U

U/M

Resideo RA89A1074/U Switching Relay, 120VAC, SPST, 24 VAC Coil

Compare

Resideo RA89A1074/U Switching Relay, 120VAC, SPST, 24 VAC Coil

Part #425052

MFG #RA89A1074/U

U/M

Taco® SR501-4 1-Zone Switch Relay w/ Priority, 120V, 7.2 A, DPDT Contact, 120VAC V Coil

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Taco® SR501-4 1-Zone Switch Relay w/ Priority, 120V, 7.2 A, DPDT Contact, 120VAC V Coil

Part #427739

MFG #SR501-5

Taco® SR503-4 3-Zone Switch Relay w/ Priority, 120V, 15 A, DPDT Contact, 120VAC V Coil

Superseded

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Taco® SR503-4 3-Zone Switch Relay w/ Priority, 120V, 15 A, DPDT Contact, 120VAC V Coil

Part #427736

MFG #SR503-4

Taco® SR503-EXP-4 SR Expandable Switching Relay, 120VAC, 20 A, DPDT Contact, 120VAC V Coil

Compare

Taco® SR503-EXP-4 SR Expandable Switching Relay, 120VAC, 20 A, DPDT Contact, 120VAC V Coil

Part #555227

MFG #SR503-EXP-4

Taco® SR504-4 4-Zone Switch Relay w/ Priority, 120V, 20 A, DPDT Contact, 24 V Coil

Superseded

Compare

Taco® SR504-4 4-Zone Switch Relay w/ Priority, 120V, 20 A, DPDT Contact, 24 V Coil

Part #427737

MFG #SR504-4

Taco® SR504-5 4-Zone Next Generation Switch Relay w/ Priority

Compare

Taco® SR504-5 4-Zone Next Generation Switch Relay w/ Priority

Part #1273755

MFG #SR504-5

Taco® SR504-EXP-4 SR 4 Zone with Priority Switching Relay, 120V, 20 A

Compare

Taco® SR504-EXP-4 SR 4 Zone with Priority Switching Relay, 120V, 20 A

Part #1214725

MFG #SR504-EXP-4

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