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System of Measurement
Switching Current
Horsepower @ Switching Voltage
Wire Connection
Switching Voltage
Operation Type
Certification
Mounting Location
DFARS Specialty Metals
Export Control Classification Number (ECCN)
Relay Type
Mechanical Life Cycles
Specifications Met
Switch Action
REACH
Infrequent-Cycle Relays
2 Circuits
3 Circuits
For use with equipment that cycles on and off, these relays meet UL 508 for air conditioning and heating. Connections are accessible from the front, so you can mount relays side-by-side. Also known as definite-purpose contactors.
Also Available: Auxiliary contacts for 3.8"-7.2" Ht. relays. They allow you to add a signaling device or control another relay. Please select 6564K99, then select the McMaster-Carr part number of your relay and whether you want to switch one circuit on (1 Normally Open) or off (1 Normally Closed).
Switching Current @ 600V AC | hp @ Switching Voltage | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of Terminals | Input Voltage | Control Power | Full Load  | Resistive Load | Single Phase | Three Phase | Ht. | Wd. | Dp. | Quick-Disconnect Tab Wd. | Each | |
2 Circuits Controlled with 2 Off (Normally Open)—DPST-NO | ||||||||||||
With Quick-Disconnect and Screw Terminals | ||||||||||||
| 4 | 24V AC | 19VA | 90A | 120A | 7 1/2 hp @ 115 V AC 20 hp @ 230 V AC | 30 hp @ 230 V AC 50 hp @ 460 V AC 50 hp @ 575 V AC | 5" | 3.7" | 4.4" | 0.25" | 00000000 | 0000000 |
| 4 | 120V AC | 19VA | 90A | 120A | 7 1/2 hp @ 115 V AC 20 hp @ 230 V AC | 30 hp @ 230 V AC 50 hp @ 460 V AC 50 hp @ 575 V AC | 5" | 3.7" | 4.4" | 0.25" | 00000000 | 000000 |
| 4 | 208V AC, 240V AC | 19VA | 90A | 120A | 7 1/2 hp @ 115 V AC 20 hp @ 230 V AC | 30 hp @ 230 V AC 50 hp @ 460 V AC 50 hp @ 575 V AC | 5" | 3.7" | 4.4" | 0.25" | 00000000 | 000000 |
3 Circuits Controlled with 3 Off (Normally Open)—3PST-NO | ||||||||||||
With Screw Terminals | ||||||||||||
| 6 | 24V AC | 49.8VA | 120A | 140A | __ | __ | 7.2" | 4.1" | 5.9" | __ | 00000000 | 00000000 |
| 6 | 120V AC | 49.8VA | 120A | 140A | __ | __ | 7.2" | 4.1" | 5.9" | __ | 00000000 | 00000000 |
| 6 | 208V AC, 240V AC | 49.8VA | 120A | 140A | __ | __ | 7.2" | 4.1" | 5.9" | __ | 00000000 | 00000000 |
With Quick-Disconnect and Screw Terminals | ||||||||||||
| 6 | 24V AC | 19VA | 90A | 120A | 7 1/2 hp @ 115 V AC 20 hp @ 230 V AC | 30 hp @ 230 V AC 50 hp @ 460 V AC 50 hp @ 575 V AC | 5" | 3.7" | 4.4" | 0.25" | 00000000 | 000000 |
| 6 | 120V AC | 19VA | 90A | 120A | 7 1/2 hp @ 115 V AC 20 hp @ 230 V AC | 30 hp @ 230 V AC 50 hp @ 460 V AC 50 hp @ 575 V AC | 5" | 3.7" | 4.4" | 0.25" | 00000000 | 000000 |
| 6 | 208V AC, 240V AC | 19VA | 90A | 120A | 7 1/2 hp @ 115 V AC 20 hp @ 230 V AC | 30 hp @ 230 V AC 50 hp @ 460 V AC 50 hp @ 575 V AC | 5" | 3.7" | 4.4" | 0.25" | 00000000 | 000000 |