CSA 204075 Relays | McMaster-Carr

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32 Products

DIN-Rail Mount Solid State Relays

Relay with Integrated Heat Sink

Unlike mechanical relays, these solid state relays have no moving parts, so they require less maintenance and last longer, switch faster, and are quieter. They mount on 35 mm DIN rail (also known as DIN 3) for fast installation. An LED indicator lights up when these relays are connected, so you can quickly confirm that they’re wired correctly. IP20 rated, their terminals are recessed, so they prevent fingers and other objects from touching live circuits.

Relays with an integrated heat sink disperse heat to increase the relay’s current rating.

1 Circuit Controlled with 1 Off (Normally Open)—SPST-NO
Number of Terminals	Input Voltage	Control Current, mA	Switching Current @ Voltage (Load Type)	Max. Switching Voltage	Ht.	Wd.	Dp.	Features		Each
Single Phase
4	24V AC, 90V AC, 120V AC, 240V AC, 24V DC, 48V DC, 60V DC, 120V DC, 275V AC	12	5 A @ 24 V AC (Full Load) 10 A @ 24 V AC (Resistive Load) 10 A @ 240 V AC	240V AC	4.173"	0.7"	2.56"	Integrated Heat Sink, LED Indicator	8299K34	000000

Solid State Screw Terminal Relays

1-Circuit Relay with Covered Terminals

2-Circuit Relay

Heat Sink

With no moving parts, these solid-state relays are fast switching and require less maintenance, last longer, and are quieter than mechanical switches.

Relays with high-starting-current protection are designed with integrated circuits that prevent damage from the large burst of electricity when a device, such as a motor or pump, turns on.

Relays with LED indicator let you quickly spot whether a relay is on or off.

Heat sinks disperse heat to increase the relay’s current rating. Mount them to 35 mm DIN rail (also known as DIN 3 rail) for fast installation. They also mount to flat surfaces. Before mounting one-circuit relays, silicone compound or a thermal pad should be placed between the heat sink and relay. Silicone compound is sold separately for heat sinks that do not include it but require it. Two-circuit relays don’t require silicone for mounting.

Relays
		Switching Current										Heat Sinks
Number of Terminals	Input Voltage	Without Heat Sink	With Heat Sink	Switching Voltage	Max. Switching Voltage	Ht.	Wd.	Dp.	Environmental Rating		Each		Each
1 Circuit Controlled with 1 Off (Normally Open)—SPST-NO
Relays with High-Starting-Current Protection and Covered Terminals
4	24V AC, 48V AC, 120V AC, 240V AC, 24V DC, 48V DC	2.5A	25A	240V AC	265V AC	2.3"	1.8"	1.1"	IP20	7456K62	000000	7456K221	000000
4	24V AC, 48V AC, 120V AC, 240V AC, 24V DC, 48V DC	2.5A	25A	480V AC	530V AC	2.3"	1.8"	1.1"	IP20	7456K106	00000	7456K33	00000
4	24V AC, 48V AC, 120V AC, 240V AC, 24V DC, 48V DC	2.5A	25A	600V AC	660V AC	2.3"	1.8"	1.1"	IP20	7456K115	000000	7456K33	00000
4	24V AC, 48V AC, 120V AC, 240V AC, 24V DC, 48V DC	5A	50A	240V AC	265V AC	2.3"	1.8"	1.1"	IP20	7456K64	00000	7456K33	00000
4	24V AC, 48V AC, 120V AC, 240V AC, 24V DC, 48V DC	5A	50A	480V AC	530V AC	2.3"	1.8"	1.1"	IP20	7456K108	00000	7456K33	00000
4	24V AC, 48V AC, 120V AC, 240V AC, 24V DC, 48V DC	5A	50A	600V AC	660V AC	2.3"	1.8"	1.1"	IP20	7456K117	000000	7456K33	00000
4	24V AC, 48V AC, 120V AC, 240V AC, 24V DC, 48V DC	7.5A	75A	240V AC	265V AC	2.3"	1.8"	1.1"	IP20	7456K102	000000	7456K33	00000
4	24V AC, 48V AC, 120V AC, 240V AC, 24V DC, 48V DC	7.5A	75A	480V AC	530V AC	2.3"	1.8"	1.1"	IP20	7456K111	000000	7456K33	00000
4	24V AC, 48V AC, 120V AC, 240V AC, 24V DC, 48V DC	7.5A	75A	600V AC	660V AC	2.3"	1.8"	1.1"	IP20	7456K119	000000	7456K33	00000
4	24V AC, 48V AC, 120V AC, 240V AC, 24V DC, 48V DC	10A	100A	240V AC	265V AC	2.3"	1.8"	1.1"	IP20	7456K104	000000	7456K33	00000
4	24V AC, 48V AC, 120V AC, 240V AC, 24V DC, 48V DC	10A	100A	480V AC	530V AC	2.3"	1.8"	1.1"	IP20	7456K113	000000	7456K33	00000
4	24V AC, 48V AC, 120V AC, 240V AC, 24V DC, 48V DC	10A	100A	600V AC	660V AC	2.3"	1.8"	1.1"	IP20	7456K122	000000	7456K33	00000
4	3V DC, 6V DC, 12V DC, 24V DC, 30V DC	2.5A	25A	240V AC	265V AC	2.3"	1.8"	1.1"	IP20	7456K61	00000	7456K221	00000
4	3V DC, 6V DC, 12V DC, 24V DC, 30V DC	5A	50A	240V AC	265V AC	2.3"	1.8"	1.1"	IP20	7456K63	00000	7456K33	00000
4	3V DC, 6V DC, 12V DC, 24V DC, 30V DC	7.5A	75A	240V AC	265V AC	2.3"	1.8"	1.1"	IP20	7456K101	000000	7456K33	00000
4	3V DC, 6V DC, 12V DC, 24V DC, 30V DC	10A	100A	240V AC	265V AC	2.3"	1.8"	1.1"	IP20	7456K103	000000	7456K33	00000
4	4V DC, 6V DC, 12V DC, 24V DC, 30V DC	2.5A	25A	480V AC	530V AC	2.3"	1.8"	1.1"	IP20	7456K105	00000	7456K33	00000
4	4V DC, 6V DC, 12V DC, 24V DC, 30V DC	2.5A	25A	600V AC	660V AC	2.3"	1.8"	1.1"	IP20	7456K114	00000	7456K33	00000
4	4V DC, 6V DC, 12V DC, 24V DC, 30V DC	5A	50A	480V AC	530V AC	2.3"	1.8"	1.1"	IP20	7456K107	00000	7456K33	00000
4	4V DC, 6V DC, 12V DC, 24V DC, 30V DC	5A	50A	600V AC	660V AC	2.3"	1.8"	1.1"	IP20	7456K116	000000	7456K33	00000
4	4V DC, 6V DC, 12V DC, 24V DC, 30V DC	7.5A	75A	480V AC	530V AC	2.3"	1.8"	1.1"	IP20	7456K109	000000	7456K33	00000
4	4V DC, 6V DC, 12V DC, 24V DC, 30V DC	7.5A	75A	600V AC	660V AC	2.3"	1.8"	1.1"	IP20	7456K118	000000	7456K33	00000
4	4V DC, 6V DC, 12V DC, 24V DC, 30V DC	10A	100A	480V AC	530V AC	2.3"	1.8"	1.1"	IP20	7456K112	000000	7456K33	00000
4	4V DC, 6V DC, 12V DC, 24V DC, 30V DC	10A	100A	600V AC	660V AC	2.3"	1.8"	1.1"	IP20	7456K121	000000	7456K33	00000
2 Circuit Controlled with 2 Off (Normally Open)—DPST-NO
Relays with High-Starting-Current Protection and Covered Terminals and LED Indicator
6	4V DC, 6V DC, 12V DC, 24V DC, 30V DC	5A	50A	600V AC	660V AC	2.3"	1.8"	1.3"	IP20	7456K87	000000	7456K89	000000
6	4V DC, 6V DC, 12V DC, 24V DC, 30V DC	7.5A	75A	600V AC	660V AC	2.3"	1.8"	1.3"	IP20	7456K88	000000	7456K91	000000
2 Circuit Controlled with 2 Off (Normally Open)—SPST-NO
Relays with High-Starting-Current Protection and Covered Terminals and LED Indicator
8	4V DC, 6V DC, 12V DC, 24V DC, 30V DC	5A	50A	600V AC	660V AC	2.3"	1.8"	1.3"	IP20	7456K85	000000	7456K89	000000