Siemens 3RH1122-2KB40 24V DC Contactor Relay - 2 NO / 2 NC with Varistor
Siemens 3RH1122-2KB40 Contactor Relay, 2 NO + 2 NC, 24V DC, w/ Varistor.
The Siemens 3RH1122-2KB40 is a coupling contactor relay from the SIRIUS 3RH11 series, equipped with 2 normally open (NO) and 2 normally closed (NC) contacts. It operates on a 24V DC coil voltage with a 0.7 to 1.25* Us range and features a varistor for surge suppression. This size S00 relay utilizes spring-loaded terminals for connection. It is a phased-out product, with the preferred successor being the 3RH2122-2LB40.
This relay is designed for control circuits and applications where contactor coupling is needed, offering enhanced protection against voltage spikes due to the integrated varistor. It is suitable for use in various industrial automation environments, including machine building, control panel construction, and process control.
Stanlo Automation, a veteran-owned surplus distributor, specializes in providing reliable access to discontinued and hard-to-find industrial automation parts like the Siemens 3RH1122-2KB40. Sourcing from us ensures you can maintain critical equipment and minimize downtime without the high cost of new obsolete parts.
| Part Number | 3RH1122-2KB40 |
| Manufacturer | Siemens |
| Type | Coupling Contactor Relay |
| Coil Voltage | 24V DC |
| Auxiliary Contacts | 2 NO + 2 NC |
| Protection | With Varistor |
| Terminal Type | Spring-loaded |
| Size | S00 |
| Series | SIRIUS 3RH11 |