Siemens 3RH1131-1JB40 24V DC Contactor Relay - 3 NO / 1 NC with Diode
Siemens 3RH1131-1JB40 Contactor Relay, 3 NO + 1 NC, 24V DC, w/ Diode.
The Siemens 3RH1131-1JB40 is a contactor relay from the SIRIUS 3RH11 series, equipped with 3 normally open (NO) and 1 normally closed (NC) auxiliary contacts. It operates on a 24V DC coil voltage, with a 0.7 to 1.25* Us control voltage range, and includes a built-in diode for coil suppression. This size S00 relay uses screw terminals. It is a phased-out product, with the preferred successor being the 3RH2131-1JB40.
This relay is designed for DC control circuits where fast switching and coil suppression are necessary, commonly found in industrial automation, motor control, and control panels. The integrated diode protects connected electronics from back EMF generated when the coil is de-energized.
Stanlo Automation, a veteran-owned surplus parts distributor, provides access to critical obsolete automation components like the Siemens 3RH1131-1JB40. We offer a reliable and cost-effective way to maintain your existing equipment, preventing costly downtime.
| Part Number | 3RH1131-1JB40 |
| Manufacturer | Siemens |
| Type | Contactor Relay |
| Coil Voltage | 24V DC |
| Auxiliary Contacts | 3 NO + 1 NC |
| Protection | With Diode |
| Terminal Type | Screw terminal |
| Size | S00 |
| Series | SIRIUS 3RH11 |