Siemens 3TH20 4-Pole Contactor Relay (3NO + 1NC)
Siemens 3TH20 4-Pole Contactor Relay (3NO+1NC)
The Siemens 3TH2031-0AP0 is a contactor relay from the 3TH20 series, featuring a 31E identification number. It operates on AC voltage with a rating of 230V AC at 50Hz (or 277V AC at 60Hz). This relay is equipped with 3 normally open (NO) and 1 normally closed (NC) contacts, utilizing screw terminals for secure connections.
This contactor relay is designed for switching control circuits and auxiliary functions in various industrial automation applications. Its reliable performance makes it suitable for motor control, lighting control, and other general-purpose switching tasks. Please note that this product is phased out, and its successor is the SIRIUS 3RH21 series.
Stanlo Automation, a veteran-owned distributor, can help you source the Siemens 3TH2031-0AP0 or its suitable replacements. We are committed to providing quality parts and exceptional service for your industrial needs.
| Type | Contactor Relay |
| Series | 3TH20 |
| Poles | 4 (3 NO + 1 NC) |
| Control Voltage | 230V AC (50Hz) / 277V AC (60Hz) |
| Terminals | Screw |
| Standard | EN 50011 |
| Manufacturer | Siemens |