Siemens 3RT2037-1KB44-3MA0 3-Pole DC Contactor — 65A, 24V DC Coil
Siemens 3RT2037-1KB44-3MA0 3-pole DC power contactor with 24V DC coil and captive switch.
The Siemens 3RT2037-1KB44-3MA0 is a 3-pole power contactor rated for AC-3e/AC-3 duty (65A, 30kW at 400V). It features a 24V DC coil with an operating range of 0.8-1.2* Uc and includes an integrated varistor for surge suppression. This model is equipped with 2 NO and 2 NC auxiliary contacts, a captive auxiliary switch, and is built in size S2 with screw terminals. It is also suitable for PLC outputs.
This contactor is designed for reliable motor control and power switching in industrial automation, particularly where DC control voltages are utilized. The captive auxiliary switch ensures consistent operation and simplifies wiring, making it valuable for control panel builders and machine integrators.
Stanlo Automation, a veteran-owned surplus distributor, offers the Siemens 3RT2037-1KB44-3MA0. We are dedicated to providing high-quality, cost-effective surplus industrial automation parts to keep your operations running efficiently. Source your essential components from Stanlo.
| Part Number | 3RT2037-1KB44-3MA0 |
| Manufacturer | Siemens |
| Type | Power Contactor |
| Utilization Category | AC-3e/AC-3 |
| Rated Operational Current (AC-3e, 400V) | 65 A |
| Rated Operational Power (AC-3e, 400V) | 30 kW |
| Poles | 3 |
| Coil Voltage | 24 V DC (0.8-1.2* Uc) |
| Auxiliary Contacts | 2 NO + 2 NC |
| Captive Auxiliary Switch | Yes |
| Integrated Varistor | Yes |
| Terminal Type | Screw Terminal |
| Size | S2 |
| Suitability | PLC outputs |