Siemens 3RT2037-1KB44 3-Pole DC Contactor — 65A, 24V DC Coil, PLC Output
Siemens 3RT2037-1KB44 3-pole DC power contactor with 24V DC coil.
The Siemens 3RT2037-1KB44 is a 3-pole power contactor designed for AC-3e/AC-3 applications, rated at 65A and 30kW (400V). This variant is specifically designed for DC control circuits, featuring a 24V DC coil (0.8-1.2* Uc). It includes an integrated varistor for surge suppression and offers 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts. Built in size S2 with screw terminals, it is also suitable for direct connection to PLC outputs.
This contactor is ideal for motor control and power switching in applications where a DC control voltage is required, such as in automated machinery, control panels, and integrated systems. Its suitability for PLC outputs simplifies direct integration into modern control architectures.
Stanlo Automation, a veteran-owned surplus distributor, offers the Siemens 3RT2037-1KB44. We provide reliable access to quality industrial automation parts, ensuring your projects stay on track without unnecessary delays or costs. Trust Stanlo for your surplus automation needs.
| Part Number | 3RT2037-1KB44 |
| 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 |
| Integrated Varistor | Yes |
| Terminal Type | Screw Terminal |
| Size | S2 |
| Suitability | PLC outputs |