🔹 Siemens SIRIUS 3RT2 Power Contactor – 3RT2037-1AP00 (AC-3 Duty, 3-Pole, 230V AC Coil, S2 Size, ~65A Class, 1NO + 1NC Auxiliary)
The Siemens 3RT2037-1AP00 is a heavy-duty SIRIUS 3RT2 series power contactor designed for reliable switching of motors and industrial loads under AC-3 / AC-3e duty applications. It belongs to the S2 frame size category, offering strong current handling capacity and robust construction suitable for industrial control panels and power distribution systems.
This model features a 3-pole configuration with durable screw-type terminals, ensuring secure wiring connections and long-term stability in demanding electrical environments.
It is equipped with a 230V AC coil (AP00 variant), making it suitable for standard industrial control circuits used in motor starters, automation systems, and switching applications.
A key feature of this variant is its integrated auxiliary contact configuration (1NO + 1NC), providing reliable feedback, interlocking, and control signal integration for safe system operation.
Built on the Siemens SIRIUS modular platform, it allows seamless integration with overload relays and accessory modules, enabling flexible and scalable panel design.
This exact model belongs to the S2 (65A class / ~30 kW at 400V AC-3) range, commonly used in medium-heavy motor control applications where high reliability and long electrical life are required.
• Genuine Siemens SIRIUS 3RT2 Series Contactor
• Model: 3RT2037-1AP00
• 3-Pole heavy-duty switching design
• AC-3 / AC-3e duty optimized for motor control applications
• 230V AC coil (AP00 variant)
• S2 frame size (~65A class)
• Screw terminal connection for secure wiring
• Integrated auxiliary contacts (1NO + 1NC)
• High electrical and mechanical endurance
• Compatible with Siemens overload relays & accessories
• Suitable for industrial automation systems
• Modular design for flexible panel integration
| Parameter | Specification |
|---|---|
| Product Series | Siemens SIRIUS 3RT2 |
| Model Number | 3RT2037-1AP00 |
| Product Type | Power Contactor |
| Frame Size | S2 |
| Poles | 3 Pole |
| Utilization Category | AC-3 / AC-3e |
| Rated Current | ~65 A |
| Power Rating | ~30 kW @ 400V |
| Coil Voltage | 230V AC (AP00) |
| Auxiliary Contacts | 1NO + 1NC |
| Terminal Type | Screw Terminals |
| Mounting Type | Panel / DIN Rail (via accessories) |
| Brand | Siemens |
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