3RT2037-1NE34

Description

Overview

The Siemens 3RT2037-1NE34 is a high-performance 3-pole power contactor from the SIRIUS 3RT2 series, optimized for switching motors up to 30 kW at 400 V (AC-3e/AC-3). This robust, climate-proof contactor is a key component in low-voltage industrial control and switching applications. Its compact Size S2 design and versatile 48-80 V AC/DC (UC) control voltage with an integrated varistor simplify wiring and offer excellent surge protection for enhanced reliability.

Benefit

• High Reliability: Integrated varistor provides effective surge suppression, protecting the coil and ensuring longer product life.
• Global Standard Compliance: Suitable for worldwide use, being climate-proof and approved according to major standards (e.g., IEC, UL/CSA).
• Flexible Control: The wide-range UC (Universal Current) coil accepts both 48V AC, 60V AC, 80V AC, and 48V DC to 80V DC, reducing inventory and simplifying engineering.
• Ease of Maintenance: Features a removable 2 NO + 2 NC auxiliary switch block for quick installation and replacement.
• Space-Saving Design: Its compact Size S2 footprint allows for efficient panel design and installation.

Function and Application

The 3RT2037-1NE34 is primarily used for switching electric motors and general resistive loads. It is perfectly integrated into the modular SIRIUS system, allowing for seamless combination with thermal overload relays (e.g., SIRIUS 3RU2) and other switching devices to create complete, factory-tested load feeders for:

• Standard three-phase motors.
• Pumps, fans, and conveyor systems.
• Machine and plant construction.
• Heating and lighting circuits.

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