Siemens 3RT2036-3NF30 Power Contactor, 51A, 22kW, 83-155V AC/DC, S2 Original Brand New

Overview

The Siemens SIRIUS 3RT2036-3NF30 is a high-performance, 3-pole power contactor designed for switching motors up to 22 kW (at 400V) with a rated operational current of 51 A (AC-3e/AC-3). Part of the modular SIRIUS system, this contactor offers a compact design and high contact reliability, ideal for demanding industrial applications. Its universal wide-range control voltage of 83-155 V AC/DC and integrated varistor for coil protection offer maximum flexibility and reliability in control system design.

Key Features & Function

• High Performance: Capable of switching motors up to 22 kW / 400 V, making it suitable for a wide range of industrial motor control applications.
• Flexible Control: Features a wide-range AC/DC operating voltage coil (83-155 V AC/DC), reducing stock keeping and simplifying global use.
• Integrated Protection: Includes an integrated varistor to dampen surge voltages on the coil, extending the lifespan of the contactor and connected control components.
• Dual Connection Technology: Offers robust screw terminals for the main power circuit and fast, vibration-proof spring-loaded terminals (spring-type) for the control and auxiliary circuits, ensuring easy and reliable wiring.
• Auxiliary Contacts: Equipped with standard 1 Normally Open (NO) + 1 Normally Closed (NC) auxiliary contacts for signaling and interlocking within the control circuit.
• Compact Size: Space-saving Size S2 design is compatible with the SIRIUS modular system.

Benefit

1. Reduced Complexity: The SIRIUS modular system allows for seamless integration with other SIRIUS components like overload relays and circuit breakers.
2. Reliable Operation: High mechanical and electrical service life ensures long-term, maintenance-free operation.
3. Global Compliance: Approved for worldwide use (e.g., IEC and UL/CSA) and is IE3/IE4-ready, meeting international efficiency standards.
4. Fast Wiring: Spring-loaded terminals on the control circuit offer quick, tool-free, and highly reliable connections, minimizing installation time.

Technical Specifications

• Ie​: 51 A (AC-3e/AC-3, 400V)
• $P$: 22 kW (AC-3, 400V)
• Us​: 83-155 V AC/DC
• Poles: 3
• Aux: $1\text{NO}+1\text{NC}$
• Size: S2

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