Siemens 3RT2036-1NB30 Power Contactor 51A, 3-Pole, 22kW / 400V, AC-3e/AC-3 Original Brand New

Overview

The Siemens 3RT2036-1NB30 SIRIUS Power Contactor is a robust, compact, 3-pole switching device designed for high-performance motor and load control in industrial applications. Part of the SIRIUS modular system, this Size S2 contactor is engineered for optimal efficiency with both IE2 and highly efficient IE3/IE4 motors. It provides a rated operational current of 51 A for AC-3/AC-3e duty up to 22 kW / 400 V. Featuring a wide-range 20-33 V AC/DC coil with an integrated varistor for surge suppression, the 3RT2036-1NB30 ensures maximum reliability and simplified wiring.

Key Benefit

• High Reliability: Rated for 51 A and 22 kW / 400 V for stable operation in industrial environments.

• Enhanced Protection: Integrated varistor safeguards against voltage surges.

• Versatile Control: 1 NO + 1 NC auxiliary contacts for flexible switching options.

• Easy Installation: Screw terminal design simplifies wiring and maintenance.

• Wide Compatibility: Suitable for AC-3e / AC-3 operations, 20-33 V AC/DC, 50/60 Hz.

Features

• Type: Power Contactor

• Poles: 3-pole

• Control Voltage: 20-33 V AC/DC

• Frequency: 50/60 Hz

• Auxiliary Contacts: 1 NO + 1 NC

• Protection Feature: Integrated varistor

• Connection Type: Screw terminal

• Size: S2

Function & Application

The Siemens 3RT2036-1NB30 functions as the primary switching element for high-power electrical loads. It is specifically designed to control three-phase AC motors.

• Motor Control: Ideal for Direct On-Line (DOL) starting and switching of motors, pumps, fans, and compressors up to 22kW.
• Resistive Load Switching: Can be used for switching non-inductive or lightly inductive loads (AC-1) up to 70 A (at 40°C).
• Integration: Perfectly complements other SIRIUS modular devices like motor protection circuit breakers (MPCBs) and overload relays for building complete motor starter solutions.

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