Siemens 3RT2036-1NB34 Power Contactor 51 A, 22 kW, AC-3 / AC-3e, 3-Pole with Integrated Varistor Original Brand New

Overview

The Siemens 3RT2036-1NB34 is a high-performance SIRIUS power contactor designed for reliable motor switching and industrial automation applications. Engineered for superior operational durability, it supports AC-3e/AC-3 utilization categories, delivering 51 A and 22 kW at 400 V. With an integrated varistor for surge protection, 3-pole configuration, and wide-range 20–33 V AC/DC control voltage, this contactor ensures stable performance even in demanding environments.

Built in Siemens’ compact S2 size, it incorporates 2 NO + 2 NC auxiliary contacts and a removable auxiliary switch, making installation, maintenance, and system customization fast and efficient.

Benefit

• High Switching Capacity – Supports up to 22 kW at 400 V and 51 A, ideal for motor control.

• Enhanced Protection – Integrated varistor ensures effective surge and noise suppression.

• Flexible Control Voltage – Operates on 20–33 V AC/DC, suitable for diverse applications.

• Compact S2 Design – Saves panel space while maximizing performance.

• Easy Wiring – Equipped with durable screw terminals for secure connections.

• Versatile Auxiliary Contacts – Includes 2 NO + 2 NC for expanded control functions.

• Removable Auxiliary Switch – Enables easy customization and replacement without downtime.

Features / Function

• Type: Power Contactor

• Model: Siemens 3RT2036-1NB34

• Utilization Category: AC-3e / AC-3

• Rated Operational Current: 51 A

• Rated Power: 22 kW at 400 V

• Poles: 3-pole

• Control Voltage: 20–33 V AC/DC, 50/60 Hz

• Integrated Varistor: Yes (built-in surge protection)

• Auxiliary Contacts: 2 Normally Open (NO) + 2 Normally Closed (NC)

• Terminals: Screw terminal

• Size: S2

• Auxiliary Switch: Removable

• Ideal For: Motor starters, automation panels, control cabinets, industrial machinery

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