Siemens 3RT1054-1NB36 Power Contactor 115A, 55kW, 400V, AC-3, 24V DC, 3-Pole Original Brand New

Overview

The Siemens 3RT1054-1NB36 Power Contactor is a high-performance, electronically driven contactor designed for reliable switching of motors and industrial loads. Engineered for efficiency and durability, this 3-pole contactor ensures consistent performance in demanding automation and control applications. Its box terminal main circuit and screw terminal auxiliary circuit simplify installation while ensuring safe and stable connections.

Key Features & Function

• Model Number: 3RT1054-1NB36

• Rated Operational Current (AC-3e/AC-3): 115 A

• Rated Motor Power: 55 kW at 400 V

• Control Voltage: 21–27.3 V DC (PLC input 24 V DC)

• Poles: 3-pole main contacts

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

• Drive Type: Electronic drive

• Frequency Range: AC 50–60 Hz

• Main Circuit Connection: Box terminal

• Control & Auxiliary Connection: Screw terminal

• Mounting Type: Standard DIN rail or panel mounting

Benefit

• High Reliability: Siemens’ superior engineering ensures long service life and stable operation.
• Compact Design: Space-saving build for control cabinets and automation panels.
• Energy Efficient: Low control power consumption suitable for PLC-controlled systems.
• Easy Installation: Box and screw terminals allow secure and quick wiring.
• Versatile Application: Suitable for industrial automation, motor control, and power switching.

Application

• Industrial automation systems

• Motor starters and protection units

• HVAC and pump control panels

• Conveyor and process machinery

• Energy management and control circuits

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