Siemens 3RT1055-1AB36 Power Contactor, 150A, 75kW (400V), 23-26V AC/DC Coil, SIRIUS 3RT1 Series Original Brand New

Overview

The Siemens 3RT1055-1AB36 is a high-performance power contactor from the trusted SIRIUS 3RT1 series, designed for reliable switching of electrical loads in industrial applications. This robust 3-pole contactor is rated for AC-3e/AC-3 operation up to 150 A and is ideal for controlling motors, heaters, and other demanding equipment. Its versatile wide-range AC/DC control voltage of 23-26 V ensures flexibility and compatibility with various control systems.

Key Benefit

• High Performance & Reliability: Engineered for long-term, dependable operation in demanding industrial environments. The 150 A current rating and 75 kW power rating at 400 V make it suitable for a wide range of heavy-duty applications.
• Energy Efficient: The advanced design minimizes power consumption, reducing operational costs over the product’s lifetime.
• Flexible Control: The wide-range AC (50-60 Hz) and DC control voltage (23-26V) simplifies system design and integration.
• Enhanced Safety & Control: Equipped with two normally open (NO) and two normally closed (NC) auxiliary contacts, providing multiple options for interlocking, signaling, and control circuit feedback.
• Secure Connections: Features box terminals for the main circuit and screw terminals for the control and auxiliary circuits, ensuring secure and reliable wiring.
• Compact & Space-Saving: Despite its high power rating, the SIRIUS 3RT1 design is optimized for a compact footprint, allowing for efficient use of panel space.

Technical Specifications & Function

• Product Number: 3RT1055-1AB36
• Product Type: Power Contactor
• Series: SIRIUS 3RT1
• Rated Operational Current (Ie): 150 A (AC-3e/AC-3)
• Rated Power (kW): 75 kW at 400 V
• Poles: 3-pole
• Control Voltage (Uc): 23-26 V AC (50-60 Hz) / DC
• Auxiliary Contacts: 2 NO + 2 NC
• Drive Type: Conventional
• Main Circuit Connection: Box Terminals
• Control & Auxiliary Circuit Connection: Screw Terminals
• Application: Ideal for switching motors, resistive loads, and other inductive loads.

Application

• Industrial automation and control panels
• Motor control centers (MCCs)
• Pump and fan systems
• Heating, ventilation, and air conditioning (HVAC) systems
• Conveyor systems and material handling
• General machine building

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