Siemens 3MT8040-1AL23 AC-3 Power Contactor 40A, 18.5kW, 400V Original Brand New

Siemens 3MT8040-1AL23 AC-3 Power Contactor – High-Performance 40A, 18.5kW Control

Overview

Siemens 3MT8040-1AL23 Contactor is a robust and highly efficient 3-pole electrical contactor, specifically designed for reliable power control in various industrial applications. Categorized under AC-3 utilization, this contactor is ideally suited for switching squirrel-cage motors with power ratings up to 18.5 kW at 400V. With a strong 40A current handling capacity, the Siemens 3MT8040-1AL23 Contactor provides a dependable solution for motor control, heating, and general power switching tasks, all within a compact Size S2 frame.

Function

The primary role of the Siemens 3MT8040-1AL23 Contactor is to act as an electrically operated switch, enabling the safe and efficient connection or disconnection of electrical power to three-phase loads, typically industrial motors. Activated by a versatile 230VAC, 50/60Hz control coil, the contactor’s main poles close, allowing current to flow. The integrated 1 Normally Open (1NO) and 1 Normally Closed (1NC) auxiliary contacts provide essential flexibility for control circuits, interlocks, and status indication, enhancing both operational safety and automation capabilities. Reliable screw terminals ensure secure and straightforward wiring connections.

Key Features:

• Strong Current & Power Rating: Designed for AC-3 operation, handling up to 40 Amps or 18.5 kW at 400 Volts.
• Robust 3-Pole Design: Ensures stable and reliable switching for three-phase power systems.
• Versatile Auxiliary Contacts: Includes 1 Normally Open (1NO) and 1 Normally Closed (1NC) contact for diverse control and feedback requirements.
• Flexible Control Voltage: Operates with a 230V AC, 50/60Hz control coil, suitable for global industrial control systems.
• Compact S2 Size: Optimizes panel space while delivering significant power capacity.
• Secure Connection: Equipped with sturdy screw terminals for reliable and easy wiring.
• Durable Performance: Built to Siemens’ rigorous engineering standards, ensuring long-term reliability and performance in demanding industrial environments.
• Broad Application: Ideal for starting and stopping motors, controlling resistive loads, and general power circuit management in a variety of industries.

Technical Specifications:

• Product Model: Siemens 3MT8040-1AL23
• Utilization Category: AC-3
• Rated Operational Current (Ie): 40 A (at 400V)
• Rated Operational Power (Pe): 18.5 kW (at 400V)
• Rated Operational Voltage: 400 V
• Control Supply Voltage: 230 V AC, 50/60 Hz
• Number of Poles: 3-pole
• Auxiliary Contacts: 1 NO + 1 NC
• Size: S2
• Terminal Type: Screw Terminal

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