Siemens SIRIUS 3RT2017-1MB41-0KT0 Power Contactor, 12A, 5.5kW, 3-Pole, 24V DC Coil, Size S00 Original Brand New

Overview

The Siemens SIRIUS 3RT2017-1MB41-0KT0 is a high-performance 3-pole power contactor designed for efficient switching of motors and other industrial loads up to 5.5 kW (at 400 V). Part of the renowned Siemens SIRIUS modular system, this device is engineered for maximum operational reliability in industrial control applications. Its compact Size S00 frame and durable screw terminals make installation and wiring straightforward.

This specific model features an efficient 24 V DC coil with an extended operating range, ensuring reliable performance in various control environments. The inclusion of one integrated normally open (1 NO) auxiliary contact provides essential feedback and interlock functionality.

Technical Specification

To aid technical buyers, the core specifications are clearly listed and structured:

• Product Type: Power Contactor / Coupling Contactor
• Manufacturer Part Number: 3RT2017-1MB41-0KT0
• Series: Siemens SIRIUS 3RT2
• Number of Poles: 3-pole
• Rated Operational Current (AC-3e/AC-3): 12 A
• Rated Operational Power (AC-3e/AC-3): 5.5 kW at 400 V
• Coil Voltage: 24 V DC
• Coil Operating Range: 0.85 – 1.85 Uc (Control Supply Voltage)
• Auxiliary Contacts: 1 NO (Normally Open)
• Connection Type: Screw Terminal
• Frame Size: S00
• Key Limitation: No additional auxiliary switches can be added.
• Maximum Contact Voltage Rating: 690V AC

Benefit

• High Reliability: The wide control voltage operating range (0.85 – 1.85 Uc) ensures reliable closing and holding, even with fluctuating DC supply voltages.
• Space-Saving Design: The compact Size S00 makes it ideal for use in control panels where space is limited.
• Durable Connections: Robust screw terminals provide a secure, long-lasting, and maintenance-friendly electrical connection.
• Direct Control Integration: The 24V DC coil is standard for modern control systems (PLCs, control circuits), allowing for easy integration.

Function and Application

The 3RT2017-1MB41-0KT0 power contactor is primarily used for switching 3-phase AC motors and resistive loads in various industrial settings.

Application:

• Motor control in machinery (pumps, fans, compressors)
• Switching of heating and lighting systems
• Main switching for smaller automation solutions
• Integration into complex control and protection circuits.

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