Siemens 3RT2015-2MB42-0KT0 Power Contactor, 7A, 3kW, 24V DC, S00 Original Brand New

Overview

The Siemens SIRIUS 3RT2015-2MB42-0KT0 is a compact and high-performance 3-pole power contactor designed for reliable switching of motors and other resistive loads in industrial control applications. Part of the SIRIUS 3RT2 series, this size S00 contactor is engineered for efficiency and space-saving installation. It features a robust 24 V DC operating coil with an extended operating range of 0.85−1.85×Uc​, ensuring high operational reliability even with fluctuating voltages. The integration of spring-loaded terminals allows for fast, vibration-proof, and maintenance-free wiring, significantly reducing installation time and costs.

Benefit

1. High Reliability: The wide operating voltage range of the DC coil (0.85−1.85×Uc​) ensures reliable pickup and holding, even under significant voltage dips or surges.
2. Fast & Secure Wiring: Spring-loaded terminals provide quick, robust, and permanent connections without the need for periodic retightening, making it ideal for high-vibration environments.
3. Space Efficiency: As a compact Size S00 contactor, it requires minimal panel space, allowing for higher density control cabinet layouts.
4. Optimized for Motor Loads: Rated for AC-3e/AC-3 operation, it is specifically designed for switching three-phase motors up to 3 kW at 400 V.
5. Simplified Inventory: Includes an integrated 1 NC auxiliary contact, reducing the need for separate auxiliary switch blocks for basic control circuit feedback.

Application

The 3RT2015-2MB42-0KT0 is primarily used for switching:

• Three-phase asynchronous motors.
• Resistive loads (AC-1 operation up to 18 A at 400 V).
• Heating systems, lighting circuits, and general switching applications in automation and machinery.

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