Siemens 3RT2015-1KB41 SIRIUS Power Contactor, 7A, 3kW, 24V DC, 1NO, S00 Original Brand New

Overview: Siemens SIRIUS 3RT2015-1KB41 Power Contactor

The Siemens 3RT2015-1KB41 is a high-performance, compact 3-pole power contactor from the globally trusted SIRIUS 3RT2 series. Specifically engineered for switching motors and non-inductive loads up to 7 Amps (A) or 3 kW at 400V (AC-3/AC-3e), this device is perfectly suited for industrial control applications, particularly those driven by PLC outputs. Its Size S00 frame ensures a minimal footprint in the control cabinet.

This version features a low-power, wide-range 24 V DC control coil (0.7-1.25* Uc) with an essential integrated suppressor diode to protect sensitive control electronics like PLCs from switch-off voltage peaks. Connection is made easy and secure via robust screw terminals.

Key Benefit

• PLC Compatible: 24V DC coil with integrated suppressor diode ensures reliable and safe control directly from PLC transistor outputs.
• Space-Saving Design: Compact Size S00 footprint maximizes control cabinet efficiency.
• High Reliability: Part of the proven Siemens SIRIUS range, offering long mechanical service life (typically 30,000,000 operating cycles).
• Integrated Protection: Built-in suppressor diode eliminates the need for external surge protection, reducing installation complexity and cost.
• Versatile Switching: Suitable for both standard motor loads (AC-3/AC-3e) and non-inductive loads (AC-1 up to 18A at 40°C).

Application

The 3RT2015-1KB41 is the ideal choice for switching:

• Standard 3-phase AC motors (up to 3 kW).
• Lighting systems (resistive or inductive loads).
• Heaters and furnace elements.
• Solenoid valves and magnetic brakes in automated machinery.
• Any load requiring robust, high-speed switching controlled by low-voltage DC signals.

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