Siemens 3RT2015-2SB41 Power Contactor 7A, 3kW, 24V DC with Suppressor Diode, Spring-Loaded Terminal, S00 Frame Original Brand New

Overview

The Siemens 3RT2015-2SB41 is a high-performance power contactor designed for reliable switching of electrical loads. It’s built for AC-3e/AC-3 applications, handling a rated current of 7A and a power output of 3 kW at 400 V. This 3-pole contactor operates on a 24 V DC control voltage with a wide tolerance range (0.85−1.85∗Uc​).

A standout feature is the integrated suppressor diode, which protects the control circuit from voltage spikes, extending the lifespan of the entire system. It also includes one normally open (1 NO) auxiliary contact for feedback or interlocking functions. The spring-loaded terminals ensure a quick, secure, and vibration-resistant connection, making installation efficient. With a compact S00 frame size, this contactor is ideal for space-constrained applications.

Key Features & Benefit

• Reliable Performance: Engineered for demanding industrial environments, ensuring consistent switching and long-term durability.
• Integrated Protection: The built-in suppressor diode eliminates the need for external components, simplifying wiring and protecting sensitive electronics from overvoltage.
• Space-Saving Design: The S00 frame size allows for a high-density mounting arrangement, optimizing panel space.
• Fast & Secure Wiring: Spring-loaded terminals provide a gas-tight connection that’s resistant to vibration, reducing maintenance and preventing downtime.
• Versatile Application: Suitable for a wide range of motor and load control applications, including those requiring AC-3e/AC-3 duty.
• Enhanced Control: The 1 NO auxiliary contact provides valuable feedback for monitoring and control systems.

Function

The primary function of the Siemens 3RT2015-2SB41 contactor is to remotely switch an electrical power circuit on and off. It’s typically used to control electric motors, heating elements, lighting systems, and other high-power equipment.

The integrated suppressor diode dampens inductive voltage spikes that are generated when the coil is de-energized, protecting the control circuitry from damage. The auxiliary contact can be used for signaling a successful switch or for creating interlocks in a control scheme.

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