Overview
The Siemens 3RT2526-2BF40 is a high-performance industrial power contactor designed for reliable motor switching and control in demanding environments. Engineered under the world-renowned Siemens SIRIUS product line, this 4-pole contactor ensures optimal efficiency, long service life, and compatibility with a wide range of industrial applications. With its AC-3 category rating of 25 A and power handling capacity of 11 kW at 400 V, it offers dependable performance for motor control circuits.
Technical Features & Functions
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Type: Power contactor
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Model: Siemens 3RT2526-2BF40
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Utilization Category: AC-3
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Rated Operational Current: 25 A
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Power Rating: 11 kW at 400 V
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Coil Voltage: 110 V DC
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Poles: 4-pole
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Main Contacts: 2 NO (normally open) + 2 NC (normally closed)
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Auxiliary Contacts: 1 NO + 1 NC
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Terminal Type: Spring-loaded terminals
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Size: S0
Benefit
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Reliable Motor Control: Perfectly suited for standard applications like controlling 11kW three-phase electric motors.
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Fast, Secure Wiring: Spring-loaded terminals (also known as push-in terminals) offer quicker installation than screw terminals and maintain a consistently high contact force, even under vibration.
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DC Coil Efficiency: The 110 V DC coil ensures low holding power, contributing to energy savings and reduced heat generation in the control cabinet.
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High Flexibility: The 4-pole configuration and integrated 2NO + 2NC main contacts offer maximum flexibility for applications requiring simultaneous switching of both power and auxiliary circuits.
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System Integration: Part of the comprehensive Siemens SIRIUS portfolio, ensuring perfect compatibility with other switching and protection devices like circuit breakers and overload relays.
Application
This contactor is ideal for use in:
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Machine Tools
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Pumps and Ventilation Systems
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Conveyor Systems
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HVAC and Refrigeration Equipment
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General Industrial Automation and Control Panels
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