Overview: Siemens 3RT1055-6SP36 Power Contactor with F-PLC Input
The Siemens 3RT1055-6SP36 is a high-performance 3-pole power contactor from the robust SIRIUS 3RT1 family, specifically engineered for advanced motor control and safety applications. This Size S6 contactor is rated for 150 A (AC-3e/AC-3) and 75 kW at 400 V, making it ideal for switching high-power industrial motors and resistive loads.
A standout feature is the integrated F-PLC Fail-Safe Input (24 V DC), which allows for direct connection to fail-safe PLCs, simplifying wiring and reducing the need for an external coupling level in safety-critical circuits. The electronic drive supports a wide control voltage range of 200-277 V AC (50-60 Hz) / DC for versatile global use.
Key Technical Specifications
- Product Type: Power Contactor (SIRIUS 3RT1, Size S6)
- Product Number: 3RT1055-6SP36
- Poles: 3-pole
- Rated Current (AC-3e/AC-3): 150 A
- Rated Power (AC-3): 75 kW / 400 V
- Control Voltage (Uc): 200-277 V AC (50-60 Hz) / DC (Wide Range)
- Safety Feature: Integrated F-PLC Input (24 V DC) for Fail-Safe Control
- Auxiliary Contacts: 2 NO + 2 NC
- Main Circuit Connection: Busbar
- Control/Auxiliary Circuit Connection: Screw Terminal
Benefit
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High Reliability: Engineered for heavy-duty AC-3e/AC-3 applications.
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Energy Efficient: Electronic drive reduces energy loss during switching.
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Flexible Integration: PLC input compatible, perfect for automation systems.
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Safe & Secure: Screw terminals and robust auxiliary contacts ensure safe connections.
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Versatile Applications: Suitable for motors, heaters, capacitive loads, and industrial machinery.
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