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Siemens 3RT1055-6AF36 | Heavy-Duty 250A Power Contactor for Industrial Motor Applications
Overview
The Siemens 3RT1055-6AF36 is a SIRIUS heavy-duty power contactor designed for switching AC-3 loads up to 250A at 400V, typically motors up to 132 kW (AC-3). This model features a 110V AC control coil, 3 normally open main contacts, and spring-loaded terminals for fast and vibration-resistant wiring. The Size S12 frame makes it suitable for demanding industrial motor control centers and power distribution systems.
Key Features
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Rated Operational Current (AC-3): 250 A at 400V
-
Power Rating: Up to 132 kW (AC-3 at 400V)
-
Control Voltage: 110V AC, 50/60 Hz
-
Main Contacts: 3 NO (normally open)
-
Auxiliary Contacts: Optional (not included in this model)
-
Terminals: Spring-type connections for secure and tool-free wiring
-
Contactor Size: S12
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Mounting: Panel mounting
-
Protection Rating: IP00 (requires enclosure)
-
Conforms to Standards: IEC 60947-4-1, EN 60947-4-1
Technical Specifications
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Catalog Number: 3RT1055-6AF36
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Series: SIRIUS 3RT1
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Utilization Category: AC-3 / AC-1
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Mechanical Life: >10 million operations
-
Electrical Life: >1 million operations (AC-3)
-
Ambient Temperature: -25°C to +60°C
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Dimensions (HxWxD): Approx. 330 × 180 × 200 mm
-
Certifications: CE, UL, CSA, EAC
Applications
-
High-power motor switching (up to 132 kW)
-
Industrial motor control centers (MCCs)
-
HVAC and pumping systems
-
Conveyors, compressors, and fans
-
Power distribution panels in automation
Why Choose the 3RT1055-6AF36?
-
High Current Rating: Ideal for powerful industrial motors
-
Secure Wiring: Spring-type terminals for maintenance-free connections
-
Global Compliance: CE and UL certified
-
Durable and Reliable: Built for heavy-duty continuous operation
-
Modular Integration: Compatible with SIRIUS accessories and overload relays
Order Now
The Siemens 3RT1055-6AF36 contactor is in stock and available for international shipping.
Description
Siemens 3RT1055-6AF36 | Heavy-Duty 250A Power Contactor for Industrial Motor Applications
Overview
The Siemens 3RT1055-6AF36 is a SIRIUS heavy-duty power contactor designed for switching AC-3 loads up to 250A at 400V, typically motors up to 132 kW (AC-3). This model features a 110V AC control coil, 3 normally open main contacts, and spring-loaded terminals for fast and vibration-resistant wiring. The Size S12 frame makes it suitable for demanding industrial motor control centers and power distribution systems.
Key Features
-
Rated Operational Current (AC-3): 250 A at 400V
-
Power Rating: Up to 132 kW (AC-3 at 400V)
-
Control Voltage: 110V AC, 50/60 Hz
-
Main Contacts: 3 NO (normally open)
-
Auxiliary Contacts: Optional (not included in this model)
-
Terminals: Spring-type connections for secure and tool-free wiring
-
Contactor Size: S12
-
Mounting: Panel mounting
-
Protection Rating: IP00 (requires enclosure)
-
Conforms to Standards: IEC 60947-4-1, EN 60947-4-1
Technical Specifications
-
Catalog Number: 3RT1055-6AF36
-
Series: SIRIUS 3RT1
-
Utilization Category: AC-3 / AC-1
-
Mechanical Life: >10 million operations
-
Electrical Life: >1 million operations (AC-3)
-
Ambient Temperature: -25°C to +60°C
-
Dimensions (HxWxD): Approx. 330 × 180 × 200 mm
-
Certifications: CE, UL, CSA, EAC
Applications
-
High-power motor switching (up to 132 kW)
-
Industrial motor control centers (MCCs)
-
HVAC and pumping systems
-
Conveyors, compressors, and fans
-
Power distribution panels in automation
Why Choose the 3RT1055-6AF36?
-
High Current Rating: Ideal for powerful industrial motors
-
Secure Wiring: Spring-type terminals for maintenance-free connections
-
Global Compliance: CE and UL certified
-
Durable and Reliable: Built for heavy-duty continuous operation
-
Modular Integration: Compatible with SIRIUS accessories and overload relays
Order Now
The Siemens 3RT1055-6AF36 contactor is in stock and available for international shipping.