Siemens SIRIUS 3RT1054-3AM36 Power Contactor, 115A, 55kW (400V), AC/DC Coil 200-220V, S6, Spring-Loaded Aux Terminals Original Brand New

Overview: High-Performance SIRIUS 3RT10 Contactor

The Siemens SIRIUS 3RT1054-3AM36 is a robust and reliable 3-pole power contactor from the globally renowned SIRIUS modular system, designed for switching electric motors and other resistive loads. As part of the 3RT1 series, this contactor is engineered for demanding industrial environments, featuring a high operational current and power rating, combined with advanced dual-voltage AC/DC coil technology and convenient spring-loaded control terminals.

• Product Number: 3RT1054-3AM36
• Manufacturer: Siemens
• Series: SIRIUS 3RT1
• Contactor Size: S6 (High-performance frame size)
• Poles: 3-pole
• Motor Rating (AC-3e/AC-3): 115 A / 55 kW at 400 V
• Control Supply Voltage (Uc): 200-220 V AC (50-60 Hz) / DC (Wide Voltage Range)
• Auxiliary Contacts: Integrated 2 NO + 2 NC
• Main Circuit Connection: Box Terminals
• Control/Auxiliary Circuit Connection: Spring-Loaded Terminals (Fast, vibration-proof connection)
• Drive: Conventional

Benefit

• High Reliability: The SIRIUS 3RT series is known for its high contact reliability and long mechanical/electrical service life, ensuring dependable motor switching.
• Space-Saving Design: Part of the modular SIRIUS system, offering a compact footprint for its high power rating (S6 size).
• Flexible Control: The wide-range $200-220V$ AC/DC coil allows for universal application and simplifies logistics by covering both AC and DC control voltages.
• Fast, Secure Wiring: Spring-loaded terminals for the control and auxiliary circuits provide a quick, maintenance-free, and vibration-proof connection, reducing wiring time and increasing operational uptime compared to traditional screw terminals.
• Integrated Auxiliary Contacts: The built-in 2 NO and 2 NC auxiliary contacts simplify control circuit wiring and minimize the need for external accessories.

Function/Application

The Siemens 3RT1054-3AM36 Power Contactor is primarily used for switching and controlling three-phase electric motors (AC-3/AC-3e) up to $55\text{ kW}$ at $400\text{ V}$. Typical applications include:

• Starting, stopping, and controlling large pumps, fans, and compressors.
• Integration into complex motor control centers (MCCs).
• Use in load feeders for industrial automation, HVAC, and machinery control systems.
• Switching resistive loads (AC-1) up to $160\text{ A}$.

Compatibility and Accessories

As a core component of the Siemens SIRIUS modular system, the 3RT1054-3AM36 is fully compatible with a wide range of standard SIRIUS accessories, including:

• Thermal overload relays (for complete motor feeder solutions)
• Additional auxiliary switch blocks (for further signaling)
• Interlock modules for reversing combinations
• Surge suppressors

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