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Siemens 3RT1056-6AP36 SIRIUS power contactor, 3-pole, 185A, 220-240V AC/DC coil

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Siemens 3RT1056-6AP36

by Siemens

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OverviewThe Siemens 3RT1056-6AP36 is a high-performance SIRIUS series power contactor, expertly designed for industrial motor control applications. This durable 3-pole contactor is essential for efficient and dependable switching of electric motors across various industrial settings. It capably handles substantial loads, rated for 90 kW (125 HP) in 400 V AC systems and supporting continuous operational currents up to 185 A. Its integrated 220-240 V AC/DC coil ensures seamless integration into diverse control circuits, while two normally open (NO) and two normally closed (NC) auxiliary contacts offer extensive control and signaling capabilities. With a focus on compact construction and steadfast resilience, the 3RT1056-6AP36 is an optimal solution for enhancing motor control within any contemporary industrial environment.Key Features Exceptional Power Management: Controls motors up to 90 kW (125 HP) at 400 V, making it suitable for intensive industrial machinery. High Current Endurance: Engineered to withstand operational currents up to 185 A (AC-3), ensuring steady performance under heavy and continuous loads. Adaptable Coil Voltage: Features a versatile 220-240 V AC/DC coil, offering broad compatibility with various control voltage configurations. Integrated Auxiliary Contacts: Equipped with 2 NO and 2 NC auxiliary contacts, providing enhanced functionalities for interlocking, signaling, and control logic. Space-Efficient Yet Robust: Designed with a compact profile for easy integration into control panels, without compromising its inherent robust durability. IEC Standard Compliant: Adheres strictly to IEC 60947-4-1, guaranteeing international safety and performance standards are met. Technical Specifications Product Type: SIRIUS Power Contactor Part Number: 3RT1056-6AP36 Number of Poles: 3 Motor Power Rating: 90 kW (125 HP) at 400 V Operational Current: 185 A (AC-3) Control Voltage: 220-240 V AC/DC Auxiliary Contacts: 2 NO + 2 NC Mounting Type: Base mounting with secure screw terminals Protection Rating: IP00 (Designed for enclosed installations) Standards Compliance: Conforms to IEC 60947-4-1 Applications Heavy Industrial Motor Control: Provides precise control for large-scale motors in manufacturing and processing plants, boosting operational efficiency. Advanced Pumping and Water Systems: Guarantees reliable operation for high-power pumps in water treatment, irrigation, and fluid management. HVAC and Climate Control: Optimally suited for switching compressors, large fans, and other critical components in sophisticated heating, ventilation, and air conditioning systems. Material Handling and Logistics: Offers robust motor control for vital equipment such as conveyors, hoists, and cranes in automated material handling solutions. Renewable Energy Systems: Integral for managing power flow in certain solar, wind, and other renewable energy applications requiring high current switching. Automation and Robotics: Essential for precise motor control within complex automated production lines and robotic systems, ensuring seamless operation. Why ChooseUnmatched Reliability: Siemens' renowned engineering ensures this contactor delivers consistent and dependable performance in the most challenging industrial conditions.Enhanced System Versatility: With its flexible AC/DC coil and comprehensive auxiliary contacts, this model seamlessly integrates into a wide array of control schemes and system designs.Optimal Efficiency: Designed for high-power switching with minimal energy loss, contributing to more energy-efficient operations and reduced running costs.Long-Term Durability: Constructed with premium materials and stringent manufacturing standards, guaranteeing extended service life and reduced maintenance requirements.Safety and Compliance: Full adherence to international safety and performance standards ensures peace of mind for critical applications.Order NowExperience the superior performance and reliability of the Siemens 3RT1056-6AP36 SIRIUS Power Contactor. Contact Palm Parts Solution today to place your order or request a quote for this essential industrial component.FAQWhat is the primary function of the Siemens 3RT1056-6AP36?The 3RT1056-6AP36 is designed to control and switch electric motors in industrial environments, offering high power handling capabilities and reliable operation.What is the maximum motor power rating this contactor can handle?This contactor can handle motors up to 90 kW (125 HP) at 400 V AC.Does this contactor have auxiliary contacts?Yes, it is equipped with two normally open (NO) and two normally closed (NC) auxiliary contacts for enhanced control and signaling.Is the coil voltage compatible with various control systems?Yes, its versatile 220-240 V AC/DC coil ensures broad compatibility with diverse control voltage setups.What standards does the 3RT1056-6AP36 comply with?It adheres to IEC 60947-4-1, ensuring it meets international safety and performance standards.

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PRODUCT DETAILS

Siemens 3RT1056-6AP36

Overview

This is a genuine Siemens component from the SIRIUS Contactors family. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Siemens catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Siemens automation ecosystem
  • Engineered to integrate inside SIRIUS Contactors installations

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Siemens equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Siemens catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Siemens platform with documented conversion notes for the SIRIUS Contactors family

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Product Type: SIRIUS Power Contactor
  • Part Number: 3RT1056-6AP36
  • Number of Poles: 3
  • Motor Power Rating: 90 kW (125 HP) at 400 V
  • Operational Current: 185 A (AC-3)
  • Control Voltage: 220-240 V AC/DC
  • Auxiliary Contacts: 2 NO + 2 NC
  • Mounting Type: Base mounting with secure screw terminals
  • Protection Rating: IP00 (Designed for enclosed installations)
  • Standards Compliance: Conforms to IEC 60947-4-1

Applications

  • Heavy Industrial Motor Control: Provides precise control for large-scale motors in manufacturing and processing plants, boosting operational efficiency.
  • Advanced Pumping and Water Systems: Guarantees reliable operation for high-power pumps in water treatment, irrigation, and fluid management.
  • HVAC and Climate Control: Optimally suited for switching compressors, large fans, and other critical components in sophisticated heating, ventilation, and air conditioning systems.
  • Material Handling and Logistics: Offers robust motor control for vital equipment such as conveyors, hoists, and cranes in automated material handling solutions.
  • Renewable Energy Systems: Integral for managing power flow in certain solar, wind, and other renewable energy applications requiring high current switching.
  • Automation and Robotics: Essential for precise motor control within complex automated production lines and robotic systems, ensuring seamless operation.

Why Choose the 3RT1056-6AP36?

Unmatched Reliability: Siemens' renowned engineering ensures this contactor delivers consistent and dependable performance in the most challenging industrial conditions.

Enhanced System Versatility: With its flexible AC/DC coil and comprehensive auxiliary contacts, this model seamlessly integrates into a wide array of control schemes and system designs.

Optimal Efficiency: Designed for high-power switching with minimal energy loss, contributing to more energy-efficient operations and reduced running costs.

Long-Term Durability: Constructed with premium materials and stringent manufacturing standards, guaranteeing extended service life and reduced maintenance requirements.

Safety and Compliance: Full adherence to international safety and performance standards ensures peace of mind for critical applications.

Availability & Shipping

  • In stock: 3RT1056-6AP36 ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every 3RT1056-6AP36 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Siemens

The 3RT1056-6AP36 is designed to control and switch electric motors in industrial environments, offering high power handling capabilities and reliable operation.

Machine down? We ship parts the same day.

New, surplus, and refurbished Siemens inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

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