Siemens SIRIUS 3RT1056-6AP36 Power Contactor, Size S6, 185A, 90 kW, 220-240V AC/DC Coil Original Brand New

Overview

The Siemens SIRIUS 3RT1056-6AP36 is a high-performance, 3-pole power contactor designed for reliable switching of electric motors and other loads up to 90 kW at 400 V (AC-3 utilization category). As part of the globally recognized SIRIUS modular system, this robust device offers a compact design and high contact reliability, making it an essential component for motor control in industrial applications.

It features a versatile, conventional AC/DC operating mechanism with a wide control voltage range of 220-240 V (UC), simplifying coil standardization. The contactor is sized S6 for heavy-duty applications and includes integrated auxiliary contacts (2 NO + 2 NC) for control circuit integration. Main circuit connection is designed for busbar, while the control and auxiliary circuits use screw terminals.

Key Benefit

• IE3/IE4-Ready: Fully compliant with the latest high-efficiency motor standards (AC-3e/AC-3), ensuring future-proof motor control.
• Versatile Coil: The conventional AC/DC operation coil (Uc: 220-240 V) provides flexibility and reduces coil inventory.
• High Power Density: Robust 185 A (AC-3e/AC-3) and 90 kW (at 400 V) rating in a compact Size S6 frame.
• Integrated Auxiliary Contacts: Comes standard with 2 Normally Open (NO) and 2 Normally Closed (NC) auxiliary contacts, streamlining wiring and design.
• Durable Design: SIRIUS components are known for their exceptional mechanical and electrical service life.

Application

The Siemens 3RT1056-6AP36 Power Contactor is perfectly suited for high-power switching applications, including:

• Switching three-phase asynchronous motors (IE3/IE4 standard)
• Controlling large heating elements or lighting systems (AC-1 loads)
• Integration into motor starters, drives, and control panels in heavy industry, machinery, and plant engineering.

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