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3RT505 AC/DC Contactor

3RT505 AC/DC Contactor

Manufacturer: Siemens
Module: 3RT507 AC/DC Contactor
Power ratings: 54[55kW] 55[75kW] 56[90kW]
Rated operating current: 115A
Rated control voltage: 23-26V 42-48V 110-127V 200-220V 220-240V 440-480V 240-277V 380-420V
CAuxiliary contacts: 2NO2NC

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Product Description

This is a heavy-duty 3-pole contactor from the SIRIUS series, designed for reliable motor control in industrial environments. Suitable for AC-3 applications up to 110 kW (400 V), it combines robust construction with compact design and easy integration into automation systems. Ideal for frequent switching, it ensures high performance and long service life in motor starter combinations or control cabinets.

Standard Features

  • High Capacity: Handlescurrents up to 200 A and motor loads up to 110 kW (AC-3).

  • Wide Voltage Options: Operates upto 420 V AC coil, 

  • Reliable Switching: Designed for up to 3600 operations per hour under standard conditions.

  • Flexible Setup: 3-pole configuration with built-in auxiliary contacts (1NO + 1NC).

  • Global Compliance: CE and EAC certified, meeting IEC 60947-4-1 standards.

  • Space-Saving: Compact footprint for easy installation in panels and starters.

  • Long Life: Up to 10 million mechanical operations ensures durability.

Technical Specifications

Power RatingRated Control VoltageModel name
54 (55kW)B3 (AC/DC 23-26V)3RT5054-1B36
54 (55kW)M3 (AC/DC 200-220V)3RT5054-1M36
54 (55kW)R3 (AC/DC 440-480V)3RT5054-1AR36
55 (75kW)B3 (AC/DC 23-26V)3RT5055-6B36
55 (75kW)M3 (AC/DC 200-220V)3RT5055-6M36
55 (75kW)R3 (AC/DC 440-480V)3RT5055-6AR36
56 (90kW)B3 (AC/DC 23-26V)3RT5056-6B36
56 (90kW)M3 (AC/DC 200-220V)3RT5056-6M36
56 (90kW)R3 (AC/DC 440-480V)3RT5056-6AR36

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