Siemens Industrial Controls 3RT2045-1AK60 SIRIUS 3-Pole Contactor 80A 120V Coil

The Siemens 3RT2045-1AK60 is a 3-pole SIRIUS contactor rated for 80 amps under AC-3 conditions (120 amps AC-1) with 1 normally open and 1 normally closed base-mounted auxiliary contact. This IEC-rated motor contactor features a 110V AC 50Hz / 120V AC 60Hz coil and is rated for 37 kW at 400V. In three-phase applications, it handles 30 HP at 230 volts and 60 HP at 460 volts.

Key Features:

• 3-pole configuration with 1NO + 1NC base auxiliary contacts
• 37 kW power rating at 400V, 80A AC-3 / 120A AC-1 current rating
• Four-point AC coil can be wired on top, bottom, or diagonally
• Integrated varistor surge suppressor for coil protection
• Screw terminal type connections
• DIN rail mountable for flexible installation
• Operating temperature range: -25°C to 60°C
• IP00/IP20 protection rating, rated for 10,000,000 operating cycles

This contactor accepts snap-on auxiliary contacts, surge suppressors, and timers for expanded functionality. It can be paired with 3RU21 series overload relays to create complete motor starters. The 3RT2045-1AK60 serves as the replacement for the now-obsolete 3RT1045-1AK60 model. These contactors are suitable for use in any climate and are safe from touch to DIN VDE 0106 Part 100. Part of the Siemens SIRIUS 3RT2 series, this contactor is designed for reliable control of electric motors in industrial applications.