3RT2027-1AK60

The 3RT2027-1AK60 is a Siemens SIRIUS S0 size three-pole power contactor with a 110V AC (50Hz)/120V AC (60Hz) control coil, 1NO+1NC auxiliary contacts, AC-3 rated 32A/15kW, 10 million mechanical lifespan, and high versatility.

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Siemens 3RT2027-1AK60 Power Contactor 110/120V Coil 32A

Product Positioning

The 3RT2027-1AK60 is a Siemens SIRIUS 3RT2 series S0 size three-pole power contactor. The control coil specifications are 110V AC (50Hz)/120V AC (60Hz). It is commonly used in North America and some export machines for control voltage requirements. The main circuit AC-3 is rated at 32A/15kW (400V). The 1NO+1NC auxiliary contacts can be used as operation feedback or interlock protection signals. The screw terminal wiring method facilitates field wiring and regular maintenance. It is suitable for applications such as motor starting, fans and pumps.

Core Product Advantages and Features

110/120V AC dual-frequency control coil

50Hz corresponds to 110V, 60Hz corresponds to 120V, one model can meet the needs of different power systems.

1NO+1NC auxiliary contact

Real-time feedback of main contact status facilitates the determination of operating status when connected to a PLC or interlocking circuit.

AC-3 32A/15kW rated

It can achieve a switching capacity of 32A/15kW under 400V/500V loads, with ample motor starting margin.

High mechanical life and IP20 protection

Mechanical life of 10 million operations, IP20 protection rating suitable for installation in general distribution boxes.

project	Specification
Model (MLFB)	3RT2027-1AK60
Series/Size	SIRIUS 3RT2,S0
Extreme number	3 poles
AC-3 rated (400V/500V)	32A / 15kW
AC-3 rated (690V)	21A / 18.5kW
Control coil voltage	110V AC 50Hz / 120V AC 60Hz
auxiliary contacts	1 NO + 1 NC
Terminal type	Screw terminals (main circuit 1–10mm², auxiliary circuit 0.5–2.5mm²)
External dimensions (width × height × depth)	45 × 85 × 97 mm
Mechanical life	10 million times
Electrical life (AC-4, 400V, 12A)	Approximately 200,000 times
Rated insulation voltage	690V (Pollution Level 3)
IP protection rating (positive)	IP20
Operating temperature range	-25°C ~ +60°C
Certification	UL, CSA, CCC, KC, EAC, and also ship classification certifications, RoHS compliant.

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