3RT2027-1AG26

The 3RT2027-1AG26 is a Siemens SIRIUS S0 size three-pole power contactor, AC-3 rated 32A/15kW, with screw terminals and IP20 protection, a mechanical life of 10 million cycles, 690V insulation class, and suitable for various three-phase motor starting applications.

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Siemens 3RT2027-1AG26 Power Contactor S0 32A

Product Positioning

The 3RT2027-1AG26 belongs to the Siemens SIRIUS 3RT2 series S0 size three-pole power contactor family. It shares the same main circuit specifications as other coil versions in the same series. It is rated at AC-3 32A/15kW (400V), has screw terminal wiring, and has a 690V insulation class and IP20 protection. It has a mechanical life of 10 million operations and is suitable as a direct starting and protection element for various three-phase induction motors. Since this part number is a special coil/auxiliary contact combination version, it is recommended to confirm the actual control voltage and auxiliary contact configuration with Kenxin Motor sales before placing an order.

Core Product Advantages and Features

S0 size three-pole power contactor

It shares the same main circuit design as the 3RT2027 series, with AC-3 rated at 32A/15kW (400V), and has high installation compatibility.

690V insulation class

Both the main circuit and auxiliary circuit have passed the 690V insulation test and have a pollution level of 3, making them suitable for industrial power distribution environments.

Screw terminal wiring

The main circuit can be connected to 1–10 mm² wires, making on-site wiring and maintenance highly convenient.

High mechanical life

With a mechanical lifespan of 10 million operations, it maintains stable switching performance even after prolonged and frequent opening and closing.

project	Specification
Model (MLFB)	3RT2027-1AG26
Series/Size	SIRIUS 3RT2,S0
Extreme number	3 poles
AC-3 rated (400V/500V)	32A / 15kW
AC-3 rated (690V)	21A / 18.5kW
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 certification, RoHS compliant.

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