3RT2038-1AG20

The Siemens 3RT2038-1AG20 contactor, part of the SIRIUS 3RT2 series, is an S2/3-pole contactor with an AC-3 rated capacity of 80A and 37kW (400V). It operates at 110VAC and features 1 NO + 1 NC auxiliary contact. The contactor is rated for 690V insulation, IP20 rating, and has a mechanical life of 10 million cycles.

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Siemens 3RT2038-1AG20 Contactor, S2 size/3 poles/80A

Product Positioning

The Siemens 3RT2038-1AG20 contactor is a SIRIUS 3RT2 series S2 size, 3-pole design, AC-3 rated current 80A, 37kW (400V), suitable for direct starting control of general three-phase motors. The Siemens 3RT2038-1AG20 controls at 110VAC, 50/60Hz, and is equipped with 1NO+1NC auxiliary contacts. It has an insulation voltage of 690V, IP20 protection class, a mechanical life of 10 million operations, and a wide range of wire diameters (1-50mm²) for the main circuit screw terminals.

Core Product Advantages and Features

S2 size 3-pole main contactor

AC-3 rated current 80A, 37kW (400V), suitable for general motor direct starting circuits.

110VAC control voltage

690V insulation, IP20 protection

It can withstand 6kV surge voltage and has a mechanical life of 10 million operating cycles.

Wide screw terminals

The main circuit can accept wire diameters of 1-50mm², while the auxiliary circuit can accept wire diameters of 0.5-2.5mm², offering high flexibility in construction.

project	Specification
Rated current (AC-3)	80A
Rated power	37kW (400V)
Extreme number	3 poles
Control/coil voltage	110VAC, 50/60Hz
Auxiliary contact configuration	1NO+1NC
Insulation voltage	690V
Protection level	IP20
Surge withstand voltage	6kV
Mechanical life	10 million times
External dimensions	114×55×130 mm
weight	Approximately 0.989 kg
Terminal type	Screw terminals (main circuit 1-50mm², auxiliary 0.5-2.5mm²)
Applicable series/sizes	SIRIUS 3RT2, Size S2
Certification	UL, CSA, CCC, KC, EAC, CE Declaration of Conformity

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