3RT2037-1AC20

Siemens 3RT2037-1AC20 SIRIUS 3RT2 contactor, Size S2, 3-pole, 24V AC 50/60Hz
Siemens 3RT2037-1AC20 SIRIUS 3RT2 contactor, Size S2, 3-pole, 24V AC 50/60Hz

The Siemens 3RT2037-1AC20 contactor belongs to the SIRIUS 3RT2 series, Size S2, 3 poles, AC-3 rated 65A, 30kW (400V), control voltage 24V AC 50/60Hz, and is equipped with 1NO+1NC auxiliary contacts.

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Siemens 3RT2037-1AC20 SIRIUS 3RT2 contactor, Size S2, 3-pole, 24V AC 50/60Hz
Product Positioning

The Siemens 3RT2037-1AC20 contactor belongs to the SIRIUS 3RT2 series, with a size S2 housing. It features a 3-pole main contact design, an AC-3 rated current of 65A, a power of 30kW (400V), and can withstand 690V insulation voltage and 6kV impulse withstand voltage. The Siemens 3RT2037-1AC20 controls at 24V AC 50/60Hz, has 1 NO + 1 NC auxiliary contacts, and a mechanical life of 10 million cycles. It is suitable for use with thermal overload relays to form a standard three-phase motor starting circuit.

Core Product Advantages and Features
AC-3 rated 65A, 30kW
A 30kW three-phase motor can be directly started under 400V, suitable for medium and large load main circuits.
24V AC 50/60Hz coil
Dual-frequency universal, with built-in 1NO+1NC auxiliary contacts, facilitating the integration of low-voltage control circuits.
Insulation voltage 690V
Impact resistance up to 6kV, IP20 protection on the front panel, and mechanical life of 10 million cycles.
Size S2, 35mm guide rail mounting
The 55×114×130mm housing can be mounted on a DIN rail or fixed with screws, making maintenance convenient.
project Specification
Control/coil voltage 24V AC 50/60Hz
AC-3 rated current 65 A (400V)
AC-3 rated power 30 kW (400V)
Extreme number 3 poles
Auxiliary contact 1NO+1NC (built-in basic type)
Insulation voltage 690V
Rated impulse withstand voltage 6kV
Protection level IP20 (front) / IP00 (terminal)
Mechanical life 10 million times
External dimensions 55×114×130mm (width×height×depth)
Installation method 35mm DIN rail clamping or screw fixing
Applicable series/sizes SIRIUS 3RT2, Size S2
Operating ambient temperature -25°C ~ +60°C

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