3RT2037-1AL20

Siemens 3RT2037-1AL20 SIRIUS 3RT2 contactor, Size S2, 3-pole, 230V AC 50/60Hz
Siemens 3RT2037-1AL20 SIRIUS 3RT2 contactor, Size S2, 3-pole, 230V AC 50/60Hz

The Siemens 3RT2037-1AL20 contactor belongs to the SIRIUS 3RT2 series, Size S2, 3 poles, AC-3 rated 65A, 30kW (400V), control voltage 230V AC 50/60Hz, and is equipped with 1NO+1NC auxiliary contacts.

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Siemens 3RT2037-1AL20 SIRIUS 3RT2 contactor, Size S2, 3-pole, 230V AC 50/60Hz
Product Positioning

The Siemens 3RT2037-1AL20 contactor belongs to the SIRIUS 3RT2 series, has a size S2 housing, a 3-pole main contact design, an AC-3 rated current of 65A, a power of 30kW (400V), and can withstand an insulation voltage of 690V and an impulse withstand voltage of 6kV. The Siemens 3RT2037-1AL20 controls at 230V AC 50/60Hz, has 1 NO + 1 NC auxiliary contacts, a mechanical life of 10 million cycles, and is suitable for use with thermal overload relays to form a standard three-phase motor starting circuit.

Core Product Advantages and Features
230V AC coil design
50/60Hz dual-frequency compatibility, coupled with 1NO+1NC auxiliary contacts, ensures stable signal feedback.
AC-3 current 65A, power 30kW
A 30kW three-phase motor can be switched under 400V rated voltage, suitable for standard motor starting applications.
Weighing 1.49kg and compact in size
The dimensions are approximately 122.5×142×62mm (including terminals), and the Size S2 housing facilitates panel layout.
Mechanical life of 10 million cycles
With an insulation voltage of 690V and an impulse withstand voltage of 6kV, it is stable and reliable during long-term switching.
project Specification
Control/coil voltage 230V 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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