3RT2037-1NB30

Siemens 3RT2037-1NB30 contactor, Size S2, 3-pole, 65A
Siemens 3RT2037-1NB30 contactor, Size S2, 3-pole, 65A

The Siemens 3RT2037-1NB30 contactor is a SIRIUS 3RT2 series S2, 3-pole contactor with AC-3 rated current of 65A, power of 30kW (400V), control voltage of 20-33VAC/DC, equipped with 1NO+1NC auxiliary contacts, and mechanical life of 10 million cycles.

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Siemens 3RT2037-1NB30 contactor, Size S2, 3-pole, 65A
Product Positioning

The Siemens 3RT2037-1NB30 contactor belongs to the SIRIUS 3RT2 series, Size S2, 3-pole standard model, AC-3 rated current 65A, power 30kW (400V), and is the most common low-voltage electronic control version in this series. The Siemens 3RT2037-1NB30 controls voltages from 20-33VAC/DC, supports universal AC/DC power supplies, requires no polarity selection, and is equipped with 1 NO + 1 NC auxiliary contacts for basic status feedback.

Core Product Advantages and Features
Size S2 standard 3-pole contactor
The AC-3 has a rated current of 65A and a power of 30kW (400V), and is suitable for switching medium and large motors.
Control voltage 20-33VAC/DC
Electronic circuits use both AC and DC power supplies, and polarity does not need to be identified during wiring.
1NO+1NC auxiliary contact
Provides feedback on the action status of the main contact for easy interlocking control.
Screw terminals, 35mm guide rail
Mechanical life of 10 million cycles, insulation voltage of 690V, and high operating frequency.
project Specification
Rated current AC-3 65A (400V)
Rated power AC-3 30kW (400V)
Extreme number 3 poles
Control voltage 20-33VAC/DC
Auxiliary contact configuration 1NO+1NC
Terminal type Screw terminals
Maximum operating frequency AC-3 800 times/hour
Rated insulation voltage Ui 690V
Rated impulse withstand voltage Uimp 6kV
Protection level IP20 (front) / IP00 (terminal)
Mechanical life 10 million times
External dimensions 55 (width) × 114 (height) × 130 (depth) mm
Installation method 35mm standard guide rail clamping/screw fixing
Applicable series/sizes SIRIUS 3RT2, Size S2
Certification CE, UL, CSA, CCC

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