3RT2038-1KB44

Siemens 3RT2038-1KB44 SIRIUS contactor, Size S2, 3 poles, 80A
Siemens 3RT2038-1KB44 SIRIUS contactor, Size S2, 3 poles, 80A

Siemens 3RT2038-1KB44 SIRIUS contactor, 3-pole, Size S2, AC-3 rated 80A, 37kW (400V), control voltage 24V DC, with 2NO+2NC auxiliary contacts.

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Siemens 3RT2038-1KB44 SIRIUS contactor, Size S2, 3 poles, 80A
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The Siemens 3RT2038-1KB44 contactor is a SIRIUS 3RT2 series, Size S2, 3-pole design, AC-3 rated current 80A, 37kW (400V), and includes a surge suppression circuit. It features 4 sets of detachable auxiliary contacts. The Siemens 3RT2038-1KB44 controls at 24V DC, equipped with 2NO+2NC auxiliary contacts, and has a maximum rated operating voltage of 690V.

Core Product Advantages and Features
Size S2 three-pole contactor
AC-3 rated current 80A, 37kW (400V), suitable for starting and switching medium and large motors.
Control voltage 24V DC
The 24V DC coil has a built-in surge suppression circuit, suitable for 2A PLC output control.
2NO+2NC auxiliary contacts
Two sets of normally open and two sets of normally closed auxiliary contacts are detachable and suitable for multiple interlocking circuits.
High mechanical life design
Mechanical life up to 10 million cycles, insulation voltage 690V, protection level IP20.
project Specification
Applicable series/sizes SIRIUS 3RT2 Series Size S2
Extreme number 3 poles
Rated current (AC-3) 80A (400V)
Rated power 37kW (400V)/45kW (690V)/22kW (230V)
Control/coil voltage 24V DC
Auxiliary contact configuration 2NO+2NC
Insulation voltage 690V
Rated impulse withstand voltage 6kV
Mechanical life 10 million times
Protection level IP20
External dimensions (height x width x depth) 114 x 55 x 130 mm
weight 1.230kg
Terminal type Screw terminals
Installation method 35mm standard guide rail clamping/screw fixing
Applicable Standards IEC 60947-4-1; UL/CSA certified

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