3RT20241DB443MA0

Siemens 3RT2024-1DB44-3MA0 contactor 24V DC 2NO2NC
Siemens 3RT2024-1DB44-3MA0 contactor 24V DC 2NO2NC

Siemens 3RT2024-1DB44-3MA0, S0 frame three-pole contactor, AC-3 rated 12A/5.5kW (400V), 24V DC coil with built-in varistor, 2NO+2NC auxiliary contacts, screw terminals, net weight approx. 0.652kg

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Siemens 3RT2024-1DB44-3MA0 contactor 24V DC 2NO2NC
Product Positioning

The SIRIUS 3RT2024-1DB44-3MA0 is a relatively unique model in Siemens' S0 frame contactor lineup. Its main circuit has a rated AC-3 output of 12A at 400V and a power output of 5.5kW. The coil operates at 24V DC and includes a built-in varistor to directly suppress surge voltage during coil de-energization. It features four auxiliary contacts (2NO + 2NC) secured with screw terminals. The unit weighs approximately 0.652 kg and is slightly longer than the standard model. It is suitable for automation applications requiring a large number of auxiliary circuit points and prioritizing coil protection. Kenxin Motors has it in stock for selection.

Core Product Advantages and Features
24V DC coil with built-in varistor
A varistor surge suppression element has been installed on the coil side. When power is off, it can reduce the interference of induced surges on the surrounding electronic circuits and reduce the need for additional suppression devices.
A total of 4 auxiliary contacts: 2NO + 2NC
It has twice the number of contacts compared to the standard 1NO+1NC configuration, making it suitable for control systems that need to simultaneously feed back multiple sets of status signals or multiple interlocks.
S0 frame 12A/5.5kW main circuit
The AC-3 is rated at 12A and 5.5kW (400V), belonging to the S0 frame contactor in the Siemens 3RT20 series with a relatively small current rating.
Screw terminals, extended body design
Due to the built-in 4 sets of auxiliary contacts and surge suppression components, the body depth is increased compared to the standard model, with external dimensions of approximately 54×92×159mm and a net weight of 0.652kg.
project Specification
model 3RT2024-1DB44-3MA0
Product Type Three-pole electromagnetic contactor (with built-in surge suppression)
Frame size S0
AC-3 Rated Current/Power 12A / 5.5kW (400V)
coil voltage 24V DC (built-in varistor)
Auxiliary contact 2NO+2NC
Terminal type Screw terminals
Insulation voltage 690V
Rated impulse withstand voltage 6kV
Mechanical life 10 million times
Protection level IP20
net weight Approximately 0.652 kg
External dimensions 54×92×159mm

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