3RT1075-6NP36

The 3RT1075-6NP36 is a Siemens SIRIUS large contactor with an S12 base, rated at 400A AC-3. Its operating mechanism is 24V DC electronic, allowing direct drive from PLC output signals, eliminating the need for traditional AC/DC coils, and making it suitable for automation integration.

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Siemens 3RT1075-6NP36 Electronic Large Contactor Product Image

Product Positioning

The 3RT1075-6NP36 is an S12 large contactor in the Siemens SIRIUS 3RT10 series. Its most distinctive feature is its 24V DC electronic operating mechanism, which can be directly driven by PLC digital output without the need for traditional AC/DC coils. Its 400A AC-3 rated current is suitable for large motor control, and automation integration is simplified.

Core Product Advantages and Features

S12 Large Stand

The main circuit terminals are connected via busbars, making it suitable for high-current, heavy-load applications.

AC-3 rated 400A

With a power output of approximately 200kW at 400V, it is capable of starting and switching large motors.

24V DC electronic operating mechanism

Driven directly by PLC digital output, eliminating the need for traditional AC/DC coils.

2NO+2NC auxiliary contacts

Built-in instantaneous auxiliary contact facilitates control circuit status feedback.

High mechanical life

Compliant with IEC 60947-4-1 standard, and has undergone long-term switching testing.

Suitable for automated integration

Electronic drives can reduce the complexity of control panel wiring and improve reliability.

project	Specification
series	SIRIUS 3RT10
Base size	S12
Extreme number	3 poles
AC-3 rated current	400A (400V)
AC-3 rated power	Approximately 200kW (400V)
Operating mechanism	Electronic type, including PLC interface
Operating signal voltage	24V DC
auxiliary contacts	2NO+2NC Instantaneous Type
Mechanical life	10,000,000 times
Protection level	IP00 (with IP20 cap)
External dimensions (height x width x depth)	214 x 160 x 225 mm
weight	Approximately 10.12 kg
Major Certifications	UL (file E31519), CSA, CCC, CE, EAC

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