3RT1055-6AP30

The 3RT1055-6AP30 is a Siemens SIRIUS 3RT10 series S6 large power contactor with a three-pole design, AC-3 rated current of 150A and rated power of 75kW (400V). It is equipped with a 220-240V AC/DC coil and screw terminals, and is suitable for heavy-duty motor starting, switchboard and industrial automation control circuits.

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Actual picture of Siemens 3RT1055-6AP30 SIRIUS S6 large power contactor

Product Positioning

The 3RT1055-6AP30 is an S6 large power contactor in the Siemens SIRIUS 3RT10 series, specifically designed for motor starting, fan and pump operation, and high-current switching in production lines. Its three-pole main contacts, paired with a 220-240V AC/DC coil, flexibly meet the control voltage requirements of plant power distribution systems. Its robust design and long switching life make it a reliable choice for large switchboards and motor control centers.

Core Product Advantages and Features

S6 Large Case

The three-pole main contacts adopt an S6 size design, which can carry AC-3 rated 150A, 75kW (400V) high current load, and is suitable for heavy motors and large electromechanical equipment.

220-240V AC/DC coil

The coil can operate stably under 220-240V AC or DC voltage, making it convenient to adapt to different factory control power supply specifications.

Screw terminal design

Both the main circuit and the control circuit use screw terminals, which makes wiring and construction convenient, and maintenance and replacement relatively simple.

High mechanical life

The mechanism is designed to withstand tens of millions of mechanical operation cycles, significantly reducing the frequency of equipment downtime and replacement.

Original factory certified quality

It complies with multiple international safety certifications such as UL and CE, and is suitable for export equipment and power distribution systems in multinational factories.

Kenxin Motor Authorized Supplier

Kenxin Motors is an authorized distributor of Siemens, providing genuine products and technical consultation services after delivery.

project	Specification
brand	Siemens
series	SIRIUS 3RT10
model	3RT1055-6AP30
Case size	S6
Extreme number	3-pole (3P)
AC-3 rated current	150 A (400V)
AC-3 rated power	75 kW (400V)
Coil/Control Voltage	220...240 V AC/DC
Main circuit/control circuit terminals	Screw terminals
External dimensions (height × width × depth)	Approximately 172×120×170 mm
Mechanical life	Approximately 10 million times
Maximum operating frequency (AC-3)	750 times/hour
Ambient temperature	-25℃ to +60℃
Certification	UL, CE, etc.

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