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Siemens SIRIUS 3RT1056-6AP36-0UA0

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3RT1056-6AP36-0UA0

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The Siemens 3RT1056-6AP36-0UA0 from the SIRIUS series is a robust contactor designed for demanding applications. This device features three poles, with a functioning coil voltage of 220–240 V AC/DC. Rated for operational voltages of 460/575 V AC, it is capable of handling significant power levels.

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Technical specifications for 3RT1056-6AP36-0UA0

ManufacturerSiemens
Product LineSIRIUS
Part Number3RT1056-6AP36-0UA0
UPC754554887623
Weight7.00 lbs (3.18 kg)
Number of Poles3 Poles
Auxiliary Contacts2 Normally Open (NO) + 2 Normally Closed (NC)
Coil Voltage220–240 V AC/DC
Rated Operational Voltage460/575 V AC (50–60 Hz)
Rated Operational Current (AC-3)185 A
Rated Operational Power (AC-3)90 kW at 400 V
Rated Insulation Voltage690 V
Rated Impulse Withstand Voltage6 kV
Rated Short-Circuit Withstand Strength100 kA
Mechanical Service Life10 million operating cycles
Electrical Service Life1 million operating cycles
Mounting TypeBusbar connections
Protection ClassIP20
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The 3RT1056-6AP36-0UA0 model from Siemens is a part of the SIRIUS series, recognized for its reliability in industrial control settings. Configured with three poles, this contactor operates with a coil voltage of 220–240 V AC/DC. It can handle an operational voltage rated at 460/575 V AC, supporting frequencies between 50 and 60 Hz.

The contactor is rated for a continuous current of 185 A under AC-3 conditions, accommodating significant electrical loads with an operational power specification of 90 kW at 400 V. Auxiliary features include two normally open (NO) contacts and two normally closed (NC) contacts, augmenting its flexibility in various setups.

Designed for durability, the rated insulation voltage reaches 690 V, while it withstands impulse voltages of 6 kV, ensuring high levels of protection against electrical surges. The rated short-circuit withstand strength of 100 kA enhances its reliability by minimizing risks during fault conditions.

In terms of lifecycle, the mechanical service life is rated at 10 million cycles, whereas the electrical service life is rated for 1 million operating cycles, making it suitable for long-term applications. The mounting type utilizes busbar connections, making installation straightforward.

Overall dimensions measure 190 mm x 181 mm x 129 mm, with a weight of approximately 3.35 kg, and its protection rating is IP20, indicating suitable use in environments where accidental contact with energized parts is not expected.