3RT1056-0LA06

The 3RT1056-0LA06 is a large contactor body from the Siemens SIRIUS 3RT10 series S6 frame. It has an AC-3 current of 185A and a power of 90kW/400V. The operating coil is not included at the factory, but the coil module can be matched according to the field control voltage. It is suitable for both unified spare parts planning and individual coil replacement needs.

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Product image of Siemens SIRIUS 3RT1056-0LA06 large power contactor body
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The 3RT1056-0LA06 is a Siemens SIRIUS 3RT10 series S6 frame large contactor body, suitable for 90kW three-phase motor control circuits. This model does not include an operating coil at the factory; however, the corresponding coil module can be freely selected according to the actual control voltage. This is particularly suitable for situations where parts are stocked uniformly in the factory or where individual coil replacements are needed due to damage. Kenxin Motors provides original factory parts and selection suggestions.

Core Product Advantages and Features
S6 Large Frame Design
The AC-3 is rated at 185A and 90kW/400V, and is suitable for direct start control of the main circuit of large three-phase motors.
The main body does not include coils.
The product does not include an operating coil. You can choose to match the coil module according to the voltage on site, which makes the material preparation more flexible.
The coil can be replaced individually.
When the coil is damaged, there is no need to replace the entire contactor body, reducing maintenance costs and downtime.
2NO+2NC auxiliary contacts
It has 4 built-in auxiliary contacts to meet control needs such as interlocking, feedback and indication.
High durability mechanical life
The mechanical life reaches 10 million operating cycles, ensuring stable and reliable long-term use.
Original manufacturer authorized distributor warranty
Kenxin Motors provides genuine Siemens products, with warranty and technical consultation services.
project Specification
brand Siemens
series SIRIUS 3RT10
model 3RT1056-0LA06
Frame size S6
Extreme number 3P (3 normally open main contacts)
AC-3 Rated Current/Power 185 A / 90 kW, 400V AC
auxiliary contacts 2 NO + 2 NC
Coil configuration Operating coil not included (for main unit type, coil module required separately).
External dimensions (height × width × depth) 172 × 120 × 170 mm
net weight Approximately 2.84 kg (excluding coil)
Main circuit wiring method Busbar (copper busbar) terminals, compatible with 25-120 mm² wires.
Auxiliary/control circuit wiring Screw terminals
Mechanical life 10 million times

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