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Siemens Magnetic Contactor: 3 Poles, 120V AC, 51 A - Safety Contactors
SiemensSafety Contactors

Siemens Magnetic Contactor: 3 Poles, 120V AC, 51 A

The SIEMENS IEC Magnetic Contactor: 3 Poles is a safety contactor from the SIRIUS 3RT series, operating at 120V AC and rated for 51 A. This model (MPN 3RT20361AK643MA0) does not include integrated surge suppression.

SKU 3G-OTH-39648

Brand
Siemens
Item
Magnetic Contactor: 3 Poles, 120V AC, 51 A
Category
Safety Contactors
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Technical Specifications

Siemens
Manufacturer Part Number
3RT20361AK643MA0
Type
51 A, SIRIUS 3RT Safety Contactors
AC
120V
Integrated Surge Suppression
No

Technical Documents

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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS IEC Magnetic Contactor: 3 Poles is a safety contactor from the SIRIUS 3RT series, operating at 120V AC and rated for 51 A. This model (MPN 3RT20361AK643MA0) does not include integrated surge suppression.

Frequently Asked Questions

What is the SIEMENS 3RT20361AK643MA0 safety contactor used for?

The SIEMENS 3RT20361AK643MA0 is a SIRIUS 3RT safety contactor used to safely interrupt power in industrial machinery and automation systems. It is commonly applied in emergency-stop circuits, safety gates, and conveyor controls to meet functional safety requirements.

What are the specifications of the SIEMENS 3RT20361AK643MA0?

This SIEMENS IEC magnetic contactor has 3 poles, a coil voltage of 120V AC, and a rated current of 51 A. It is part of the SIRIUS 3RT series and does not include integrated surge suppression. The manufacturer part number is 3RT20361AK643MA0.

Where to buy the SIEMENS 3RT20361AK643MA0 in worldwide?

You can source the SIEMENS 3RT20361AK643MA0 safety contactor through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time.

How to install the SIEMENS 3RT20361AK643MA0 safety contactor?

Mount the SIEMENS 3RT20361AK643MA0 on a DIN rail or panel using the provided slots. Connect the 120V AC coil supply to terminals A1 and A2, and wire the main power contacts per your circuit diagram. Ensure no surge suppression is added externally if required.

Used in

Common applications for Siemens
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks

Siemens Products

3G Electric supplies Siemens safety contactors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
This Siemens SIRIUS 3RT safety contactor is a 3-pole IEC magnetic contactor rated for 120V AC coil voltage and 96 A. It is designed for use in safety-related automation systems, such as emergency-stop circuits and machinery safety applications, to ensure reliable switching of motors and other loads. The contactor does not include integrated surge suppression
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This Siemens SIRIUS 3RT safety contactor is a 3-pole IEC magnetic contactor rated for 120V AC coil voltage and 96 A. It is designed for use in safety-related automation systems, such as emergency-stop circuits and machinery safety applications, to ensure reliable switching of motors and other loads. The contactor does not include integrated surge suppression
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SIEMENS IEC Magnetic Contactor: 3 Poles, 24V DC, 51 A, SIRIUS 3RT Safety Contactors (MPN 3RT20361KB443MA0)
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SIEMENS IEC Magnetic Contactor: 3 Poles, 24V DC, 41 A, SIRIUS 3RT Safety Contactors (MPN 3RT20351KB443MA0)
IEC magnetic contactor with 3 poles, rated 120V AC and 9 A. Part of the SIRIUS 3RT series for safety applications. No integrated surge suppression. Used for switching motors and loads in industrial machinery, conveyors, and safety circuits requiring reliable isolation and emergency-stop functionality
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IEC magnetic contactor with 3 poles, rated 120V AC and 9 A. Part of the SIRIUS 3RT series for safety applications. No integrated surge suppression. Used for switching motors and loads in industrial machinery, conveyors, and safety circuits requiring reliable isolation and emergency-stop functionality
SIEMENS IEC Magnetic Contactor: 3 Poles, 120V AC, 25 A, SIRIUS 3RT Safety Contactors (MPN 3RT20261AK643MA0)
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