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Siemens Magnetic Contactor: 3 Poles, 120V AC, 16 A - Safety Contactors
SiemensSafety Contactors

Siemens Magnetic Contactor: 3 Poles, 120V AC, 16 A

The SIEMENS IEC Magnetic Contactor is a 3-pole safety contactor from the SIRIUS 3RT series, operating at 120V AC and rated for 16 A. This model (MPN 3RT20181AK643MA0) does not include integrated surge suppression.

SKU 3G-OTH-40384

Brand
Siemens
Item
Magnetic Contactor: 3 Poles, 120V AC, 16 A
Category
Safety Contactors
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Technical Specifications

Siemens
Manufacturer Part Number
3RT20181AK643MA0
Type
16 A, SIRIUS 3RT Safety Contactors
AC
120V
Integrated Surge Suppression
No
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS IEC Magnetic Contactor is a 3-pole safety contactor from the SIRIUS 3RT series, operating at 120V AC and rated for 16 A. This model (MPN 3RT20181AK643MA0) does not include integrated surge suppression.

Frequently Asked Questions

What is the SIEMENS 3RT20181AK643MA0 contactor used for?

This SIEMENS SIRIUS 3RT safety contactor is used for reliable switching and isolation in industrial machinery safety circuits. It is commonly applied in emergency stop, guard door monitoring, and two-hand control systems across manufacturing, packaging, and process automation.

What are the specifications of the SIEMENS 3RT20181AK643MA0?

The SIEMENS 3RT20181AK643MA0 is a 3-pole IEC magnetic contactor rated 16 A at 120V AC. It is part of the SIRIUS 3RT safety contactor series and does not include integrated surge suppression. It is designed for safety-related switching applications in industrial control panels.

Where to buy the SIEMENS 3RT20181AK643MA0 worldwide?

3G Electric supplies the SIEMENS 3RT20181AK643MA0 safety contactor to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact our team for a quote and lead time on this genuine Siemens part.

How to select the right SIEMENS safety contactor for my application?

Select a SIEMENS SIRIUS 3RT safety contactor based on your load current, coil voltage, and number of poles. For the 3RT20181AK643MA0, verify your circuit requires 16 A at 120V AC and 3 poles. Ensure your safety system design meets applicable standards and that surge suppression is handled externally if needed.

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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