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Siemens Magnetic Contactor: 3 Poles, 24V DC, 12 A - Safety Contactors
SiemensSafety Contactors

Siemens Magnetic Contactor: 3 Poles, 24V DC, 12 A

The SIEMENS IEC Magnetic Contactor is a 3-pole safety contactor from the SIRIUS 3RT series, operating at 24V DC with a 12 A rating. This model (MPN 3RT20171BB443MA0) does not include integrated surge suppression.

SKU 3G-OTH-40283

Brand
Siemens
Item
Magnetic Contactor: 3 Poles, 24V DC, 12 A
Category
Safety Contactors
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Technical Specifications

Siemens
Manufacturer Part Number
3RT20171BB443MA0
Type
12 A, SIRIUS 3RT Safety Contactors
DC
24V
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 24V DC with a 12 A rating. This model (MPN 3RT20171BB443MA0) does not include integrated surge suppression.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the SIEMENS 3RT20171BB443MA0 safety contactor used for?

The SIEMENS 3RT20171BB443MA0 is a 3-pole safety contactor from the SIRIUS 3RT series, designed for safety-related switching applications in industrial machinery and plant engineering. It reliably disconnects loads in emergency-stop circuits and safety interlocks, helping meet functional safety requirements.

What are the specifications of the SIEMENS 3RT20171BB443MA0?

This SIEMENS IEC magnetic contactor has 3 poles, operates at 24 VDC, and is rated for 12 A. It is part of the SIRIUS 3RT safety contactor series (MPN 3RT20171BB443MA0) and does not include integrated surge suppression. It is suitable for safety circuits requiring reliable disconnection.

Where to buy the SIEMENS 3RT20171BB443MA0 worldwide?

You can source the SIEMENS 3RT20171BB443MA0 safety contactor through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this SIRIUS 3RT series component.

How to select the correct SIEMENS safety contactor for an application?

To select the right SIEMENS safety contactor, verify the coil voltage (e.g., 24 VDC), number of poles (3), and rated current (12 A for this model). Ensure the contactor is used in safety circuits per the manufacturer's guidelines. For surge suppression needs, consider an external suppressor since this model lacks integrated surge suppression.

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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