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Siemens SIRIUS 3RT Safety Contactor - Safety Contactors
SiemensSafety Contactors

Siemens SIRIUS 3RT Safety Contactor

The SIEMENS IEC Magnetic Contactor: 3 Poles is a safety contactor from the SIRIUS 3RT series, operating at 24V DC with an 80 A rating. It features integrated surge suppression and is identified by manufacturer part…

SKU 3G-OTH-39709

Brand
Siemens
Item
SIRIUS 3RT Safety Contactor
Part Number
3RT20381KB443MA0
Category
Safety Contactors
Available to Order
Also known as:3RT20381KB443MA0Siemens
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Siemens
Manufacturer Part Number
3RT20381KB443MA0
Type
80 A, SIRIUS 3RT Safety Contactors
DC
24V
Integrated Surge Suppression
Yes

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 24V DC with an 80 A rating. It features integrated surge suppression and is identified by manufacturer part number 3RT20381KB443MA0.

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 3RT20381KB443MA0 safety contactor used for?

The SIEMENS 3RT20381KB443MA0 is a SIRIUS 3RT safety contactor used to safely interrupt power in industrial machinery and control systems. It is commonly applied in emergency-stop circuits, safety gates, and conveyor systems where reliable disconnection is required to protect personnel and equipment.

What are the specifications of the SIEMENS 3RT20381KB443MA0?

This SIEMENS IEC magnetic contactor has 3 poles, operates at 24 VDC, and is rated for 80 A. It is part of the SIRIUS 3RT safety contactor series and includes integrated surge suppression. The manufacturer part number is 3RT20381KB443MA0.

Where to buy the SIEMENS 3RT20381KB443MA0 worldwide?

You can source the SIEMENS 3RT20381KB443MA0 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.

How to install the SIEMENS 3RT20381KB443MA0 safety contactor?

Mount the contactor on a DIN rail or panel using the provided slots. Connect the 24 VDC control voltage to the coil terminals, and wire the main power contacts according to your circuit diagram. Ensure the integrated surge suppression is properly grounded. Always follow Siemens installation guidelines for safety.

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
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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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