Siemens SIRIUS 3RT Safety Contactor
The SIEMENS SIRIUS 3RT Safety Contactor is a 3-pole, 24V DC, 38 A IEC power contactor from the SIRIUS 3RT series. It features integrated surge suppression and is identified by manufacturer part number 3RT20281FB443MA0.
SKU 3G-OTH-39561
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The SIEMENS SIRIUS 3RT Safety Contactor is a 3-pole, 24V DC, 38 A IEC power contactor from the SIRIUS 3RT series. It features integrated surge suppression and is identified by manufacturer part number 3RT20281FB443MA0.
Frequently Asked Questions
What is the SIEMENS SIRIUS 3RT safety contactor used for?
The SIEMENS SIRIUS 3RT safety contactor is used for safely switching and isolating motors and other industrial loads in safety-critical circuits. It is commonly applied in machinery, conveyor systems, and process automation where reliable emergency stop and safety interlock functions are required.
What are the specifications of the SIEMENS 3RT20281FB443MA0 contactor?
The SIEMENS 3RT20281FB443MA0 is a 3-pole IEC power contactor rated 38 A with a 24 V DC coil. It is part of the SIRIUS 3RT series and includes integrated surge suppression. The manufacturer part number is 3RT20281FB443MA0.
Where to buy the SIEMENS 3RT20281FB443MA0 contactor worldwide?
You can source the SIEMENS 3RT20281FB443MA0 contactor worldwide through 3G Electric. As a global industrial equipment distributor since 1990, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.
How to install the SIEMENS SIRIUS 3RT safety contactor?
Mount the contactor on a DIN rail or panel using the provided clips. Connect the 24 V DC coil supply to the A1 and A2 terminals, ensuring correct polarity. Wire the three main poles in series with the load circuit. Follow Siemens wiring diagrams and local safety codes for proper installation.
Used in
Common applications for SiemensSiemens 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.
