Siemens 5SY42256 B-Curve 2-Pole Supplementary Protector
The SIEMENS IEC Supplementary Protector (SKU 5SY42256, MPN 5SY42256) is a B-curve, 2-pole UL1077 DIN rail-mount supplementary protector rated at 25 A. It features a screw clamp terminal connection, an AC voltage…
SKU 3G-OTH-21785
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The SIEMENS IEC Supplementary Protector (SKU 5SY42256, MPN 5SY42256) is a B-curve, 2-pole UL1077 DIN rail-mount supplementary protector rated at 25 A. It features a screw clamp terminal connection, an AC voltage rating of 400V AC, a DC voltage rating of 72V DC, and a maximum AIR rating of 10kA at 400V AC. This device is part of the Siemens 5SY4 series.
Frequently Asked Questions
What is the SIEMENS 5SY42256 supplementary protector used for?
The SIEMENS 5SY42256 is a B-curve, 2-pole supplementary protector rated at 25 A. It protects branch circuits and sensitive equipment against overloads and short circuits in industrial control panels, HVAC systems, and machinery. Its 72V DC rating also suits DC control circuits.
What are the specifications of the SIEMENS 5SY42256?
The SIEMENS 5SY42256 is a 25 A, B-curve, 2-pole supplementary protector with a screw clamp terminal. It has an AC voltage rating of 400V AC, a DC voltage rating of 72V DC, and a maximum AIR rating of 10kA at 400V AC. It is part of the Siemens 5SY4 series and is UL1077 listed.
Where to buy the SIEMENS 5SY42256 worldwide?
You can source the SIEMENS 5SY42256 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; we provide competitive pricing and reliable sourcing for this Siemens 5SY4 series protector.
How to install the SIEMENS 5SY42256 supplementary protector?
Install the SIEMENS 5SY42256 by snapping it onto a standard DIN rail. Ensure the circuit is de-energized. Connect wires to the screw clamp terminals per the torque specifications on the device label. Verify the B-curve matches your load type. Test operation after installation.
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Common applications for SiemensSiemens Products
3G Electric supplies Siemens b-curve, 2-pole ul1077 din rail-mount supplementary protectors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
