Siemens Supplementary Protector: 25 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp
The Siemens 5SY4 series IEC supplementary protector (SKU 3G-OTH-21436) is a 25 A, A-curve, 1-pole UL1077 DIN rail-mount device. It features a screw clamp terminal connection and is rated for 230/400V AC with a…
SKU 3G-OTH-21436
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- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The Siemens 5SY4 series IEC supplementary protector (SKU 3G-OTH-21436) is a 25 A, A-curve, 1-pole UL1077 DIN rail-mount device. It features a screw clamp terminal connection and is rated for 230/400V AC with a maximum AIR rating of 10kA, as well as 72V DC.
Frequently Asked Questions
What is the Siemens 5SY41255 supplementary protector used for?
The Siemens 5SY41255 is a 25 A, A-curve, 1-pole supplementary protector designed for overcurrent protection in industrial control panels, HVAC equipment, and lighting circuits. It mounts on a DIN rail and meets UL1077 standards for branch-circuit protection in AC and DC applications.
What are the specifications of the Siemens 5SY41255?
The Siemens 5SY41255 is rated 25 A with a 10kA interrupting capacity at 230/400V AC and 72V DC. It features a screw clamp terminal connection, A-curve trip characteristic, and 1-pole DIN rail-mount design. The series is 5SY4 and the MPN is 5SY41255.
Where to buy the Siemens 5SY41255 worldwide?
3G Electric supplies the Siemens 5SY41255 supplementary protector worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this Siemens 5SY4 series device to any country.
How to install the Siemens 5SY41255 supplementary protector?
Install the Siemens 5SY41255 by snapping it onto a 35 mm DIN rail. Ensure the circuit is de-energized, then connect wires to the screw clamp terminals per the torque rating on the device label. Follow Siemens' instructions for proper orientation and clearance; always verify voltage and current ratings match your application.
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3G Electric supplies Siemens a-curve, 1-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.
