Siemens Supplementary Protector: 13 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp
The Siemens 5SY4 series IEC supplementary protector (SKU 3G-OTH-20890) is a B-curve, 1-pole UL1077 DIN rail-mount device rated at 13 A. It features a maximum AIR rating of 10kA at 230/400V AC, an AC voltage rating of…
SKU 3G-OTH-20890
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 5SY4 series IEC supplementary protector (SKU 3G-OTH-20890) is a B-curve, 1-pole UL1077 DIN rail-mount device rated at 13 A. It features a maximum AIR rating of 10kA at 230/400V AC, an AC voltage rating of 230/400V AC, and a DC voltage rating of 72V DC, with screw clamp terminals.
Frequently Asked Questions
What is the Siemens 5SY4 supplementary protector used for?
The Siemens 5SY4 supplementary protector is used to protect industrial control circuits, HVAC equipment, and panelboards from overcurrent and short circuits. Its B-curve trip characteristic suits resistive or lighting loads. It mounts on a DIN rail and meets UL1077 standards for supplementary protection in commercial and industrial applications.
What are the specifications of the Siemens 5SY4 13 A supplementary protector?
The Siemens 5SY4 supplementary protector is rated at 13 A with a B-curve trip characteristic. It has a maximum AIR rating of 10kA at 230/400V AC, an AC voltage rating of 230/400V AC, and a DC voltage rating of 72V DC. It features screw clamp terminals and is a 1-pole DIN rail-mount device (MPN 5SY41136).
Where to buy the Siemens 5SY4 supplementary protector worldwide?
You can source the Siemens 5SY4 supplementary protector 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 device.
How to install the Siemens 5SY4 supplementary protector on a DIN rail?
To install the Siemens 5SY4 supplementary protector, snap it onto a standard 35 mm DIN rail until it locks. Connect wires to the screw clamp terminals using a screwdriver, tightening to the torque specified on the device label. Ensure the circuit is de-energized before installation. Follow Siemens guidelines for proper orientation and spacing.
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3G Electric supplies Siemens b-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.
