Siemens 5SY4 Series D-Curve 1-Pole UL1077 Supplementary Protector
The Siemens 5SY4 series IEC Supplementary Protector (SKU 5SY41148, MPN 5SY41148) is a D-curve, 1-pole UL1077 DIN rail-mount supplementary protector rated at 0.3 A. It features a maximum AIR rating of 10kA at 230/400V…
SKU 3G-OTH-20266
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 5SY41148, MPN 5SY41148) is a D-curve, 1-pole UL1077 DIN rail-mount supplementary protector rated at 0.3 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 5SY41148 supplementary protector used for?
The Siemens 5SY41148 is a D-curve, 1-pole UL1077 DIN rail-mount supplementary protector rated at 0.3 A. It protects sensitive equipment like PLCs and instrumentation from overcurrents and short circuits in industrial control panels, HVAC systems, and machinery across 14 industrial departments.
What are the specifications of the Siemens 5SY41148?
The Siemens 5SY41148 (MPN 5SY41148) is a 0.3 A, D-curve supplementary protector with screw clamp terminals. It has an AC voltage rating of 230/400V AC, a DC voltage rating of 72V DC, and a maximum AIR rating of 10kA at 230/400V AC. It is part of the 5SY4 series.
Where to buy the Siemens 5SY41148 worldwide?
3G Electric supplies the Siemens 5SY41148 supplementary protector worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this and other Siemens industrial control components.
How to select the right supplementary protector for a control panel?
Select a supplementary protector like the Siemens 5SY41148 based on system voltage (AC/DC), current rating (0.3 A), and curve type (D for high inrush). Ensure it meets UL1077 standards and has appropriate interrupting capacity (10kA at 230/400V AC). 3G Electric can help match specifications to your application.
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3G Electric supplies Siemens d-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.