Siemens Supplementary Protector: 40 A Amps, 5kA at 230/400V AC, Screw Clamp, 5SY6
The SIEMENS IEC Supplementary Protector (SKU 3G-OTH-19857) is a C-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protector rated for 40 A Amps. It features a Max. AIR Rating of 5kA at 230/400V AC and an AC Voltage…
SKU 3G-OTH-19857
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 3G-OTH-19857) is a C-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protector rated for 40 A Amps. It features a Max. AIR Rating of 5kA at 230/400V AC and an AC Voltage Rating of 230/400V AC, with a Screw Clamp terminal connection. This unit is part of the 5SY6 series (MPN 5SY61407) and is not rated for DC voltage.
Frequently Asked Questions
What is the SIEMENS 5SY61407 supplementary protector used for?
The SIEMENS 5SY61407 is a C-curve, 1-pole supplementary protector rated 40 A at 230/400 V AC. It protects branch circuits and sensitive equipment from overloads and short circuits in industrial control panels, HVAC systems, and machinery, mounted on a DIN rail.
What are the specifications of the SIEMENS 5SY61407?
The SIEMENS 5SY61407 is a 40 A, C-curve, 1-pole supplementary protector with a max. AIR rating of 5 kA at 230/400 V AC. It uses screw-clamp terminals, is rated for AC only (not DC), and is part of the 5SY6 series. It is UL1077 listed for DIN-rail mounting.
Where to buy the SIEMENS 5SY61407 worldwide?
3G Electric supplies the SIEMENS 5SY61407 supplementary protector to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this 40 A, C-curve, 1-pole unit.
How to select a supplementary protector like the SIEMENS 5SY61407?
Select a supplementary protector by matching voltage (230/400 V AC), current (40 A), and curve type (C for moderate inrush). Ensure it is UL1077 listed for branch-circuit protection. The SIEMENS 5SY61407 uses screw-clamp terminals and mounts on a DIN rail for industrial panels.
Used in
Common applications for SiemensSiemens Products
3G Electric supplies Siemens c-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.
