Siemens Supplementary Protector: 63 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp
The SIEMENS IEC Supplementary Protector (SKU 30XV20, MPN 5SY42636) is a B-Curve, 2-Pole UL1077 DIN Rail-Mount supplementary protector rated at 63 A Amps. It features a Max. AIR Rating of 10kA at 400V AC, AC Voltage…
SKU 3G-OTH-21956
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Product Description
The SIEMENS IEC Supplementary Protector (SKU 30XV20, MPN 5SY42636) is a B-Curve, 2-Pole UL1077 DIN Rail-Mount supplementary protector rated at 63 A Amps. It features a Max. AIR Rating of 10kA at 400V AC, AC Voltage Rating of 400V AC, and DC Voltage Rating of 72V DC, with a Screw Clamp terminal connection from the 5SY4 series.
Frequently Asked Questions
What is the SIEMENS 5SY42636 supplementary protector used for?
The SIEMENS 5SY42636 is a B-curve, 2-pole supplementary protector rated at 63 A. It protects branch circuits in industrial control panels, HVAC equipment, and machinery from overloads and short circuits, with a 10kA interrupting rating at 400V AC and 72V DC capability.
What are the specifications of the SIEMENS 5SY42636?
The SIEMENS 5SY42636 is a 63 A, B-curve, 2-pole supplementary protector with a max. AIR rating of 10kA at 400V AC. It has an AC voltage rating of 400V AC, a DC voltage rating of 72V DC, and a screw clamp terminal connection. It is part of the 5SY4 series and is UL1077 listed.
Where to buy the SIEMENS 5SY42636 supplementary protector worldwide?
3G Electric supplies the SIEMENS 5SY42636 supplementary protector to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this B-curve, 63 A, 2-pole protector from the 5SY4 series.
How to select the right supplementary protector for a 400V AC circuit?
For a 400V AC circuit, select a supplementary protector with a voltage rating equal to or greater than the system voltage, like the SIEMENS 5SY42636 rated at 400V AC. Ensure the interrupting rating (10kA) exceeds available fault current, and choose the curve type (B for resistive loads) based on your application.
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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.













