Siemens Supplementary Protector: 45 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp
The Siemens 5SY4 series IEC supplementary protector (SKU 30XU59) is a C-curve, 1-pole UL1077 DIN rail-mount device rated at 45 A. It features a maximum AIR rating of 10kA at 230/400V AC, an AC voltage rating of…
SKU 3G-OTH-19972
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Product Description
The Siemens 5SY4 series IEC supplementary protector (SKU 30XU59) is a C-curve, 1-pole UL1077 DIN rail-mount device rated at 45 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 5SY41457 supplementary protector used for?
The Siemens 5SY41457 is a C-curve, 1-pole supplementary protector rated at 45 A. It protects branch circuits in industrial control panels, HVAC equipment, and lighting systems against overloads and short circuits. Its UL1077 listing makes it suitable for applications requiring overcurrent protection up to 72V DC or 230/400V AC.
What are the specifications of the Siemens 5SY41457?
The Siemens 5SY41457 is a 45 A, 1-pole supplementary protector with a C-curve. It has a maximum AIR rating of 10kA at 230/400V AC, AC voltage rating of 230/400V AC, and DC voltage rating of 72V DC. Terminal connection is screw clamp. It is part of the 5SY4 series and mounts on DIN rail.
Where to buy the Siemens 5SY41457 worldwide?
3G Electric supplies the Siemens 5SY41457 worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source and deliver this supplementary protector to any country.
How to install the Siemens 5SY41457 supplementary protector?
Install the Siemens 5SY41457 by snapping it onto a standard DIN rail. Ensure the circuit is de-energized. Connect wires to the screw clamp terminals, tightening to the torque specified on the device label. Verify the C-curve matches your load type. Follow local electrical codes and manufacturer guidelines for safe installation.
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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.
