SIEMENS IEC Supplementary Protector: 0.5 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp
The SIEMENS IEC Supplementary Protector (MPN 5SY44058) is a D-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector rated at 0.5 A Amps. It features a breaking capacity of 10kA at 400V AC and a voltage rating…
SKU 3G-OTH-154291
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Product Description
The SIEMENS IEC Supplementary Protector (MPN 5SY44058) is a D-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector rated at 0.5 A Amps. It features a breaking capacity of 10kA at 400V AC and a voltage rating of 72V DC, with Screw Clamp terminals. This model is part of the SIEMENS 5SY4 series.
Frequently Asked Questions
What is the SIEMENS IEC Supplementary Protector 5SY44058 used for?
The SIEMENS IEC Supplementary Protector 5SY44058 is a D-Curve, 4-Pole UL1077 DIN Rail-Mount device rated at 0.5 A Amps. It protects downstream equipment against overcurrents and short circuits in industrial control panels, HVAC systems, and automation applications where branch-circuit protection is not required.
What are the specifications of the SIEMENS 5SY44058 supplementary protector?
The SIEMENS 5SY44058 is a 4-Pole D-Curve supplementary protector rated 0.5 A Amps, 72V DC, and 400V AC. It has a breaking capacity of 10kA at 400V AC and uses Screw Clamp terminals. It is part of the SIEMENS 5SY4 series and mounts on a standard DIN rail.
Where to buy the SIEMENS 5SY44058 supplementary protector worldwide?
You can source the SIEMENS 5SY44058 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 on this D-Curve, 4-Pole UL1077 device.
How to install the SIEMENS 5SY44058 DIN Rail-Mount supplementary protector?
To install the SIEMENS 5SY44058, snap it onto a standard 35mm DIN rail. Ensure the supply is de-energized. Connect conductors to the Screw Clamp terminals per the torque specifications in the datasheet. The D-Curve trip characteristic suits motor and transformer loads with high inrush currents.
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3G Electric supplies SIEMENS IEC d-curve, 4-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.















