SIEMENS IEC Supplementary Protector: 10 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp
The SIEMENS IEC Supplementary Protector (SKU 30XV98, MPN 5SY44108) is a D-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector rated at 10 A Amps. It features a 72V DC rating and a 10kA interrupting capacity…
SKU 3G-OTH-128106
Need installation or engineering help?
Ask a question
Product Description
The SIEMENS IEC Supplementary Protector (SKU 30XV98, MPN 5SY44108) is a D-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector rated at 10 A Amps. It features a 72V DC rating and a 10kA interrupting capacity at 400V AC, with Screw Clamp terminals. This model is part of the SIEMENS 5SY4 series.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the SIEMENS IEC Supplementary Protector 5SY44108 used for?
The SIEMENS IEC Supplementary Protector 5SY44108 is a D-Curve, 4-Pole UL1077 DIN Rail-Mount device rated at 10 A Amps. It protects industrial control circuits and equipment from overcurrents and short circuits, commonly used in panel building, automation, and machinery applications where reliable supplementary protection is required.
What are the specifications of the SIEMENS 5SY44108 supplementary protector?
The SIEMENS 5SY44108 is a 4-Pole D-Curve supplementary protector rated at 10 A Amps, 400V AC, and 72V DC. It has a 10kA interrupting capacity at 400V AC and features Screw Clamp terminals. This model is part of the SIEMENS 5SY4 series and complies with UL1077 standards for DIN Rail mounting.
Where to buy the SIEMENS 5SY44108 supplementary protector worldwide?
You can source the SIEMENS 5SY44108 supplementary protector worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine SIEMENS IEC components for industrial applications.
How to install the SIEMENS 5SY44108 supplementary protector on a DIN rail?
To install the SIEMENS 5SY44108, snap it onto a standard DIN rail by engaging the top clip and pressing down until it locks. Use a screwdriver to tighten the Screw Clamp terminals to the recommended torque for your wire gauge. Ensure the circuit is de-energized before installation and follow SIEMENS guidelines for proper spacing and derating.
Used in
Common applications for SIEMENS IECSIEMENS IEC Products
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.















