Siemens 5SY44257 C-Curve 4-Pole Supplementary Protector
The SIEMENS IEC Supplementary Protector (SKU 5SY44257, MPN 5SY44257) is a C-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector rated at 25 A Amps. It features a Max. AIR Rating of 10kA at 400V AC, a DC…
SKU 3G-OTH-20486
Local availability & support — the Philippines
- Delivery
- 5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
- Payment
- Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
- Ships to
- Manila, Quezon City, Cebu, Davao, Batangas
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Product Description
The SIEMENS IEC Supplementary Protector (SKU 5SY44257, MPN 5SY44257) is a C-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector rated at 25 A Amps. It features a Max. AIR Rating of 10kA at 400V AC, a DC Voltage Rating of 72V DC, and a Screw Clamp terminal connection. This device is part of the 5SY4 series and is designed for overcurrent protection in industrial applications.
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 5SY44257 supplementary protector used for?
The SIEMENS 5SY44257 is a C-curve, 4-pole UL1077 DIN rail-mount supplementary protector rated at 25 A. It provides overcurrent protection in industrial control panels, machinery, and automation systems where branch-circuit protection is not required. Its 72V DC rating suits DC control circuits.
What are the specifications of the SIEMENS 5SY44257?
The SIEMENS 5SY44257 (MPN 5SY44257) is a 25 A, 4-pole supplementary protector with a C-curve trip characteristic. It has a max. AIR rating of 10kA at 400V AC, a DC voltage rating of 72V DC, and screw clamp terminals. It is part of the 5SY4 series and mounts on a DIN rail.
Where to buy the SIEMENS 5SY44257 worldwide?
3G Electric supplies the SIEMENS 5SY44257 supplementary protector to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this genuine Siemens component.
How to install a SIEMENS 5SY4 series supplementary protector?
Install the SIEMENS 5SY4 series protector by snapping it onto a standard 35 mm DIN rail. Ensure the supply is de-energized. Connect conductors to the screw clamp terminals per the torque rating on the device label. Follow local electrical codes and the manufacturer's instructions for proper overcurrent protection.
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3G Electric supplies Siemens c-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.