SIEMENS IEC 5SY44258 D-Curve 4-Pole UL1077 Supplementary Protector
The SIEMENS IEC Supplementary Protector (MPN 5SY44258) is a 25 A, D-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector rated at 72V DC and 10kA at 400V AC. It features a Screw Clamp connection and is part of…
SKU 3G-OTH-128180
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
Need installation or engineering help?
Ask a question
Product Description
The SIEMENS IEC Supplementary Protector (MPN 5SY44258) is a 25 A, D-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector rated at 72V DC and 10kA at 400V AC. It features a Screw Clamp connection and is part of the 5SY4 series from SIEMENS.
Frequently Asked Questions
What is the SIEMENS IEC Supplementary Protector 5SY44258 used for?
The SIEMENS 5SY44258 is a 25 A, D-Curve, 4-Pole supplementary protector used to protect industrial control circuits and equipment from overcurrents and short circuits. It mounts on a DIN rail and is suitable for 400V AC and 72V DC applications.
What are the specifications of the SIEMENS 5SY44258?
The SIEMENS 5SY44258 is rated 25 A, 72V DC, and 10kA at 400V AC. It features a D-Curve trip characteristic, 4 poles, a Screw Clamp connection, and is UL1077 listed for DIN rail mounting. It is part of the 5SY4 series from SIEMENS.
Where to buy the SIEMENS 5SY44258 supplementary protector worldwide?
3G Electric supplies the SIEMENS 5SY44258 supplementary protector 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 D-Curve, 4-Pole UL1077 protector.
How to install the SIEMENS 5SY44258 on a DIN rail?
To install the SIEMENS 5SY44258, snap it onto a standard 35 mm DIN rail. Ensure the rail is clean and the protector clips engage firmly. Wire using the Screw Clamp terminals per the torque specs in the manual. Always de-energize the circuit before installation.
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.