SIEMENS IEC Supplementary Protector: 16 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp
The SIEMENS IEC Supplementary Protector (MPN 5SY44165) is a 16 A, A-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector from the 5SY4 series. It is rated for 72V DC and has a breaking capacity of 10kA at 400V…
SKU 3G-OTH-127843
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
Need installation or engineering help?
Ask a question
Product Description
The SIEMENS IEC Supplementary Protector (MPN 5SY44165) is a 16 A, A-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector from the 5SY4 series. It is rated for 72V DC and has a breaking capacity of 10kA at 400V AC, with screw clamp terminals.
Frequently Asked Questions
What is the SIEMENS IEC Supplementary Protector 5SY44165 used for?
The SIEMENS IEC Supplementary Protector 5SY44165 is used for overcurrent protection in industrial control panels, HVAC equipment, and machinery. Its A-Curve trip characteristic suits resistive loads and low-inrush circuits. As a UL1077 supplementary protector, it is installed on DIN rails in branch circuits where a full circuit breaker is not required.
What are the specifications of the SIEMENS 5SY44165 supplementary protector?
The SIEMENS 5SY44165 is a 16 A, A-Curve, 4-Pole supplementary protector from the 5SY4 series. It is rated for 72V DC and has a breaking capacity of 10kA at 400V AC. Terminals are screw clamp type. It is UL1077 listed for DIN-rail mounting and manufactured by SIEMENS.
Where to buy the SIEMENS 5SY44165 supplementary protector worldwide?
You can source the SIEMENS 5SY44165 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; we provide competitive pricing and reliable supply for this SIEMENS 5SY4 series protector.
How to install the SIEMENS 5SY44165 supplementary protector on a DIN rail?
To install the SIEMENS 5SY44165, snap it onto a standard 35 mm DIN rail. Ensure the rail is clean and the protector clips engage firmly. Connect wires to the screw clamp terminals using the correct torque per SIEMENS guidelines. Verify the system is de-energized before installation. This A-Curve protector is for supplementary overcurrent protection only.
Used in
Common applications for SIEMENS IECSIEMENS IEC Products
3G Electric supplies SIEMENS IEC a-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.
