Siemens 5SY4 Series C-Curve 4-Pole Supplementary Protector
The SIEMENS IEC Supplementary Protector (SKU 5SY44407, MPN 5SY44407) is a C-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector from the 5SY4 series, rated at 40 A Amps. It features a Max. AIR Rating of 10kA…
SKU 3G-OTH-20505
Local availability & support
- 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 (SKU 5SY44407, MPN 5SY44407) is a C-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector from the 5SY4 series, rated at 40 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.
Frequently Asked Questions
What is the SIEMENS 5SY44407 supplementary protector used for?
The SIEMENS 5SY44407 is a C-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector used to protect branch circuits and equipment from overcurrents and short circuits in industrial control panels, HVAC systems, and automation applications. It is rated for 40 A Amps and 400V AC systems.
What are the specifications of the SIEMENS 5SY44407?
The SIEMENS 5SY44407 is a 4-pole supplementary protector from the 5SY4 series with a 40 A Amp rating, a Max. AIR Rating of 10kA at 400V AC, a DC Voltage Rating of 72V DC, and a Screw Clamp terminal connection. It is UL1077 listed and designed for DIN rail mounting.
Where to buy the SIEMENS 5SY44407 worldwide?
You can source the SIEMENS 5SY44407 (SKU 3G-OTH-20505) 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 C-Curve supplementary protector.
How to install the SIEMENS 5SY44407 supplementary protector?
To install the SIEMENS 5SY44407, snap it onto a standard DIN rail, ensuring the C-Curve trip characteristic matches your circuit. Connect wires using the Screw Clamp terminals, torqueing to manufacturer specifications. Always de-energize the system before installation and follow local electrical codes.
Used in
Common applications for SiemensSiemens Products
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.
