Siemens 5SY4 D-Curve 1-Pole Supplementary Protector
The SIEMENS 5SY4 series IEC Supplementary Protector (SKU 3G-OTH-20186) is a 40 A, D-curve, 1-pole UL1077 DIN rail-mount supplementary protector. It features a screw clamp terminal connection and is rated for 10kA at…
SKU 3G-OTH-20186
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- 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.
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Product Description
The SIEMENS 5SY4 series IEC Supplementary Protector (SKU 3G-OTH-20186) is a 40 A, D-curve, 1-pole UL1077 DIN rail-mount supplementary protector. It features a screw clamp terminal connection and is rated for 10kA at 230/400V AC and 72V DC.
Frequently Asked Questions
What is the SIEMENS 5SY41408 supplementary protector used for?
The SIEMENS 5SY41408 is a 40 A, D-curve, 1-pole supplementary protector designed to protect branch circuits and equipment from overcurrents and short circuits. It is commonly used in industrial control panels, HVAC systems, and machinery where UL1077 listing is required. Its D-curve characteristic suits high-inrush loads like motors and transformers.
What are the specifications of the SIEMENS 5SY41408?
The SIEMENS 5SY41408 is a 40 A, D-curve, 1-pole supplementary protector with a screw clamp terminal connection. It is rated for 10kA at 230/400V AC and 72V DC. The device is part of the 5SY4 series and mounts on a DIN rail. It carries a UL1077 listing and is suitable for industrial applications.
Where to buy the SIEMENS 5SY41408 worldwide?
You can source the SIEMENS 5SY41408 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 times. 3G Electric supplies genuine Siemens components for industrial applications.
How to install the SIEMENS 5SY41408 supplementary protector?
Install the SIEMENS 5SY41408 by snapping it onto a standard DIN rail. Ensure the circuit is de-energized before wiring. Connect the line and load conductors to the screw clamp terminals, tightening to the manufacturer's recommended torque. Verify the D-curve matches the inrush characteristics of your load. Follow local electrical codes.
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3G Electric supplies Siemens d-curve, 1-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.