Siemens 5SY41205 A-Curve 1-Pole UL1077 Supplementary Protector
The Siemens 5SY4 Series IEC Supplementary Protector (SKU 3G-OTH-21450) is a 20 Amp, A-Curve, 1-pole UL1077 DIN rail-mount supplementary protector. It features a screw clamp terminal connection and is rated for…
SKU 3G-OTH-21450
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.
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Product Description
The Siemens 5SY4 Series IEC Supplementary Protector (SKU 3G-OTH-21450) is a 20 Amp, A-Curve, 1-pole UL1077 DIN rail-mount supplementary protector. It features a screw clamp terminal connection and is rated for 230/400V AC with a maximum AIR rating of 10kA, as well as 72V DC.
Frequently Asked Questions
What is the Siemens 5SY41205 supplementary protector used for?
The Siemens 5SY41205 is a 20 A, A-curve supplementary protector designed to protect branch circuits and sensitive equipment from overloads and short circuits. It is commonly used in industrial control panels, HVAC systems, and machinery where DIN rail mounting and UL1077 compliance are required.
What are the specifications of the Siemens 5SY41205?
The Siemens 5SY41205 is a 20 A, 1-pole supplementary protector with a screw clamp terminal. It is rated for 230/400V AC with a 10kA interrupting capacity, and 72V DC. It features an A-curve trip characteristic and is part of the 5SY4 series, designed for DIN rail mounting.
Where to buy the Siemens 5SY41205 worldwide?
The Siemens 5SY41205 is available to order 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 source and deliver this Siemens supplementary protector globally.
How to install the Siemens 5SY41205 supplementary protector?
Install the Siemens 5SY41205 by snapping it onto a standard DIN rail. Ensure the circuit is de-energized, then connect wires to the screw clamp terminals per the torque specifications in the datasheet. Follow local electrical codes and use appropriate overcurrent protection upstream. Always consult a qualified electrician.
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3G Electric supplies Siemens a-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.