Dayton Supplementary Protector: 10 A Amps, 7.5kA at 480V AC, Screw Clamp, NDB2-63
The DAYTON IEC Supplementary Protector (SKU 5ZUY4) is a B-Curve, 3-Pole UL1077 DIN Rail-Mount supplementary protector from the NDB2-63 series, rated at 10 A Amps. It features a Max. AIR Rating of 7.5kA at 480V AC, an…
SKU 3G-OTH-19921
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Product Description
The DAYTON IEC Supplementary Protector (SKU 5ZUY4) is a B-Curve, 3-Pole UL1077 DIN Rail-Mount supplementary protector from the NDB2-63 series, rated at 10 A Amps. It features a Max. AIR Rating of 7.5kA at 480V AC, an AC Voltage Rating of 480V AC, and a Screw Clamp terminal connection; it is Not Rated for DC voltage.
Frequently Asked Questions
What is the DAYTON IEC Supplementary Protector 5ZUY4 used for?
The DAYTON IEC Supplementary Protector 5ZUY4 is used to protect industrial control circuits and equipment from overcurrent and short circuits. It is commonly applied in panel building, HVAC systems, and machinery control panels where branch circuit protection is not required.
What are the specifications of the DAYTON 5ZUY4 supplementary protector?
The DAYTON 5ZUY4 is a B-Curve, 3-Pole UL1077 DIN Rail-Mount supplementary protector from the NDB2-63 series. It is rated at 10 A Amps, with a Max. AIR Rating of 7.5kA at 480V AC, AC Voltage Rating of 480V AC, and Screw Clamp terminal connection. It is Not Rated for DC voltage.
Where to buy the DAYTON 5ZUY4 supplementary protector worldwide?
You can source the DAYTON 5ZUY4 supplementary protector through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring your order arrives reliably. Contact us for availability and lead time.
How to install the DAYTON NDB2-63 supplementary protector?
Install the DAYTON NDB2-63 supplementary protector by snapping it onto a standard 35 mm DIN rail. Ensure the circuit is de-energized, then connect wires using the Screw Clamp terminals with the correct torque. Follow UL1077 guidelines and local electrical codes for safe installation.
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3G Electric supplies Dayton b-curve, 3-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.













