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Dayton Supplementary Protector: 50 A Amps, 5kA at 277V AC, Screw Clamp, NDB2-63 - B-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors
DaytonB-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors

Dayton Supplementary Protector: 50 A Amps, 5kA at 277V AC, Screw Clamp, NDB2-63

The DAYTON IEC Supplementary Protector (SKU 5ZUW8) is a B-Curve, 1-Pole UL1077 DIN Rail-Mount supplementary protector from the NDB2-63 series, rated at 50 A Amps. It has a Max. AIR Rating of 5kA at 277V AC and an AC…

SKU 3G-OTH-20747

Brand
Dayton
Item
Supplementary Protector: 50 A Amps, 5kA at 277V AC, Screw Clamp, NDB2-63
Category
B-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors
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Technical Specifications

Dayton
Manufacturer Part Number
5ZUW8
Series
NDB2-63
Type
5kA at 277V AC, Screw Clamp, NDB2-63, B
AC
277V
Curve Type
B
Max. AIR Rating
5kA at 277V AC
AC Voltage Rating
277V AC
DC Voltage Rating
Not Rated
Terminal Connection
Screw Clamp
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Dayton Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The DAYTON IEC Supplementary Protector (SKU 5ZUW8) is a B-Curve, 1-Pole UL1077 DIN Rail-Mount supplementary protector from the NDB2-63 series, rated at 50 A Amps. It has a Max. AIR Rating of 5kA at 277V AC and an AC Voltage Rating of 277V AC, with a Screw Clamp terminal connection. This device is not rated for DC voltage.

Frequently Asked Questions

What is the DAYTON IEC Supplementary Protector 5ZUW8 used for?

The DAYTON IEC Supplementary Protector 5ZUW8 protects branch circuits and equipment from overcurrent and short circuits in industrial control panels. It is a B-Curve, 1-pole UL1077 device rated 50 A at 277V AC, commonly used in motor control centers and HVAC systems.

What are the specifications of the DAYTON 5ZUW8 supplementary protector?

The DAYTON 5ZUW8 is a 50 A, 1-pole supplementary protector from the NDB2-63 series. It has a max AIR rating of 5kA at 277V AC, AC voltage rating 277V AC, screw clamp terminals, and B-Curve trip characteristic. It is not rated for DC voltage.

Where to buy the DAYTON 5ZUW8 supplementary protector worldwide?

3G Electric supplies the DAYTON 5ZUW8 supplementary protector worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this NDB2-63 series device.

How to select the right supplementary protector for a 277V AC circuit?

Select a supplementary protector like the DAYTON 5ZUW8 by matching voltage (277V AC), current rating (50 A), and interrupting capacity (5kA). Choose curve type B for resistive loads or short circuit protection. Ensure UL1077 listing for branch circuit use. Always verify terminal type (screw clamp) and pole count.

Used in

Common applications for Dayton
HVAC ventilation — DAYTON centrifugal upblast roof exhaust fans (SKU 7M7U3) for kitchen exhaust systems
Mechanical power transmission — DAYTON HTD timing pulleys (SKU 404GV0) for conveyor belt drives
Process water handling — DAYTON self-priming centrifugal pumps (SKU 2ZXT4) for dewatering or transfer
Roofing and building services — DAYTON fixed ventilated roof curbs (SKU 4HX59) for filtered supply fan installations
Material handling — DAYTON latch assemblies (SKU 2KEN4) for electric chain hoist hook safety
Industrial air movement — DAYTON downblast roof exhaust fans (SKU 3HFL9) for clean air exhaust in manufacturing plants

Dayton Products

3G Electric supplies Dayton b-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.

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DAYTON IEC Supplementary Protector: 4 A Amps, 5kA at 277V AC, Screw Clamp, NDB2-63, 277V AC, B (MPN 5ZUW0). Key specifications — Brand: DAYTON; Terminal Connection: Screw Clamp; DC Voltage Rating: Not Rated; Max. AIR Rating: 5kA at 277V AC; Series: NDB2-63; AC Voltage Rating: 277V AC; Curve Type: B.
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DAYTON IEC Supplementary Protector: 1 A Amps, 5kA at 277V AC, Screw Clamp, NDB2-63, 277V AC, B (MPN 5ZUV8). Key specifications — Brand: DAYTON; Terminal Connection: Screw Clamp; DC Voltage Rating: Not Rated; Max. AIR Rating: 5kA at 277V AC; Series: NDB2-63; AC Voltage Rating: 277V AC; Curve Type: B.
DAYTON IEC Supplementary Protector: 10 A Amps, 5kA at 277V AC, Screw Clamp, NDB2-63, 277V AC, B (MPN 5ZUW2). Key specifications — Brand: DAYTON; Terminal Connection: Screw Clamp; DC Voltage Rating: Not Rated; Max. AIR Rating: 5kA at 277V AC; Series: NDB2-63; AC Voltage Rating: 277V AC; Curve Type: B.
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DAYTON IEC Supplementary Protector: 10 A Amps, 5kA at 277V AC, Screw Clamp, NDB2-63, 277V AC, B (MPN 5ZUW2). Key specifications — Brand: DAYTON; Terminal Connection: Screw Clamp; DC Voltage Rating: Not Rated; Max. AIR Rating: 5kA at 277V AC; Series: NDB2-63; AC Voltage Rating: 277V AC; Curve Type: B.
DAYTON IEC Supplementary Protector: 20 A Amps, 5kA at 277V AC, Screw Clamp, NDB2-63, 277V AC, B (MPN 5ZUW4). Key specifications — Brand: DAYTON; Terminal Connection: Screw Clamp; DC Voltage Rating: Not Rated; Max. AIR Rating: 5kA at 277V AC; Series: NDB2-63; AC Voltage Rating: 277V AC; Curve Type: B.
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