Circuit Breaker, NDB2-63 B20/1 Series, 20A, 1 Pole, 277V AC, 5kA at 277V AC, B Curve MPN:5ZUW4
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In Stock
Free Shipping
In Stock
SKU
510-G3450806
Circuit Breaker, NDB2-63 B20/1 Series, 20A, 1 Pole, 277V AC, 5kA at 277V AC, B Curve
Protect your electrical systems with the Dayton NDB2-63 B20/1 Series Circuit Breaker, a reliable and efficient IEC Supplementary Protector. Suitable for supplemental protection in a variety of applications, this 20A, 1-pole circuit breaker offers a maximum air rating of 5kA at 277V AC. With a thermal magnetic trip type and screw clamp terminal connections, it provides robust protection against electrical faults. Ideal for use in commercial and industrial settings, this circuit breaker meets UL Type UL 1077 standards and features a compact design for easy installation on DIN rail. Ensure safe and reliable operation with this dependable circuit breaker.
Top product features:
- Protects against overcurrents with a 5kA at 277V AC rating
- Provides supplemental protection with a thermal magnetic trip type
- Mounts to DIN rail for easy installation
Top product applications:
- Supplemental Protection
- Thermal Magnetic Circuit Breaker
- IEC Supplementary Protector
IEC Supplementary Protector, Amps 20 A, AC Voltage Rating 277V AC, Max. AIR Rating 5kA at 277V AC, Series NDB2-63, Curve Type B, DC Voltage Rating Not Rated, Number of Poles 1, Phase 1, Circuit Breaker Actuator Toggle, Circuit Breaker Mounting Style DIN Rail, Meets UL Type UL 1077, Terminal Connection Screw Clamp, Trip Type Thermal Magnetic, Application Supplemental Protection, Min. Wire Size 14 AWG, Max. Wire Size 4 AWG, Length 3.21 in, Width 0.71 in, Depth 2.91 in
Additional Information
- Country of Origin: CN
- Drop Ship Item: No
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 1 days
- Minimum Order Quantity: 1
- Unit of Measure: EA
- Package Length: 4.70
- Package Width: 1.00
- Package Height: 3.20
- Package Weight: 0.24
- California Prop 65 Warning: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Product info last updated on February 11, 2026 9:56pm UTC
Category: Circuit Protection