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NOARK® Electric B1 UL489 miniature circuit breakers are available in a complete range of amperages from 0.5A to 63A. Standard ratings of 10 kA at 120/240 Vac and 10 kA at 125 Vdc. These are suitable for branch circuit protection. 5-Year limited warranty.

Unit of Measure

Specifications

Brands

 N/A NOARK®

Number of Poles

 N/A 2

Rated Current

 N/A 50 A

Alternating Current (AC) Voltage

 N/A 120 V240 V

Tripping Curve

 N/A 3-5 in

Features

Features

 N/A
  • Breakers mount on standard 35 mm DIN rail
  • Can be used in UL 1077 or CSA C22.2 No.235 applications
  • Field installable shunt trip and auxiliary switch
  • Available with provisions for ring tongue terminals
  • Module width of only 0.71 in (18 mm) per pole
  • Contact position indicator (red/green)
  • Possibility for locking the toggle in ON or OFF position

Typical Applications

Typical Applications

 N/A Branch Circuit Protection
  • Convenience receptacle circuits (internal/external)
  • Motor control circuits
  • Load circuits leaving the equipment (external)
  • HVACR equipment: heating, ventilation, air conditioning, refrigeration (internal/external)
  • PLC I/O points
  • Power supplies
  • Control instrumentation
  • Relays
  • UPS
  • Power conditioners

Certifications

Certifications

 N/A UL 489 File Number E355392 / CSA Standards C22.2 No. 5-16 / IEC 60947-2

Standard for MCCB for feeder and branch circuit protection.
  • Certified for Canada According to CSA C22.2 No. 5-16 standard for branch circuit protection.
  • UL 489 file number E355392 standard for connection terminals which allows the user to apply field wiring directly to the breaker.
  • UL 486 standard for connection terminals which allows the user to apply field wiring directly to the breaker.
  • IEC 60947-2 standard for industrial applications of circuit protection.
RoHS
  • These devices are RoHS compliant.

Note

Note

 N/A Standard mount is DIN rail. Order FMC31N clips for flush mount; order SMC31N for surface mount.

Downloads

Certification

 N/A B1N Series Miniature Circuit Breakers (B1H B1N B1NQ CE NOARK)
B1NQ Series Miniature Circuit Breakers (UL 489 B1NQ Certificate NOARK)

Data Sheet

 N/A B1NQ Series Miniature Circuit Breakers (MCB B1NQ Data Sheet S2019 NOARK)

Instruction Booklet

 N/A 3514

White Paper

 N/A Underwriters Laboratories (UL 489) Miniature Circuit Breakers (MCB vs Fuse White Paper NOARK)

3D CAD Drawing STP

 N/A B1NQ Series 2-Poles, 0.5 Ampere (A) Rated Current Miniature Circuit Breaker (CAD Step File)

DWG - 2D CAD Drawing

 N/A B1H Series 0.5 Ampere (A) Rated Current and 277 Volt (V) Alternating Current (AC) Voltage Miniature Circuit Breaker (CAD Drawing)

DXF - 2D CAD Drawing

 N/A B1H Series 0.5 Ampere (A) Rated Current and 277 Volt (V) Alternating Current (AC) Voltage Miniature Circuit Breaker (Drawing -DXF)

PDF - 2D CAD Drawings

 N/A B1H Series 0.5 Ampere (A) Rated Current and 277 Volt (V) Alternating Current (AC) Voltage Miniature Circuit Breaker (Downloadable)
B1NQ Series 1-Pole, 0.5 Ampere (A) Rated Current Miniature Circuit Breaker (Downloadable)