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/Products/Electrical Components/WEG/Circuit Breakers/Miniature (UMBW)/2 Pole, Trip Curve B, UL1077/UMBW-1B2-4 WEG Miniature Circuit Breaker, 4 Amp, 2 Pole
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Product ID: UMBW-1B2-4

UMBW-1B2-4 WEG Miniature Circuit Breaker, 4 Amp, 2 Pole

MFG: WEG Electric Corporation
MFG Part Number: UMBW-1B2-4

Selected accessories will also be added to cart
$17.76 / Each
Quantity:
14352885, Thermal-Magnetic, Trip Curve B, 277/480VAC, UL1077

Description

The WEG UMBW series thermal-magnetic miniature circuit breaker line includes both UL489 and UL1077 approvals to provide a solution for circuit & equipment protection in industrial electrical equipment. The UMBW has a range from 1 to 63 amps, and is available in 1,2 or 3 poles, with B, C and D trip curves.

Standard Features

  • AC & DC voltages available in one series
  • UL489 Branch circuit protective device
  • UL1077 Equipment protection
  • 17.5mm width per pole
  • Visual status indication
  • Positive trip-free snap action mechanism to ensure reliable switching
  • Cuttable bus bar connecting system

Specifications

Manufacturer WEG
Catalog Number
Approval UL1077
Trip Curve B
4xIn (+/-20%) Magnetic Trip Current
Calibrated for resistive or non/low inductive loads
Applications: Lighting, Control Circuits
Number of Poles 2
Current Rating Amps
UPC
Country of Origin Brazil

Technical Data

Mechanical Ratings:
Mounting Position Vertical
Horizontal
Torque 2 Nm Max
1.48 ft-lbs Max
Cable Cross Section 35mm sq Max
2AWG Max
Ambient Temperature -35°C to +70°C
Mass 116 grams/pole
Protection Class IP20
Mechanical Operations 10,000
Vibration (sinusoidal) +/-0.38mm (10-57Hz), 5g
Test to IEC 60060-2-6 57-500Hz
Test to Fc 10 frequency cycles per axis
Shock Test to IEC60068-2-27 30g (11ms), Test Ea
Corrosion Test to IEC60068-2-11 96hrs in 5% Salt Mist, Tesk Ka
Humidity Test to IEC60068-2-78 48hrs at 95% RH, Temp +40°C, Test Cab
Terminals Screw with Bus Bar Connections

About

About UMBW Line

The UMBW has a range from 1 to 63 Amps, available in 1,2, 3 poles, and B, C, D trip curves. Single pole and multi-pole thermal-magnetic miniature circuit breakers (MCBs) are in accordance with EN 60947-2, UL 1077 and UL 489 for DIN rail mounting with toggle actuation, visual status indication, and high interrupt capacity. A positively trip-free snap action mechanism ensures reliable switching behavior. A range of trip characteristics and add-on accessories make the UMBW suitable for a variety of applications.

Standard Features

  • AC and DC voltages available in one series;
  • UL489 branch circuit protective device;
  • UL1077 equipment protection;
  • 17.5mm width per pole;
  • Visual status indication;
  • Positive trip-free snap action mechanism to ensure reliable switching;
  • Cuttable bus bar connecting system.