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UL489 Miniature Circuit Breaker from Entek Electric
Introducing a series of UL489 MCB model KBU
Entek Electric's UL489 Miniature Circuit Breakers (MCBs) models KBU - used to protect electrical circuits with a high level of reliability in domestic, commercial, and industrial applications. KBU Miniature Circuit Breakers (MCBs) protect low voltage applications in case of overload and short circuit faults.

Features:
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Rated current: 6A, 10A, 15A, 20A, 25A, 30A, 40A, 50A, 60A
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Different range of tripping characteristics: C, D Curve
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In accordance with UL489 with ETL certificate
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Operating voltage AC 480/ 277V, DC 60/ 125V
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High breaking capacity throughout the range 10kA


Technical Specifications





Miniature Circuit Breaker
UL489/UL1077
Specifications
Type
Conformed Standard
Number of Poles
Rated Operation Voltage (V)
Rated Frequency (Hz)
Rated Current (A)
Short Circuit Capacity (kA)
Tripping Characteristics
KBUH
KBUN
KBUD
KBU
UL489
UL1077
1 2 3
1 2 3
1 2 3
1 2
480Y/277 Vac
240 Vac
120/240 Vac
60 Vdc
125 Vdc
50/ 60
6 - 30
6 - 60
6 - 63
40, 50, 60
10
10
10
5
B (3 - 5 In), C (5 - 10 In), D (10 - 20 In)
Dimension (mm)

Selection Table

UL489 B Curve

UL489 C Curve

UL489 D Curve

UL489 B Curve
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