BK63H / HU Series Miniature Circuit Breakers

Key Features

  • Pole : 1P, 2P, 3P, 4P
  • Rated current : 1~63A
  • Curve : B, C, D (for BK63HU has K also)
  • Rated short current : 10kA
  • Accessory : AX, AL, SHT, UVT
① Standard
U UL489
blank UL1077
② Pole
1P 1 Pole
2P 2 Pole
3P 3 Pole
4P 4 Pole
③ Type
B B-Type
C C-Type
D D-Type
K K-Type
④ Ampere
1A 1 Ampere
2A 2 Ampere
3A 3 Ampere
4A 4 Ampere
5A 5 Ampere
6A 6 Ampere
8A 8 Ampere
10A 10 Ampere
15A 15 Ampere
16A 16 Ampere
20A 20 Ampere
25A 25 Ampere
30A 30 Ampere
32A 32 Ampere
40A 40 Ampere
50A 50 Ampere
63A 63 Ampere
KA
6kA 6KA
10kA 10KA
⑥ Rated voltage
120/240VAC 120/240VAC
240VAC 240VAC
277VAC 277VAC
480Y/277VAC 480Y/277VAC
⑦ Standard
UL489 UL489
UL1077 UL1077
   
GENERAL INFORMATION for BK63HU UL489 MCB
Standard UL489, UL486E(Lug)
Protection Overload, Short circuit
Rated current 1, 2, 3, 4, 5, 6, 8, 10 ,15, 16, 20 ,25, 30, 32, 40, 50, 63A
Number of poles 1P, 2P, 3P
Rated short circuit capacity AC DC
1P : 10kA@120/240VAC, 10kA@277VAC (1~25A) 10kA@120/240VAC(30~63A) 2P, 3P : 10kA@240VAC, 480Y/277VAC(1~25A) 10kA@240VAC(30~63A) 1P : 10kA@60VDC 2P, 3P : 10kA@125VDC
Rated frequency 50/60 Hz
Reference temperature 40℃
Normal ambient temperature -5 ~ 40℃
Tripping curve B, C, D, K curve
Trip type Thermal magnetic
Type of terminals Terminal with stirrup(indirect pressure)
Terminal size acceptability – Min/Max 14 / 4AWG
Tightening Torque 3.9 Nm (35 Ibf-in)
Installation Mounting on 35mm din rail
Dimension of specimen (W×H×D) 18×105×66 (1P)
Protection degree IP20
Accessory AX-HU, AL-HU, SHT-HU, UVT-HU
Relative humidity 45~85%RH
Electrical Endurance 6,000
Maximum switching frequency (Time/h) 360/h
Approvals UL, CB, ABS
GENERAL INFORMATION for BK63H UL1077 MCB
Standard UL 1077
Protection Overload, Short circuit
Rated current 1, 2, 3, 4, 5, 6, 8, 10 ,15, 16, 20 ,25, 30, 32, 40, 50, 63A
Number of poles 1P, 2P, 3P, 4P
Rated short circuit capacity AC DC
1P : 10kA@120/240VAC 6kA@277VAC 2P~4P : 10kA@120/240VAC 6kA@480Y/277VAC 1P : 10kA@60VDC 2P~4P : 10kA@125VDC
Rated frequency 50/60 Hz
Reference temperature 40℃
Normal ambient temperature -5 ~ 40℃
Tripping curve B, C, D Curve
Trip type Thermal magnetic
Type of terminals Terminal with stirrup(indirect pressure)
Terminal size acceptability – Min/Max 14 / 4AWG
Tightening Torque 2Nm (17.5 lbf-in)
Installation Mounting on 35mm din rail
Dimension of specimen (W×H×D) 18×81×66 (1P)
Protection degree IP20
Accessory AX-H, AL-H, SHT-H, UVT-H
Relative humidity 45~85%RH
Electrical Endurance 6,000
Maximum switching frequency (Time/h) 360/h
Approvals UL, CB, ABS
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