BM Circuit Breaker for Equipment

3.1 Operation temperature: -40℃~+85℃
3.2 Altitude: ≤2000m
3.3 Humidity: ≤95%
3.4 Service place without explosive media, gas and dust which are corrosive and conductive.
3.5 Be mounted free from rain and snow.

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SPECIFICATIONS

Circuit Breaker BM series

Application
BM series circuit breaker for equipment (hydraulic-magnetic circuit breaker) is used in the power system with rated current from 0.1A to 30A, rated voltage up to AC250V (50/60Hz) or DC80V. It provides overload, short circuit protection. It can also be used for infrequent close or open. The application fields are computer and peripheral equipment, industrial automatic control system, telecom equipment, power supply system, UPS, railroad, marine, spacecraft, elevator, portable power supply and so on.

Specification
2.1 Standards: IEC 60934, GB 17701, UL1077, UL489A
2.2 Rated working voltage: AC240V, AC250V (50/60Hz), DC80V
2.3 Power Frequency Withstand Voltage: 2500V (The withstand voltage of products using in altitude of 4000m is tested under 2500V*1.29 at sea level in the factory.)
2.4 Mechanical/Electrical endurance: 10000/6000, (UL489A approved at electrical endurance: 1000)
2.5 Tripping model: Hydraulic-magnetic type
2.6 Trip-free behaviour: Total trip-free
2.7 Auxiliary contact: 3(0.5)A250V/125VAC、3A 30VDC,Auxiliary terminal surface: Silver Plate, contact material: silver plated Ag/Ni 90/10, Please refer to the chart below, use switch within using region

2.8 Rated breaking capacity:

Rated voltage

(V)

Rated current

(A)

Number of poles

Breaking capacity (A)

TUV, CE, CCC

UL1077

UL489A

Icn

Inc

DC80

0.5-30

1,2

1000

1500

1000 U2

1000

AC250

0.5-30

1,2

1000

1500

/

/

AC120/240

0.5-30

1,2

/

/

1000

/

Notice::UL1077 (DC80V)

Type

UG

FW

TC

OL

SC

OC

A, B, C, D

0

1

0

1 kA, U1

2.9 Resistance, Impedance

CURRENT(A)

TOLERANCE(%)

0.5~20

±25%

20.1~30

±35%

Tripping characteristic
4.1 Tripping timetable (in seconds)

Current

Curves

100%

135%

150%

200%

300%

400%

600%

1000%

DI/AI

No trip

/

0.1MAX

0.1MAX

0.1MAX

0.1MAX

0.1MAX

0.1MAX

DS/YS/AS/LS

No trip

0.3~7

0.2~5

0.1~2

0.004~1

0.03~0.5

0.008~0.3

0.005~0.1

DM/YM/AM/LM

No trip

3~70

2~40

1~15

0.3~10

0.1~4

0.008~2

0.005~0.35

4.2 Tripping curves


Model and Implication

No.

Series

BM

1

Product code

B:Hydraulic electromagnetic circuit breaker

2

Series Code

M:Maximum 30A

3

Circuit

A:Series current trip S:Switch Only

4

Actuator code

R: Rocker

5

Number of poles

1: One-pole 2: Two-pole

6

Tripping curve

DI: DC Instantaneous DS:DC Short DM: DC Medium

YS: DC Short Hi-Inrush YM: DC Medium Hi-Inrush

AI: AC Instantaneous AS:AC Short AM: DC Medium

LS: AC Short Hi-Inrush LM: AC Medium Hi-Inrush

7

Rated current (A)

0.5~30

8

Mounting method

NO or Q:Snap-in mounting

9

Wiring method

NO or H:Solder-in/ Q.C. tab type B: Push-in stud wiring P:M4 Screw type wiring

E: 8-32UNC Screw type wiring J: 8-32UNC Screw wiring with upturned lugs

R:M4 Screw wiring with upturned lugs

10

Actuator colors and printing code

Actuator colors

I-O

ON-OFF

Dual

Printing color

White

A

B

1

Black

Black

C

D

2

White

Red

F

G

3

White

Green

H

J

4

White

Blue

K

L

5

White

Yellow

M

N

6

Black

Gray

P

Q

7

Black

Orange

R

S

8

Black

11

Indicate Direction

With current rating at shell : 1: Vertical 2: Horizontal

With current rating at actuator: 3:Vertical 4: Horizontal

12

Shell color and style

Shell Color

Without Rocker guard

With Rocker guard

Black

B

2

Gray

G

7

13

Accessory code

0:No Accessories 1: Auxiliary Switch

14

Certificate code

C: TUV, CE, CCC R: UL1077, TUV, CE, CCC L :UL489A listed, TUV, CE, CCC

15

Client code

XXXXX 5 or more numbers or letters, different customers with special needs, but does not affect the product certification Using the client code; you can omit the seventh behind the content.

Circuit diagram

Dimensions
7.1 Rocker Outline dimensions(Tolerance ±0.02in[.51mm] Unless noted)
7.1.1 Single-pole product with guard

7.1.2 Two-pole product with guard

7.1.3 Rocker product without guard(Dimensions also apply to double pole)

7.2 Panel cutout detail

7.3 Wiring method and dimension(Tolerance ±0.02in[.51mm] Unless noted)

Solder-in /Q.C. tab type Screw type Screw with upturned lugs Push-in stud

Notice:Recommended tightening torque 1.2N.m

7.4 Auxiliary Switch Outline dimensions (PCB terminal)

7.5 Auxiliary Switch Outline dimensions (Solder terminal)

7.6 Circuit diagram

Packing and depositing
The products should be stored in the warehouse where there is ventilation. The relative humidity there should not exceed 80%, and the ambient temperature there is between -25℃ to +60℃. In addition, there should not be acidic, alkaline and corrosive gas in the air. The products should not be deposited more than 3 years in the above mentioned conditions since the producing date

Notices
9.1 Do not disassemble the breaker privately.
9.2 Attention to live part when the breaker is energized and avoid touching them.
9.3 Please make sure reliable connection to avoid fault tripping or damage of terminal caused by exceptional heat resulting from unsuitable connection.

 

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