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Home > Products > Up to 1.5KV Accessories > Molded Case Circuit Breaker > EBM1-400L Molded Case Circuit Breaker (MCCB) 3300 IN 400A

EBM1-400L Molded Case Circuit Breaker (MCCB) 3300 IN 400A

    EBM1-400L Molded Case Circuit Breaker (MCCB) 3300 IN 400A

    The EBM1 Series Molded Case Circuit Breaker (MCCB) from Eberry Electric is a newly developed product designed with advanced international technology.It features a compact structure, high breaking capacity, short arc distance, and excellent vibration resistance, making it an ideal choice for both land-based and marine applications.With a rated insulation voltage of 800V (500V for EBM1-400), this MCCB is suitable for AC 50Hz/60Hz power distribution networks with rated working voltage up to 690V and rated current up to 1250A.It provides reliable protection for circuits an...
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The EBM1 Series Molded Case Circuit Breaker (MCCB) from Eberry Electric is a newly developed product designed with advanced international technology.
It features a compact structure, high breaking capacity, short arc distance, and excellent vibration resistance, making it an ideal choice for both land-based and marine applications.


With a rated insulation voltage of 800V (500V for EBM1-400), this MCCB is suitable for AC 50Hz/60Hz power distribution networks with rated working voltage up to 690V and rated current up to 1250A.
It provides reliable protection for circuits and electrical equipment against overload, short circuit, undervoltage, and other system faults.


Additionally, the EBM1 MCCB can be used for infrequent switching of circuits and occasional motor starting under normal conditions, offering both distribution and protection functions in one device.


The breaker supports installation in both vertical (upright) and horizontal (transverse) positions.
It is also suitable for isolation applications, complying with the isolation symbol "⏚".


The EBM1 Molded Case Circuit Breaker conforms fully to IEC 60947-2: Low-voltage switchgear and controlgear – Part 2: Circuit breakers, ensuring high reliability and international compatibility.


Model and meaning


Note:

According to the pole, it classifies four types:

Type A: N-pole without over-current release components, and N-pole has been connected all along, and does not act with other three poles to turn on or off;

B-type: N-pole without over-current release components, and N-pole could act with other three poles (N-pole turn-on prior to turn-off);

Type C: N-pole fixed with over-current release components, and N-pole could act with other three poles (N-pole turn-on prior to turn-off);

D-type: N-pole fixed with over-current release components, and N-pole has been connected all along, and does not act with other three poles to turn on or off.

Circuit breaker for distribution without code, circuit breaker for motor protection with 2

No code for direct operation with handle; P for electric operation; Z for turning handle.


Classification according to rated current of over-current release:

M1-63 MCCB has nine: 6, 10, 16, 20, 25, 32, 40, 50, 63 A;

M1-100 MCCB has nine: 16, 20, 25, 32, 40, 50, 63, 80, 100 A;

M1-225 MCCB has seven: 100, 125, 140, 160, 180, 200, 225 A;

M1-400 MCCB has five: 225, 250, 315, 350, 400 A;

M1-630 MCCB has three: 400, 500, 630 A;

M1-800 MCCB has three: 630, 700, 800A;

M1-1250 MCCB has three: 800, 1000, 1250A.

Note: 6A only has electromagnetic (instantaneous) type, is not recommended specifications.

According to the wiring method: wiring in front of board, wiring on back of board, insertion type of the board.

According to over-current release pattern: thermodynamic-electromagnetic (double) type, electromagnetic (instantaneous) type.

According to the outfit, it has two types: with or without outfit.

The outfit include inner accessories and outside accessories: The inner accessories have shunt release, under-voltage release, auxiliary contact and alarm contact. The outside accessories are turning handle operation mechanism, power-driven operation mechanism and so on.

According to the breaking capacity: L-standard breaking type; M-second high breaking type; H-high breaking type


Normal operating conditions

■ Ambient air temperature: -5℃~+40℃, and average temperature in 24h is below +35℃.

■ Altitude: The altitude of the installation site is not more than 2000m.

■ Atmospheric conditions: The air relative humidity in the highest temperature +40℃ is not more than 50%; In the low temperature can have higher relative humidity. The maximum average relative humidity is 90%, while the average monthly minimum temperature is +25℃, and consider the temperature changes in product on the surface of the gel.

■ Pollution Degree: 3.


Main technical parameters


Trip mode and accessory code, flashover distance contains horizontal and vertical installation.

Accessory name

Accessory code

Accessory installation and lead mode


Instant

aneous

release

Double

release

63A, 100A

63A, 100A, 225A, 400A

630A

800A

1250A


2-poles

3-poles

4-poles

3-poles

4-poles

3-poles

3-poles

Without accessory

200

300

Alarm contact

208

308

——

Shunt release

210

310

Pre-paid meter

dedicated release

210Y

310Y

Auxiliary contact

220

320

Undervoltage release

230

330

Shunt release

240

340

——

Auxiliary contact

240Y

340Y

Shunt release

250

350

——

——

——

——

Undervoltage release

250Y

350Y

Two sets of

auxiliary contacts

260

360

——

Auxiliary contact,

Undervoltage release

270

370

——

Shunt release

218

318

——

——

——

——

Alarm contact

218Y

318Y

Auxiliary contact,

Alarm contact

228

328

——

——

Undervoltage release,

Alarm contact

238

338

——

——

——

——

Shunt release,

Auxiliary contact

248

348

——

——

——

——

Alarm contact

248Y

348Y

Shunt release,

Undervoltage release,

Alarm contact

258

358

——

——

——

——

——

Two sets of auxiliary

contacts, Alarm contact

268

368

——

——

Auxiliary contact,

Undervoltage release,

Alarm contact

278

378

——





A. 200 means circuit-breaker with electromagnetic release; 300 means thermodynamic+electromagnetic release; and 000 means circuit-breaker without release and internal accessory.

B. 125, 250, 400, 2-pole products only have 210, 220, 230, 310, 320, 330.

C. Only M1-63, M1-100, M1-225, M1-400 with pre-paid meter dedicated release.


Main technical index

1, Instantaneous action characteristic setting value of the circuit breaker for distribution is 10In±20%, M1-1250 is 7In±20%; Instantaneous action characteristic set value of the circuit breaker for motor protection is 12In ± 20%.

2, The rated value of the circuit breaker in Table 2.

3, In the ambient temperature of +40℃, the circuit breaker for distribution over-current release action characteristics shown in Table 3, the circuit breaker for motor protection over-current release action characteristics shown in Table 4.


Rated value of the circuit break

Model

Pole

Rated current (A)

Rated

operating

voltage (V)

Rated

insulation

voltage (V)

Rated ultimate short - circuit breaking capacity (Icu)

Flashover

distance(mm)

Test voltage (V)

Icu (kA)

Ics (kA)

M1-63L

3

10、16、20、25、

32、40、50、63

400

500

400×1.10

25

18

0

M1-63M

3、4

50

35

M1-100L

3、4

16、20、25、32、40、

50、63、80、100

400

800

30

22

≤50

M1-100M

2、3、4

50

35

M1-100H

3

85

50

M1-100L

3、4

690

10

5

M1-100M

2、3、4

20

10

M1-225L

3、4

100、125、140、

160、180、200、225

400

800

35

25

M1-225M

2、3、4

50

35

M1-225H

3

85

50

M1-225L

3、4

690

10

5

M1-225M

2、3、4

20

10

M1-400L

3

225、250、315、

350、400

400

800

50

35

≤100

M1-400M

3、4

65

42

M1-400H

3

100

65

M1-400L

3

690

15

8

M1-400M

3、4

20

10

M1-630L

3

400、500、630

400

800

50

35

M1-630M

3、4

65

42

M1-630H

3

100

65

M1-630L

3

6910

15

8

M1-630M

3、4

20

10

M1-800M

3

630、700、800

400

800

75

50

M1-800H

3

100

65

M1-800M

3

4690

30

15

M1-1250

3

800、1000、1250

400

800

85

42

M1-1250

3

690

25

12.5

Note: 2-poles, 4-poles circuit breakers, divided into L, M, H, they have the same breaking index as M-type.


Characteristics of inverse time breaking action of circuit breakers over-current release for power distribution when every pole is power-on at the same time

No.

Test current

I/In

Set time

Initial state

1

Conventional non-tripping current

1.05

2h(In>63A),1h(In≤63A)

Cold

2

Conventional non-tripping current

1.30

2h(In>63A),1h(In≤63A)

Immediately after Test 1


Instantaneous action characteristic setting value of the circuit breaker for distribution is 10In±20%, and instantaneous action characteristic setting value of the circuit breaker for motor protection is 12In±20%.


Characteristics of inverse time breaking action of circuit breakers over-current release for motor protection when every pole is power-on at the same time

No.

I/In

Set time

Initial state

Remark

1

1.0

>2h

Cold

 

2

1.2

≤2h

Immediately after Test 1

 

3

1.5

≤4min

Cold

10≤n≤225

≤8min

225 < in ≤ 630

4

7.2

4s≤T≤10s

Cold

10≤In≤225

6s≤T≤20s

225 < in ≤ 630


Inverse time protection characteristic curve

Derating factors table of temperature changes

Model/Coefficient/Temperature

+40℃

+45℃

+50℃

+55℃

+60℃

M1-63

1

0.94

0.88

0.80

0.72

M1-100

1

0.95

0.89

0.84

0.76

M1-225

1

0.96

0.91

0.87

0.82

M1-400

1

0.94

0.84

0.80

0.73

M1-630

1

0.93

0.88

0.83

0.76

M1-800

1

0.93

0.88

0.83

0.76

M1-1250

1

0.88

0.83

0.79

0.76


Outline and installation dimensions

imension of wiring in front of the board


Dimension of wiring on back of the board


Dimension of plug-in wiring


Dimension of wiring in front of the board


Model

H

H1

H2

M1-225L/2P

104

127

24

M1-225L/3P

86

110

24

M1-225M/3P

103

127

24

M1-225H/3P

103

127

24

M1-225M/4P

103

127

24

M1-225H/4P

103

127

24


Dimension of wiring on back of the board


Dimension of plug-in wiring


Dimension of wiring in front of the board


Model

H

H1

H2

M1-400L/3P

-

-

-

M1-400M/3P

-

-

-

M1-400H/3P

-

-

-

M1-400L/4P

-

-

-

M1-400M/4P

-

-

-

M1-400H/4P

-

-

-


Dimension of wiring on back of the board


Dimension of plug-in wiring


Dimension of wiring in front of the board


Model

H

H1

H2

M1-630M/3P

-

-

-

M1-630H/3P

-

-

-

M1-630M/4P

-

-

-

M1-630H/4P

-

-

-


Dimension of wiring on back of the board


Dimension of plug-in wiring


Dimension of wiring in front of the board


Model

H

H1

H2

M1-800H/3P

-

-

-

M1-800H/4P

-

-

-


Dimension of wiring on back of the board


Dimension of plug-in wiring


Dimension of wiring in front of the board


Accessories of circuit breakers

1.Internal accessory of circuit breakers

1.1 Shunt release

Rated control supply voltage of the shunt release: AC50Hz, 230V, 400; DC110V, 220V, 24V; When between 70%~110%, can break the circuit breaker reliably.

When rated control supply voltage of the shunt release is DC24V, the maximum length of copper wire should meet the following requirements

Rated control

supply voltage Uc(DC24V)/Conductor area

1.5mm²

2.5mm²

100%Uc

85%Uc

150m

100m

250m

160m

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Address: 66 Punan Road, Yueqing Economic Development Zone, Zhejiang, China

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