OPEN ELECTRIC CO.,LTD.

Open Electric Co.,Ltd.

Products

Electrical Distribution (178)
Industrial Control (517)
Power Management (534)

Search Catalog

You are here: Home >> Products >> MCCB >> OM1 MCCB

OM1 MCCB

OM1 MCCB
catalogue download Catalogue Download
print this page Print This Page
bookmark this page Bookmark This Page
tell a friend
live messenger Live Messenger
skype me Skype Me
e-mail us sales@opengroup.cc
Add to Basket Inquiry Basket

1. Application
OM1 series moulded case circuit breaker is one of products developed and manufactured byadopting international advanced technology. It is supplied with rated insulating voltage 800Vand used for circuit of A.C. 50Hz, rated operating voltage AC 400V (or below), rated operatingcurrent up to 800A for infrequent changing over and starting of the motors.The products con-forms to IEC60947-2 standard.

2. Main Technical Specification(table1)
Type
Rated
current (A)
Polenum-ber
Ratedinsui-atingvolt-age(V)
Rated
operat-ingvolt-age(V)
Arcing-
over
distance
(mm)
Ultimate
short
circuit
breaking
capacity
(KA)
Servies
short
circuit
breaking
capacity
(KA)
Operation
perform-
ance
Utiliza-tioncat-egory
Load
Unload
OM1-63L
(6),10
16,20
25 ,32
40,50
63
3, 4
500V
400V
0
25
18
1500
8500
A
OM1-63M
0
50
35
OM1-100L
(10),16
20,25
32,40
50,63
80,100
800V
0(≤50)
35
22
OM1-100M
0(≤50)
50
35
OM1-100H
0(≤50)
85
50
1000
7000
OM1-225L
100,125
160,180
200,225
≤50
35
22
OM1-225M
≤50
50
35
OM1-225H
≤50
85
50
1000
4000
OM1-400L
225,250
315,350
400
≤50
50
35
OM1-400M
≤100
65
42
OM1-630L
400,500
630
≤100
50
35
OM1-630M
≤100
65
42
OM1-630H
≤100
100
65
OM1-800M
630,700
800
3
≤100
75
50
OM1-800H
≤100
100
65
OM1-1250M
1000,1250
≤100
100
65
OM1-1250H
≤100
125
5


Note: 6A no thermal protection The N-pole of four-poles breaker is sifed at the right side of the product has four types: Type A: No current trip-lease on N pole which making all the time, not closing and opening with the otherthree poles. Type B: No current trip-release on N pole which closing and opening with the other poles. Type C: With current trip-release which closing and opening with the other three poles. Type D: With current frip-release which making all the time not closing and opening with the other threepoles.

3. Protection Characteristic
The thermodynamic release of a circuit breaker provides the feature of inverse time-delay,while the magnetic release is the instantaneous operation as shown on table 2(distribution cir-cuit breaker) and table 3 (motor protection circuit breaker).



Table2
Rated current ofrelease (A)
Thermodynamic release( ambient temp )
Operationalcurrent ofmagneticrelease (A)
1.05In(cold state)
Inoperative time(h)
1.30In(heat state)
Operative time(h)
10≤In≤63
≥1
< 1
10In±20%
225≤In≤630
≥2
< 2
100≤In≤800
≥2
< 2
5In±20%

Table3
Rated current ofrelease (A)
Thermodynamic release( ambient temp )
Operationalcurrent ofmagneticrelease (A)
1.0In(cold state)
Inoperative time(h)
1.20In(heat state)
Operative time (h)
1.50In(heat state)
Operative time (h)
7.2In(cold state)
Operative time(h)
10≤In≤225
≥2
<2
≤4min
≤8min
4s< Tp ≤10s
6s< Tp ≤20s
12In±20%
225≤In≤630


4. Accessories of Circuit breaker
4.1 The external accessories of the breaker
Motor-driven operation device
1) Wiring diagram of type CDM electromagnetic operation device(fitting OM1-63,100,225) seethe following drawing (wiring diagram of the external accessories of the breaker in the dottedframe)



Code description: SB1 SB2 stand for push button.(provided by users themselves) Number "1" "2" "3" stand for number of wiring terminals.
Voltage rating: AC50Hz 230V 400V DC 220V
2) Wiring diagram of type CD motor-driven operation device (fitting OM1-400 630 800) seebelows (wiring diagram of the external accessories of the breaker in the dotted frame)


Code description: SB1 SB2 stand for push button. (provided by users themselves) "X" stands for line connection terminals
Voltage rating: AC50Hz 230V 400V DC 220V



Rotary handle operation device
The mechanism is used in moulded case circuit breaker to operate the draw-out panel. Powerdistribution panel and supply box outside the panel by turning the handle ,and to ensure thedoor of panel would not be openned when the breaker being on. The hand-drive mechanism can be equiped with two types of operation, one is "A" modelsquare handle , the other is "B" model round handle.


4.2 Release pattern and accessories code

SHT: Shunt release; UVR: Under-voltage release;AX: Auxiliary contact; AL: Alarm contact
Release patternand accessories code
Name/Type
OM1-63,
100, 225
OM1-400
OM1-630
OM1-800
200, 300
No accessories
200: magnetic release (only short circuit protection)300: thermal magnetic release(both overload and short circuit protection)
208, 308
Alarm contact
210, 310
Shunt release
220, 320
Auxiliary contact
230, 330
Under-voltage release
240, 340
Shunt release
Auxiliary contact
250, 350
Shunt release
Under-voltage release
260, 360
Two group of auxiliary contact
270,370
Under-voltage release
Auxiliary contact
218, 318
Shunt release
Alarm contact
228, 328
Alarm contact Auxiliary contact
238, 338
Under-voltage releaseAlarm contact
248, 348
Shunt release, Alarm contact,Auxiliary contact
268, 368
Two group of auxiliary contact,Alarm contact
278, 378
Shunt release, Alarm contact, Under-voltage release

According to user's demands, accessories could lead to direct wire outcoming or line wiringterminals could be added(please mark out in case of making order).

Under-voltage release
Wring diagram of the under-voltage module connected externally (the internal accessories inthe dotted frame)Ue: AC50Hz 230V, 400V

 


When the operation voltage is 35%~70% of the rated voltage, the under-voltage release shouldmake the breaker trip correctly.When the operation voltage is 85%~110% of the rated voltage, the under-voltage release shouldmake the breaker close.In case of the operation voltage less than 35% of the rated voltage, the under-voltage shouldprevent the breaker from closing.Note: Only the under-voltage release should be energized in advanced, the breaker could berecramped and turned-on, otherwise the breaker will be damaged.


Shunt release
Scheme of wiring(the internal accessories in the dotted frame)"K" is the slow motion switch normal-close contact connect the coil in series in the shunt release.It turns-on or turns-off voluntarily as soon as the breaker on or off.

Voltage rating: AC50Hz 230V or 400V, DC 110V 220VThe shunt release should make the breaker trip reliably when the operation voltage is 70%~110%of the rated control voltage.


Alarm contact
The position of the breaker in "off" or "on"
The position of the breaker in "free trip" (alarm)
B11 and B12 switch from "close" to "open", statusof B11 and B14 switch from "open" to "close"
 
Auxiliary Contact
When the breaker is in"off"
For the breaker with frame current400A and above
For the breaker with frame current225A and below
When the breaker is in"on"
When the breaker is in "off", the contacts switch from "close" to "open".When the breaker is in "off",the contacts switch from "open"to close"
MCCB :: RCBO :: Residual Current Circuit Breaker :: Air Circuit Breaker :: Distribution Box :: Surge Protective Device :: Moulded Case Circuit Breaker
OPEN Electrical Technology Co., Ltd All Rights Reserved | Sitemap