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The rated limit short circuit breaking capacity (ka) is 400v/690v 50/10
The rated running short circuit breaking capacity (ka) is 400v/690v 25/5
Maintainable mechanical life (times) 20000
Electrical life AC400V (times) 3000
Number of poles 2 3 4
Flying arc distance (mm) ≤50
Chint nm1-125h/2300 125a 100 a 63 a 50 a 40 a 80 a 2-line air switch molded case circuit breaker
The rated isolation voltage of the circuit breaker is 800 V (500V for Type 63), which is suitable for AC 50Hz
and rated working voltage
To 690 v (400V for type 63) and rated working current from 10A to 1250A, it is used to distribute electric
energy and protect lines and power equipment from overload, short circuit, undervoltage and other faults.
At the same time, it can also be used as protection for infrequent starting and overload, short circuit
and undervoltage of motor.
The circuit breaker has the characteristics of small size, high breaking and short arcing, and is an ideal
product for users.
Circuit breakers can be installed vertically (i.e. vertically) or horizontally (horizontally).
The product has isolation function.
Type a n pole is not equipped with overcurrent tripping element, and n pole is always on, which is not
closed with other three poles;
B-type N-pole is not equipped with overcurrent tripping element, and N-pole is combined with other three-poles;
(N poles close first and then divide);
In this series, the three-pole products with shell frame grades from 63a to 250A, the four-pole products with
125A and 250a, and the two-pole products with 125A and 250A H have transparent covers, which can observe the
internal operation of the products at any time.
normal working condition
Ambient air temperature
The upper limit of ambient air temperature is+40℃;
The lower limit of ambient air temperature is-5℃;
The average value of ambient air temperature within 24h shall not exceed +35℃.
Elevation: the elevation of the installation site shall not exceed 2000m.
Atmospheric conditions:
The atmospheric relative humidity shall not exceed 50% when the ambient air temperature is +40℃; It can have
higher relative humidity at lower temperature; The monthly average maximum relative humidity in the wettest
month is 90%, and the monthly average minimum temperature in this month is +25℃, taking into account the
condensation on the product surface due to temperature change.
Pollution grade: the pollution grade is Grade 3.
NM1- 125 H P / 3 3 10 2 T 100A
NM1-: Type characteristics NM1 plastic case circuit breaker
125: rated current codes of shell frame level 63A, 125A, 250A, 400A, 630A, 800A and 1250A
H: breaking capacity characteristic code s standard type h higher type r current limiting type
P: operation mode code handle direct operation no code p electric operation z rotating handle operation
/
3. Number of poles 2 poles 3 poles 4 poles
3: name of release 2 electromagnetic release 3 compound release
10: attachment 00 has no attachment
08 alarm contact
10 shunt trip
20 auxiliary contacts
30 Undervoltage Release
40 shunt tripping device,
Auxiliary contact
50 shunt tripping device,
Undervoltage release device
60 Two sets of auxiliary contacts
70 auxiliary contacts,
Undervoltage release device
18 shunt tripping device,
Alarm contact
28 auxiliary contacts,
Alarm contact
38 under-voltage release,
Alarm contact
48 shunt tripping device,
Auxiliary contact,
Alarm contact
78 auxiliary contacts,
Undervoltage release,
Alarm contact
Special for 10Y prepaid meters
release
2: Use No.2 motor protection for power distribution
T: No code transparent cover of conventional products is indicated by "T"
100A: rated current (A) 10, 16, 20, 25, 32, 40, 50, 63, 80, 100, 125, 160, 180, 200, 225, 250, 315, 350, 400, 500, 400
Example: NM1-125SP/33102 indicates NM1 type plastic shell type circuit breaker, with shell frame grade current
of 125A, breaking capacity of standard type, electric operation, 3 poles, compound trip,
With shunt trip for motor protection. Selection, installation and use shall conform to the product instruction
manual or relevant national standards.
Note: The N-pole type of 4P circuit breaker is divided into A-type and B-type, but it is not indicated that the
default is B-type
Chint Circuit Breaker NM1-125H/2300
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