HM1 Moulded Case Circuit Breaker
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Application
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HM1 Series of moulded case circuit breaker is one of our new type products developed and manufactured by adopting international advanced technology. It is supplied with rated insulating voltage 660V and used for circuit of A.C.50Hz, rated
operating voltage AC 380V. (Or below), rated operating current up to 800A for infrequent changing over and starting of the motors. Equipped with the protection devices for over-current, short circuit and under voltage, the products are capable
of preventing damage of circuits and supply units.
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Classification
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Accord to product poles. Two kings of three-pole are provided The neutral pole(N pole) of four poles has four types
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Specifications
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Type
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Rated current
of trip (In A)
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Pole
number
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Rated insulating
voltage (V)
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Rated operating
distance (mm)
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Arcing-over
distance (mm)
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Uitimate short
circuit breakering
capacity (kA)
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Short
circuit breaking
capacity (kA)
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Operation
performance
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| ON |
OFF
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HM1-63L
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6,10,16,20,
25,32,40,
50,63
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3P
4P
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660V |
380V
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0 |
25
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18
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1000
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8500
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HM1-63M
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0 |
50
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35
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HM1-100C
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0 |
25
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18
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HM1-100L
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10,16,20,25
32,40,50,63
80,100
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0(≤50)
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35
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22
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HM1-100M
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0(≤50)
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50
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35
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HM1-100H
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0(≤50)
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85
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50
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HM1-225C
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100,125,160
180,200,225
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≤50
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25
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18
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1000
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7000
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HM1-225L
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≤50
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35
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22
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HM1-225M
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≤50
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50
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35
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HM1-225H
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≤50
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85
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50
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HM1-400C
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225,250,315
350,400
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≤50
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35
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25
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1000
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4000
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HM1-400L
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≤50
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50
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35
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HM1-400M
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≤100
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65
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42
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HM1-630C
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≤100
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35
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25
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HM1-630L
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400,500,600
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≤100
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50
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35
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HM1-630M
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≤100
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65
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42
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HM1-630H
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≤100
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100
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65
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HM1-800M
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630,700,800
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≤100
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65
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42
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HM1-800H
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≤100
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100
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65
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Protection Characteristics
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The thermodynamic release of a circuit breaker provides the feature of inverse time delay, while the magnetic release is the instantaneous operation as show on table 2 (distribution circuit-breaker) and table 3 (motor protection circuit breakers).
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Working Conditions
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Rated current
of release(A)
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Thermodynamic release(ambient temp
1and+40℃
marine+45℃
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Operational current of
magnetic release(A)
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| 1.05In(cold state)inoperation time(h) |
1.30In(heat state) operative time(h)
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10≤In≤63
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≥1
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< 1
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10In±20%
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63≤In≤100
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≥2
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< 2
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100≤In≤630
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≥2
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< 2
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10In±20%、5-10In±20%
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