FEM1 IEC60947-2 AC 63A-800A 2000m AC Circuit Breaker
FEM1 series moulded case circuit breaker is a new type product
developed
and manufactured by Adopting international advanced technology.
It is supplied with rated insulation voltage 800V and used for
circuit of AC 50Hz,
rated operation voltage AC 400V or below rated operation current up
to 1600A
for infrequent changing over and starting of the motors.
Equipped with the protection devices for over-current, short
circuit and under voltage,
the product is capable of preventing damage of circuits and supply
units.
The product conforms to IEC60947-2 standard
Working Condition
• Not over altitude 2000m
• Ambient temperature is between -5℃ to+40℃
• Withstand the influence of moist air
• Withstand the influence of smoke fog,salt mist
• Withstand the influence of fungus
• The max. gradient is 22.5℃
• Working reliable under the condition of normal vibration in ship
• Working reliable under the condition of earth quake(4g)
• Working in the medium which not any explosive, no enough
dielectric to corrode metal, no gas
to damage insulation and elctric conduction dust
• Working in the place would not be invaded by rain and snow
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According to the pole number of products,it classifies
two-pole(100A, 225A), three-pole(no four-pole for FEM1-800), the
neutral pole(N-pole) of the four-pole breakers has four types;
TypeA: N-pole without over-current release unit, it has been
connected all along, and does not act with other three-pole to turn
on or off.
Type B: N-pole without over-current release unit, it could act with
other three-pole;
Type C: N-pole fixed with over-current release unit, it could act
with other three-pole;
Type D: N-pole fixed with over-current release unit, it has been
connected all along, and does not act with other three-pole to turn
on and off
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According to rated current of products, it classififies:
FEM1-63: (6),10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A, (no over-load
protection for 6A);
FEM1-125: (10), 10A,16A, 20A, 25A, 32A, 40A, 50A, 63A, 80A,100A,
125A;
FEM1-250: 100A, 125A, 140A, 160A,180A, 200A, 225A, 250A;
FEM1-400: 225A, 250A, 315A, 350A, 400A;
FEM1-630: 400A, 500A, 630A;
FEM1-800: 630A, 700A, 800A;
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According to connection mode, it classifies front in wiring,rear in
wiring, and plug in type
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According to over-current release type, it classifies the
thermodynamic-magnetic (binary) type
and magnetic (instantaneous) releases
Protective Characteristics
The thermodynamic of a circuit breaker provides the feature of
inverse time-delay,while the magnetic release the instantaneous
operation as shown on Table 1 (distribution circuit breaker)and
Table 2 (motor protection circuit breaker):
Table 1(for distribution)
| Rated current of release (A) | Thermodynamic release(ambient temp:land +40℃,marin +45℃) | Electromagnetic release action current(A) |
| 1.05In(cold state)non-action time(h) | 1.30In(hot state)action time(h) |
| 10≤In≤63 | 1 | 1 | 10In±20% |
| 63≤In≤100 | 2 | 2 |
| 100≤In≤800 | 2 | 2 | 5In±20% 10In±20% |
Table 2(for protective motor)
| Rated current of release(A) | Thermodynamic release(ambient temp:land+40℃,marin+45℃) | Electromagnetic release action current(A) |
| 1.0In(cold state)non-action time(h) | 1.2In(hot state)action-time(h) | 1.5In(hot state)action-time | 7.2In(cold state)non-action time |
| 10≤In≤255 | 2 | 2 | 4min | 4s＜t≤10s | 12In±20% |
| 255≤In≤800 | 8min | 6s＜t≤20s |
Current correction values used at different ambient temperatures
| Model | Rated frame current (A) | Rated current (A) | Rated working voltage(V) | Rated insulated voltage(V) | Rated ultimate short-circuit breaking capacity KA 400V | Rated running breaking capacity KA 400V | Overrall Dimension | Mounting dimension(front in wiring) |
| L | W 3P/4P | H | A | B | 4-φd |
| FEM1-63L | 63 | 6,10,16,20,25,32,40,50,63 | AC400V | AC500V | 25 | 18 | 135 | 78 | 73.5 | 25 | 117 | φ3.5 |
| FEM1-63M | 50 | 35 | 135 | 78/103 | 81.5 |
| FEM1-125L | 125 | 10,16,20,25,32,40,50,63,80,100,125 | AC690V | AC800V | 35 | 22 | 150 | 92 | 68 | 30 | 129 | φ4.5 |
| FEM1-125M | 50 | 35 | 150 | 92/122 | 86 |
| FEM1-125H | 85 | 50 |
| FEM1-250L | 250 | 100,125,140,160,180,200,225,250 | AC690V | AC800V | 35 | 22 | 165 | 107 | 86 | 35 | 12 | φ4.5 |
| FEM1-250M | 50 | 35 | 165 | 107/142 | 103 |
| FEM1-250H | 85 | 50 |
| FEM1-400L | 400 | 225,250,315,350,400 | AC690V | AC800V | 50 | 35 | 257 | 150/198 | 105 | 44 | 194 | φ7 |
| FEM1-400M | 65 | 42 | 257 | 150 | 106.5 |
| FEM1-400H | 100 | 65 |
| FEM1-630L | 630 | 400,500,630 | AC690V | AC800V | 50 | 35 | 270 | 182/240 | 110 | 58 | 200 | φ7 |
| FEM1-630M | 65 | 42 | 270 | 182 | 110 |
| FEM1-630H | 100 | 65 | 275 | 210 | 115.5 | 70 | 243 | φ7 |
| FEM1-800M | 800 | 630,700,800 | AC690V | AC800V | 75 | 50 | 275 | 210 | 115.5 | 70 | 243 | φ7 |
| FEM1-800H | 100 | 65 |
See Table 4 for sectional area of connecting conductor and the
proper rated current:
| Rated current value | 10 | 16,20 | 25 | 32 | 40,50 | 63 | 80 | 100 | 125 | 160 | 180,220,225 | 250 | 315,350 | 400 |
| Cable(mm2) | 1.5 | 2.5 | 4 | 6 | 10 | 16 | 25 | 35 | 50 | 70 | 95 | 120 | 185 | 240 |
Table 5
| Rated current value | Cable | Copper Row |
| cable(mm2) | Quantitly | Dimension(mm) | Quantitly |
| 500 | 150 | 2 | 30 x 5 | 2 |
| 630 | 185 | 2 | 40 x 5 | 2 |
| 700,800 | 200 | 2 | 40 x 5 | 2 |
