Circuit Breaker>>Mould Case Circuit Breaker>>AM2 Series
1.Application
AM2 series moulded case circuit breaker is one of breaker which adopts international ad-vanced design, manufacture technology to develop. The rated insulating voltage is 750V, suit-able for AC 50Hz(60Hz),rated working voltage 690V or below, rated working current is 12.5A to1250A of circuit and used in distributing electric energy, and non-frequent breaking in the nor-mal conditions , protecting the current& equipment from overload&under voltage, circuit breakerwith rated frame current 400A or below,can be used in mousecage motor's non-frequent start,breaking during working, protecting motor from overload, short circuit&undervoltage,the prod-uct conforms to IEC60947-2 standard.
2.Main Technical Specifications
Type |
Pole number |
Rated insulating voltage(V) |
Rated operating voltage(V) |
Rated ultimate short circuit breaking capacity Icu (KA) at 380/415V |
Rated servies short circuit breaking capacity Ics at 380/415V(KA) |
Operation performance |
|
ON |
OFF |
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AM2-100N |
3, 4 pole |
750 |
690 and below |
25 |
25 |
1500 |
8500 |
AM2-100H |
70 |
70 |
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AM2-100L |
150 |
150 |
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AM2-160N |
36 |
36 |
1000 |
7000 |
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AM2-160H |
70 |
70 |
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AM2-160L |
150 |
150 |
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AM2-250N |
36 |
36 |
1000 |
7000 |
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AM2-250H |
70 |
70 |
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AM2-250L |
150 |
150 |
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AM2-400N |
45 |
45 |
1000 |
4000 |
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AM2-400H |
70 |
70 |
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AM2-400L |
150 |
150 |
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AM2-630N |
45 |
45 |
1000 |
4000 |
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AM2-630H |
70 |
70 |
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AM2-630L |
150 |
150 |
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AM2-1250N |
3 pole |
50 |
37.5 |
1000 |
4000 |
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AM2-1600N |
50 |
37.5 |
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3 Trip units main technical parameter
Thermal magnetic release
Type |
Rated currentIn(A) |
Note |
AM2-100 |
12.5,16,20,25,32,40,50,63,80,100 |
Tadjustable (0.8~1In)M adjustable (5~10In) |
AM2-160 |
16,20,25,32,40,50,63,80,100,125,160 |
|
AM2-250 |
160,180,200,225,250 |
|
AM2-400 |
315,350,400 |
|
AM2-630 |
400,500,630 |
|
AM2-1250 |
800,1000,1250 |
Tadjustable (0.8~1In)M fixed |
AM2-1600 |
1000,1250,1600 |
Electronic release
AM2 22SE: protection of low-voltage distribution networks for AM2-100\160\250
1. Overload protection with adjustable threshold
2. Short-circuit protection with adjustable threshold
3. Load indication : light at 90% of Ir setting threshold;
Flashing at 105% or more of Ir setting threshold
Type |
Rated current In(A) |
Note |
AM2-100 |
40,100 |
Ir=0.4~1×In(adjustable 48 setting) Tripping between 1.05~.3×Ir (IEC60947-2) (Long-time overload protection) Im=2-3-4-5-6-7-8-10×Ir (Short-circuit protection) |
AM2-160 |
40,100,160 |
|
AM2-250 |
40,100,160,250 |
AM2 22ME: protection of motor for AM2-100\160\250
1. Overload protection with adjustable threshold, as defined by IEC60947-4 (2) tripping class 10
2. Short-circuit protection with fixed threshold (13xIr)
3. phase failure protection (tripping time delay between 3.5s-6s)
4. Load indication : dark less than 105% of Ir setting threshold;
Flashing at 105% or more of Ir setting threshold
| Type | Rated current In(A) | Note |
| AM2-100 | 40,50,80,100 | Ir=0.6-0.63-0.67-0.71-0.75-0.80-0.85-0.90 -0.95-1×In |
| AM2-160 | 40,50,80,100,150 | |
| AM2-250 | 40,50,80,100,150,220 |
AM2 23SE: protection of low-voltage distribution networks for AM2-400\630
1. Overload protection with adjustable threshold
2. Short-circuit protection with adjustable threshold
3. Load indication : light at 90% of Ir setting threshold;
Flashing at 105% or more of Ir setting threshold
Type |
Rated current In(A) |
Note |
AM2-400 |
400 |
Ir=0.4~1×In(adjustable 48 setting) Tripping between 1.05~1.3×Ir (IEC60947-2) (Long-time overload protection) Im=2-3-4-5-6-7-8-10×Ir (Short-circuit protection) |
AM2-630 |
630 |
AM2 53UE: protection of low-voltage distribution networks for AM2-400\630
1. Overload protection with adjustable threshold, as defined by IEC60947-2
2. Short-circuit protection with adjustable threshold
3. Instantaneous short-circuit protection
4. Earth fault protection with adjustable threshold
5. Load indication : light at 90% of Ir setting threshold;
Flashing more than Ir setting threshold
6. Fault indication
LEDs indicates the type of fault that caused tripping
Overload (LT protection) or abnormal component temperature (>Ir);
Short-circuit (ST or instantaneous protection)( >Im);
Earth fault (if earth fault protection option is present)(Ig);
Microprocessor malfunction (both (>Ir) and ( >Im) LEDs go on ,plus the (Ig) LEDs if earth fault protection option is present )
Battery powered. Spare battery are supplied in an adapter box. When a fault occurs , the LED indicating the type of fault ,lights for about 10 minutes . The information is however stored in memory . The LED can be illuminated by pressing the test pushbutton. The LED automatically goes off and the memory is cleared when the circuit breaker is reset .
Type |
Rated current In(A) |
Note |
AM2-400 |
400 |
Ir=0.4~1×In(adjustable 48 setting) |
AM2-630 |
630 |
AM2 43ME: protection of motor for AM2-400\630
1. Overload protection with adjustable threshold, as defined by IEC60947-4 (2) tripping class 10A,10 and 20
2. Short-circuit protection with adjustable threshold (6...13xIr)
3. Phase failure protection (built-in electronic release: operates unbalanced single-phase currentat 40% and more than )(tripping time delay 4s¡À10%),as defined by IEC60947-4.1
4. Load indication : Flashing more than Ir setting threshold
5. Fault indication
LEDs indicates the type of fault that caused tripping
Overload (LT protection) or abnormal component temperature (>Ir);
Short-circuit (ST or instantaneous protection)( >Im);
Phase failure (right LED);
Microprocessor malfunction ( (>Ir) ( >Im) and phase failure LEDs all go on )
Battery powered. Spare battery are supplied in an adapter box. When a fault occurs ,the LEDindicating the type of fault ,lights for about 10 minutes . The information is however stored inmemory . The LED can be illuminated by pressing the test pushbutton. The LED automaticallygoes off and the memory is cleared when the circuit breaker is reset .
Type |
Rated current In(A) |
Note |
AM2-400 |
400 |
Ir=0.4~1×In(adjustable 48 setting) |