FRAME
![690e82ed-7cfd-463c-9365-35f914bfc2a4]()
WIRING METHOD
![7395d66c-dcd7-45f6-ba1b-36b7faa61ae0]()
OPERATION METHOD
![a4ffe11f-1ae7-480f-8aed-742e46e7b97a]()
APPLICABLE STANDARDS
IEC60947-2
![367b64c9-619e-4d38-8ef8-88466b369348]()
FEATURES
Small volume, high breaking capacity, short flying arc,vibration resistant;
Reasonable structure,reliable performance,easy installation;
Extensive optional accessories,can installed on-line,meet the technical requirements of different power distribution systems.
FAQ
1、What accessories can be installed?
Alarm contact, shunt release, auxiliary contact, undervoltage release, electric operating mechanism, manual operating mechanism, machine operating mechanism
2、What are the reasons for frequent tripping?
Possible causes include: excessive load, circuit short, unstable voltage, internal fault or improper trip setting.
3、Can this type of MCCB be used in DC circuits?
Currently only available for AC400/415V, AC660/690V.
4、What should I do if the MCCB can't close?
Check whether the overload or short-circuit fault has been cleared.
Check whether the operating mechanism is stuck.
Check whether the undervoltage trip and shunt trip are operational.
Check that the auxiliary contacts and interlocking mechanisms are correct.
TECHNICAL DATASHEET OF ASKM3L THERMOMAGNETIC LEAKAGE PROTECTION MOLDED CASE CIRCUIT BREAKER
Model | ASKM3L-125 | ASKM3L-250 | ASKM3L-400 | ASKM3L-630 |
Frame rating current Inm(AF) | 125 | 250 | 400 | 630 |
Rated current In(A) | 16 20 25 32 40 50 63 80 100 125 | 100 125 140 160180 200 225 250 | 225 250 315 350 400 | 400 500 630 |
No.of poles | 3/4 | 3/4 | 3/4 | 3/4 |
Rated insulation voltage Ui(V) | AC800V |
Rated impulse withstand voltage Uimp(V) | 8000V |
Rated operational voltage Ue(V) | AC400V |
Arc distance(mm) | ≯50(0)** | ≯50(0)** | ≯100(0)** | ≯100(0)** |
Breaking capacity level | M | M | M | M |
Ultimate short-circuit breaking capacity Icu(kA) | AC400V | 50 | 50 | 65 | 65 |
Service short-circuit breaking capacity Ics(kA) | AC400V | 35 | 35 | 50 | 50 |
Rated residual action current In(A)
| AC type residual current protection
| Utype current tripper, non-delay time | 0.03/0.1/0.3/0.5 | 0.03/0.1/0.3/0.5 | —— | —— |
V type current tripper,switchable between non-delay and delay | 1.0/0.3/0.5 | 1.0/0.3/0.5 | 0.1/0.3/0.5 | 0.3/0.5/1 |
W type current tripper,switchable between non-delay and delay | 0.3/1/3/10 | 0.3/1/3/10 | 1/3/10/30 | 1/3/10/30 |
A type reidual current protection | VA type current tripper,switchable between non-delay and delay | 0.1/0.3/0.5 | 0.1/0.3/0.5 | 0.1/0.3/0.5 | 0.3/0.5/1 |
Use category | A | A | A | A |
Rated residual non-action current Ino(mA) | 1/2 In |
Rated residual short-circuit making(breaking)capacity Im(kA) | 1/4 Icn |
Operational perfomance (times)
| Electrical service life(times of operation) | 8000 | 8000 | 7500 | 7500 |
Mechanicalservice life(times of operation) without maintenance | 20000 | 20000 | 10000 | 10000 |
Mechanical service life(times of operation) with maintainable | 40000 | 40000 | 20000 | 20000 |
Outline dimensions (mm)
| W(3P/4P) | 92/122 | 107/142 | 150/198 | 210/280 |
L | 150 | 165 | 257 | 280 |
H(with handle) | 92 | 90 | 107 | 114.5 |
COMPARISON BETWEEN M1, M2 and M3 SERIES
![MCCB Comparison 2 MCCB Comparison 2]()
For more details, please see the article: Comparison Between AISIKAI M1 M2-and M3 Series MCCB.