
AISIKAI MCCB Normal working conditions and installation methods | |
Category | Requirements |
Elevation | Installation site not exceeding 2000 meters above sea level |
Ambient air temperature | The upper limit does not exceed+ 40 ºC; the lower limit does not exceed - 5 ºC; the average value of 24 hours does not exceed + 35 ºC |
Pollution Level | Level 3 |
Installation Category | Installation Category Ill, Circuit Breaker 1600A IV |
Atmospheric conditions | Atmospheric relative humidity does not exceed 50% when the ambient air temperature is + 40 C. It can have a higher relative humidity at a lower temperature. The average maximum relative humidity of the wettest month is 90%, and the average minimum temperature of the month is + 25 C. Considering the condensation occurring on the surface of the product due to temperature changes. |
Installation Conditions | Installed in places without significant shaking and shock vibration, the magnetic field near the installation site should not exceed 5 limes of the magnetic field in any direction, and leakage circuit breakers should generally be installed vertically. |
Installation | Circuit breaker can be installed vertically (i.e. vertically) or horizontally (i.e. horizontally). |
Input mode | Circuit breaker can't go down, that is, only 1,3,5 power lines, 2,4,6 load lines |

Circuit breaker with overload, short circuit and under voltage protection device to protect the power lines and equipment from damage.
The circuit breaker can be installed vertically (ie, vertical loading), or horizontally (ie, cross-loaded).
Rated insulation voltage 800V,suitable for AC 50HZ, rated working voltage 690V and below the circuit for infrequent start with.

Technical performance specifications | |||||||
Model | ASKM1L-125 | ASKM1L-250 | ASKM1L-400 | ASKM1L-630 | |||
Frame rating current Inm(A) | 125 | 250 | 400 | 630 | |||
Rated current In(A) | 16,20,25,32,40,50,63,80,100,125 | 100,125,140,160,180,200,225,250 | 225,250,315,350,400 | 400,500,630 | |||
No.of poles | 3/4 | 3/4 | 3/4 | 3/4 | |||
Rated insulation voltage Ui(V) | AC800 | ||||||
Rated operational voltage Ue(V) | AC400 | AC400 | AC400 | AC400 | |||
Rated impulse withstand voltage Uimp(V) | 8000 | 8000 | 8000 | 8000 | |||
Arc distance(mm) | ≯50(0)** | ≯50(0)** | ≯100(0)** | ≯100(0)** | |||
Breaking capacity level | M | M | M | M | |||
UItimate short-circuit breaking capacity Icu(kA) | AC400V | 50 | 50 | 65 | 65 | ||
Service short-circuit breaking capacity Ics(kA) | AC400V | 35 | 35 | 50 | 50 | ||
Rated residua action current I△n(A) | AC type residual current protection | U type tripper,non-delay | 0.03/0.1/0.3/0.5 | 0.03/0.1/0.3/0.5 | - | - | |
V type tripper,switchable between non-delay and delay | 1.0/0.3/0.5 | 0.1/0.3/0.5 | 0.1/0.3/0.5 | 0.3/0.5/1 | |||
W type 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 residual current protection | VA type 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 | ||||||
Rated residual non-action current I△no(mA) | ½ I△n(A) ½ I△n(A) | ||||||
Rated residual short-circuit making(breaking)capacity I△m(kA) | ¼Icu ¼ Icu | ||||||
Operational performance(times)* | Electrical service life(times) | 8000 | 8000 | 7500 | 7500 | ||
Mechanical service life(times)-without maintenance | 20000 | 20000 | 10000 | 10000 | |||
Mechanical service life(times)-with maintenance | 40000 | 40000 | 20000 | 20000 | |||
![]() | W(3P/4P) | 92/122 | 107/142 | 150/198 | 210/280 | ||
L | 150 | 165 | 257 | 280 | |||
H | 92 | 90 | 106.5 | 115.5 |


Before we received the first order, please afford the sample cost and express fee.
AISIKAI will return the sample cost back to you within your first order.
B) Sample time?
Existing items: Within 3 days.
Yes. We can print your Logo on both the products and the packages if you can meet our MOQ.
D) What's about MOQ? Delivery time ?
1pcs for ATS. Normally less than 1000A MCCB with stock, quick support.
E) How to guarantee the quality of your products?
1) Strict detection during production one by one.
2) Strict inspection on products one by one before shipment and intact product packaging ensured.