English
ASKB5
AISIKAI
| Quantity: | |
|---|---|
Type Desigation
ASK | B | 5 | 63 | L | 1P+N | C | 40A |
| Company Code | Product code | Design Serial | Frame Ratings | Function derivation code | Number of Poles | Tripper Type | Rated Current(A) |
AISIKAI ELECTRIC | Miniature Circuit | 5: basic type | 40: 40A frame(leakage type) | No code:normal protction | 1P: 1poles 2P: 2poles 3P: 3poes 4P: 4poles | C:LIGHT type | 6-63A |
| ASKB5 normal protection type miniature circuit breaker has features as advanced structure, reliable performance, high breaking capacity, beautiful and compact appearance, etc. Shell and three parts are made of impact resistant and high flame retardant materials. ASKB5 are suitable for AC 50Hz or 60Hz, rated operational voltage below 400V, rated current below 63A MCB are mainly used for the overload and short-circuit protection of lines and equipment in lighting and power distribution in office buildings, residences and similar buildings. Under normal conditions, MCB can also be used in infrequent on-off control of electrical devices and lighting lines. |
I. By the over-current tripper rated current
Frame 63(A)： | 6, 10, 16, 20, 25, 32, 40, 50, 63 |
II. Classified by over-current tripper type
C type: protect inductive load and high-inductive lighting system tripping characteristic: instantaneous trip range(5-10)In |
D type: protect high-inductive load and impact load with high starting current( motors, transformers, etc. )tripping characteristic: instantaneous trip range(10-16)In |
Innovative structural design. Breaking capacity up to 10KA
Shell with ventilation slot design, active heat dissipation, reduce temperature riseComposite high conductive material. Longer service lifeErgonomic operation design, non-slip handle for easy operation
Technical Data
63 Frame | ||
No of Poles | 1P, 2P, 3P, 4P, | |
Electrical Performance | ||
Functions | Short-circuit protection, overload protection, isolation, control | |
Rated frequency (f) | Hz | 50/60 |
Rated operational voltage (Ue) | V AC | 230/400 | 400 | 400 | 400 | |
Rated current (In) | A | 6, 10, 16, 20, 25, 32, 40, 50, 63 |
Impulse withstand voltage (Uimp) | kV | 4 |
| Rated insulation voltage(Ui) | V | 500 |
Instantaneous tripping type | C/D | |
| Rated short-circuit capacity (Icu) | k A | Icu=Ics=6(L) |
| Icu=Ics=10(H) | ||
Tripper type | Thermomagnetic | |
Service Life | Mechanical | 20000 |
Electrical | 8000 | |
Control & indication | ||
Optional accessories(multiple options available) | Alarm contact SD, auxiliary contact OF,shunt tripper MX+OF or over-voltage under-voltage tripper MN+MV (choose one of the two) | |
Connection & Installation | ||
Protection level | IP20 | |
Handle lock | None | |
Wiring Capacity | mm² | 1~25 |
Operational Temperature | ℃ | -5~40 |
Resistence to heat & humidity | 2 | |
Altitude | (m) | ≤2000 |
Air relative humidity | Not exceed 95% at +20℃; not exceed 50% at +40℃ | |
Pollution level | 2 | |
Installation environment | Without strong impact and vibration | |
Installation category | Ⅱ，Ⅲ | |
Installation method | DIN standard rail | |
Outline Dimesions （Width x Height x Depth) | a | 18 | 36 | 54 | 72 |
b | 83 | 83 | 83 | 83 | |
c | 78 | 78 | 78 | 78 | |
Application Scenerios
General Operation & Installation Methods
Category | Requirement |
Operational Temperature | Between -5℃ and +40℃. The average value in 24 hours does not exceed +35℃ |
Altitude | Lower than 2000 meters. |
Operational humidity | The relative humidity at +40℃ shall not exceed 50%. Higher relative humidity is allowed at lower temperature. The average maximum relative humidity is 90% in the most humid month |
Installation level | The installation level is Ⅱ,Ⅲ. |
Pollution level | Level 2 |
Installation method | Install vertically or horizontally. Use YH35-7.5 standard DIN rail |
Installation conditions | The inclination of the mounting surface to the vertical surface does not exceed 5 degrees. Use environment should be without strong impact and |
Wiring method | Fasten the wires using screws. |
Wire inlet method | Wiring reversely is acceptable for normal type. |
FAQ
1. What are the rated current specs of ASKB2 series miniature circuit breakers?
- 32(A) frame: 6, 10, 16, 20, 25, 32, 40, 50, 63A
2. How does an MCB work?
-Overload Protection: A bimetallic strip heats up and bends, triggering the trip mechanism (thermal tripping).
-Short-Circuit Protection: An electromagnetic coil generates a magnetic force to instantly trip the mechanism (magnetic tripping).
-Manual Operation: Supports manual ON/OFF switching; some models allow remote control.
3. Why Does an MCB Trip Frequently?
Overload: Total current exceeds the MCB’s rating.
Short Circuit: Line-to-line or line-to-ground fault.
MCB Failure: Damaged internal mechanism.
Wiring Error: Incorrect neutral/ground connections.
Troubleshooting Steps:
Turn off all loads and attempt reset.
Reconnect loads one by one to identify the faulty device.
Check wiring insulation or consult an electrician.
4. Installation Guidelines
Wiring: Line (power) to the top terminal, load to the bottom terminal.
Environment: Avoid moisture, high temperatures, and corrosive gases.
Compatibility: MCB’s breaking capacity must exceed the circuit’s prospective short-circuit current.
5. What If an MCB Won't Reset After Tripping?
Possible Causes:
Persistent short circuit/ground fault.
MCB mechanism failure (e.g., failed to reset).
Solution: Inspect wiring or replace the MCB.
6. What Is the Lifespan of an ASKB5?
Mechanical lifespan: 20,000 operations.
Electrical lifespan: 8000 trips. Frequent tripping reduces longevity.
7. Can MCBs Be Used in DC Circuits?
Standard MCBs: Designed for AC; DC use requires special models (DC MCBs).
DC Ratings: Check manufacturer specs (e.g., 24V/48V DC systems in solar panels).
Arc Extinction: DC arcs are harder to interrupt, needing higher breaking capacity.
