ASKB1L
AISIKAI
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Type Desigation
ASK | B | 1 | L | 63 | H | 1P+N | C | 40A | |
Companycode | Product Type | Design Serial | Leakage Protection | Frame Ratings | Breaking Capacity | No. Of Poles | Tripper Type | Rated Current | |
Miniature Circuit Breaker | 1:basic type | GQ | Overvoltage,under-voltage protection | 63A:63A Frame 125: 125A Frame | L : 4.5kA H: 6kA | C:Lightening type D:Power type | 3-125A | ||
S | Prepared special protection | ||||||||
L | Leakage protection | ||||||||
MAIN TECHNICAL PARAMETERS
40 Frame | ||||||||||||||||||
General power distribution protection (IEC/EN 61009-1 ；GB 16917.1) |
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No. of poles | 1P+N | 2P | 3P | 3P+N | 4P | |||||||||||||
Electrical performance | ||||||||||||||||||
Functions | Short-circuit protection, overload protection, leakage protection,isolation, control | |||||||||||||||||
Residual current type | ACtype(ensure tripping for sudden applied or slowly rising residual sinusoidal AC currents) | |||||||||||||||||
Rated frequency | f | ( Hz ) | 50 | |||||||||||||||
Rated operational voltage | Ue | ( V AC ) | 230 | 230 | 400 | 400 | 400 | |||||||||||
Rated residual action current | I△n | (mA) | Default 30mA(non-action current 15mA). 50, 100, 200, 300mA is customizable | |||||||||||||||
Rated current | In | ( A ) | 3, 6, 10, 16, 20, 25, 32, 40, 50, 63 | |||||||||||||||
Instantaneous tripping type | C/D | |||||||||||||||||
Rated residual making and breaking capacity | Im | ( A ) | 2000 | |||||||||||||||
Rated short-circuit capacity | Icu ( kA ) | L | Icu=Ics=4.5 | |||||||||||||||
| H | Icu=Ics=6 | |||||||||||||||||
Tripper type | Thermomagnetic | |||||||||||||||||
Service life | ( 0 ~ C ) | Mechanical service life | 20000 | |||||||||||||||
| Electrical service life | 8000 | |||||||||||||||||
Control and indication | ||||||||||||||||||
Optional accessories(multiple options available) | Alarm contact SD, auxiliary contact OF | |||||||||||||||||
Connection and installation | ||||||||||||||||||
Protection level | IP20 | |||||||||||||||||
Wiring capacity (mm²) | 1~25 | |||||||||||||||||
Operational temperature (℃) | -25 ~ +60 | |||||||||||||||||
Resistance to heat and 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 | Ⅲ | |||||||||||||||||
Installation method | DIN standard rail | |||||||||||||||||
Outline dimensions Width*Height*Depth (mm) | a
| a | 1-32A | 45 | 63 | 90 | 99 | 117 | ||||||||||
| 40-63A | 54 | 73 |
103 | 117 | 135 | |||||||||||||
b | 96 | |||||||||||||||||
c | 76 | 78 | ||||||||||||||||
125 Frame | ||||||||||
General power distribution protection (IEC/EN 61009-1 ；GB 16917.1) |
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No. of poles | 1P+N | 2P | 3P | 3P+N | 4P | |||||
Electrical performance | ||||||||||
Functions | ||||||||||
Residual current type | AC type(ensure tripping for sudden applied or slowly rising residual sinusoidal AC currents) | |||||||||
Rated frequency | f | ( Hz ) | 50 | |||||||
Rated operational voltage | Ue | ( VAC ) | 230 | 230 | 400 | 400 | 400 | |||
Rated residual action current | I△n | (mA) | Default 50mA(non-action current 25mA). 30, 100, 200, 300mA is customizable | |||||||
Rated current | In | ( A ) | 50, 63, 80, 100, 125 | |||||||
Instantaneous tripping type | C/D | |||||||||
Rated residual making and breaking capacity | Im | ( A ) | 2000 | |||||||
Rated short-circuit capacity | Icu | ( kA ) | 10 | |||||||
Tripper type | Thermomagnetic | |||||||||
Service life | ( 0 ~ C ) | Mechanical service life | 20000 | |||||||
Electrical service life | 8000 | |||||||||
Control and indication | ||||||||||
Optional accessories(multiple options available) | Alarm contact SD, auxiliary contact OF | |||||||||
Connection and installation | ||||||||||
Protection level | IP20 | |||||||||
Wiring capacity | (mm²) | 1~25 | ||||||||
Operational temperature | (℃) | -25 ~ +60 | ||||||||
Resistance to heat and 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 | Ⅲ | |||||||||
Installation method | DIN standard rail | |||||||||
Outline dimensions Width*Height*Depth (mm) | a
| a | 54 | 81 | 108 | 108 | 135 | |||
| b | 113 | |||||||||
| c | 78.5 | |||||||||
MAIN STRUCTURE INTRODUCTION
Structure overview | Leakage protection type miniature circuit breaker is modular structure, which is made of ASKB1 normal MCB body on the left and leakage detection mechanism on the right. The main components include circuit board, current transformer,electronic, etc. The left and right parts are tightly fixed together. Manual operation is used for open/close operation. |
Working method | Miniature circuit breakers achieve the on-off of the circuit through the manual operation on the open/close handles. When the circuit is short-circuited or overloaded, the magnetic tripper or thermal tripper pushes the free tripping mechanism into action and the main contact breaks the main circuit, realizing the protection of the distribution lines.When there is a leakage situation, the current vector sum through the N line current transformer is not equal to zero. The circuit board amplifies the transformer voltage signal, driving the electronic tripping into action, pushing the tripping mechanism in ASKB1 normal type body through the linkage rod to achieve the breaking protection. |
Circuit board | The main components use the bidirectional thyristor, which can sensitively detect the milliamp signal from the N-line transformer, and then analyze and process the signal to amplify the signal, relying on the principle of low power control of high power to drive the electronic tripper acts. |
Electronic tripper | The electronic tripper is the main action component of the leakage protection mechanism. After the signal amplified by the circuit board reaches the required voltage to drive the tripper, it acts immediately, driving the linkage rod to drive the tripping mechanism in ASKB1 normal type to break the main circuit for the purpose of protecting the distribution lines. |
Test button | Leakage protection miniature circuit breaker has test button. When the test button is pressed down, the driving circuit of the electronic tripper is turned on. The tripper acts immediately, driving the relevant mechanism to realize the breaking. It is used for periodic testing of the operating condition of leakage type circuit breakers. |
Test current (A) | Rated current (A) | Rated time | Expected result | Initial result | Notes |
1.13In | 6-63 | 1≥In | Not trip | Cold | |
1.45In | 6-63 | 1≤1 In | Trip | Performed immediately after the previous test | The current rises steadily to the specified value within 5s |
2.55In | 6-63 | 1S＜t＜60S | Trip | Cold | In≤32 |
1S＜t＜120S | Trip | In＞32 | |||
5In | 6-63 | t≥0.1S | Not trip | Cold | C |
10In | t＜0.1S | Trip | |||
10In | t≥0.1S | Not trip | D | ||
16In | t＜0.1S | Trip |
Note: the "cold" state means at the reference calibration temperature, without load before the test.
FAQ
Q1: What are the main functions of the ASKB1L Leakage Protection Miniature Circuit Breaker?
A1: The ASKB1L integrates short-circuit protection, overload protection, leakage protection, isolation, and control functions. Its leakage protection detects residual current in the circuit (e.g., default 30mA or 50mA). When the vector sum of currents is not zero, the electronic tripper triggers a trip to disconnect the circuit, safeguarding distribution lines and personnel. It is suitable for AC 50Hz systems with rated voltages of 230V/400V, currents up to 125A, and is designed for lighting and power distribution applications.
Q2: How can I test if the leakage protection function is working properly?
A2: The device includes a Test button. Pressing this button simulates a leakage signal, activating the electronic tripper and disconnecting the circuit. It is recommended to use this button periodically (e.g., monthly) to verify the reliability of the leakage protection mechanism and ensure normal operation.
Q3: What are the installation requirements for the ASKB1L?
A3:
• Ambient Temperature: -25℃ to +60℃.
• Humidity: ≤95% at 20℃; ≤50% at 40℃.
• Altitude: ≤2000 meters.
• Pollution Level: Level 2 (non-conductive dust, non-corrosive environments).
• Installation: Mounted on a DIN standard rail; avoid strong vibrations or impacts.
• Wiring Capacity: Supports 1-25mm² conductors.
Additionally, the product complies with GB16917.1/IEC61009-1 standards and is suitable for general power distribution protection scenarios.
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