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CQL14 Series Electromagnetic Protection Residual Current Device

CQL14 Series Electromagnetic Protection Residual Current Device

The CQL14 series residual current device is designed by CHAC Electric to meet the IEC61008-1 standards and is suitable for 230V single-phase or 400V three-phase AC circuits (50/60Hz). It is used in industrial and mining facilities, commercial buildings, and residential settings to prevent electrical fires and electric shock accidents. As a purely electromagnetic leakage protection device, it adopts an auxiliary power-free design and utilizes high-precision current transformers to monitor the vector differential current in real-time. When the leakage current reaches the preset threshold, the electromagnetic tripping mechanism instantly disconnects the faulty circuit within milliseconds. With a compact structure, high reliability, and strong anti-interference capability, its performance remains unaffected by ambient temperature fluctuations or lightning interference, ensuring effective protection against leakage-related hazards.

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Technical data

Specifications
Frame size current 63A
Rated operational voltage (Ue) AC230V/2P、AC400V/4P
Rated insulation voltage (Ui) AC400V
Rated current(In) See Table 2
Rated impulse withstand voltage (Uimp) 4KV
Rated sensitivity (I△n) See Table 2
Poles 2P、4P
Rated residual making & breaking capacity (I△m) 630A
Rated conditional short-circuit current(Inc) 6000A
Tripping time <0.1s
Mechanical & Electrical life Mechanical≥4000, Electrical≥2000
Protection degree IP20
Standards IEC 61008 -1, GB/T16916.1
Compliant certification CB,CE,CCCC

Table2

Item Rated current(In)/A Rated sensitivity (IΔn)/mA
AC 16、20、25、32、40、50、63 30、100、300

Conductor requirements and cross sections

Copper cross-section(mm²) Rated current In(A)
2.5 16A
4 25A
6 32A
10 40A
16 50-63A

Dimensions(unit:mm)

Order Specifications

1.When ordering circuit breakers, the following points should be specified:

a) Product models, such as CQL14;

b) The number of polar lines of circuit breakers, such as 2P;

c) The rated current of the circuit breaker, such as 16A;

d) Rated residual operating current,such as 100mA;

e) Instantaneous release type: AC type

F) Order quantity, such as 100pcs

2.Order template

CQL14 2P AC/16A 100mA 100pcs

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