CJB1 18mm Width 1p+N Plug in Circuit Breaker 6ka Single Phase

1. Application:For protecting cables and equipments against overload and short circuit. 2. General rules for choosing MCB. 2.1 Technical data of the network at the point considered: The earthing systems, short-circuit current at the circuit breaker installation point, which must always be less than the breaking capacity of this device,network normal voltage. 2.2 There are 3 curve characteristics for magnetic operation: B curve (3-5 In) protection and control of the circuits against length cables in TN and IT systems. C curve (5-10 In) protection and control of the circuits against overloads and short-circuits; protection for resistive and inductive loads with low inrush current. D curve(10-20 In) protection and control of the circuits against overloads and short-circuits; protection for circuits which supply loads with high inrush current at the circuit closing (LV/LV transformers, breakdown lamps). 3. CJB1 is of high current limiting performance to limit the destuction energy due to short circuit to the greatest extent.
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Products Details

Technical Data

Standard Unit IEC/EN 60898-1
Electrical features Rated current In A 1,2,4,6,10,16,20,25,32,40,50,63
Poles P 1,2,3,4
Rated voltage Ue V AC 240/415
lnsulation voltage Ui V 500
Rated frequency Hz 50/60
Rated breaking capacity A 750010000
Rated impulse withstand voltage(1.2/50) Uimp V 4000
Dielectric test voltage at ind.Freq. for 1min kV 2
Pollution degree 2
Thermo-magnetic release characteristic B,C,D
Mechanical features Electrical life t 4000
Mechanical life t 10000
Protection degree IP20
Reference temperature for setting of thermal element ℃ 30
Ambient temperature(with daily average ≤35℃) ℃ -5~+40(Special application please refer to temperature compensation correction)
Storage temperature ℃ -25~+70℃
lnstallation Terminal connection type Cable/Pin-type busbar/U type busbar
Terminal size top / bottom for cable mm² 25
AWG 18-3
Terminal size top / bottom for busbar mm² 25
AWG 18-3
Tightening torque N*m 2
In-Ibs. 18
Mounting On DIN rail EN 60715(35mm)by means of fast clip device
Connection From top and bottom

 Temperature Derating

Please refer to table below for temperature compensation correction
Rated Current In(A) Temperature compensation coefficient under various operational temperature
-10℃ 0℃ 10℃ 20℃ 30℃ 40℃ 50℃ 55℃ 60℃
7~6 1.20 1.14 1.09 1.05 1.00 0.96 0.80 0.75 0.70
10~32 1.18 1.12 1.08 1.04 1.00 0.96 0.92 0.88 0.84
40~60 1.16 1.12 1.07 1.03 1.00 0.97 0.87 0.83 0.80

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