various poles combined surgebreaker plus surge protective device 230AC IP20

various poles combined surgebreaker plus surge protective device 230AC IP20

Product Details:

Place of Origin: Dongguan China
Brand Name: Uchi
Certification: CE / SGS / ISO9001
Model Number: YCSCB-40/A2-72

Payment & Shipping Terms:

Minimum Order Quantity: 200 piece
Price: Negotiate
Packaging Details: export package / Negotiate
Delivery Time: 5-15 days after payment
Payment Terms: T/T, L/C, Western Union, D/P
Supply Ability: 60000 pieces per month
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Detail Information

Ue: 230AC Certification: CE / SGS / ISO9001
Condition: 100% Original Ie: 40kA(8/20us)
Poles: 1P(18mm)/2P(36mm)3P(54mm)/4P(72mm) IP: IP20
Io: 3A
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surgebreaker plus surge protective device


230AC surgebreaker plus surge protective device


IP20 surge protection breakers

Product Description

various poles combined surgebreaker plus surge protective device 230AC IP20

230VAC 40ka Surge special circuit breaker various poles


Surge Special Circuit Breaker (SCB) Product advantage:

Various combined: 1P(18mm)/2P(36mm)3P(54mm)/4P(72mm)

Lower price 


One wrench each pole, easy control

The ability to withstand the impact of current is strong, no wrong action;

Power frequency current through more than 3A trip;

Running short circuit current breaking ability is strong;

Installation rail: 35mm guide rail installation;



Product Parameter

Style YCSCB-40/A2-72
Short-circuit breaking capacity(Ics) 6kA
Rated operational voltage(Ue) 230V
Rated insulation voltage (Ui) 400VAC
Impulse withstand current (Iemax) 40kA(8/20us)
Power frequency trip curren (Ii) 3A
mechanical endurance(time) 1000
Maximum terminal connection 25mm2
Working environment temperature -25℃60℃
Working environment humidity (room temperature) 20%90%RH
Installation rail EN60715(35mm)


SCB basic info

Surge Backup Protector is a special device designed and produced according to the requirements of Lec61643-4-43 in article 430.3 :" Before the circuit causes danger, appropriate overcurrent protection device should be used ". Also known as SPD Backup Protector, SCB or SSD.


Why Use SCB?

1, SCB can quickly cut off the access to prevent the lightning protection device fire, cut off the current is less than 3A when the deterioration of the lightning protection device, abnormal overvoltage of the distribution line causes the short circuit of the SPD conduction;

2. When lightning strikes occur, the SCB connected in series in front of SPD can ensure that the lightning does not tripped, damage, and lightning protection is continuous and effective;

3. The UP value (voltage protection level value) is very low when SCB passes through lightning current;

4, Rated short circuit breaking capacity up to 100KA;



SCB compared with duse and circuit breakers :

SCB Fuses and circuit breakers
SPD special backup protector, intelligent identification of lightning current and power frequency current. Used for low voltage distribution leakage load, short circuit protection.
Surge impact is not tripped, residual low, lightning protection equipment continued effective wrong action by surge, poor lightning protection performance, generally only 20KA, the equipment lost lightning protection and damage.
When the short circuit current >3A flowing through SPD is broken in 0.1-0.3s,SPD will not catch fire Small current (several amperes) does not operate, its action value is 5~10 times its own rating,SPD fire combustion.
Power frequency short circuit breaking ability Power frequency short circuit breaking capacity is insufficient, after the SPD fire, the short circuit arc continued to burn, causing a major fire accident.

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