Reliable Factory-made SCB Series Backup Protector For SPD

The fuses or circuit breakers currently used in large quantities with SPD are incompatible with the following three points 1. When the lightning current strikes, it is broken by mistake and is easily damaged-SPD cannot play the function of lightning protection; 2. When the SPD is short-circuited, the power frequency will not be interrupted. When the SPD fails or the line current is not large when the short-circuit occurs, it is difficult to meet the breaking current requirements of the fuse and the circuit breaker. Cause a fire accident; 3. When the lightning current strikes, the residual voltage is high-the reliability of equipment lightning protection is reduced. In response to the inconsistency of the above products, our company has developed this series of SPD backup protectors after long-term research and development and a large number of tests, which can effectively coordinate with the SPD to realize the lightning protection function, and solve the use of fuses or circuit breakers as SPDs. The backup protector has potential safety hazards The direct effect of the combination of this product and SPD is: under the impact of large lightning, it will not be interrupted to ensure the effective performance of the lightning protection function; when the SPD fails, the small power frequency current flows through and is quickly disconnected to ensure the safety of the power grid and electricity use.The backup protector plays a very important role, but it depends on whether your products are of good quality. Good quality will play a great role. You should use the backup protector for lightning protection. The direct effect of the backup protector produced by LEIHAO Lightning Protection Company and SPD is that the SPD backup protector will not be broken under heavy lightning impact; After SPD breaks down, the small power frequency current flow is cut off quickly to ensure the safety of power grid and power consumption. When transient overvoltage occurs in the power supply line, the SPD is turned on, which will lead to power trip and accidents. After installing SCB backup protector, the circuit can be quickly disconnected when SPD is short-circuited by transient overvoltage, thus avoiding accidents caused by SPD breakdown. When lightning passes through, the SCB backup protector can effectively avoid false tripping, so that the surge protector is always in an effective state, ensuring the safety of power consumption.

1. when transient overvoltage occurs in power line, SPD conduction will break through short circuit, which will cause power trip and accident. after SCB backup protector is installed, circuit can be quickly disconnected when transient overvoltage short circuit occurs in SPD, so as to avoid accidents caused by SPD breakdown. 2. When lightning passes through, SCB backup protector can effectively avoid false tripping, so that surge protector is always in an effective state, ensuring the safety of electricity consumption.●Parametric control trip mechanism, analysis of actual selection of passing current ●The impulse current is horribly low, which is comparable to the fuse ●High-energy contacts, long service life; ●Micro-off appearance, small size, convenient for power off to match SPD ●Complete specifications, meeting the requirements of SPD 11, T2, and T3; ●35m rail installation, in line with installation needs all over the world.

LH-SCB-40/2p Maximum continuous operating voltage Uc 230V~ Maximum discharge current Imax 40KA Appearance: white gray, non-linkedLH-SCB-40/4p Maximum continuous operating voltage Uc 230V~ Maximum discharge current Imax 20KA Appearance: white gray, non-linkedLH-SCB-40/4p Maximum continuous operating voltage Uc 230V~ Maximum discharge current Imax 20KA Appearance: white gray, non-linked

Model	LH-SCB-20	LH-SCB-40	LH-SCB-60	LH-SCB-80	LH-SCB-100	LH-SCB-15G
Non-tripping impulse current Ie	20KA（8/20）	40KA（8/20）	60KA（8/20）	80KA（8/20）	100KA（8/20）	15KA（10/350）
Non-tripping impulse current withstand capability	10KA（8/20）	20KA（8/20）	30KA（8/20）	40KA（8/20）	60KA（8/20）	15KA（10/350）
	20KA（8/20）	40KA（8/20）	60KA（8/20）	80KA（8/20）	100KA（8/20）	15KA（10/350）
Rated working voltage Ue	230VAC
Rated insulation voltage Ui	400VAC
Current trip value Io	3V±1A
Power frequency short circuit current breaking time Tcs	≤40ms
Power frequency load current breaking time To	≤50ms
Mechanical life	≤4000 times
Electrical life	≤4000 times
Enclosure rating	IP20
Crimping screw	M5
Minimum area of connecting cable	2.5mm²/flexible
Maximum area of connecting cable	25mm²/flexible
Maximum allowable working current of remote signal contact	2A/250VAC normally closed or normally open (default normally closed)
shell material	PBT UL94V0
Dimensions	917317.8mm
Relationship between protection action and ambient temperature	Switch within -25℃~-60℃
Storage environment	Temperature -40℃~-75℃ Relative humidity: <95% (under 25℃)
working environment	Temperature -25℃~-60℃ Relative humidity: <95% (under 25℃)
Install the rail	EN60715(35mm)

SCB series backup protector for SPD

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