OEM SPD backup protector T2 series Factories, Exporter

Product overview

According to GB18802.1, GB50057 and Q/THQBOO1-2013 standards, the front end of SPD loop must be connected in series with overcurrent protection appliances required by the surge protector manufacturer.Because the current fuse and miniature circuit breaker can't coordinate with SPD, when the power supply is abnormal or SPD deteriorates and fails, the fire and equipment are damaged by lightning, which has seriously affected the normal operation of production!

At present, a large number of miniature circuit breakers used in conjunction with SPD cannot be matched in the following four points:

1.The lightning current shock is very easy to damage-the lightning protection fails;

2.High residual voltage of lightning impulse current-the reliability of lightning protection of equipment is reduced;

3.The power frequency free-wheeling does not trip-the power supply is abnormal and SPD is on fire;

4.The lightning impact trips by mistake-the lightning protection fails.

In view of the current situation that there is no SPD-specific supporting overcurrent protection device in lightning protection industry, after three years of research and development and more than one year of various environmental simulation experiments in the laboratory, it is proved that SPD backup protector (SCB)

1.SPD power frequency freewheeling trip value 4A

2.Non-trip impulse current is greater than 40kA(8/20);

3.Lightning impulse residual depression. Completely solve the current situation that SPD has no special over-current protection appliances; The direct effect of cooperation between SCB and SPD is to ensure that SPD does not catch fire and lightning current impact does not trip.

Function and scope of application

SPD special external disconnector is connected in series on SPD loop, and internal current sorting channel device is used to realize power frequency small current quick break; High current lightning impact does not trip. Achieve the function of power frequency small current SPD fire protection and lightning impact SPD continuous protection; SCB products are only used for SPD loop overcurrent protection, or backup current protection. Please do not use them in other occasions.

Product features

1. Parameter-controlled tripping mechanism, which can realize selective breaking through current;

2. The residual voltage of impulse current is low, which can be comparable to that of fuse;

3. High-energy contact, with long service life;

4. Micro-broken shape, small volume, convenient for power failure to detect SPD;

5.Complete specifications, meeting the requirements of supporting SPD at T1, T2 and T3 levels.

6.35mm clamp rail installation meets the installation needs all over the world.

Model naming rules

Main technical parameters

Specifications and models	20kA	40kA	80kA	100kA
Non-tripping impulse current Ie	≤20KA（8/20)µs)	≤40KA（8/20)µs)	≤80KA（8/20)µs)	≤100KA（8/20)µs)
Non-tripping impulse current tolerance	10kA(8/20)16 times 20kA(8/20)2 times	20kA(8/20)16 times 40kA(8/20)2 times	40kA(8/20)16 times 80kA(8/20)2 times	60kA(8/20)16 times 100kA(8/20)2 times
Rated operating voltage Ue	230VAC
Rated isolation voltage Ui	400VAC
Current trip value Id	3土1A
Operating short-circuit capability Ics	65kA/100kA
Short-circuit current breaking time Tcs	≤40ms
Load current breaking time To	≤50ms
Mechanical life	＞1000 times
Electrical life	＞1000 times
Enclosure protection grade	IP20
Wire pressing screw	M5
Minimum area of connecting cable	2 5mrn2/flexible
Maximum area of connecting cable	2 5mrn2/flexible
Maximum allowable working current of remote signalling contact	2A/250VAC Normally closed or normally open (default to normally closed)
Shell material	PA 66 UL94V-O
Outline dimension	Small shell :90x72x69mm large shell:l90x144x69mm
Relationship between protection action and ambient temperature	No relation between-25℃ and-60℃
Storage environment	temperature: -40°C~75°C relative humidity:<95% (25°c below）
Working environment	temperature: -40°C~75°C relative humidity:<95% (25°c below）
Shell color	Shell white Handle gray
Installing guide rail	EN60715 (35mm)