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SCB ( Surge Protector Circuit Breaker )-SSD ( SPD Specific Disconnector)

Quantité : 2000pcs pe   Prix : Different products h

In low voltage power systems, a surge protector circuit breaker (SCB)-SSD ( SPD Specific Disconnecotor) is an external disconnector used in series with a surge protector (SPD). Surge protector circuit breakers are suitable for AC 50/60hz, 15/20 amp, 230v-400v range of TT, TN, and other power supply systems. The power frequency action current of the SCB breakers is less than 3A, (8/20s impulse current can pass through 120kA). All the performance indexes of products exceed miniature surge arrester circuit breakers and fuses, making them the best choice for SPD backup protection. The SCB (SSD) is connected in series on the SPD circuit and has the ability to resist high surges. The T1 level can reach up to 25KA (10/350μs), and the residual voltage is low. The surge protector main breaker can intelligently identify lightning current and power frequency current. When the power distribution system fails, it can trip quickly within 0.1S to protect the SPD from fire.

Features Of Surge Protector Circuit Breaker-SSD ( SPD Specific Disconnector)

The SCB (surge protector circuit breaker)-SSD ( SPD Specific Disconnecotor) is specially designed for SPD according to the requirements of GB18802.1/IEC61643-11-2011, to solve the problem that when the SPD has power frequency leakage current or working frequency follow current due to deterioration or power frequency overvoltage, The SCB acts quickly to disconnect the SPD from the power frequency distribution system but does not act when the SPD discharges the lightning electromagnetic pulse current; SCB breakers effectively solves the possibility of serious accidents such as burning and explosion in the application of the SPD, At the same time, it effectively solves the problem of protection dead zone when using a fuse or a spd circuit breaker as an external disconnecting device. In low-voltage power distribution systems, it is an ideal companion device for voltage-switching SPDs and voltage-limiting SPDs.

2. With a special design, it can accurately distinguish and identify the power frequency current and the lightning electromagnetic pulse current, and automatically make the correct action.

3. It has the functions of large current flow, low residual voltage, small power frequency tripping current, and short circuit protection tripping.

Note: It is forbidden to connect other loads at the end of the SCB.

Specification Of Surge Protector Circuit Breaker-SSD ( SPD Specific Disconnector)

Models

TD-HA 15

TD-HA25

TD-HA50

TD-HB 20

TD-HB 40

TD-HB 60

TD-HB 80

TD-HB 100

TD-HB 120

Test Standard

T1 T2

Normal Voltage

230/400V AC

Nominal discharge current8/20μsIn

10

20

30

40

50

60

Maximum discharge current8/20μsImax

20kA

40kA

60kA

80kA

100kA

120kA

Maximum discharge current10/3500μsIimp

15KA

25KA

50KA

Frequency

50/60Hz

Rated short-circuit current capability Icn

100kA

100kA

100kA

15kA

30kA

50kA

50kA

100kA

100kA

Matched SPD

Iimp
15kA

Iimp
25kA

Iimp
50kA

Imax
20kA

Imax
40kA

Imax
60kA

Imax 80kA

Imax
100kA

Imax
120kA

Powerfrequency short circuit operating current Id

3A

Powerfrequency breaking times Tcn

0.1s

Product width dimension

18cm

36cm

18cm

36cm

Power frequency breaking times

1000 times

IP Grade

IP20

Remote Control

Option

Working Temperature

25~+75℃

Number of pole

1P/2P/3P/4P

Shenzhen Techwin Lighting Technologies Co., Ltd is a professional lightning protector supplier, we provide solar power surge protector, power surge circuit breaker, lightning surge protector, coaxial surge protector and etc. Want to know more? Please contact us.

Localisation : Build D, Huafeng Hi-Tech Industrial park, Jinlan Road, Large Industrial Park, Pingshan district, Shenzhen, 518118 Shenzhen,
Personne à contacter : win Tech, 0755 86215101

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SCB ( Surge Protector Circuit Breaker )-SSD ( SPD Specific Disconnector)

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