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SP7 series SPD suitable for TN-S, TN-C, TN-C-S, TT, IT power supply system with AC 400V and below, 50/60Hz, used as equipotential connection at the boundaries of LPZOA and LPZO1 zone or LPZOB and LPZ1 zone, make lightning strike or surge protection for the power grid.
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SP7 Series
Application
SP7 series SPD suitable for TN-S, TN-C, TN-C-S, TT, IT power supply system with AC 400V and below, 50/60Hz, used as equipotential connection at the boundaries of LPZOA and LPZO1 zone or LPZOB and LPZ1 zone, make lightning strike or surge protection for the power grid.
The protector also suitable to combine with voltage limiting SPD to form "3+1" combination, used for TT system. The protector is not suitable for the system which the expected short circuit current exceed the rated follow on current breaking value.
Model Meanings
① | Surge protection device (SPD) |
② | Design code |
③ | Max. discharge current Imax (kA) |
④ | Combine mode (1P/2P/3P/4P) |
⑤ | Max. continuous voltage |
⑥ | Accessory: Remote signaling contact F Sound and light alarm B |
Main Technical Parameters
Classification | SP7 | ||||||||
Rated operating voltage Un (V) | 230/400 | ||||||||
Nominal discharge current In (8/20µs) kA | 40 | 50 | 60 | 100 | |||||
Max. discharge current Imax (8/20µs) kA | 80 | 100 | 120 | 150 | |||||
Max. continuous operating voltage Uc (V) | 385 | 420 | 385 | 420 | 385 | 420 | 385 | 420 | |
Protection level Up (KA) | <2.4 | <2.5 | <2.5 | <2.8 | <2.8 | <3.0 | <3.0 | <3.5 | |
Front fuse (A) | 50 | 63 | 63 | 100 | |||||
Response time (ns) | <25 | ||||||||
Test classification | Class I | ||||||||
Protection class | IP20 | ||||||||
Max. ambient temperature (℃ ) | -40℃ ~+80℃ | ||||||||
Insulation enclosure material | PBT/PA66 | ||||||||
Flame resistance class, confirm to UL94 | VO | ||||||||
Installation mode | 35mm standard rail | ||||||||
Enclosure color | White | ||||||||
Wire cross section (mm2) | phase line, neutral line | 16-35Hard wire | |||||||
Earthing line | 16-25Dual color | ||||||||
Standard | GB18802.1 GB18802.21 IEC61643-1 IEC61643-21 UL1449 ed.2 | ||||||||
Outline And Installation Dimension (mm)
SPD For Power Supply System Series Selection Guide
The installation of SPD at each lightning protection zone, according to the standard of low voltage electrical appearance, make classification of electrical equipment in accordance with the over voltage category, its insulation withstand impulse voltage level can determine the selection of SPD. According to the standard of low voltage electrical appearance, make classification of electrical equipment in accordance with the over voltage category as signal level, loading level, distribution and control level, power supply level. Its insulation withstand impulse voltage level are:1500V, 2500V, 4000V, 6000V. As per to the protected equipment installation position different and the different lightning current of different lightning protection zone, to determine the installation position of SPD for power supply and the break-over capacity.
The installation distance between each level SPD should not more than 10m, the distance between SPD and protected equipment should as short as possible, not more than 10m. If due to limitation of installation position, can’t guarantee the installation distance, then need to install decoupling component between each level SPD, make the after class SPD can be protected by the prior class SPD. In the low voltage power supply system, connecting an inductor can achieve the decoupling purpose.
● SPD for power supply system specification selection principle
○ Max. continuous operating voltage: bigger than protected equipment, the system’s max. continuous operating voltage.
○ TT System: Uc≥1.55Uo (Uo is low voltage system to null line voltage)
○ TN System: Uc≥1.15Uo
○ IT System: Uc≥1.15Uo(Uo is low voltage system to line voltage)
○ Voltage Protection Level: less than the insulation withstand impulse voltage of protected equipment
○ Rated discharge current: determined as per to the lightning situation of the position installed and lightning protection zone.
Hot Tags: building lightning arresters, China, suppliers, manufacturers, factory, price, discount
SP7 Series
Application
SP7 series SPD suitable for TN-S, TN-C, TN-C-S, TT, IT power supply system with AC 400V and below, 50/60Hz, used as equipotential connection at the boundaries of LPZOA and LPZO1 zone or LPZOB and LPZ1 zone, make lightning strike or surge protection for the power grid.
The protector also suitable to combine with voltage limiting SPD to form "3+1" combination, used for TT system. The protector is not suitable for the system which the expected short circuit current exceed the rated follow on current breaking value.
Model Meanings
① | Surge protection device (SPD) |
② | Design code |
③ | Max. discharge current Imax (kA) |
④ | Combine mode (1P/2P/3P/4P) |
⑤ | Max. continuous voltage |
⑥ | Accessory: Remote signaling contact F Sound and light alarm B |
Main Technical Parameters
Classification | SP7 | ||||||||
Rated operating voltage Un (V) | 230/400 | ||||||||
Nominal discharge current In (8/20µs) kA | 40 | 50 | 60 | 100 | |||||
Max. discharge current Imax (8/20µs) kA | 80 | 100 | 120 | 150 | |||||
Max. continuous operating voltage Uc (V) | 385 | 420 | 385 | 420 | 385 | 420 | 385 | 420 | |
Protection level Up (KA) | <2.4 | <2.5 | <2.5 | <2.8 | <2.8 | <3.0 | <3.0 | <3.5 | |
Front fuse (A) | 50 | 63 | 63 | 100 | |||||
Response time (ns) | <25 | ||||||||
Test classification | Class I | ||||||||
Protection class | IP20 | ||||||||
Max. ambient temperature (℃ ) | -40℃ ~+80℃ | ||||||||
Insulation enclosure material | PBT/PA66 | ||||||||
Flame resistance class, confirm to UL94 | VO | ||||||||
Installation mode | 35mm standard rail | ||||||||
Enclosure color | White | ||||||||
Wire cross section (mm2) | phase line, neutral line | 16-35Hard wire | |||||||
Earthing line | 16-25Dual color | ||||||||
Standard | GB18802.1 GB18802.21 IEC61643-1 IEC61643-21 UL1449 ed.2 | ||||||||
Outline And Installation Dimension (mm)
SPD For Power Supply System Series Selection Guide
The installation of SPD at each lightning protection zone, according to the standard of low voltage electrical appearance, make classification of electrical equipment in accordance with the over voltage category, its insulation withstand impulse voltage level can determine the selection of SPD. According to the standard of low voltage electrical appearance, make classification of electrical equipment in accordance with the over voltage category as signal level, loading level, distribution and control level, power supply level. Its insulation withstand impulse voltage level are:1500V, 2500V, 4000V, 6000V. As per to the protected equipment installation position different and the different lightning current of different lightning protection zone, to determine the installation position of SPD for power supply and the break-over capacity.
The installation distance between each level SPD should not more than 10m, the distance between SPD and protected equipment should as short as possible, not more than 10m. If due to limitation of installation position, can’t guarantee the installation distance, then need to install decoupling component between each level SPD, make the after class SPD can be protected by the prior class SPD. In the low voltage power supply system, connecting an inductor can achieve the decoupling purpose.
● SPD for power supply system specification selection principle
○ Max. continuous operating voltage: bigger than protected equipment, the system’s max. continuous operating voltage.
○ TT System: Uc≥1.55Uo (Uo is low voltage system to null line voltage)
○ TN System: Uc≥1.15Uo
○ IT System: Uc≥1.15Uo(Uo is low voltage system to line voltage)
○ Voltage Protection Level: less than the insulation withstand impulse voltage of protected equipment
○ Rated discharge current: determined as per to the lightning situation of the position installed and lightning protection zone.
Hot Tags: building lightning arresters, China, suppliers, manufacturers, factory, price, discount