What is a Surge Protective Device (SPD)?
A Surge Protective Device (SPD) is an essential electrical component designed to protect electrical equipment from damage caused by sudden voltage spikes, known as surges. These surges can result from
• Standard: IS0 8820-1, IS0 8820-8, JASO D622
• Rated voltage: DC750V
• Rated current: 100A, 125A, 150A, 200A
• Breaking capacity: 20kA
• Protection object: Provide safer and more reliable protection against overload and short-circuit current faults of electric vehicle lithium battery pack, Super-capacitor circuit , charging circuit, DC-DC converter and other devices.
• Applicable environment: Temperature from -35℃ to 85℃, humidity ≤90%
• Material description: 95 alumina high strength ceramics and imported material fuse piece
• Structure process: copper metal is riveted after welding process; The internal quartz sand is processed by solidification to prevent products from falling off in dynamic working conditions and prevent arc spraying which is caused by line faults.
| Product model | Rated current (A) | 1²t (A²s) | Breaking capacity | Power consumption (w) 0.5In |
Mounting bolts/torque | |
| Pre-arc | Fusing | |||||
| SEV28A750-100A | 100 | 1080 | 5250 | 20KA time constant (L/R): 2ms ± 0.5ms |
3.50 | Mounting bolt M8, recommended mounting torque 12N•m |
| SEV28A750-125A | 125 | 3600 | 10950 | 4.20 | ||
| SEV28A750-150A | 150 | 4350 | 16380 | 5.00 | ||
| SEV28A750-200A | 200 | 8250 | 28600 | 7.20 | ||
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