Integrated Surge Protective Backup Protector
SCSCB15
SPD and backup protection combined in one housing to reduce wiring nodes; power-frequency short-circuit breaking capacity up to 50kA and maximum discharge current up to 100kA.

Product Overview
SPD and backup protection combined in one housing to reduce wiring nodes; power-frequency short-circuit breaking capacity up to 50kA and maximum discharge current up to 100kA.
Core capabilities
Integrated Construction: SPD and backup protection in one housing, reducing wiring nodes and failure points. Power-Frequency Protection: Power-frequency short-circuit breaking capacity up to 50kA prevents fire from degraded SPDs. Strong Surge Capacity: Maximum discharge current up to 100kA (8/20μs).
Data Generated
Product Features
Integrated Construction
SPD and backup protection in one housing, reducing wiring nodes and failure points
Power-Frequency Protection
Power-frequency short-circuit breaking capacity up to 50kA prevents fire from degraded SPDs
Strong Surge Capacity
Maximum discharge current up to 100kA (8/20μs)
Fast Response
Completes energy discharge within ≤50ns
Smart Maintenance
Local failure indication plus optional remote signalling alarm
Wide Temperature Range
Operating ambient temperature from -40℃ to +80℃
System Topology
Technical Parameters
Technical Data
Rated operating voltage 230/400V AC Operating frequency 50/60Hz Maximum continuous operating voltage Uc 275V / 385V AC Nominal discharge current In Up to 40kA Maximum discharge current Imax 20 / 40 / 60 / 80 / 100kA Voltage protection level Up 1.5kV (Uc=275V) / 1.8kV (Uc=385V)
| Rated operating voltage | 230/400V AC |
| Operating frequency | 50/60Hz |
| Maximum continuous operating voltage Uc | 275V / 385V AC |
| Nominal discharge current In | Up to 40kA |
| Maximum discharge current Imax | 20 / 40 / 60 / 80 / 100kA |
| Voltage protection level Up | 1.5kV (Uc=275V) / 1.8kV (Uc=385V) |
| Response time | ≤50ns |
| Power-frequency short-circuit breaking capacity | 15kA / 25kA / 50kA |
| Power-frequency short-circuit operating current | 3A |
| Power-frequency disconnection time | 0.3s |
| Power-frequency current disconnection cycles | 1000 cycles |
| Poles | 1P / 2P / 3P / 4P |
| Maximum conductor cross-section | 6~25mm² |
| Ambient temperature | -40℃ ~ +80℃ |
| Dimensions | 87.5×81.5×18mm (single pole) |
| Mounting | Standard 35mm DIN rail |
Installation Instructions
Standard 35 mm DIN rail mounting; terminals: supply side L1/L2/L3, N, PE, communication and signal terminals as marked on the device.
Key Points
FAQ
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Learn MoreIntegrated Surge Protective Backup Protector Application Scenarios
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