The Type 1 SPD Surge Protective Device 15KA 25KA 50KA is a high-capacity surge protection unit installed at the incoming power supply. It diverts high-energy surge currents directly to ground, limiting residual voltage and preventing equipment damage. When a transient surge occurs, the internal protection components react within nanoseconds, ensuring system continuity and safety.
1.High Surge Handling Capability
Supports 15KA, 25KA, and 50KA discharge levels
High Imax performance up to 200KA ensures resilience during lightning strikes
Designed for harsh grid environments
2.Stable Electrical Performance
The Type 1 SPD Surge Protective Device 15KA 25KA 50KA maintains low leakage current (<20μA) and fast response time, ensuring minimal energy loss and rapid surge diversion.
3.Industrial-Grade Safety Design
IP20 protection level
UL94 V-0 flame retardant housing
Wide temperature range: -40°C to +80°C
The Type 1 SPD Surge Protective Device 15KA 25KA 50KA is widely used in:
Industrial plants and manufacturing systems
Commercial buildings and data centers
Power distribution substations
Renewable energy installations such as solar and wind systems
In real-world deployment, Wzonpa surge protection solutions significantly reduce downtime and equipment replacement costs.
Inspect indicator status regularly
Ensure proper grounding connection (16–25 mm² wire recommended)
Replace module after end-of-life indication
Conduct periodic insulation and tightening checks
Proper maintenance ensures long-term performance of the Type 1 SPD Surge Protective Device 15KA 25KA 50KA.
Compared with standard surge protectors, Wzonpa’s design offers:
Higher discharge capacity and durability
Faster response time for transient suppression
Stronger compliance with international standards
Better adaptability for complex grid conditions
This makes the Type 1 SPD Surge Protective Device 15KA 25KA 50KA more reliable for mission-critical infrastructure.
| Model |
iSCB-15 iSCB1-15 |
iSCB-25 iSCB1-25 |
iSCB-50 iSCB1-50 |
|
| Rated voltage(Un) | [V] | 230/400 | ||
| Maximum continuous operating voltage (Uc) | [V] | 275/385 | ||
| Frequency | [Hz] | 50/60 | ||
| Maximum discharge current (8/20 μ s) Imax | [KA] | 15 | 25 | 50 |
| Rated discharge current (8/20us) In | [KA] | 60 | 100 | 200 |
| Voltage protection level(Up) | [KA] | 15 | 25 | 50 |
| Response time | [KV] | 1.5/2.0 | 1.8/2.4 | 2.0/2.5 |
| Leakage current | [μA] | <20 | ||
| Remote signaling contact | Can be equipped with | |||
| Phase line/neutral line | [m㎡] | 4-6 | ||
| Ground wire | [m㎡] | 16 (Flexible),25(Rigid) | ||
| Protection grade | IP20 | |||
| Flame retardant grade | V(UL94) | |||
| Operation temperature | ≤95% | |||
| Temperature range | [℃] | -40~+80 | ||
| Standard | IEC 61643-11, GB 50057, GB/T18802.1, GB/T18802.11 |
Q1: What is the main function of this SPD device?
A1: It protects electrical systems by diverting surge energy safely to ground, preventing equipment damage.
Q2: Where should the Type 1 SPD Surge Protective Device 15KA 25KA 50KA be installed?
A2: It is installed at the main incoming power supply, typically at the service entrance of a building or facility.
Q3: Can it be used outdoors?
A3: Yes, when installed in a proper enclosure, it is suitable for industrial and outdoor distribution systems.
Q4: How does it improve system reliability?
A4: It reduces surge-related failures, minimizes downtime, and extends equipment lifespan.
Q5: What makes Wzonpa different?
A5: Wzonpa provides high-performance surge protection with strict IEC compliance and stable manufacturing quality as a professional China supplier.
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No. 58 Binhainan Fourth Road, Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province, China
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