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Product Overview
Buildings equipped with external Lightning Protection Systems (LPS), such as rooftop lightning rods or exposed telecommunication masts, are highly susceptible to partial lightning currents entering the main electrical grid. Standard circuit breakers cannot stop these microsecond, high-energy voltage spikes. The CHNAILE Heavy-Duty 4-Pole Type 1+2 Surge Protective Device (SPD) is explicitly designed to clamp and divert this catastrophic energy safely to the earth. By combining Class I (direct strike) and Class II (induced surge) protection into a single compact DIN-rail unit, this AC 275V/400V arrester delivers ultimate transient overvoltage protection, safeguarding multi-million-dollar server racks, PLCs, and medical imaging devices from irreversible dielectric breakdown.
Technical Parameters
Device Category: | Surge Protective Device (SPD) / Lightning Arreste |
|---|---|
Protection Class: | Type 1 + Type 2 (Class I+II Combined) |
Poles Configuration: | 4P (3-Phase + Neutral configuration) |
Max Continuous Operating Voltage (Uc): | AC 275V |
Impulse Discharge Current (Iimp, 10/350μs): | 15kA per pole (Direct lightning strike capacity) |
Max Discharge Current (Imax, 8/20μs): | 120kA per pole (Induced surge capacity) |
Nominal Discharge Current (In): | 60kA |
Voltage Protection Level (Up): | ≤ 2.2kV (Limits surges to safe equipment levels) |
Status Indication: | Visual Window (Gray: OK → Red: Defect) |
Standard Compliance: | CE, IEC/EN 61643-11 |
1. Elite Dual-Stage Lightning Defense
15kA Direct Strike Immunity (10/350μs): The 10/350μs waveform represents the massive, sustained energy of a direct lightning strike. The internal heavy-duty spark gaps and high-energy MOVs (Metal Oxide Varistors) are engineered to safely channel up to 15,000 Amps of raw lightning plasma directly to the ground system, preventing structural fires at the power entry point.
120kA Transient Surge Absorption (8/20μs): In addition to direct strikes, this combined unit handles severe grid switching transients and induced secondary lightning surges. It instantly clamps high-voltage spikes, absorbing an astonishing 120,000 Amps to protect sensitive downstream microprocessors.
Low Voltage Protection Level (Up ≤ 2.2kV): Despite absorbing colossal energy, the SPD efficiently clamps the residual let-through voltage to a maximum of 2.2kV, ensuring the insulation of connected commercial equipment is never breached.
2. Specialized Maintenance & Structural Engineering
Pluggable Hot-Swap Architecture: SPD modules sacrifice themselves over time to protect your equipment. The CHNAILE SPD features a two-piece design with a fixed DIN-rail base and removable protection cartridges. This allows maintenance technicians to quickly swap out a depleted module without disconnecting the main power supply, ensuring zero operational downtime.
Visual Degradation Diagnostics: Each of the four poles is equipped with a distinct mechanical status window. Under normal operation, the window displays Gray (OK). When the internal MOV components are depleted due to repeated lightning strikes, the window triggers to Red (Defect), providing an immediate, unmistakable visual cue for module replacement.
Flame-Retardant Thermoplastic Base: Molded from premium, V0-rated insulating polymers, ensuring the enclosure will not ignite or warp when absorbing the immense thermal energy generated during a mega-surge diversion.
3. Target Application Scenarios
Due to its combined Type 1+2 architecture and massive 15kA (10/350μs) rating, this SPD is mandatorily specified by international building codes for:
Telecommunication Base Stations: Shielding highly exposed, remote 5G cellular towers and broadcasting masts from devastating direct atmospheric discharges.
Commercial Main Distribution Boards (MDB): Serving as the primary point-of-entry overvoltage defense for hospitals, shopping malls, and corporate headquarters equipped with external lightning rods.
Renewable Energy Installations: Protecting the main AC grid-tie connection points of large-scale solar photovoltaic farms and wind turbine base stations.
Heavy Industrial Facilities: Defending automated factory PLCs and robotic assembly lines against severe switching surges generated by heavy motor starting and stopping.
4. Global B2B Partnership with CHNAILE Factory
Factory-Direct Lightning Protection: Bypassing intermediary trading networks allows us to offer aggressive wholesale pricing on premium Class I+II SPDs, significantly lowering the BOM for your EPC lightning protection projects.
Rigorous IEC 61643-11 Impulse Testing: We do not gamble with atmospheric physics. Every SPD batch is subjected to brutal 10/350μs and 8/20μs impulse current generator testing in our high-voltage laboratory to ensure 100% clamping reliability before global export.
Custom OEM Solutions for Integrators: We provide comprehensive white-labeling services, including custom-colored plug modules, personalized laser-printed specifications, and bespoke remote-signaling contact integration to match your proprietary surge protection brands.
