Surge Protective Device AC Surge Protector Intelligent Surge Protection Device SPD

Quick Detail:

1. SPD,surge protector

2. protect against lightning surge voltages in solar system (photovoltaic power supply system)

Description:

The Advanced Multi-Pole Surge Protector: Engineering Resilience for Modern AC Power Systems

In the interconnected landscape of contemporary electrical infrastructure—from sophisticated industrial facilities and commercial data centers to essential municipal buildings and residential complexes—the integrity of AC power distribution is paramount. This network is perpetually vulnerable to transient overvoltages, stealthy pulses of destructive energy generated by lightning strikes, grid-switching events, or the operation of heavy machinery. A single significant surge can cascade through a system, resulting in the catastrophic failure of sensitive electronics, crippling operational downtime, and substantial financial loss. This advanced multi-pole Surge Protection Device (SPD) series is engineered as the definitive solution to this omnipresent threat. Meticulously designed to meet and exceed international safety standards, it represents not just a protective barrier, but a sophisticated investment in system continuity, asset preservation, and operational peace of mind for AC power applications from 230V to 420V.

Uncompromising Core Protection: High Discharge Capacity and Low Voltage Clamping

The fundamental purpose of an SPD is to act as a pressure valve for electrical systems, and this series excels with its tiered and robust performance metrics. Available with Nominal Discharge Current (In 8/20µs) ratings from 10 kA to a formidable 60 kA, the product line offers a tailored solution for various risk levels, from standard commercial buildings to high-exposure industrial sites. For extreme surge events, the Maximum Discharge Current (Imax 8/20µs) extends from 20 kA up to an exceptional 100 kA. This immense capacity ensures the device can safely divert the most intense transient energies to ground without degradation. Crucially, this robust protection is coupled with a superior Voltage Protection Level (Up) as low as 1.5 kV. This low clamping voltage is the key to safeguarding connected equipment; it ensures that during a surge, the residual voltage passing through to sensitive devices—such as PLCs, servers, medical imaging machines, or manufacturing robots—remains within safe operational limits, thereby preventing damage and extending asset lifespan.

Engineered for Global Standards and Universal Application

Certified to IEC 61643-1 and GB 18802.1, this SPD series is built to globally recognized benchmarks for performance and safety. This dual compliance guarantees reliability for both international and domestic projects. Its design accommodates a wide spectrum of common AC power systems, with a Maximum Continuous Operating Voltage (Uc) covering 275V, 385V, and 420V, supporting standard single-phase and three-phase networks. Available in 1P, 2P, 3P, and 4P configurations, it provides complete flexibility for protecting between line-neutral and line-earth in various system grounding configurations (TN-S, TN-C-S, TT). This versatility makes it a single-sourced solution for protecting entire distribution boards, from main incoming lines to critical sub-circuits.

Robust Construction for Demanding Environments and Safe Installation

True resilience is proven under harsh conditions. This SPD is engineered for exceptional environmental endurance, with an operating temperature range of -40°C to +85°C. This ensures stable, reliable performance in freezing outdoor substations, unheated warehouses, or sweltering industrial plant rooms, where lesser devices might fail. Safety and durability are further embedded in its physical design. The outer covering is constructed from flame-retardant nylon (UL94 V-0 rated), significantly reducing fire risk. For secure and standardized integration, it features 35mm DIN rail mounting, allowing for quick, organized installation in any distribution panel. The electrical connection specifications are clearly defined, supporting a maximum connection line of 35mm² (hard or stranded copper) with a recommended 16-25mm² for optimal balance of performance and practicability, ensuring both high-current handling and ease of termination.

Ultra-Fast Response and System Integration

In the nanosecond world of electrical transients, speed is non-negotiable. This device boasts an exceptionally fast response time of less than 25 nanoseconds. This near-instantaneous reaction ensures the SPD activates before a surge wave can penetrate deeper into the system, providing the first and most critical line of defense. The design inherently considers seamless integration into broader electrical protection schemes. Its clear performance characteristics (In, Imax, Up) allow for precise coordination with upstream and downstream protective devices, facilitating the creation of a reliable "cascaded" protection strategy that manages energy coordination effectively, ensuring the SPD handles the bulk energy while downstream devices are spared.

Conclusion: The Foundational Pillar of Electrical System Integrity

This advanced multi-pole SPD series is far more than a reactive component; it is a proactive, strategic foundation for any modern electrical installation. By synthesizing high-capacity surge diversion, low let-through voltage, unwavering standards compliance, and rugged environmental tolerance into a versatile, easy-to-install package, it delivers a comprehensive solution for mitigating electrical risk. For facility managers, it protects against unexpected capital expenditure and business interruption. For design engineers, it provides a reliable, certified component that simplifies system design. For asset owners, it is an indispensable insurance policy for their electrical infrastructure. In an era defined by digital dependence and automation, ensuring power quality and system uptime is critical. This surge protector stands as a vigilant guardian, engineered to ensure that the disruptive power of electrical transients is never allowed to compromise the continuity, safety, and productivity of your operations. It is the essential, non-negotiable element for building resilient and future-proof electrical systems.

Applications:

WD1-C40series surge protection device(in-short-SPD, alias:surge ssuppressor surge arrester) is suitable for TN-S, TN-C-S,TT,IT etc,power supplysystem of AC 50/60Hz,<380V,installed on the Joint-of LPZ1orLPZ2 and LPZ3.It's designed according to lEC61643-1,GB18802.1,it adopts 35mm standard rail, there is a failure release mounted on the module of surge protection device, when the SPD fails in break down for over heat and over-curreent, the failure release will help electric equipments separate from the power supply system and give the indication signal, green means normal, red me:ans abnormal,it also could be replaced for the modulewhen has operating voltaage.