KSPD-2P-AC 2-Pole 385V AC Surge Protective Device

• KSPD-2P-AC is a surge protective device designed for AC electrical systems, featuring a 2-pole (2P) configuration and a maximum continuous operating voltage of Uc 385V AC. The product is designed to reduce the effects of transient overvoltages on power lines, including lightning-induced surges and other temporary voltage spikes, helping protect the electrical system and connected equipment downstream.
• The 385V version has a nominal discharge current (In) of 20kA, a maximum discharge current (Imax) of 40kA, and a voltage protection level (Up) of ≤ 2.0kV.
• The device features a plug-in/removable surge protection module, making inspection, maintenance, and replacement easier. Each module has a status indicator window. Under normal operating conditions, the indicator is green. When it turns red, the surge protection module needs to be checked and replaced.
• The device features dual thermal and overcurrent protection and can also be configured with a remote signaling interface to monitor its operating status. The KSPD-2P-AC is suitable for single-phase AC electrical systems and can be installed in main electrical panels, distribution boards, residential electrical systems, offices, shops, commercial buildings, and other electrical systems that require additional surge protection. This type of device can also be used in renewable energy systems such as wind and solar power systems.
• During installation, the surge protective device is connected in parallel with the power supply. Disconnect the power before installation. It is recommended to install an upstream fuse or circuit breaker (CB) for protection. Ensure that the connecting wires are short, straight, securely connected, and have minimal bends to maintain proper operating conditions.

Specifications

• Model: KSPD-2P-AC
• Device Type: AC Surge Protective Device (SPD)
• Number of poles: 2P
• Electrical System: Single-Phase AC
• Maximum Continuous Operating Voltage (Uc): 385V AC
• Nominal Discharge Current (In): 20kA
• Maximum Discharge Current (Imax): 40kA
• Voltage Protection Level (Up): ≤ 2.0kV
• Module Type: Plug-in/Removable Module
• Status Indicator Green – Normal; Red – Replacement Required
• Protection Mechanism Thermal and Overcurrent Protection
• Monitoring Capability Optional Remote Signaling Interface
• Connection Method Connected in Parallel with the Power Supply
• Connection Terminals (2P Version) L – N
• Installation Requirements Short, straight, securely connected wires with minimal bends

• Model: KSPD-2P-AC
• Device Type: AC Surge Protective Device (SPD)
• Number of poles: 2P
• Electrical System: Single-Phase AC
• Maximum Continuous Operating Voltage (Uc): 385V AC
• Nominal Discharge Current (In): 20kA
• Maximum Discharge Current (Imax): 40kA
• Voltage Protection Level (Up): ≤ 2.0kV
• Module Type: Plug-in/Removable Module
• Status Indicator Green – Normal; Red – Replacement Required
• Protection Mechanism Thermal and Overcurrent Protection
• Monitoring Capability Optional Remote Signaling Interface
• Connection Method Connected in Parallel with the Power Supply
• Connection Terminals (2P Version) L – N
• Installation Requirements Short, straight, securely connected wires with minimal bends