Voltage Arrester Device, Model CHLT40PV Description This CHLT40PV voltage arrester device protects DC circuits from transient overvoltage and surge events. Designed for quick response and reliable performance, it is suitable for solar PV arrays, energy storage systems, and other DC power installations where protection up to 1000 V DC is required. Key features Model: CHLT40PV, item type: Voltage Arrester Device Maximum continuous working voltage: 1000 V DC Nominal discharge current: 20 kA (8/20 us) Maximum discharge current: 40 kA (8/20 us) Voltage protection level up: 3.2 kV Poles: 3 poles Protection rating: IP20 Operating conditions: 40 C to 80 C, humidity up to 90 percent average at 25 C Modular design for simple installation and easy maintenance Fast surge response to reduce stress on connected equipment Benefits and why you need it Fast surge suppression: Responds instantly to transient voltage spikes to reduce the risk of damage to inverters, charge controllers, batteries, and other DC equipment. discharge capacity: 20 kA nominal and 40 kA maximum discharge ratings provide robust handling of common surge events. Modular and serviceable: A modular layout simplifies installation, inspection, and replacement without major system downtime. Wide environmental tolerance: Operates across a broad temperature and humidity range for reliable performance in varied installation environments. Typical applications Solar photovoltaic string combiner boxes and PV inverters protection Battery energy storage systems and DC distribution panels Industrial DC power systems and telecom DC cabinets Installation and safety notes Always cut power before installation; live installation is strictly prohibited. Connect according to the installation diagram: connect the positive conductor to the positive terminal and the negative conductor to the negative terminal. Do not reverse connections. After installation, close the automatic circuit breaker and verify normal operating status. Package contents 1 x Protection Device (CHLT40PV) 2 x Insert Technical summary Model: CHLT40PV Max continuous working voltage: 1000 V DC Nominal discharge current: 20 kA, 8/20 us Max discharge current: 40 kA, 8/20 us Voltage protection level up: 3.2 kV Poles: 3 Protection class: IP20 Operating temperature: 40 C to 80 C Humidity: 90 percent average at 25 C This device provides a practical surge protection solution for DC power installations where fast response, modularity, and discharge capability are required.