Model 2P40KA — Wholehome Surge Protector and Voltage Stabilizer Protect your electrical system from lightning strikes, transients, and harmful voltage swings with this modular 2pole protective device. Designed for 36 mm DINrail installation, it combines fastacting surge protection and an automatic voltage regulator to safeguard household, commercial, and light industrial equipment. Key benefits Comprehensive protection: performance MOVs and precision voltage detection defend against lightninginduced surges and transient overvoltages while the regulator responds to undervoltage and overvoltage events. Reduced equipment downtime: The device disconnects power during unsafe voltage conditions and automatically reconnects when voltages to normal, helping prevent damage and extend equipment lifespan. Easy installation and maintenance: 2pole, 36 mm DINrail mounting fits standard distribution panels and Homelinecompatible panels. Modular plugandplay modules allow quick replacement without rewiring. Durable enclosure: Flameretardant polycarbonate housing resists temperatures and reduces fire risk for reliable, longterm operation. Features Model size: 2P40KA Available types: #1 10/20KA nominal/maximum discharge rating; #2 20/40KA nominal/maximum discharge rating (optional) Nominal discharge current: 10KA for type 1, 20KA for type 2 Maximum discharge current: 20KA for type 1, 40KA for type 2 Continuous operating voltage Uc: 1000V Rated connectivity and segmentation ability: 1M Installation: 2pole guide rail mounting for 36 mm DINrail systems Housing material: Flameretardant polycarbonate (PC) Dimensions: 90 x 49 x 36 mm (3.5 x 1.9 x 1.4 in) Weight: 260 g (9.2 oz) What it does Surge suppression: Metaloxide varistors clamp energy transients and lightning surges to protect connected devices. Voltage regulation and protection: Detects undervoltage and overvoltage conditions and disconnects supply to prevent damage. The unit reconnects automatically after voltage stabilizes. Modular maintenance: Individual modules are replaceable without rewiring, minimizing service time and disruption. Package contents 1 Protective Device Typical applications Residential distribution panels: Install on the main DINrail to protect home appliances, HVAC systems, and electronics from surges and unstable supply. Small commercial sites: Protect pointof equipment, network hardware, and lighting circuits in shops and offices. Light industrial installations: Provide surge and voltage protection for control panels and sensitive machinery in small workshops. Compatibility and installation notes Fits standard 36 mm DINrail distribution panels and Homelinecompatible panels. 2pole design saves panel space and installs alongside circuit breakers for integrated protection. For correct selection, choose type 1 or type 2 based on expected surge exposure and required nominal and maximum discharge currents. This device offers a practical combination of surge suppression, voltage regulation, and easy maintenance to maintain stable, safe power throughout a property while minimizing time and protecting critical equipment.