Junction box installation costs $100 to $300 for parts and labor, depending on the installation location, accessibility, and the electrical box size, material, and indoor or outdoor rating. Plastic junction boxes for indoor wiring cost 50% to 80% less than metal boxes but. IP65 junction box is resistant to dust and water, the protection class is IP65, plastic housing is highly flame retardant and well insulated, corrosion resistant, anti-static, good sealing performance, long operating time. Junction box IP65 features: IP65 junction box holes can be drilled inside. Junction box costs range from low‑price indoor models ($10‑$60) to weatherproof units ($70‑$450), with installation averaging $100‑$300 depending on location and materials. Junction box cost can vary much more than many buyers expect. The final price depends not only on the box itself, but also on. Our products range includes simple flush-mounted switch boxes to surface-mounted boxes for indoor use, as well as high-end IP65 junction boxes for use in wet areas. Kopp also offers accessories such as spring covers, screws for switch boxes, and cavity wall switch boxes and plaster adjustment. PREMIUM CONSTRUCTION POWER DISTRIBUTION BOX: Crafted by WESTERN, the 6506TLSX Temp power box features a durable blend material for long-lasting performance in demanding environments. Need help? Browse power distribution boxes with circuit breaker protection and multiple outlet configurations. Shop. erformance while lowering environmental impact. ABB in India serves customers in process, manufacturing and consumer industries, utilities, the oil & gas sector and infrastructure markets thr ney and high levels of quality and reliability.