Connection box for the electrical connection of a heating cable of types BTV, QTVR, XTV, KTV, or VPL for explosive areas. Operating temperature range -50 degrees Celsius to 56 degrees Celsius. Equipped with four M25 threaded holes, two M25 blind plugs, and M25 plastic fittings for cables with a diameter of 8-17 mm. The connection box is PTB, FM, and CSA certified. Maximum conductor cross-section is 10 mm² for both multi-stranded and single-stranded cables, maximum operating voltage is 480V AC, and maximum continuous operating current per heating circuit is 40A. Note: For temperatures above 40 degrees Celsius, special conditions for safe use must be observed. M25 connection kits, insulation inserts, and mounting brackets must be ordered separately. JBU-100-E.