The utility model discloses a low pressure bank electric mortiser seat -box, this low pressure bank electric mortiser seat -box through the fixed structure of incasement setting voltage transformer, current transformer, transformer, electric energy meter, the switch that soaks, lightning protection device, controller, relay, circuit breaker, quick connector socket, travel switch, control panel and offer the visual window that is used for reading the electric energy meter registration on the chamber door, will the reach port high -speed joint of boats and ships and bank base electric wire netting of realization, safe and reliable, convenient to use, just the utility model discloses a low pressure bank electric mortiser seat -box structural configuration is comparatively compact, and the wiring is clear, simple to operate, and the debugging is simple, and the harbour or the pier that can extensively be used for low pressure type boats and ships to berth are applicable to on the ship electricity system and connect with bank base power for 380V50Hz or 440V60Hz's boats and ships, and the use is got up comparatively ideally.