ESS-20 (NSSRS)
DC Auxiliary distribution cabinets
Techniniai parametrai
Nominal voltage:
≤ 400V
Rated current:
≤ 250A
Rated frequency:
50Hz
Degree of protection:
IP2X-IP4X
Altitude above sea level:
≤ 2000 m
Ambient temperature:
'-35...+35°C
Relative humidity:
≤ 100% (at +25°C)
Ventilation:
Savaiminis/Priverstinis
Basic Information
Description
Designed to provide uninterrupted direct current voltage (24–220 V) for auxiliary needs (device control); Battery chargers powered from the AC panel, which in normal mode supply DC users and charge the battery in standby mode; Chargers include features such as automatic switching between charging and standby modes, charging current limiting function, and signaling for charging current interruption, grounding, and maximum/minimum output voltage.
Enclosure:
Cabinet enclosures are made from hot-dip galvanized profiles and DX51D+Z275 sheet steel, with a thickness of 1–2 mm. They are painted with standard RAL7032 color (other colors can be applied according to the project). The cabinets are connected to each other using connection bolts. The cabinet enclosures are constructed from hot-dip galvanized profiles and sheet steel. These are assembled structures with surfaces coated in durable powder coating. Doors have hinges, and locks are made of stainless steel. The cabinets are prepared for interconnection and feature lifting lugs. Current and voltage measuring instruments and control buttons can be mounted on the doors. Automatic circuit breakers and fuse-switch blocks can be installed inside the cabinet or positioned so that their front parts and control handles are on the outer side of the cabinet doors.
Standards:
LST EN 61439-1
