PowerGuard AC Power Distribution Panel — 400 VAC Input, Individual Breaker per Output

The PowerGuard AC Power Distribution Panel (TDG-EDP-0XX) is a military-grade AC distribution panel that takes power from a 400 VAC input and distributes it to connected units in a protected, controlled way. Outputs are provided at 400 VAC and 230 VAC, so three-phase and single-phase loads can be fed from the same panel.

Power from the input line passes through switching elements and overcurrent protection devices as required before reaching the output connectors. Every power output has its own circuit breaker rated for the current of that line. These breakers protect the line against overcurrent and let the operator switch the connected unit on and off by hand. Selected outputs can also be controlled with a 28 VDC or 230 VAC remote on/off signal.

The panel is built from 5000-series aluminium. Bonding between cover and enclosure, together with the EMI gasket on the cover, provides both electromagnetic protection and sealing. The number of outputs, current ratings and protection devices are specified to the customer's requirements.

Electrical:

Front panel:

Main blocks in the wiring diagram:

• Input breaker: Main protection for the incoming 400 VAC line
• Power analyser: Measuring and monitoring the input line
• Surge arrester: Protection against overvoltage
• Phase lamps: L1, L2 and L3 visible from the front panel
• Contactors: Outputs switched by the remote on/off signal
• Neutral bar and terminal blocks: External connections made via 4, 6 and 10 mm² terminal blocks

Environmental and mechanical:

Panel types and part number:

The datasheet gives separate wiring and external connection diagrams for two panel types: ED0 and EDX, which has more output lines. The part number takes the form TDG-EDP-0XX: the first two digits give the panel type (00 for ED0, 01 for the other types) and the last digit gives the paint colour:

• Load distribution at military facilities: Distributing a 400 VAC three-phase supply to connected equipment with full protection
• Mixed load groups: Feeding three-phase loads such as air conditioning alongside single-phase loads such as cameras and UPS units from one panel
• Remote power management: Switching selected outputs on and off centrally with a 28 VDC or 230 VAC signal
• High-altitude sites: Operation up to 3000 m
• Cold and hot climates: −32 °C … +50 °C operating range

Giving every output its own breaker separates protection and control line by line: overcurrent protection is handled per line, and during maintenance or a fault the operator can cut power to the affected unit alone. The remote on/off input lets the same outputs be controlled from the system's control side.

Each panel is configured to the customer: the number of outputs, the current rating of each output, and which lines use switching or overcurrent protection devices are set for the project. The lockable cover, EMI gasket and aluminium enclosure protect against unauthorised access and electromagnetic interference.

For 220 VAC mains/generator selectable distribution see the PowerGuard MAR-2 Power Distribution Panel; for the vehicle DC side see the TDG-EDP-D0X DC Power Distribution Unit.

Corporate assurance: TEDEG Defence is an approved supplier of ASELSAN, Roketsan and the Turkish Ministry of National Defence (MSB), with NATO supplier registration under NCAGE: TM885.