Amphenol 250A Dual-Feed TPA Fuse Panel

Power Distribution

Amphenol 250A Dual-Feed TPA Fuse Panel


The Amphenol Network Solutions 250TPA08/nrg250TPA08 are 250A dual-feed 8/8 position TPA fuse panels featuring ±12/±24/±48V operating voltages to serve both legacy and “next-gen” network applications. Engineered into a standard 1RU footprint, each circuit supports up to 50A TPA fuses in each position, providing ample front view capacity for distribution to a broad range of components. Advanced circuit level monitoring features are available as an option. The panel is available in standard terminal block outputs or connectorized outputs. This platform provides front access to TPA fuses with alarm on/off switch configuration for uninstalled fuse locations. Also featured are front LED indicators for power/fuse alarms and monitoring status, and rear connections for form C relay alarms (and optional nrgSMART controller connections). Each of the 250A feeds provide power for up to eight output positions. The panel includes removable 1RU fuse holders. These 1RU fuse holders feature an ergonomic front grip for easy removal, sliding top cover to protect the fuse from above, and red alarm plunger to indicate a failed fuse. Field replaceable TPA fuses are available from 5A to 50A per position. The panel supports universal voltages (±12VDC to ±48VDC).

Features & Benefits

  • Universal voltage (±12VDC, ±24VDC and ±48VDC) enables standardization on a single part number formultiple voltages
  • Up to 50A fuses for distribution to a variety of network elements
  • UL and NEBS compliant to ensure industry-standard safety and functional requirements
  • Form C relay contacts provide reliable alarm connections
  • Integrated designation card holder for simple power identification
  • Fail alarm LEDs indicate fuse and power failures
  • Clear, flame-retardant polycarbonate cover (94V-0) protects input and output power connections andwiring from damage
  • Either vertical feed inputs and staggered output terminal blocks facilitate waterfall cable management orhorizontal feed inputs and output connectors allows cables to exit straight back from the panel
  • Optional Individual Circuit Monitoring provides high accuracy, 100% passive monitoring
  • Collect feed voltage, circuit current and temperature
  • Data is collected and sent to a customer's network management system via SNMP and MODBUS