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Black Box DIN rail redundant power supply unit with finger-safe terminals and LED indicator

Black Box Corporation

Black Box Corporation DIN Rail Industrial Redundant Power Supply 85-264VAC

SKU CH-RC3J-MG520

DIN-rail redundant power supply with universal 85-264 VAC input, LED status indication, finger-safe terminals and extended -4 to 158°F operating range

  • TypeRedundant Power Supply
  • Redundant supply keeps equipment running if one unit fails
  • Universal 85-264 VAC input works worldwide without extra adapters
  • Operates from -4 to +158°F for harsh industrial environments
  • Finger-safe terminals prevent accidental contact during maintenance
  • Built-in short-circuit, overload and over-voltage protection safeguards connected devices
  • cUL and CE approvals confirm compliance with international safety standards

DIN-Rail Redundant Power Supply

This DIN-rail redundant power supply delivers continuous DC power for industrial control cabinets and automation systems. The universal 85-264 VAC input accepts global mains voltages without manual switching. An LED indicator confirms DC output at a glance. cUL and CE approvals support compliance in regulated environments.

Installation and Common Issues

The unit snaps onto standard DIN rail and uses finger-safe terminals for tool-less wiring. Technicians should verify polarity before energising because reversed connections can trip the internal protection. Overload or short-circuit events trigger automatic shutdown; the supply recovers once the fault is cleared. Ensure adequate airflow around the module to maintain the rated temperature envelope.

Pre-Order Checks

Confirm that your cabinet provides DIN-rail mounting space and that the incoming mains voltage falls within the 85-264 VAC range. The device also tolerates 120-370 VDC sources, though this path is not certified. Verify that the operating ambient temperature stays between -4 and +158 °F. Check that the required DC output voltage and current match the load specifications.

Punti di forza

  • Redundant supply keeps equipment running if one unit fails
  • Universal 85-264 VAC input works worldwide without extra adapters
  • Operates from -4 to +158°F for harsh industrial environments
  • Finger-safe terminals prevent accidental contact during maintenance
  • Built-in short-circuit, overload and over-voltage protection safeguards connected devices
  • cUL and CE approvals confirm compliance with international safety standards

Caratteristiche tecniche

TypeRedundant Power Supply

Domande su questo articolo

How can I confirm the Black Box DIN Rail Industrial Redundant Power Supply is operating correctly once installed?

The front-panel LED shows DC power is present, so a lit LED after wiring confirms the unit is delivering output.

What ships with the Black Box DIN Rail Industrial Redundant Power Supply and what must I source separately?

The supply itself arrives with finger-safe terminals fitted; you must provide the 85-264-VAC or 120-370-VDC feed wiring and DIN rail mounting hardware.

Which input-voltage range should I choose for a panel fed from a 120-VDC battery bus?

The unit accepts 120-370-VDC (not certified for that range) in addition to 85-264-VAC, so the single model covers both AC and DC sources.

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