System Power Guidelines

12-48 VDC 20 A DeltaV Bulk Power Supply Redundancy Module

Installation notes

Specifications

Table: 12-48 VDC 20 A DeltaV Bulk Power Supply Redundancy Module
Item Specification

Input voltage

12-48 VDC ±25%

Input voltage range

9-60 VDC

Input current

  • 2x 0-10 A continuous
  • 2x 0-16 A for 5 seconds

Output current

  • 0-20 A continuous
  • 20-32 A for 5 seconds
  • 25 A at continuous overload/short circuit

Input to output voltage drop

  • 0.78 VDC at 2x 5 A input (typical)
  • 0.85 VDC at 1x 10 A input (typical)
  • 0.85 VDC at 2x 10 A input (typical)

Power losses

  • 0 W at no load (typical)
  • 7.8 W at 2x 5 A input (typical)
  • 8.5 W at 1x 10 A input (typical)
  • 17 W at 2x 10 A input (typical)

Temperature range

-40°C to +70°C operational

Relative humidity

5 to 95%, non-condensing

Shock

15 g half sine wave for 6 ms, 10 g half sine wave for 11 ms

Vibration

1.6 mm peak to peak from 2 to 17.8 Hz, 2 g from 17.8 to 500 Hz

Derating

0.5 A /°C at +60°C to +70°C

Dimensions

Height: 12.4 cm (4.9 inches)

Width: 3.2 cm (1.25 inches)

Depth: 10.2 cm (4.0 inches)

Terminals and wiring

Bistable, quick-connect spring-clamp terminals with IP20 finger safe construction are used. The terminals are shipped in the open position and are suitable for field installation. Use wire that complies with local codes and regulations.

Wire type

Input and output spring-clamp terminals

Solid wire

Maximum wire gauge: 6 mm2; 10 AWG

Stranded wire

Maximum wire gauge: 4 mm2; 11 AWG

Connectors

Figure: Connectors on the 12-48 VDC 20 A DeltaV Bulk Power Supply Redundancy Module


Wiring for redundancy

The 12-48 VDC 20 A DeltaV Bulk Power Supply Redundancy Module can be used in one-to-one and n-to-one applications.

Note

For both one-to-one redundancy and n-to-one redundancy, it is recommended that, if possible, you use separate mains systems for each power supply.

Figure: Wiring for one-to-one redundancy at up to 10 A


Figure: Wiring for n-to-one redundancy at up to 30 A