Power Function Manager, 12V DC, 24 DC and 48V DC, 500 Amps, model PFM-500, intregrates power supplies into a fully integrated and multifunctional power system by Newmar Powering the Network

Integrates 12, 24, or 48 VDC Rack Mount DC Power Supplies into Fully Functioning DC Power Systems, 500 Amps.

The Power Function Manager (PFM-500) is a system integrating component which converts ordinary power supplies (or Power Modules) into a fully integrated and multifunctional power system. The unit provides for control, monitoring, paralleling and protection of 12, 24 or 48 VDC, positive negative or floating ground power sources.

A 500 amp, heavy duty parallel tie point bus accommodates input from multiple/redundant rectifiers. A digital meter displays system bus voltage, battery voltage, total rectifier amperage, connect/disconnect voltage set points, and system ambient temperature. Features also include status lights, load distribution circuits, low voltage battery disconnect with alarm contacts. All these functions are combined in a compact, rackmount housing which serves as a master DC power management and distribution center. A rackmount ground/return bus is provided.

The PFM may be used for integration, control, monitoring and protection of numerous different types of power sources, such as AC-DC rectifiers, regulated power supplies, DC-DC converters and battery banks.


Specifications: Power Function Manager – PFM-500

Model Nominal Input/Output VDC Circuit Breaker Capacity
PFM-500 12, 24, or 48 pos. or neg. ground 5 (PBA Series)

Features

  • Provides parallel tie point for DC power modules; simplifies wiring
  • 12, 24 or 48 VDC input/output; can be used with virtually any DC system
  • Use with positive, negative or floating ground; no need to stock multiple units
    to meet different site requirements
  • Digital meter displays: system bus voltage, battery voltage, total rectifier amperage,
    connect/disconnect voltage set points, and system ambient temperature
  • Up to five isolated distribution circuit breaker capacity with â��BREAKER TRIPâ�� alarm
    contacts; easy front panel plug-in installation. Breakers sold separately
  • Alarm LED (summary) indicates impending LVD disconnection, Power Module output
    fail or load circuit breaker trip
  • Summary alarm contacts (form C) allow remote monitoring of system status in the
    event of extended AC power loss
  • Manual battery disconnect switch allows service/replacement of batteries without system shutdown
  • High current output bus for wiring main system load or for feeding an external distribution panel
  • Ground bus provided
  • Low voltage battery disconnect protects batteries in the event of extended AC power loss

Overall Performance

Input/Output: 12, 24 or 48 VDC nominal, positive or negative ground
Voltage Range: 8 – 65 VDC
Grounding: Positive or Negative (Polarity insensitivity)
Maximum Total Current Capacity: 500 amps (max. 6 power supply/modules maximum)
Temperature Rating: 0° C to +60° C

Protection

  • Five branch circuit breakers (optional)
  • Low voltage battery disconnect (See LVBD Specifications below)

Mechanical/General

  • Heavy duty plated copper bus bar
  • Powder coated aluminum chassis
  • 19″ or 23″, 2 RU, flush or 6” forward rackmount

Case Size

Inches Centimeters Weight
H W* D H W* D lbs Kg
3.5 17 20.5 13.5 43.2 52.1 20 9.1
*19” and 23” mounting brackets provided

Indicators/Alarms

  • “ALARM” (summary) L.E.D. indicator (Red)
  • Digital volt/amp meter (selectable)
  • Form C summary alarm contacts; provide for monitoring of up to six inputs from equipment with either Form C or Normally Open contacts. Typical indications include Power Module failure, LVBD activation, breaker mid-trip condition
  • A separate set of Form C contacts are provided for pre-LVD activation

Rear Panel

Rear View of Power Function Manager, 12V DC, 24 DC and 48V DC, 500 Amps, intregrates power supplies into a fully integrated and multifunctional power system by Newmar Powering the Network

Low Voltage Battery Disconnect Specifications

Factory set actuation voltages:

12 VDC 24 VDC 48 VDC
Connect 10.4V 21.0V 42.0V
Disconnect 12.0V 24.5V 49.0V

Factory default LVD pre-disconnect warning alarm threshold (adjustable):

12 VDC 24 VDC 48 VDC
LVD Pre-Disconnect 11.2V 26.2V 45.5V

 

Circuit_BreakerOptions:

  • Plug-in mid-trip circuit breakers with auxiliary contacts that activate “CHECK SYSTEM” indicator and summary alarm contacts. Available Amperages:
    • 5, 10, 15, 20, 30, 40, 50, 75, 100 (specify model PBA-5, PBA-10, etc.)
  • Quick connect DC wiring harness for use with Newmar 1 KW Power Modules; QCK-3, CCK-4
  • Rear Rack Covers: RRC-7-19 or RRC-7-23 (click here)
  • Power Modules
  • Additional Distribution: Model DST-10 (UL) or DST-20A(UL)

Rack Mount Power Module Series, 12V DC, 24V DC 48V DC, 10 Amps to 80 Amps with Power Function Manager, model PFM-500, by Newmar Powering the Network image

PM/PFM System