Use with DC Power Supply and Battery Pack for UPS Applications​

Power Supplies - 48VDC UPS Battery Charge Controller Module
48VDC UPS Battery Charge Controller Module

RLH 48VDC DIN rail mount charge controllers are compact units designed to work with a DC power supply (such as the RLH DIN rail power supplies) and a backup battery to provide uninterruptible power in the event of a power outage.

The charge controller continuously maintains the correct charge level on the battery and ensures a seamless power transition to battery power when needed for a complete UPS power supply solution.


  • Parallel connection to DC bus
  • Suitable for 48VDC systems up to 30A
  • Cooling by free air convection
  • Can be installed on DIN rail TS-35/7.5 or 15
  • Built-in battery test function
  • Battery polarity protection
  • Relay contact signal output and LED indicators for DC Bus OK, Battery Fail and Battery Discharge
  • Convenient screw down terminals
  • 6 inch DIN rail is included
  • Made in USA

Powder coated steel

H 4.9 x W 2.2 x D 3.9 (H 125.2mm x W 55.5mm x D 100mm)
Not including DIN bracket

Mounting Style:
Standard DIN rail (TS-35/7.5 0r 15) or wall mount. DIN rail section included

Operating Temperature:
-20° to +70°C (-4°F to +158°F)

DC Input / DC Bus:
48 ~ 55V, 30A

Battery Output:
1A Charging Current
7AH Battery Array Maximum

Relay Contact Rating (Max):
30VDC, 1A (max.)

General Information
DC Bus Backup Connection for UPS
DC Bus Backup Connection for UPS
48VDC UPS Battery Charge Controller Module
UPS Block


Lead Time: 1 to 2 Weeks*

For product questions, volume pricing and/or delivery outside of the US and Canada, please contact sales.


48VDC UPS Battery Charge Controller Module

Short descriptionPart numberPrice
48 Volt DC Battery Charge Controller, 1A Max Battery Charging Current, 30A Maximum LoadRLH-UPS-48-30-01$325.00

*Lead times are estimates and may vary. You will be contacted within 1 business day to go over the details of your order. If you require a specific date, let us know!
*Days = Business Days

WarningWarning: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to