OPUS HE 7U Up to 6KW

Convection Cooled – Modular Battery Charger For Industrial Applications

The new OPUS HE 7U is a high-efficiency rack-mount DC power system that is designed for critical infrastructure applications such as telecommunications, process industries, railway signalling and substations, and transmission and distribution substations.OPUS HE DC power systems consist of MHE rectifiers, VIDI+ controllers, Connections for mains and battery and load distribution. System is configurable to match with requirements of the application.

19” 7U Rack delivers maximum 6 kW output power at 48, 60, 110, 125 and 220 VDC and 4.5 kW at 24 VDC output. 19” 7U Racks include slots for maximum 3 rectifier modules, battery breakers and shunt for one string and bulk DC load output. Wall mounting, IP21 cover kit, temperature sensor, battery block voltage monitoring and BLVD are options. Master-slave set-up can be used to increase power higher than 6kW. The base system supports up to three (3) MHE series high-efficiency rectifiers, but may be expanded by using the 7U Slave rack in a master-slave configuration, increasing the power capability to 16 kW.


24V 48V 110V 220V Battery Charger - Electrical Substations


  • Critical infrastructure
  • Power transmission substations
  • Power distribution substations
  • Railway signalling and substations
  • Process industries
  • Telecommunications

Case Study

Modular & Redundant Battery Chargers for Six Electrical Substations In Bangladesh

Features of CAB 716 

  • 48VDC Dual 3.2kW battery charger in a 45U 600mm W x 600mm D cabinet
  • Two 230VAC Mains Input Connections
  • Float Voltage of 56.8VDC configured for NiCd batteries
  • Single DC Distribution with 10 x 10A 2P load breakers with Auxiliary switches
  • Configured for redundancy by two +P95 blocking diodes
  •  Two 100A 2P Battery MCB’s, one for each battery
  • Temperature sensor with temperature compensation
  • A Low Voltage Disconnect set at 40VDC for each charger
  • End customer: Power grid company in Bangladesh
  • SNMP



Model Power Out Max (kW) Input Voltage (VAC) Output Voltage Range (VDC) Output Current Max (A)
OPUS HE 24-4.5 R7U F 4.5kW 100-250 VAC / 3 x 173-433 VAC (TN-S system)* 21-33VDC 187.5A
OPUS HE 48-6.0 R7U F 6kW 100-250 VAC / 3 x 173-433 VAC (TN-S system)* 42-59VDC 125A
OPUS HE 60-6.0 R7U F 6kW 100-250 VAC / 3 x 173-433 VAC (TN-S system)* 51-72VDC 100A
OPUS HE 110-6.0 R7U F 6kW 100-250 VAC / 3 x 173-433 VAC (TN-S system)* 90-150VDC 55.5A
OPUS HE 125-6.0 R7U F 6kW 100-250 VAC / 3 x 173-433 VAC (TN-S system)* 100-160VDC 50A
OPUS HE 220-6.0 R7U F 6kW 100-250 VAC / 3 x 173-433 VAC (TN-S system)* 178-280VDC 27.8A
*Options: 1-phase supply 100-250VAC, 3-phase Delta/IT supply 3 x 173-250VAC


AC-connection TN-S system, 3W + N + PE, (3-phases, neutral and protective earth wires)
Nominal voltage 100-250 VAC / 3 x 173-433 VAC (TN-S system)
Cooling Natural convection
Protection IP 20
Option IP21
Controller user interface Display and local control in front panel
Distribution and Connections Behind front panel
Colour Frame RAL 7012
Dimensions, rack mounting Height 7U (350 mm)
Width 482 mm
Depth 503 mm
Operating temperature -25°C … +60°C
Humidity max 95% relative humidity, non-condensing
Altitude max Max 3km, full power up to 2km above sea level
Derating 1% per 100 m between 2-3km
Safety Rack: EN61439-1, EN61439-2
Rectifiers: EN 62368-1, EN 50124-1 rail
EMC Rack: EN61439-1, EN61439-2
EN61000-6-1 / -2 / -3 / -4 Generic
EN 50121-4 Rail, ETSI EN 300 386 (48/60V)

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