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Phocos MPS45 | Modular Power Switch for 12/24/48V

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Phocos MPS45


Phocos MPS45
Phocos Modular Power Switch, 12/24/48V, 45A

Modular Power Switch

Charge/Load or Dump controller for 12/24/48V photovoltaic systems

Phocos MPM component (Modular Power Management)

The MPS series controller can be used as typical PWM charge controller (overcharge protection) or as load controller (deep discharge protection) or as an dump-load controller. That are 3 different modes available, but not simultaneously. The function charge-/load/dump-controller can be set by the dip switch, within the device. Compatible within the MPM Phocos Modular Power Management (with MCU/MPPT/MCS). Available as 45A and 80A model. 

Example of PV solar off-grid diagram with Phocos MPSExample of PV off-grid photovoltaic system diagram based on Phocos MPS (more diagrams here...)

MPS is Phocos innovative new multi-functional power switching module for stand-alone solar systems. It can be configured to operate as a charge controller, load controller or diversion controller by simple toggling of DIP switch settings. 
A single MPS unit can control up to 45A or 80A of current at 12/24/48V and the switching can be set for pulse-width modulation or two-point series switching. When using the MPS 45/80 as loads-controller, it can be overloaded 100% for 120 seconds and up to 200% for 12 seconds. When configured as a diversion controller, the MPS can also control a diversion load for wind and micro-hydro turbine systems.

MPS offers integrated, adjustable low voltage disconnect as a load controller and sophisticated overcharge protection as a solar charge controller. The new flexible power electronics allow for positive or negative grounding.

The power switch is a fundamental unit within Phocos innovative
Modular Power Management family. Multiple MPS units can be operated together with the help of Phocos MCU, modular control unit. This allows multiple strings of solar inputs to be used to charge the same battery bank at an aggregate charge current of up to 320A. Used as load controllers, multiple MPS units can control up to 200A of total load current.

MPS is a cost-effective, simple, yet versatile power switch that is a valuable solution for stand-alone solar, wind, micro-hydro or hybrid power supplies.


  • 12/24/48 V (automatic oder manual) 
  • Low voltage disconnect (adjustable) 
  • Overcharge protection 
  • Pulse-width modulation 
  • Two-point series switching 
  • Diversion control 
  • Excess energy management 
  • Flexible grounding 
  • DIN rail mounting 




 Phocos MPS - Datasheet
 Phocos MPS - User Manual
 Phocos MPS - CE Certificate
 Phocos MPM System - Overview DIP switch settings in Modular Components MPS, MPPT i MCU

Technical Data

Product Phocos MPS 45A | 80A
Type Multi-Functional Power Switch
System Photovoltaic Systems
Function Overcharge Protection
Nominal Voltage 12/24/48V automatic detection
Max. load current 45A | 80A
Self consumption < 10mA
Ambient temperature −40 to +50°C
Weight 1007 g | 1100 g
Dimensions (WxHxD) 108x150x112 mm
Protection class IP22

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