Sargent EC155 + EC50 Power Control System Kit (K155A)

Price:  £319.93   (£266.61 Exc. VAT)

Product code:  P02921
Brand:  Sargent



10 in stock

The Sargent EC155/EC50 kit is an all-in-one 'plug-and-play' electrical system for campervans, motorhomes, caravans and other leisure vehicles. These complete kits are very popular amongst professional and DIY converters alike for their integrated design and ease of installation. All the major components you need for your installation are supplied, including fully built wiring harnesses for the 230V AC and 12V DC parts of the system.

EC155 Power Supply Unit

The EC155 safely manages all your 12V and 230V distribution in one compact enclosure and contains a 150W, fixed voltage (13.8V) charger for re-charging wet lead-acid leisure batteries* from a mains hook-up and a split charging function for re-charging wet lead-acid leisure batteries from the vehicle alternator (Euro 4 & earlier vehicles ). 

The 230V distribution system comprises 3 MCBs & an RCD to supply power to 3-pin sockets, heater, water heater etc. as well as the integrated 12V battery charger. The 150W charger can supply up to 12A and is capable of both charging your leisure battery and powering your 12V systems at the same time (the 12A output is shared, e.g. 3A used for powering 12V circuits leaves 9A for battery charging). The 12V distribution system comprises 12 circuits protected with automotive blade (ATO) fuses for powering internal lights, fridge, water pump, hob ignition, ventilation fan, 12V sockets, heater fan etc. as well as protecting the connection to the 12V charger.

EC50 Control Panel

The EC50 has a number of buttons with indicator lamps to control functions such as Main 12V power ON/OFF, Pump(s) ON/OFF, Aux power ON/OFF, Battery selection (starter/leisure) and features a 5-level LED indicator to show battery voltage level. The coloured surround used on the EC50 Control Panel is a grey 2-way outer frame from the CBE modular switch & socket system.  It can be swapped for any colour 2-way outer frame so you can match it with the rest of your CBE system if required.

Features - EC155+EC50

  • 150W (approx. 12A) Charger /  Power Supply Unit
  • 12 x DC circuits with automotive fuses
  • 1 x battery connection fuse
  • 3 x 230V AC Miniature Circuit Breakers (10A, 10A, 6A)
  • 1 x 230V RCD
  • Integrated split charge function (Euro 4 vehicles and older)
  • Full 12V DC and 230V AC wiring harnesses
  • Suits wet lead-acid batteries*
  • Leisure battery range 75-120Ah
  • Charger ON/OFF power switch
  • Main 12V power switch
  • Water pump power switch
  • Auxiliary power switch
  • Vehicle/leisure battery selector switch
  • 5-level LED battery voltage indicator
  • Low battery level alarm
  • Over-voltage protection
  • Under-voltage protection
  • Over-temperature protection (auto shutdown & restart)
  • Can be used with optional DC-DC charger

* May be able to be used with Gel/AGM lead-acid batteries, depending on their composition


This kit is intended for installation in vehicles that have a standard alternator (Euro 4 spec engine or earlier) and the split charging feature will not work effectively in vehicles with a Euro 5 or 6 spec engine.  If you wish to fit this kit in a vehicle with a Euro 5 or 6 spec engine then you will need to disable the split charging feature in the kit and fit a separate battery-to-battery (DC-DC) charger to charge your leisure battery from your alternator. Details of how to do this can be found in the installation instructions, downloadable from the Manuals & Guides tab above. Please contact Sargent directly if you require detailed technical support in relation to this.

Sargent now produces its own DX320 20A DC-DC charger for this purpose which can be found here (other DC-DC chargers can be used).

  • AC input voltage: 230V  +/- 10%
  • AC input current: 0-12A
  • AC output protection: 3 x MCB (10A, 10A, 6A) + RCD
  • DC input: 2 x 20A battery inputs via a 9-way connector
  • DC output: 20A total via 4x 16A switched channels
  • DC output protection: 12 x fused circuits (ATO blade)
  • Integrated charger: 13.8V fixed voltage, 12A max.
  • Signal input: 1 x engine running via PSU connector
  • Data IN/OUT connection: 8-way RJ45 connector
  • 230V AC harness length: 1.8m mains inlet to PSU, 1.5m PSU to appliances 
  • 12V DC harness length: 2m PSU to connected equipment
  • Ingress protection rating: IP31
  • Operating temperature: 0-35°C
  • Overall dims EC155: 260 (H) x 263 (W) x 110 (D) mm
  • EC155 fixing centres: 262 x 224 mm
  • Overall dims EC50: 80 (H) x 140 (W) x 30 (D) mm
  • EC50 cut-out dims: 60 (H) x 110 (W) mm

Part Number:  K155A

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Founded in 1991, Sargent specialises in designing and manufacturing complete electrical systems for campervans, motorhomes, caravans and other leisure vehicles. Sargent is best known for its all-in-one kits which are extremely popular amongst professional and DIY converters alike for their integrated, plug-and-play designs.

Business Hours: Mon - Fri | 9am - 5pm
CALL Sales & Support: 01844 885100
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