Alfatronix are pleased to introduce the PowerTector range, a brand new series of innovative battery guard products.  These programmable low voltage disconnects offer a simple, low cost and unobtrusive method for protecting your battery from damage due to total discharge while ensuring that there is always sufficient power to start the engine and serve essential applications.

Full range now available

There are six units in the range offering power options from 10A to 200A. All units are rated IP65 and come complete with up to 10 pre-programmed configurations to suit all likely battery protection requirements. The PT40 (40A) and PT60 (60A) units offer additional information inputs and outputs including on/off terminal, warning light/buzzer and programming. The PT100 (100A) and PT200 (200A) units offer in addition a manual override switch to re-connect short term power if required.

These low voltage disconnect units are constructed from die cast aluminium and glass reinforced polycarbonate offering a very solid construction. The PT40 battery guards and above have three fixing points and can be fixed even to uneven or awkward chassis positions. Power connections are by way of brass bolts (to minimise voltage drops) with protection between the terminals. The PT10 and PT20 devices use simple 6.3mm faston blade terminals with strain relief and can simply be tie wrapped to the wiring for a fast, neat and reliable protection of your battery system. In particular, these low cost battery guard units are designed to be available at such a price as to be included as a standard component in all professional installations of ancillary equipment on vehicles protecting both the installation and the power system.

Choose your PowerTector

Part Number Power Input Voltage Dimensions Weight
PT10 10A continuous 9Vdc-32Vdc (Automatic Referencing) 155 x 30 x 15mm 45g
PT20 20A continuous 9Vdc-32Vdc (Automatic Referencing) 155 x 30 x 15mm 45g
PT40 40A continuous 9Vdc-32Vdc (Automatic Referencing) 76 x 78 x 33mm 155g
PT60 60A continuous 9Vdc-32Vdc (Automatic Referencing) 76 x 78 x 33mm 155g
PT100 100A continuous 9Vdc-32Vdc (Automatic Referencing) 124 x 97 x 51mm 530g
PT200 200A continuous 9Vdc-32Vdc (Automatic Referencing) 124 x 97 x 51mm 530g

Technical Data

Input voltage range 9-32Vdc (Automatic Referencing)
Output voltage Equal to input voltage when operating (maximum of 100mV drop across terminals)
Transient over current rating (% of continuous value) 110% for 10s
200% for 1s
300% for <0.5ms
On over current shut down there is a retry every 30s
Quiescent current when shutdown (when running) Typ 2mA @13.6V, (PT40/60 Typ 4mA @13.6V) (PT100/200 Typ 6mA @13.6V)
Isolation >400Vrms between input, output and case
Transient voltage protection Meets ISO7637-2 International standard for 24V vehicles
Electrostatic voltage protection Meets ISO10605, ISO14892, >8kV contact, 15kV discharge
Operating temperature -25ºC to +60ºC to meet this specification table
Storage temperature -25ºC to +100ºC
Ingress protection IP65
Casework E coated aluminium, glass filled polycarbonate
Connections PT10/20 Insulated 6.3mm push-on flat blade connectors
PT40/60 M6 ring tongues
PT100/200 M10 ring tongues and switch for additional over ride connection
6.3mm push-in flat blade connectors for earth, program, switch, override and alarm
Programming lead provided
Output indicator Green LED adjacent to programming terminal (for programming and output indication)
Mounting method PT10/20 tie wrap to wiring
PT40/60/100/200 3off pozi screws
Safe area protection:  over current Limited by current sensing circuit

Over heat

Limited by temperature sensing circuit


Protected by filters and rugged component selection

Catastrophic protection

Set by external input fuse (set by application demands) and ground line fuse 1A
Approvals 2004/108/EC The general EMC directive
Regulation 10.04 The automotive directive
93/68/EEC The CE marking directive
Markings CE and E marked

Alfatronix (Ireland)


Phone: +353 (0)404 62399

C26 Wicklow Enterprise Centre
The Murrough
Wicklow Town
Co. Wicklow