Merlin 4i Energizer with Keypad

The Merlin 4i includes a keypad for controlling and programming the energizer. The energizer can be installed near the fence and the keypad can be located where it is most convenient for the user. This allows the user to control the energizer remotely, with up to four keypads.

Merlin Single zone keypad Installer Manual
CE Certificate Merlin 4
Installer manual Merlin 4i
Installer Manual keypad Merlin 4
Test report Wizord 2, 4 and Merlin 4
User Manual 4i


  • 3.7 Joule output energy (single zone)
  • Robust and flexible design for home and commercial security
  • Built-in alarm monitors tampering or faults on the high voltage and earth fence wires
  • Connectable to armed response radio or GSM module
  • Lightning and power surge protection
  • Intelligent power saving to extend battery life
  • Powered by 230V mains and includes built-in battery for back-up power
  • Built-in gate alarm input to monitor if the gate is open or closed
  • Gate chime available to alert that the gate has been opened or closed
  • The fence voltage outputs can be adjusted using the keypad
  • The siren and gate outputs can be bypassed using the keypad


Weight 6.11 kg
Enclosure size

285(L) x 212(W) x 120(D)mm


3.1kg excluding battery (7AH)
5.3kg including battery (7AH)

IP rating


Operating temperature

-10°C to 50°C

Operating humidity

< 80% non-condensing

Electrical supply voltage


Typical power consumption

18VA (normal operating conditions)

Standby Time

24hrs (fully charged battery)

Energy output

3.7 Joule per zone (500 Ohms load)

Open circuit voltage


Stock CodeDescription
E-MER4IMerlin 4i Energizer with Keypad