Merlin 4i Electric Fence Energizer With Keypad 4 Joule

The Merlin 4i Energizer with Keypad is a premium electric fence controller designed for high-performance perimeter security in both residential and commercial environments. With its remote keypad operation and 3.7-joule energy output, the Merlin 4i provides powerful protection and unmatched flexibility. It integrates intelligent alarm monitoring, power-saving features, surge protection, and optional connectivity to security systems, making it a robust solution for intrusion detection and fence integrity. Whether installed near the fence or indoors with remote keypad access, the Merlin 4i ensures your security setup remains accessible, responsive, and resilient.

Product Features

Remote Control Keypad

The energizer includes a user-friendly keypad that allows for programming and control of the system. It supports up to four keypads, enabling control from multiple convenient locations.

3.7 Joule Output Power

Delivers 3.7 joules of energy, capable of maintaining strong deterrent voltage levels across a single fence zone. Ideal for medium to large installations.

Intelligent Alarm Monitoring

Continuously monitors for faults, shorts, or tampering on both the high voltage and earth return wires. Triggers alarms when anomalies are detected.

Integrated Gate Monitoring

Includes a dedicated input for gate monitoring with an optional gate chime function to notify users when a gate is opened or closed.

Adjustable Output & Bypass Functions

Fence voltage and alarm outputs can be adjusted or bypassed directly via the keypad, providing flexible and convenient operation.

Built-In Battery Backup

Operates on 230V mains power with a built-in rechargeable 7Ah battery backup for up to 24 hours of standby during power outages.

Surge and Lightning Protection

Engineered to withstand electrical surges and lightning strikes, protecting the energizer and maintaining system uptime.

External Communication Support

Compatible with armed response radios or GSM modules for remote notifications and integration into broader security systems.

Intelligent Power Saving

Automatically adjusts power output based on system activity to optimize energy use and extend battery life.

Product Specifications

• Energy Output: 3.7 Joules (single zone, 500 Ohms load)
• Open Circuit Voltage: 8000V
• Power Supply: 240V AC mains
• Battery Backup: 7Ah battery included
• Standby Time: 24 hours (fully charged battery)
• Power Consumption: 18VA under normal operation
• Operating Temperature: -10°C to 50°C
• Operating Humidity: Less than 80%, non-condensing
• Enclosure Dimensions: 285mm (L) x 212mm (W) x 120mm (D)
• Weight: 3.1kg (without battery), 5.3kg (with battery)
• Ingress Protection: IPx4 (suitable for sheltered outdoor installation)