Wattch Metering Kit

Unlimited scalable EV charging. Prevent overloads. Avoid costly electrical upgrades.

The Wattch CT Monitoring Kit is a fully certified EVEMS (Electric Vehicle Energy Management System) that enables dynamic load balancing across your building. It continuously monitors unmanaged loads in real time and automatically adjusts EV charging power to prevent panel overloads. The result: more chargers, no new electrical service, and future-proof scalability.

Designed for commercial buildings, MURBs, fleet depots, and retrofit projects, Wattch is the simplest way to unlock intelligent, cost-effective load management across all three phases.

Applications: 

• Commercial Buildings
• Multi-Unit Residential Buildings (MURBs)
• Fleet Depots
• Retrofit Projects

Technical Specifications:

Electrical

• Input Voltage: 180–500V L-L
• Frequency: 50/60 Hz
• Input Protection: 2A Class CC fuses (L1, L2, L3)
• Power Consumption: Avg 9W, Peak 43W
• CT Input: Any 333 mV CT (not included)

Output

• DC Output Voltage: Up to 24V DC
• DC Output Current: Up to 1A

Performance

• Resolution: 10-sec nominal (configurable to 1 sec)
• Device Support:
  • 250 devices via Ethernet
  • 32 devices via RS-485
• Data Storage: Up to 3 months offline storage

Communication

• Interface: RS-485
• Network: LTE Cat 4 modem, multi-carrier compatible
• Protocols: Modbus/RTU or Modbus/TCP
• Ethernet requires external switch

Environmental

• Operating Temp: –20°C to 70°C (–4°F to 158°F)
• Humidity: 20–90% non-condensing
• Protection: NEMA 4X / IP67 (outdoor-rated)

Mechanical

• Dimensions: 300 × 400 × 187 mm (11.82 × 15.75 × 7.37 in)
• Weight: 5.4 kg (12 lb)
• Enclosure: Ensto WPCP304018G

Certifications

• UL 508A, UL 1077, ANSI C12.20

Spec Sheet: English | French
Installation Guide: English | French
Quick Setup Guide: English | French