The Rayleigh Instruments RI-122-100-P is a MID approved and certified, 

three-phase network kilowatt hour active energy meter. 

It is housed in a 122mm wide (7 module), DIN rail mounting case. It can be directly connected up to 

100 amps and has pulse output (1000 impulses / kWh) as standard.

The use of MID-certified electricity meters has been made mandatory on 'private' electrical networks 

if there is active energy billing based on consumption readings by index differences. 

Typical examples of use include: camping sites, holiday rentals, student accommodation, office buildings,

shopping centres, marinas, exhibition halls and recharging systems for electric vehicles.

What is the MID? The MID (Measuring Instruments Directive - 2004/22/CE) is a 2004 European Directive 

applicable to measuring devices and systems in the context of commercial transactions. 

The aim of the directive is improve protection of consumers and safeguard their interests. 

These measuring instruments may be active electrical energy meters (Appendix MI003 of the Directive), 

water meters, gas meters, thermal energy meters, weighing instruments, etc.

• Three phase network active energy meter
• Conforms & certified to MID B and D approval
• 100A direct connected
• Counts up regardless of energy direction
• 122mm wide / 7 module
• LCD display 6 + 1 = 999999.9
• Measured voltage 230 / 415V, 50 / 60Hz
• Integrated communication protocol is pulse output 1000 impulses / kWh
• Rayleigh Instruments type RI-122-100-P