Brand I
 
IDEC Corporation : Electronic & Electromagnetic Relays
Isopad Ltd : Trace Heating Systems
ITE : Circuit Breakers
ITT Barton : Density, Pressure and Flow Instruments
ITT Grinnel Valves : Valves
IFM Electronic : Pressure Vacuum Flow Transducers, Sensors - Inductive, Capacitive, Magnetic field, Photoelectric & Ultrasonic
IMO : Control Gear, Relays, Timers & Sensors