Glossary of Terms
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- IC (Integrated Circuit):An electrical circuit composed of many components etched on a semiconductor chip.
- IEC:International Electrotechnical Commission
- IECQ:IEC’s Quality Assessment system for Electronic Components, created in 1983 to facilitate national and international trade in certified electronic components. A worldwide certification system which provides a method whereby electronic components made and handled by approved manufacturers and(...)
- Immersion Proof:A switch or product able to withstand submersion in water to a depth of 3 feet or more for 30 minutes without leaking.
- Inductive Load:A load in which the initial current on making (closing) of the contacts is lower than steady state and rises slowly. On breaking (opening) of the contacts, the current is greater than steady state. The stored energy of the inductor provokes a long and severe arcing time. Current lags voltage(...)
- Inrush:The initial transitory high-level of current at contact closing (making). A characteristic of capacitive and some resistive loads. The inrush currents can be large and long enough to cause severe degradation of the contacts. See Resistive Load. Capacitive Load. Power Factor.
- Inrush Current:Current that drawn by electrical motor during start-up transitioning or by a lamp filament during heating to its operating resistance.
- Insert Mold:In switches used to refer to terminations that are placed in the mold so that plastic is molded around the terminations. The chief benefit is an inherent seal against the intrusion of flux into the body of the device. Therefore, no epoxy terminal seal is required.
- Insulation Resistance:The electrical resistance between two normally insulated parts; measured at a specific high potential (1000 Vrms). Typical value for switches is 1 G.
- IP (Ingress Protection):Numbers used to rate the environmental seal of an enclosure.
- IP64:IP rating indicating that the item is resistant to dust and protected against splashing water.
- IP65:IP rating indicating that the item is resistant to dust and protected against water projected by a 6.3 mm nozzle against enclosure for 3 minutes at 100 liters per minute of 100 kN/m² at distance of 3 meter.
- IP67:IP rating indicating means the item is resistant to dust can be placed into a body of water up to a meter deep for 30 minutes.
- IP68:IP rating indicating that the product is resistant to dust and sealed against continuous immersion under 1 meter of water for a minimum of 30 minutes, not operated.
- IP69K:IP rating indicating the product is protected against for high-pressure, high-temperature wash-down applications. Such enclosures must not only be resistant to dust, but it must also be able to withstand high-pressure and steam cleaning.