Schneider ZCD75

In general the AC voltage assumes a 50-60 Hz sinusoidal waveform and is the RMS (root mean squared) value.

The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.

Ingress Protection rating (or just IP rating), is an international standard (IEC 60529) used to rate the degree of protection or sealing effectiveness in electrical enclosures against intrusion of objects, water, dust or accidental contact. It corresponds to the European standard EN 60529.

Current rating is the maximum current that a fuse will carry for an indefinite period without too much deterioration of the fuse element.

This function will evaluate a given expression (or a value) against a list of values and will return a result corresponding to the first matching value. In case there is no matching value, an optional default value will be returned.

The distance between the operating position and release or reset position of a limit switch actuator.

The value to which the actuating force must be reduced in order to permit the switch to return to its normal position after operation.

IP (or "Ingress Protection") ratings are defined in international standard EN 6529 (British BS EN 6529:1992, European IEC 659:1989). They are?used to define levels of sealing effectiveness of electrical enclosures against intrusion from foreign bodies?(tools, dirt etc) and moisture.