Brochure/Catalogue

for EMR for SSR
Power rating (input) The nominal value of the power that is converted when the rated control voltage
is applied in individual installation.
For AC, specications are valid for 50 Hz unless otherwise indicated.
Measured at room temperature (approx. 23 °C) and an only briey energised coil
(coil temperature below thermal stability).
The power rating depends on environmental parameters such as the ambient
temperature, the mounting position and the manufacturing tolerances (coil
resistance). Therefore, the values in the application may differ from the data
sheet specications.
x x
Protection degree –
(IEC 60529), IP
The degree of protection afforded by an enclosure is shown using the IP Code
(IP = International Protection). This information is equally relevant for industrial
relays and accessories.
Protection levels for touch contact and foreign bodies (the rst digit): the rst
digit indicates the degree of protection inside the housing against ingress of solid
foreign objects and against any human access to hazardous parts.
0: no protection
1: protection for large body parts with a diameter > 50 mm
2: nger protection (diameter 12 mm)
3: tools and wires (diameter > 2.5 mm)
4: tools and wires (diameter > 1 mm)
5: full protection against touch contact
6: full protection against touch contact
Degree of water protection (the second digit)
Degrees of protection: water protection (2nd digit)
The second digit indicates the degree of protection provided against the ingress
of water into the housing:
0: no protection
1: protection against vertically falling drops of water
2: protection against water droplets falling diagonally (up to 15°)
3: protection against water spray that falls at an angle up to 60° from vertical
4: protection against splashed water from all sides
5: protection against water jets
6: protection against powerful jets of water (ooding)
7: protection against sporadic submersion
8: protection against constant submersion
x x
EMR = Electromechanical relay
SSR = Solid-state relay
Glossary: Relay modules and Solid-state relays
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Technical appendix/Glossary
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