Mounting methods
•Flush mounting
•Semi-flush mounting
•Semi-flush mounting in a 25° tilt
•Rack mounting
•Wall mounting
•Mounting to a 19" equipment frame
•Mounting with an RTXP 18 test switch to a 19" rack
Panel cut-out for flush mounting
•Height: 161.5 ±1 mm
•Width: 165.5 ±1 mm
Relay case and plug-in unit
The relay cases are assigned to a certain type of plug-in unit.
For safety reasons, the relay cases for current measuring relays
are provided with automatically operating contacts for short
circuiting the CT secondary circuits when a relay unit is
withdrawn from its case. The relay case is further provided with
a mechanical coding system preventing the current measuring
relay units from being inserted into relay cases intended for
voltage measuring relay units.
Selection and ordering data
The relay type and serial number label identifies the protection
relay. The label is placed above the local HMI on the upper part
of the plug-in-unit. An order code label is placed on the side of
the plug-in unit as well as inside the case. The order code
consists of a string of letters and digits generated from the
relay's hardware and software modules.
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