23. Mounting methods
By means of appropriate mounting accessories the standard
relay case for the 615 series relay can be flush mounted, semi-
flush mounted or wall mounted. The flush mounted and wall
mounted relay cases can also be mounted in a tilted position
(25°) using special accessories.
Further, the relays can be mounted in any standard 19”
instrument cabinet by means of 19” mounting panels available
with cut-outs for one or two relays.Alternatively, the relay can
be mounted in 19” instrument cabinets by means of 4U
Combiflex equipment frames.
For the routine testing purposes, the relay cases can be
equipped with test switches, type RTXP 18, which can be
mounted side by side with the relay cases.
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 a RTXP 18 test switch to a 19" rack
Panel cut-out for flush mounting:
• Height: 161.5 ±1 mm
• Width: 165.5 ±1 mm
IECA07 0902 V4 EN
Figure 19. Semi-flush with a 25º tilt
24. Relay case and 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withdrawn from its case.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 current measuring
relay units from being inserted into a relay case for a voltage
measuring relay unit and vice versa, that is, the relay cases are
assigned to a certain type of plug-in unit.
25. Selection and ordering data
Use the ABB Library to access the selection and ordering
information and to generate the order number.
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