21
The relay case is basically designed for flush-
mounting. The mounting depth can be reduced
by the use of a raising frame: type SPA-ZX 111
reduces the depth behind the mounting panel
by 40 mm, type SPA-ZX 112 reduces the depth
by 80 mm and type SPA-ZX 113 reduces the
depth by 120 mm.. The relay can also be mounted
in a case for surface mounting, type designation
SPA-ZX 115.
Dimensions
and mounting
Example
1. Quantity and type designation
15 pcs SPAJ 111 C
2. Ordering number
RS 421 011 -AA
3. Rated frequency
f
n
= 50 Hz
4. Auxiliary voltage
U
aux
= 110 V dc
5. Accessories
15 pcs bus connection module SPA-ZC 21 MM
2 pcs fibre-optic cables SPA-ZF MM100
14 pcs fibre-optic cables SPA-ZF MM5
6. Special requirements
-
Order information
The relay case is made of profile aluminium and
finished in beige.
A rubber gasket fitted on the mounting collar
provides an IP54 degree of protection between
relay case and mounting panel, when the relay is
flush mounted.
The hinged cover of the relay case is made of a
clear, UV stabilized polycarbonate, and pro-
vided with a sealable fastening screw. A gasket
along the edge of the cover provides an IP54
degree of protection between the case and the
cover.
All input and output wires are connected to the
screw terminal blocks on the rear panel. Each
terminal is dimensioned for one 6 mm
2
wire or
two 2.5 mm
2
wires. The D-type connector
connects to the serial communication bus.
Fig. 8. Dimensions of the earth-fault relay SPAJ 111 C.
Raising frame
SPA-ZX 111
SPA-ZX 112
SPA-ZX 113
176
136
96
74
114
154
a
b
a
b
Panel cut-out
129 ±1
139 ±1
142
162
136
30
34
250
186
216
