INSTALLATION & OPERATING DATA
A T E X
M 2 / M 1
GROUP I
INTRINSICALLY
SAFE
5 ISOLATING RELAYS
5.1
Technical Details
Isolating relays may be combined with the Power Supply. The operating coils
of the relays are Intrinsically Safe and the contacts are clearance compatible
for switching non-intrinsically safe apparatus or devices in separate Exd
enclosures (eg. P130 pilot circuits).
Power Supply
Isolating
Relay
Exd
Equipment (GEB)
Exi
P130
A standard power supply chassis is fitted and wired with four
independent relays with field connection facilities for coils
and contacts.
The coils can be rated for either 7.5V dc or 12V dc operation.
Nominal O/P Voltage
Max O/P Current
Relay Contact Rating
Coil Resistance
T X 6 6 2 5
7.5V dc
1.5A
10A 230V ac
324 Ohms
T X 6 6 2 6
12V dc
0.5A
10A 230V ac
580 Ohms
T X 6 6 3 5
7.5V dc
1.5A
10A 230V ac
324 Ohms
T X 6 6 3 6
12V dc
0.5A
10A 230V ac
580 Ohms
ALL DIMENSIONS IN MM
+V 0V
MainsInput
110Vacor230Vac
L
E
N
+V RL2 +V RL3 +V RL4 +V
RL1
RL2
RL3
RL4
RL1
RL2
RL3
RL4
Com NO NC Com NO NC Com NO NC Com NONC
RL1
Contactsshownwith relays de-energised
+V 0V
ExiOutput
MainsInput
110Vacor 230Vac
L
E
N
+V RL2 +V RL3 +V RL4 +V
RL1
RL2
RL3
RL4
RL1
RL2
RL3
RL4
Com NO NC Com NO NC Com NO NC Com NO NC
RL1
Link terminal pairs to energise relays
Contactsshownwith relays de-energised
+V 0V
RL1
+V
+V
+V
+V
R
L
4
RL3
RL2
Exi Chamber
ExdChamber
310.0
50.0
210.0 Centres
3
2
0
.0
3
0
4
.0
C
e
n
tr
e
s
8
.0
8 - 9.0
Fixing Holes.
Earth Stud
5 - M25 Exd
Gland Entries.
Exi Chamber
Exd Chamber
38.0
3
0
4
.0
C
e
n
tr
e
s
122.0
2 - M20
Gland
Entries.
210
226
8
7
5
2
6
1
2
7
4 - 6 Fixing holes
94
5.2
Dimensions
Connections
5.2.1 TX6635.19 INTRINSICALLY SAFE POWER SUPPLY CHASSIS with RELAYS in Exd HOUSING
TX6636.19
5.2.2 TX6625.19
INTRINSICALLY SAFE POWER SUPPLY in Exd HOUSING, with 4 ISOLATING RELAYS
TX6626.19
ALL DIMENSIONS IN MM
T
T
X
X
9
9
1
1
3
3
0
0
s
s
e
e
r
r
i
i
e
e
s
s
ISSUE D 06/14
5/12
