1
Overload Adjustment
4
Trip Indicator
CRA40
USER MANUAL
Thermal Overload Relay
CRA40~80
Disconnect all power before installing, modifying or servicing equipment.
Electric shock will result in death or serious injury.
WARNING
Only skilled & qualified personnel should carry out the following operations and
must adhere to all appropriate national, regional and local standards applicable
2
Sealing Cover
98
97
3
Manual Auto Reset
M
Auto
Reset
5
Reset Function
96
95
98
96
6
Crompton Controls Ltd.
Monckton Road, Wakefield, West Yorkshire WF2 7AL
Phone: +44 (0)1924 368251 Fax: +44 (0)1924 367274
E-mail: sales@cromptoncontrols.co.uk, www.cromptoncontrols.co.uk
97
95
Stop Function
96
95
A1
A2
M
Auto
Reset
A1
A2
XXXXX
2
1
L2
L1
1
2
T1 T2
U
L3
L2
L3
A2
A1
L1
L3
L2
5
3
1
6
2
4
T3
T2
T1
L1
3
1
4
2
T2
T1
U
V
95
97
5
6
96
98
T3
W
5
3
4
V
13
14
97
95
6
98
96
T3
W
3
1
A1
A2
4
Dimensional Diagram:
54
6
g (3P)
g (4P)
109
c
a
b
c
35/75
b
a
CC+CRA40~80
CC40
CC50
CC65
111
72.4
119
4.5
9.5
CC80
115.5
76.9
123.5
9.5
15
70
30
21
Wiring Min. Max. :
Wiring Capability:
g
Load Terminals
Solid Wire
Stranded Wire
AWG Wire
Standard Guage
Clamp
Tightening Torque
Tightening Torque(UL)
Auxiliary Terminals
Solid Wire
Stranded Wire
AWG Wire
Standard Guage
Tightening Torque
Screw Plate
Tightening Torque(UL)
2
mm
2
mm
Nm/lb.in
lb.in
2
mm
2
mm
Nm/lb.in
lb.in
Head Type
Slot/Hex.Socket Head
Head Type
Combi-head
(Slot/Philips)
CRA40~80
2 x 4...25
2 x 4...25
2 x 12...2
2 x A4..B9
9 / 79.5
75
CRA40~80
2 x 1...2.5
2 x 0.75...1.5
2 x 18...14
A2 / B2
1.2 / 10.6
7
Ø 6
Ø 6
4
Philips No.2
Independent Mounting:
Terminal screws must be tightened at recommended torque and checked frequently.
CAUTION
All strands of cable shall go into the terminal of each phase.
=
50
=
Control Circuit Test (Trip Test):
75/87
Test
+
98
2
97
96
95
3
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