AJ7 (J7) Switches
–7–
AECTB3E 201701-T
CAUTIONS FOR USE
REFERENCE
INTRODUCTION TO 4P CONNECTORS FOR THE AJ7 (J7) SWITCH
(produced by Nippon Tanshi Co., Ltd)
■ Switch mounting
Mount the switch with the hole cutting
dimensions shown in the dimensions.
Please contact us if you are considering
using a panel of other than the
recommended size and shape.
■ Regarding fastening lead wires to
terminals
1) When connecting the tab terminals,
use a .187 Quick-connect and insert the
terminals straight in. If they are skewed,
the terminals will require excessive
insertion force.
In addition, there is some variation in the
insertion force required for different
receptacles from different manufacturers,
so confirm how much force is needed
under actual conditions.
Do not solder wires onto tab terminals.
2) With manual soldering: Complete the
soldering connection work within 3
seconds with the tip of the soldering iron
at a temperature of 420°C or lower, and
take care not to apply any force to the
terminal area.
Avoid touching the switch with soldering
iron.
Refer to the diagram above, “soldering
position,” for details on the position where
a wire should be soldered to a terminal.
When soldering PC board terminals,
keep soldering time to within 5 seconds
at 270°C soldering bath or within 3
seconds at 350°C soldering bath.
3) The terminals should be connected in
such a way that they are not under
constant stress from the connecting
wires.
4) Terminal material is copper alloy which
may discolor due to finger’s oil or after a
long time. But that discoloration does not
effect actual performance.
■ Resistance to chemicals
To clean the switch unit, use a neutral
detergent diluted with water.
Do not use acidic or alkaline solvents as
they may damage the switch.
Furthermore, be careful not to get any of
the detergent solution inside of the switch
while cleaning it.
■ Environment
Avoid using and storing these switches in
a location where they will be exposed to
corrosive gases, silicon, or high dust
levels, all of which can have an adverse
effect on the contacts.
■ Take care not to drop the product as
it may impair perfomance.
Contact terminal and common terminal
Soldering position
When wrapping or soldering a wire
around a terminal, do so in the shaded
area indicated in the diagram at left.
■ Outline of UL1054 test
Overload test AJ7 (J7): 15A 277V AC
(Power factor 0.75 to 0.8)
50 operation
Endurance test AJ7 (J7): 10A 277V AC
(Power factor 0.75 to 0.8)
6×10
3
operation
After testing, temperature rise of
terminals should be less than 30°C and
no abnormality should be observed in
characteristics.
■ Outline of EN61058-1 test
After switching 5 × 10
3
times on the below
load condition at both 85 °C and
25±10°C, temperature rise of terminals
should be less than 55°C and no
abnormality should be observed in
characteristics.
24A
50 to 100ms
J7: 10A
AC: 277V
(Power factor: 0.6)
1 sec.
3 sec.
Note: This AJ7 switch connector is not available from
Panasonic.
Suitable switches: AJ7 (J7) switch, .187 Quick-connect terminal
(Note: Terminal guard long type switches are not suitable for this connector.)
• Housing
Product number: 4120-4204
• Receptacle
Product number: 171901-M2
• If you have any questions, please directly contact:
Nippon Tanshi Co., Ltd.
