1. Power switches with an electromagnetic reset function which meet the
need for energy savings in equipment
and for safety.
Applications for these switches include
promoting energy savings in equipment
(by reducing power consumption when
OA equipment is in standby mode, for
example), preventing fires caused by
overheating of a heater inside equipment,
preventing electrical leaks, and automatically turning off the power if the unit tips
over or is shaken. These s witches f eature
a built-in electromagnetic reset function
that shuts off the main power supply in
response to a signal that is received from
an external sensor.
2. A dramatic upgrade in operation
feelings
These switches provide the same
comfortable operation feelings our
conventional J8 switches.
• Comparison of feel when switch is
turned on
Conventional type
Upgraded type
Force
Stroke
3. CT terminals adopted for coil terminals
These switches can be used with AMP's
CT connectors, which are widely used for
wiring connections in OA equipment,
TRIP FUNCTION
UPGRADED TYPE
making it possible to achieve greater efficiency in wiring work.
Receptacle for AMP's CT connector
receptacle socket
4. Prolonged electrical service life.
Coil operation provides an electrical life
of at least 50,000 switching operations.
5. Assures excellent ability to withstand inrush current when used to
turn a power supply on/off.
The switch uses our own proprietary
mechanism that provides an excellent
ability to withstand inrush current is
employed.
Inrush current rating (IEC65) : 160A (normally 16A at 125V AC), 10,000 times
6. Appro ved under major international
safety standards.
UL, cUL, TÜV and SEMKO approved.
OPERATING PRINCIPLE
• Manual operation is a repetition of (A) and (B) .
This operation is independent of the electromagnetic reset function.
• The reset mechanism operates only when an electromagnetic reset has occurred. (C)
ContactONOFF
(A)(B)
Manual operation
Iron core
Manual opening/closing
Return spring
Permanent
magnet
Electromagnetic reset
Coil terminal
Electromagnetic reset mechanism
Coil
Manual operation
(C)
Flips actuator
5
Page 2
AJ8R
03/2005
ORDERING INFORMATION
Ex. AJ8R1001ZBC
Type of
switch
AJ8R: J8 switch
with trip
function
Remarks: 1. They come with a stamp indicating international standards without your request.
2. The color of IO indication on the actuator is white.
Operating type
1:
Single pole (ON-OFF)
2:
Double pole (ON-OFF)
5:
Single pole (ON-ON)
Terminal shape
0: .250 Quick-
connect terminal
Actuator
indication
0:
O
1:
I
O
2:
I
Coil voltage
1:
DC 5V
3:
DC 12V
4:
DC 24V
PRODUCT TYPES
Remarks: Standard actuator color is dark gray and black.
To order switches with a black actuator, replace the letter "Z"
with "B" in the product numbers shown below when ordering.
1. Without indication on actuators (Actuator color: Dark gray)
PoleOperation typeCoil voltageFlange color: Dark grayFlange color: Black
(Ex.)
AJ8R1001ZC (Actuator color: Dark gray Flange color: Dark gray)
→
AJ8R1001BC (Actuator color: Black Flange color: Dark gray)
Actuator color
Z:B:Dark gray
Black
Flang color
Nil:B:Dark gray
Black
Insulation
guard
C: Upgraded
type
6
Page 3
AJ8R
03/2005
SPECIFICATIONS
1. Contact rating
Voltage
125V AC16A—160A (8.3ms)
125V AC10A4A—
Remark: The motor load is in accordance with EN61058-1. Inrush current can be switched up to the value of 6 times the indicated rating.
Resistive load
(pf = 1)
Motor load
(EN61058-1)
(pf = 0.6)
Inrush load
2. Coil rating
Nominal Voltage
*(Max. 10 sec)
5V DC
12V DC
24V DC
Remark: If the rated voltage is applied to the coil for more than ten seconds or the maximum voltage is applied for more than one second, coil perfor-
mance will deteriorate.
Drop-out voltage
(at 20°C 68° F)
Max.4.5V
Min.0.5V
Max.10.8V
Min.1.2V
Max.21.6V
Min.2.4V
Nominal operating current
[±10%] (at 20°C 68° F)
725mA6.9
300mA40
150mA160
Coil resistance
[±10%] (at 20°C 68° F)
Ω
Ω
Ω
Maximum voltage
(Max. 1 sec)
5.5V
13.2V
26.4V
3. Characteristics
4
Manual operation
Electrical life
Coil operation
Mechanical life
Initial contact resistance
(By voltage drop at 1A, 2 to 4V DC)
Initial insulation resistanceMin. 100mΩ (at 500V DC measured by insulation resistive meter)
Initial breakdown voltage
Ambient temperature
Ambient humidityMax. 85% R.H.
Vibration resistance10 to 55 Hz at single amplitude of 0.75mm
Shock resistance
Tensile terminal strength
Actuator strength39.2N{4kgf} for 1min. operating direction
Contact release timeMax. 100ms (at rated voltage)
Initial operating force
* Reference value
Flame retardancyUL94V-0
Tracking resistanceMin. 175
Unit weight
Remark: Test conditions are in accordance with EN61058-1,UL1054 and JIS C 6571
Between contacts2,000 Vrms
Between coil and contact4,000 Vrms
Functional
Destructive
Min.10
(at 7 cpm.,at rated load)
3
Min.10
(at 7 cpm.,at rated load)
Min.5×10
Min.5×10
Max. 100m
0°C to +60°C
32° F to +140° F
(Not freezing below 0°C 32° F)
Min.294m/s2{30G}
(Contact opening Max. 1ms)
Min.980m/s2{100G}
.250 Quick-connect terminal Min. 98N{10kgf}/min.
(Pull & push direction)
4.9N or less (Max. 500gf or less)
Setting force after reset has been released: Max. 6.86N or less (Max. 700gf or less)
Single pole, single throw: Approx. 17g .60oz
Single pole, double throw: Approx. 19g .67oz
Double pole, single throw: Approx. 20g .71oz
4
(at 7 cpm. 5A 125V AC resistive load)
4
(at 20 cpm.)
Ω
7
Page 4
AJ8R
X
Y
R Max. 01
03/2005
DIMENSIONS
Double pole (ON-OFF)
Wiring diagram(Bottom view)
Single pole (ON-OFF)
56
1
ON (set): 1-2
2
32
1.260
±4°
16°
2
.079
φ
1.75
.069
φ
6.35
.250
15
.591
±0.3
29.8
±.012
1.173
Suitable connector: CT connector
13
4.4
.173
56
24
10.6
.417
8.6
.339
16
.630
13.5
.531
25
.984
+0
−0.2
22
+0
−.008
.866
19.7
.776
0.8
(11.3)
(.445)
18.3
.720
±0.25
21.7
±.010
.854
Opening radius
Edge
The opening radius from when
the panel was processed should
be on the front side of the panel
.031
Single pole (ON-ON)
56
1
Reset:
Set:
24
1-4 closed
1-2 closed
Double pole (ON-OFF)
4
56
13
2
ON (set): 1-2 closed
3-4 closed
Diagram of recommended locations for
panel mounting holes
Panel thicknessXY
1 to less than 1.8
.039 to .071
1.8 to 2.3
.071 to .091
Remark: Contact us if you are considering
using a panel of other than the recommended size and shape.
30.4
1.197
31.1
1.224
+0
–0.1
+0
–0.1
+0
–.004
+0
–.004
22.0
.866
22.0
.866
+0.1
–0
+.004
–0
+0.1
–0
+.004
–0
Remarks: 1. The external dimensions and mounting dimensions for the single pole, single throw
type and the single pole, double throw type are the same as those for the doub le pole,
single throw type indicated above.
2. The figures show the double pole, single throw (ON-OFF) type as an example.
The contact terminals are 1, 2, 3, and 4.
In the case of the single pole, single throw (ON-OFF) type, the contact terminals are 1
and 2.
In the case of the single pole, double throw (ON-ON) type, the contact terminals are
1, 2, and 4.
There are no other terminals.
Refer to the internal wiring diagram.
3. The coil is a polarized coil; coil terminal 5 is positive and coil terminal 6 is negative.
8
Page 5
NOTES
03/2005
1. Operating voltage application time
If the rated voltage is applied to the coil
for more than 10 seconds or the maximum voltage is applied for more than 1
second, coil performance may deteriorate.
2. The shape of the mounting panel
should be as recommended in the
dimensions diagram.
Contact us if you are considering using a
panel of other than the recommended
size and shape.
3. The mounting panel should be made
of SPCC. If a different material is used,
its adhesion to the switch unit may be
not be as strong. Check this on site if
necessary.
4. Note that the actuator could pop out
of the switch housing if 19.6N (2kgf) or
more of force is applied to the side of
the actuator.
5.
(1) When connecting the tab terminals,
use a .250 receptacle and insert the terminals straight in.
If you insert them at an angle, the terminals could catch on the opening and will
require greater insertion force.
(2) The coil terminals have specific polarities. Make sure you connect them correctly.
(3) Use a receptacle that is compliant
with JIS C 2809.
In addition, there is some deviation
regarding the insertion force depending
on the model used from different manufacturers, so the insertion force should be
checked under realistic conditions.
(4) Use AMP's CT connector for the coil
terminals.
6. Because special receptacle terminals are used for the contact terminals
and the common terminals, do not
attempt to solder them. Doing so
could melt plastic components and
otherwise harm the performance of
the switch
7. The terminals should be connected
in such a way that they are not under
constant stress from the connecting
wires.
8. Take care not to drop the product as
it may impair performance.
9. 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.
AJ8R
10. This product is not hermetically
sealed, so its performance could deteriorate under certain ambient conditions. 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. In addition, because these
switches contain permanent magnets,
avoid using and storing these
switches in a location where metallic
dust, etc., is present.
11. When these switches are used with
weak currents of 500mA or less, a
layer of material on the surface of the
contacts may cause contact instability . Chec k and ev aluate this possibility
before using these switches under
such conditions.
12. When using an ON-OFF type
switch with no (|O) indication on the
actuator, the "OFF" position should be
indicated on the set in which the
switch is installed.
13. To assure reliability, check the
switch under actual loading conditions. Avoid any situation that may
adversely affect switching performance.
COIL TERMINAL CONNECTOR
Because CT terminals are used for the
coil terminals, AMP's CT connector can
be used.
Remark: We do not sell this type of connector.
Questions concerning this connector
should be directed to the manufacturer.
AMP's CT connector
receptacle socket
Pressure welding type:
173977-2: for AWG26, 28
2-179694-2: for AWG24
Crimping type:
179228-2