AJ8R
POWER ROCKER SWITCH
AJ8 SWITCHES WITH TRIP
FUNCTION UPGRADED TYPE
FEATURES
1. Power switches with an electromag-
netic 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 automati-
cally turning off the power if the unit tips
over or is shaken. These switches feature
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. Improved feel of switch operation.
These switches provide the same
comfortable operation of our
conventional AJ8 switches.
Comparison of force through operating 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,
making it possible to achieve greater
efficiency in wiring work.
Receptacle socket
for AMP’s CT connector
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.
Inrush current rating (IEC61058-1):
160A (normally 16A at 125V AC), 10,000
times
6. Approved under major international
safety standards.
UL, cUL, TÜV and SEMKO approved.
PRECAUTIONS WHEN
USING CADMIUM-FREE
CONTACT TYPE
Models with cadmium-free contacts have
been introduced in order to reduce
environmentally harmful substances. (“F”
is affixed to the end of the part number.)
We ask customers who are currently
using products with cadmium-containing
contacts (no “F” at the end of the part
number) to please make the switch to
models with cadmium-free contacts.
When switching, operating life may differ
depending on the load. Please be sure to
verify this by conducting an evaluation
using actual equipment.
RoHS Directive compatibility information
http://www.nais-e.com/
Stroke
Force
Upgraded type
Conventional type
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AJ8R
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)
ORDERING INFORMATION
Contact ON OFF
Iron core
Manual operation
Return spring
Permanent
magnet
Coil
Coil terminal
Electromagnetic reset mechanism
(A) (B)
(C)
Manual operation
Flips actuator
Manual opening/closing
Electromagnetic reset
Actuator indication
0: No indication
1: indication
2: indication
AJ8: AJ8 switches
Functions
R: Reset function
Coil voltage
1: 5 V DC 3: 12 V DC 4: 24 V DC
Actuator color
Z: Dark gray B: Black
Flange color
Nil: Dark gray B: Black
C: Upgraded type
F: Cadmium-free product
Number of pole and Operation
1: 1-pole, single throw (ON-OFF)
2: 2-pole, single throw (ON-OFF)
5: 1-pole, double throw (ON-ON)
AJ 8 R C F
Terminal shape
0: .250 Quick-connect terminal
Remarks: 1. They come with a stamp indicating international standards without your request.
2. The color of indication on the actuator is white.
All Rights Reserved © COPYRIGHT Matsushita Electric Works, Ltd.
AJ8R
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.
(Ex.) AJ8R1001ZC (Actuator color: Dark gray Flange color: Dark gray)
AJ8R1001BC (Actuator color: Black Flange color: Dark gray)
1. Without indication on actuators (Actuator color: Dark gray)
2. With indication on actuator
1) With I O indication (Actuator color: Dark gray)
2) With — O indication (Actuator color: Dark gray)
SPECIFICATIONS
1. Contact rating
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.
2. Coil rating
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 performance will deteriorate.
Poles Operation type Coil voltage Part No.
Flange color: Dark gray Flange color: Black
1-pole
Single throw
(ON-OFF)
5V DC AJ8R1001ZCF AJ8R1001ZBCF
12V DC AJ8R1003ZCF AJ8R1003ZBCF
24V DC AJ8R1004ZCF AJ8R1004ZBCF
Double throw
(ON-ON)
5V DC AJ8R5001ZCF AJ8R5001ZBCF
12V DC AJ8R5003ZCF AJ8R5003ZBCF
24V DC AJ8R5004ZCF AJ8R5004ZBCF
2-pole Single throw
(ON-OFF)
5V DC AJ8R2001ZCF AJ8R2001ZBCF
12V DC AJ8R2003ZCF AJ8R2003ZBCF
24V DC AJ8R2004ZCF AJ8R2004ZBCF
Poles Operation type Coil voltage Part No.
Flange color: Dark gray Flange color: Black
1-pole
Single throw
(ON-OFF)
5V DC AJ8R1011ZCF AJ8R1011ZBCF
12V DC AJ8R1013ZCF AJ8R1013ZBCF
24V DC AJ8R1014ZCF AJ8R1014ZBCF
Double throw
(ON-ON)
5V DC AJ8R5011ZCF AJ8R5011ZBCF
12V DC AJ8R5013ZCF AJ8R5013ZBCF
24V DC AJ8R5014ZCF AJ8R5014ZBCF
2-pole Single throw
(ON-OFF)
5V DC AJ8R2011ZCF AJ8R2011ZBCF
12V DC AJ8R2013ZCF AJ8R2013ZBCF
24V DC AJ8R2014ZCF AJ8R2014ZBCF
Poles Operation type Coil voltage Part No.
Flange color: Dark gray Flange color: Black
1-pole
Single throw
(ON-OFF)
5V DC AJ8R1021ZCF AJ8R1021ZBCF
12V DC AJ8R1023ZCF AJ8R1023ZBCF
24V DC AJ8R1024ZCF AJ8R1024ZBCF
Double throw
(ON-ON)
5V DC AJ8R5021ZCF AJ8R5021ZBCF
12V DC AJ8R5023ZCF AJ8R5023ZBCF
24V DC AJ8R5024ZCF AJ8R5024ZBCF
2-pole Single throw
(ON-OFF)
5V DC AJ8R2021ZCF AJ8R2021ZBCF
12V DC AJ8R2023ZCF AJ8R2023ZBCF
24V DC AJ8R2024ZCF AJ8R2024ZBCF
Voltage Resistive load
(pf = 1)
Motor load
(EN61058-1)
(pf = 0.6)
Inrush load
125V AC 16A 160A (8.3ms)
250V AC 10A 4A
Nominal Voltage
*(Max. 10 sec)
Drop-out voltage
(at 20°C)
Nominal operating current
[±10%] (at 20°C)
Coil resistance
[±10%] (at 20°C)
Maximum voltage
(Max. 1 s)
5V DC Max.4.5V
Min.0.5V 725mA 6.95.5V
12V DC Max.10.8V
Min.1.2V 300mA 4013.2V
24V DC Max.21.6V
Min.2.4V 150mA 16026.4V
All Rights Reserved © COPYRIGHT Matsushita Electric Works, Ltd.
AJ8R
3. Characteristics
Remark: Test conditions are in accordance with EN61058-1, UL1054 and JIS C 6571.
DIMENSIONS mm General tolerance: ±0.5
Electrical life Manual operation Min.104 (at 7 cpm.,at rated load)
Coil operation Min.103 (at 7 cpm.,at rated load), Min.5×104 (at 7 cpm. 5A 125V AC)
Mechanical life Min.5×104 (at 20 cpm.)
Initial contact resistance
(By voltage drop at 1A, 2 to 4V DC) Max. 100m
Initial insulation resistance Min. 100M (at 500V DC measured by insulation resistive meter)
Initial breakdown
voltage
Between contacts 2,000 Vrms
Between coil and contact 4,000 Vrms
Ambient temperature 0°C to +60°C (Not freezing below 0°C)
Vibration resistance 10 to 55 Hz at single amplitude of 0.75mm
Shock resistance Functional Min.294m/s2{30G} (Contact opening Max. 1ms)
Destructive Min.980m/s2{100G}
Te r minal strength .250 Quick-connect terminal Min. 98N{10kgf}/min. (Pull & push direction)
Actuator strength 39.2N{4kgf} for 1min. operating direction
Contact release time Max. 100ms (at rated voltage)
Initial operating force
* Reference value
4.9N or less (Max. 500gf or less)
Setting force after reset has been released: Max. 6.86N or less (Max. 700gf or less)
Flame retardancy UL94V-0
Tracking resistance Min. 175
Unit weight 1-pole, single throw: Approx. 17g; 1-pole, double throw: Approx. 19g; 2-pole, single throw: Approx. 20g
Contact material AgSnO2 alloy
2-pole, single throw (ON-OFF)
24
13
56
Suitable connector: CT connector
32
16°±4°
8.6
16
0.8
13.5
10.6
4.4
2
1.75 dia.
15
29.8±0.3
6.35
19.7
25
22+0
0.2
18.3
(11.3)
21.7±0.25
Edge
The opening radius from
when the panel was
processed should be on
the front side of the panel
Opening radius
Remarks: 1. The external dimensions and mounting dimensions for the 1-pole, single throw type and the 1-pole,
double throw type are the same as those for the 2-pole, single throw type indicated above.
2. The figures show the 2-pole, single throw (ON-OFF) type as an example.
The contact terminals are 1, 2, 3, and 4.
In the case of the 1-pole, single throw (ON-OFF) type, the contact terminals are 1 and 2.
In the case of the 1-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.
Wiring diagram(Bottom view)
1-pole, single throw (ON-OFF)
1-pole, double throw (ON-ON)
2-pole, single throw (ON-OFF)
Diagram of recommended locations
for panel mounting holes
Remark: Contact us if you are considering using a
panel of other than the recommended size
and shape.
Panel thickness X Y
1 to less than 1.8 30.4 22.0
1.8 to 2.3 31.1 22.0
ON (set): 1-2
2
56
1
Reset:
Set:
1-4 closed
1-2 closed
24
56
1
2
56
4
13
ON (set): 1-2 closed
3-4 closed
X
Y
R Max. 01
+0
0.1 +0.1
0
+0
0.1 +0.1
0
All Rights Reserved © COPYRIGHT Matsushita Electric Works, Ltd.
AJ8R
NOTES
COIL TERMINAL CONNECTOR
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 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. Regarding fastening lead wires to
terminals
(1) When connecting the .250 Quick-
connect 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.
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. Check and evaluate this
possibility before using these
switches under such conditions.
12. When using an ON-OFF type
switch with no (I 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.
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
All Rights Reserved © COPYRIGHT Matsushita Electric Works, Ltd.