Page 1
Solid State Relay
SSJ
SERIES
Installation Manual
Thank you for purchasing this RKC product. In order to
achieve maximum performance and ensure proper operation
of your new instrument, carefully read all the instructions in
this manual. Please place this manual in a convenient
location for easy reference.
SYMBOLS
WARNING
CAUTION
All Rights Reserved, Co pyright 2003, RKC INSTRUMENT INC.
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: This mark indicates precautions that must be
taken if there is danger of electric shock, fire,
etc., which could result in loss of life or injury.
: This mark indicates that if these precautions
and operating procedures are not taken,
damage to the instrument may result.
: This mark indicates that all precautions should
!
An external protection device must be installed if
failure of this instrument could result in damage to
the instrument, equipment or injury to personnel.
All wiring must be completed before power is turned
on to prevent electric shock, fire or damage to
instrument and equipment.
In addition, in order to prevent an electric shock, use
the instrument with the cover closed while the power
is turned on.
Do not use this instrument which is not covered with
the specifications described.
If used, product combustion or failure may result.
Do not use the instrument at places where afire may
be caused or heat generated. If so, product
combustion or smoke emission may result.
Do not touch this instrument while the power is
turned on or just after the power is turned off as it
may be at high temperatures. If touched, burning
may result.
RKC is not responsible if this instrument is repaired,
modified or disassembled by other than
factory-approved personnel. Malfunction can occur
and warranty is void under these conditions.
be taken for safe usage.
: This mark indicates important information on
installation, handling and operating
procedures.
: This mark indicates supplemental information
on installation, handling and operating
procedures.
: This mark indicates where additional
information may be located.
WARNING
!
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IMR01S01-E2
RKC INSTRUMENT INC.
®
Tighten each output terminal screw at an appropriate
torque value. If the product is used with the screw
loosened, product combustion may result due to heat
generated in the terminal board.
Do not block the circulation of air by convection around the
product. If so, shorting or combustion of the output
elements may result from abnormal heat generation.
If ambient temperatures rise due to self-heating of this
product, install forced ventilation fans so that the product
can be fully ventilated.
Do not apply overvoltage or overcurrent to this product. If
so, its output elements may be damaged.
CAUTION
NOTICE
This manual assumes that the reader has a fundamental
knowledge of the principles of electricity, process control,
computer technology and communications.
RKC is not responsible for any damage or injury that is
caused as a result of using this instrument, instrument
failure or indirect damage.
Every effort has been made to ensure accuracy of all
information contained herein. RKC makes no warranty
expressed or implied, with respect to the accuracy of the
information. The information in this manual is subject to
change without prior notice.
No portion of this document may be reprinted, modified,
copied, transmitted, digitized, stored, processed or
retrieved through any mechanical, electronic, optical or
other means without prior written approval from RKC.
Company names and product names used in this
manual are the trademarks or registered trademarks of
the respective companies.
1. OUTLINE
This instrument is a single-phase Solid State Relay (SSR).
The 15 A, 25 A and 45 A types are available.
This installation manual describes their great caution,
mounting and wiring.
Model code
(order separately)
SSR
SSJ-15 (15 A AC)
SSJ-25 (25 A AC)
SSJ-45 (45 A AC)
Heat radiation fin
RF-060 (For 15 A AC)
RF-120 (For 25 A AC, 45 A AC) 1
RF-200 (For 25 A AC, 45 A AC) 2
1
When the RF-120 is availed, use each SSR by decreasing its
maximum load current.
2
SSR integrated with heat radiation fin
(order combination)
SSJ-15F1 (SSJ-15 and RF-060)
SSJ-25F2 (SSJ-25 and RF-120)
SSJ-25F3 (SSJ-25 and RF-200)
SSJ-45F2 (SSJ-45 and RF-120)
SSJ-45F3 (SSJ-45 and RF-200)
For the ambient temperature characteristic, see 2.1
Mounting Environment.
The RF-200 is equivalent to the heat radiation fin JHA-200
manufactured by JEL SYSTEM CO., LTD.
(order separately)
Page 2
2. MOUNTING
To prevent electric shock or instrument failure,
always turn off the power before mounting or
removing the instrument.
2.1 Mounting Environment
Avoid the following conditions when selecting the mounting
location:
Ambient temperature of less than 20 °C or more than
+80 °C.
Ambient temperature characteristic (
15
10
5
Maximum l oad current (A)
0
-20 0 20 40 80 100
Maximum load current (A) Maximum l oad current (A)
Rapid changes in ambient temperature which may cause
condensation.
Corrosive or inflammable gases.
Direct vibration or shock to the mainframe.
Water, oil, chemicals, vapor or steam splashes.
Excessive dust, salt or iron particles.
Excessive induction noise, static electricity, magnetic fields
or noise.
Exposure to direct sunlight.
Excessive heat accumulation.
Ambient temperature ( C)
Ambient temperature characteristic (
30
25
20
15
10
5
0
-20 0 20 40 80 100
Ambient temperature characteristic (
60
50
40
30
20
10
0
-20 0 20 40 80 100
Ambient temperature ( C)
Ambient temperature ( C)
!
WARNING
60
60
60
)
SSJ-15
No heat radiation
fin
With heat radiation
fin (RF-060)
SSJ-25
)
No heat radiation
fin
With heat radiation
fin (RF-120)
With heat radiation
fin (RF-200)
)
SSJ-45
No heat radiation
fin
With heat radiation
fin (RF-120)
With heat radiation
fin (RF-200)
2.2 Dimensions
SSJ-15, 25 and 45
All the dimensions of SSJ-15, SSJ-25 and SSJ-45 is the
same.
With heat radiation fin RF-060
With heat radiation fin RF-120
10
a
Input signal
indication lamp
47.5
b
60
120 0.3
60
25
41
60 0.3
58.5
59
58.5
4.6
4.6
123 2
123 2
47
b
4 MAX.
101
101
a
Cover
Model
SSJ-1 5
30 MAX.
SSJ-2 5
SSJ-4 5 b M5 M4
2-M4
Unit: mm
Term inal sc rew
a
7
7
60
M4
Unit: mm
4.2
2-M4
Approx. 63
Unit: mm
4.2
Approx. 63
2
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With heat radiation fin RF-200
200
59
54
2-M4
112
125
100
Unit: mm
10
4- 4
10
2.3 Mounting Direction
Mount this instrument in the direction shown below.
Vertical
direction
Do not mount SSJs on a horizontally positioned
mounting panel.
Upper
The output terminals are
placed on the upper side.
SSJ
Lower
2.4 Mounting
Make screw holes in the mounting panel by referring to the
mounting dimensions.
No heat radiation fin (SSJ-15, 25 and 45)
Mounting dimensions
2- 4.5 or 2-M4
47.5 0.5
Screw type: M4 SEMS pan-head screws
Recommended tighten torque:
1.18 to 1.37 N m (12 to 14 kgf cm)
Unit: mm
With heat radiation fin RF-060
2-3M
Unit: mm
117
Mounting dimensions
Recommended tighten torque:
1.18 to 1.37 N m (12 to 14 kgf cm)
With heat radiation fin RF-120
4-3M
Unit: mm
59
117
Mounting dimensions
Recommended tighten torque:
1.18 to 1.37 N m (12 to 14 kgf cm)
With heat radiation fin RF-200
4- 4.5
Unit: mm
180 1
112 1
Mounting dimensions
Recommended tighten torque:
1.18 to 1.37 N m (12 to 14 kgf cm)
When the instrument is mounted to the heat radiation
fin
When fixing the radiating fin to this instrument, tighten it with
the recommended tightening torque as shown in the
following table. Also in this case, apply silicone grease
(G-746 manufactured by Shin-Etsu Silicones or equal) to the
radiating portion of this instrument.
Firmly fix the radiating fin to the instrument with
the specified torque. Insufficient tightening may
cause insufficient radiation.
Combination
Screw
type
Recommended
tighten torque
SSJ-15 and RF-60
SSJ-25 and RF-120
SSJ-25 and RF-200 2-M4 1.47 N m (15 kgf cm)
SSJ-45 and RF-120
SSJ-45 and RF-200
IMR01S01-E2
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3. WIRING
To prevent electric shock or instrument failure, do
not turn on the power until all the wiring is
completed.
3.1 Wiring Cautions
Separate wiring on the input side of this instrument from
that on the output side.
This instrument may malfunction if its input side is
affected by noise. In that case, take the following
measures.
- Keep input wiring as short as possible.
- Use twisted pair or shielding wires.
Use wires satisfying the rated current capacity.
If current exceeding the rated surge current flows
through the output side, the internal element of this
product may be damaged. In order to protect the internal
element, install a fuse in series with the load on the
output side.
This instrument conforms to EN55011 Noise Terminal
Voltage with a capacitor connected as shown in the
following.
0/12 V DC
Recommended capacitor: ECQU2A225KL (2.2 F)
(Manufactured by Matsushita Electronic Components
Co., Ltd.)
Use the solderless terminal appropriate to the screw
size. In addition, imperfect terminal screw tightening may
result in product combustion due to heat generation
while the power is being turned on. Therefore, tighten
each terminal screw at an appropriate torque value.
Model Terminal screw type
SSJ-15 Input terminal 1: M4 1.47 N m
SSJ-25 Output terminal 2: M4 (15 kgf cm)
SSJ-45 Input terminal 1: M4 1.47 N m
(15 kgf cm)
Output terminal
(20 kgf cm)
3/A1+ and 4/A2
1/L1 and 2/T1: Output terminals
input
WARNING
!
SSJ
Load
: M5 1.96 N m
: Input terminals
200 V AC
Recommended
tighten torque
3.2 Wiring Example
Conduct wiring by referring to the following figure.
200 V AC
Controller
Fast-blow fuse
1/L1
(Output t ermi nal)
4/A2
(Input termi nal)
Input si gnal 0/ 12 V DC
Load
2/T1
(Output t ermi nal)
SSJ
3/A1+
(Input t erminal)
4. SPECIFICATIONS
Maximum
load current
Making current
(Maximum moment
inrush current)
Input signal Voltage pulse input (DC):
Maximum
input current
Response speed 1/2 cycle+1 ms or less
Input protection Protection of reverse polarity
Output protection CR protection circuit and varistor
Output ON
voltage drop
Load voltage 35 to 264 V AC
Insulation resistance 100 M or more at 500 V DC
Withstand voltage 1 minute at 3000 V AC
Leakage current 12 mA or less (200 V AC)
Insulation method Phototriac
Safety standards UL
Dimensions See 2.2 Dimensions.
Weight SSJ-15, 25 and 45: Approx. 60 g
15 A AC (SSJ-15)
25 A AC (SSJ-25)
45 A AC (SSJ-45)
150 A (SSJ-15)
225 A (SSJ-25)
440 A (SSJ-45)
LOW (OFF): 0 V
HIGH (ON): 3.5 to 30 V
10 mA
(Built-in constant current circuit)
connection
1.5 V or less
cUL
VDE (VDE-Reg.-Nr. 40005190)
[CE conformed]
RF-60: Approx. 165 g
RF-120: Approx. 330 g
RF-200: Approx. 760 g
The first edition: APR. 2003 [IMQ00]
The second edition: APR. 2003 [IMQ00]
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