RT-3
TERMINAL BLOCK
We recommend using wire-pressed terminals for connection
to the terminal portion.
Applicable electrical wire
0.25 to 1.65 mm
.01 to .065 inch
Applicable wire-pressed terminals
14
2
mm
inch
.118 min.
.220 max.
.177 min.
.157
.118 dia. min.
.220 max.
.117 min.
.157
ACCESSORIES
Short circuit plate
Use when you want to bridge terminals.
For the external dimensions, see the Options section for
—4-point Unit Relay (Power PhotoMOS Relay Type).—
< With insulator >
AY3802
< Without insulator >
AY3803
CAUTIONS FOR USE
1. Operating environment
1) Keep the product as far way as possible
from power cables, high tension equip-
ment, power equipment, equipment with
transmitting devices such as amateur ra-
dios, or equipment which generates a
large switching surge.
2) The main unit is made of resin; there-
fore, do not use it in areas where it may
come in contact with (or be exposed to)
organic solvents such as benzine, thinner,
and alcohol, or strong alkaline substanc-
es such as ammonia and caustic soda.
3) Do not use the product in areas where
it may be exposed to flammable gases,
corrosive gases, excessive dust, or mois-
ture, or areas where it may be subjected
to strong vibration or shock.
2. Dropping
If a unit is dropped be sure to check its ex-
ternal appearance and characteristics be-
fore using it.
3. Installing and removing the module
1) Firmly insert the module into the socket
with the terminals going in the direction of
the blade receptacles.
2) The module can be easily removed us-
ing the removal key.
(1) Insert the removal key into the socket
slots.
(2) Pull the removal key up to remove the
module.
4. Wiring and circuit configuration
1) Perform wiring according to the internal
schematic. Take care not to make any
mistakes.
2) We recommend the use of wire-
pressed terminals for connection to the
terminal portion.
3) When the load is inductive, we recom-
mend adding a diode or surge absorber at
both ends of the load.
5. Installation
1) Perform mounting hole cutout accord-
ing to the panel cutout drawings.
2) When installing the unit on a DIN rail,
use the DIN rail locking lever on the side
of the unit. Installation is accomplished by
simply fitting the unit onto the rail and
pressing gently.
3) To remove the unit from the DIN rail,
use a flat head screwdriver to pull out the
DIN rail locking lever.
6. Transporting and storage
1) If the product is subjected to extreme
vibration while being transported, the re-
lays may become detached, the lead may
become bent, and the unit may become
damaged. Handle the inner and outer
boxes with care.
2) If the product is stored in an extremely
adverse environment, visible defects and
deterioration of performance characteris-
tics may result. We recommend the fol-
lowing storage conditions.
Temperature: 5 to 30
Humidity: Max. 60% R.H.
Environment: No hazardous sub-
stances such as sulfurous acid gases
and little dust.
7. When equipped with Power Photo-
MOS relay voltage drive type
Since the Power PhotoMOS relay voltage
drive type does not require the current-
controlling resistance on the input side, it
can be used together with PA relays on 4-
point unit relays (PA relay types) or RT-2
relay terminals.
When connecting Power PhotoMOS relay
voltage drive types, since it will be a close
connection, it will be necessary to be
careful of load currents. Be sure to refer to
the information given regarding load cur-
rents and ambient temperature character-
istics in the precautions given for use of
RT-2 relay terminals.
°
C
41 to 86
°
F
DIN rail locking lever
DIN rail
1
2
3
First push in
the DIN rail
locking lever.
Hook the holders on the
unit over the DIN rail.
Press the unit onto
the DIN rail.
1
2
3
Insert the tip of the
flat head screwdriver
into the slot in the
DIN rail locking lever.
Move the
screwdriver in
the direction of
the arrows, and
pull out the lever.
Remove the unit from
the DIN rail.