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Precautions
■ Correct Use
Installation
PCB Terminal-equipped Relays weigh approximately 140 g. Be sure
that the PCB is strong enough to support them. We recommend
dual-side through-hole PCBs to reduce solder cracking from heat
stress.
Mount the G7J with its test button facing downwards. The Relay may
malfunction due to shock if the test button faces upwards. Be careful
not to press the test button by mistake because the contacts will go
ON if the test button is pressed.
Be sure to use the test button for test purposes only.
The test button is used for Relay circuit tests, such as a circuit conti-
nuity test. Do not attempt to switch the load with the test button.
Micro Loads
The G7J is used for switching power loads, such as motor, trans-
former, solenoid, lamp, and heater loads. Do not use the G7J for
switching minute loads, such as signals. Use a Relay with a bifur-
cated contact construction for switching micro loads, in which case,
however, only SPST-NO or SPST-NC output is obtained.
Soldering PCB Terminals
Be sure to solder the PCB terminals manually only. In the case of
automatic soldering, some flux may stick to the test button and the
G7J. As a result, the G7J may malfunction.
The G7J is not of enclosed construction. Therefore, do not wash the
G7J with water or any detergent.
Connecting
Refer to the following diagram when connecting a wire with a screw
terminal to the G7J.
7.6
7
4.5
Allow suitable slack on leads when wiring, and do not subject the ter-
minals to excessive force.
Tightening torque: 0.98 N·m
Do not impose excessive external force on the G7J in the horizontal
or vertical directions when inserting the G7J to the Faston receptacle
or pulling the G7J out from the Faston receptacle. Do not attempt to
insert or pull out more than one G7J Unit together.
Do not solder the tab terminals.
Terminal
Receptacle
#250 terminal
AMP170333-1
(6.35 mm in
(170327-1)
width)
AMP170334-1
(170328-1)
AMP170335-1
(170329-1)
Note: Numbers in parentheses are for air feed use.
8.8
M3.5
Housing
AMP172076-1: natural
AMP172076-4: yellow
AMP172076-5: green
AMP172076-6: blue
Operating Coil
Internal Connections of Coils
DC coil
A2
AC coil
A2
If a transistor drives the G7J, check the leakage current, and connect
a bleeder resistor if necessary.
The AC coil is provided with a built-in full-wave rectifier. If a triac,
such as an SSR, drives the G7J, the G7J may not release. Be sure to
perform a trial operation with the G7J and the triac before applying
them to actual use.
Power Relay
A1
A1
G7J
A-65
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