Precautions for Correct Use of Terminal Relays

Mounting

Heat generated by the relays must be considered when mounting relays side-by-side.

Space must be provided between the relays or other methods must be taken to maintain the relays' ambient temperature at 55°C or lower (80°C for the G3S4).

Relay Replacement

Use the P6B-Y1 Removal Tool for the G6B-4CB, the G6B-4[][]ND, and the G3S4 as shown in the diagram.

Use the Removal Tool connected to the Terminal Relay for the G6D-F4B/-4B and the G3DZ-F4B/-4B.

Be sure to turn OFF the power before replacing a relay.

Relays must be inserted straight onto the socket connector pins to ensure proper connection.

G6B-48BND relays (high reliability) are connected directly to boards to increase reliability and the relays are thus not replaceable.

Do not use relays together that are different to one another in voltage.

Wiring

Be sure to connect the input terminals with the correct polarity. G3S4-D relay output terminals also have polarity that needs to be connected correctly.

Coil Voltage

Be sure not to impose voltage exceeding the permissible voltage on the coil continuously.

Do not use the relays when other inductive loads are connected in parallel with the coil input or when there are surges during power supply because the built-in diodes used to absorb surge may be destroyed.

Handling

Do not drop, shock, or vibrate the Relay excessively or apply excessive force to the terminals.

Make sure that all the Relays are properly mounted before use.

Screw Tightening Torque

Tighten each terminal screw to a torque of 0.78 to 1.18 Nm.

Tighten each mounting screw to a torque of 0.59 to 0.98 Nm.

Installation Environment

Do not install the Unit in the following locations. Otherwise, damage to the Unit may result or the Unit may malfunction.

Locations subject to direct sunlight.

Locations subject to an ambient temperature range not within 0°C to 55°C.

Locations subject to rapid temperature changes resulting in condensation or locations with relative humidity ranges not within 10% to 90%.

Locations subject to corrosive or inflammable gas.

Locations subject to excessive dust, salinity, or metal powder.

Locations subject to vibration or shock affecting the Unit.

Locations subject to water, oil, or chemical sprayed on the Unit.

Disassembly, Repair, and Modification

Do not disassemble, repair, or modify the Relay. Otherwise, an electric shock may result or the Relay may malfunction.

Mounted Relays

Note:

1. Replacement is not possible for G6B-48BND.

2. Make sure the socket voltage specifications are the same as the relay voltage specifications.

3. Do not use relays together that are different to one another in voltage.