G7L

G7L

14

Precautions

Refer to page NO TAG for general precautions.

Handling

! To preserve performance, do not drop or otherwise subject the

Power Relay to shock.

! The case is not designed to be removed during normal handling

and operation. Doing so may affect performance.

! Use the Power Relay in a dry environment free from excessive

dust, SO2,H2S, or organic gas.

! Do not allow a voltage greater than the maximum allowable coil

voltage to be applied continuously.

! Do not use the Power Relay outside of specified voltages and

currents.

! Do not allow the ambient operating temperature to exceed the

specified limit.

Installation

! Although there are not specific limits on the installation site, it

should be as dry and dust-free as possible.

! PCB Terminal-equipped Relays weigh approximately 100 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.

! Quick-connect terminals can be connected to Faston receptacle

#250 and positive-lock connectors.

! Allow suitable slack on leads when wiring, and do not subject the

terminals to excessive force.

Cleaning PCB Terminals

! PCB terminals have flux-tight construction which prevents flux

from penetrating into the Relay base housing, e.g., due to

capillary action up the terminals when Relay is soldered onto the

PCB. This type of Relay cannot be immersed for cleaning.

Connecting

! Refer to the following table when connecting a wire with a

crimp-style terminal to the G7L.

Terminals

Screw terminals

Front-connecting

Socket

Coil

8

5.8

5

M3.5

8

6.5

5.3

M3.5

Contact

5.5

6.5

9.2

M4

7

5.5

9.2

M4

Rated Current Flow

When using B-series (screw) products, the rated current from the

screw terminals (M4) should be 20 A or less according to jet stan-

dard (electrical appliance and material control law of Japan).

Operating Coil

! As a rule, either a DC battery or a DC power supply with a

maximum of 5% ripple must be used for the operating voltage for

DC Relays. Before using a rectified AC supply, confirm that the

ripple is not greater than 5%. Ripple greater than this can lead to

variations in the operating and reset voltages.

As excessive ripple can generate pulses, the insertion of a

smoothing capacitor is recommended as shown below.

Emax.:

Max. ripple

Emin.:

Min. ripple

E mean: Mean DC value

Smoothing

capacitor

Relay

Ripple

Emin. Emax.

Emean

DC fraction

% of ripple =

x 100

Emax. -- E min.

E mean

! When driving a transistor, check the leakage current and

connect a bleeder resistor if necessary.

DIN Track Mounting Adapter and

Front-connecting Socket

DIN Track Mounting

! Use a DIN-conforming 50-cm track or 1-m track (both are sold

separately) for mounting a number of G7L Relays.

Cut and shorten the track to an appropriate length it if the

required track length is less than 50 cm.

! The DIN Track Mounting Adapter and Front-connecting Socket

can be mounted on the G7L with just one hand and dismounted

with ease by using a screwdriver.

! To support the G7L mounted on a DIN Track Mounting Adapter

or Front-connecting Socket, use the PFP-M End Plate. Put the

End Plate onto the DIN Track Mounting Adapter or

Front-connecting Socket so that the surface mark of the End

Plate faces upwards. Then tighten the screw of the End Plate

securely with a screwdriver.

Screw Mounting

! Screw-mount theDINTrack MountingAdapter orFront-connect-

ing Socket securely after opening screw mounting holes on

them.

! When cutting or opening holes on the panel after the

Front-connecting Socket is mounted, take proper measures so

that the cutting chips will not fall onto the Relay terminals. When

cutting or opening holes on the upper part of the panel, mask the

Front-connecting Socket properly with a cover.

ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.

To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.

Cat. No. J055-E1-3A