Electrostatic Discharge; Handling Precautions; External Connections; Optinal Case Model S1-Gre110, S3-Gre110 - Toshiba GRE110 Instruction Manual

Overcurrent protection relay
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TB2
TB1
(a) model 400A, 401A, 420A , 421A, 820A and 821A

5.3 Electrostatic Discharge

CAUTION
Do not remove the relay PCB from the relay case since electronic components on the modules are
very sensitive to electrostatic discharge.

5.4 Handling Precautions

A person's normal movements can easily generate electrostatic potentials of several thousand volts.
Discharge of these voltages into semiconductor devices when handling electronic circuits can cause
serious damage. This damage often may not be immediately apparent, but the reliability of the
circuit will have been reduced.
The electronic circuits are completely safe from electrostatic discharge when housed in the case. Do
not expose them to risk of damage.

5.5 External Connections

External connections for each relay model are shown in Appendix G.

5.6 Optinal case model S1-GRE110, S3-GRE110

GRE110 has optional case models S1-GRE110 and S3-GRE110.
These models have steel case and S3-GRE110 can realize 2 out of 3 relay logic.
Details are shown in 6F2T0191 and 6F2T0195
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TB3
Fig. 5.2.4 Rear view of the relay
 157 
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TB2
TB1
(b) model 402A and 422A
6 F 2 T 0 1 7 2

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