Handling Precautions
Caution
˙ Do not store and use in abnormal environment such as high temperature, high humidity, dust, corrosive gas, vibration, impact and
others It may cause electric shock, fire and malfunction.
˙Ensure that rubbish, foreign substances such as concrete powder, metal powder, rainwater and others do not flow in.
˙When handling the product, do not use lubricants. It may cause electric shock and fire.
˙ Electrical works must be conducted by qualified technicians with certifications related to electrical works. It may cause electric shock
and fire.
Inspection items before use
˙Ensure that calibration work is not skipped. It may cause malfunction.
Installation, usage and maintenance precautions
˙Frequently check the fastening state, assembly and combination status of the bolt. It may cause electric shock, fire and malfunction.
˙ Check whether the rated current, voltage and frequency conform to the intended specification. It may cause electric shock, fire and
malfunction.
˙ As for the wiring work, check whether the upper protection relay has been turned off so that electricity does not flow. It may cause
electric shock.
˙Connect the power that conforms to the ratings of the switch/contactor’s main unit. It may cause fire and malfunction.
˙ As for the wiring and terminal, use the standard product and as for the terminal screw, fasten using the torque indicated in the user
manual. It may cause fire.
˙Frequently check the wiring state and shape. It may cause electric shock, fire and malfunction.
˙Check whether parts have been omitted and replace damaged products and parts. It may cause electric shock, fire and malfunction.
˙ In case of abnormality in the contact, replace immediately and do not arbitrarily process such as trimming the contact using string or
use lubricant. It may cause electric shock, fire and malfunction
˙Use the specified tool. It may cause damage and malfunction.
31
Electronic Motor Protection Relays
VCB
MCCB
ACB
MS
RELAY
Summary of Contents for Earth Leakage HGMP N60 Z
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