Mitsubishi Electric MS-T Series Instruction Manual page 3

Please read this Instruction Manual and enclosed documents before starting mounting, operation,
maintenance and inspections to ensure correct usage. Thoroughly understand the equipment and device,
safety information and precautions before starting operation. The safety precautions are ranked as
"WARNING" and "CAUTION" in this Instruction Manual.
WARNING
CAUTION
Note that some items described as ! CAUTION may lead to serious results depending on the situation.
Both instruction levels must be observed because they are very important for safety.
 The contents of this Instruction Manual are subject to change without notice.
 Mitsubishi Electric will not be held responsible for any damage caused by repairs, disassembly or
modifications by a party other than Mitsubishi or a Mitsubishi Electric Service Center.
 For the use in high-reliability-requiring applications such as nuclear energy control, moving objects
including vehicles, traffic light control, medical purposes, etc., please contact Mitsubishi.
 Despite our continuous efforts to improve the quality and reliability of our product, the product could fail.
Vibration, shocks, improper wiring to the magnetic contactor may also cause a failure and may also lead to
a serious consequence such as a machine malfunction and power supply short-circuit. Take measures to
prevent secondary damage such as personal injuries or fires resulting from this product's failure and
malfunction.
 Store the "Instruction manual" and "Precautions for Use" enclosed with the product in a place that is easily
accessible.
 Always disconnect the product from the power source before starting installation, maintenance or
inspections. There is a risk of electric shock.
Failure to observe this could result in serious results (machine malfunction, power supply short-circuit, etc.)
caused by vibration or impact of the product or by improper wiring, etc.
 Do not touch or go near the product (especially live sections such as terminals) while the power is ON.
Failure to observe this could lead to electric shocks or burns.
 Do not modify or disassemble the MS-T series. The parts such as the contacts or coils cannot be replaced.
Failure to observe this could result in faults.
 Secure a space larger than that specified in the Instruction Manual when mounting the product.
Failure to observe this could lead to burns or fires.
 Use wires that meet the applied voltage, continuity current, and inrush current, and tighten them with the
tightening torque specified in the Instruction Manual.
 Always confirm the ratings and specifications, and use the product within the specified ratings and
specifications.
Use in an environment that exceeds the ratings or specifications could lead to ground faults or short circuit
accidents due to destruction of insulation, fires due to overheating, and damage due to inhibited shut off.
Safety Precautions
If handling is mistaken, a dangerous situation may occur, leading to fatal or major
injuries.
If handling is mistaken, a dangerous situation may occur, leading to medium or
minor injuries, or only material damage.
WARNING
CAUTION
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