4. Unpacking
(1) Confirm that the type and rating match your requirements including specifications. The type is indicated on the
packing box and wrapping paper.
(2) Check if there are any missing parts or damage due to an accident during transportation.
5. Precautions in Handling, Unpacking, and Storage
(1) It is recommended that the product be used and operated immediately after unpacking. When storing the
product, pay attention to the following points.
• Carefully store the product so that it is not exposed to water (rain water, etc.) or moisture to avoid
condensation.
• Store the product in a clean place free of dust.
• Store the product in a place free of corrosive gas.
• Store the product in a packaged state and in a place where it is not exposed to high temperature, high
humidity, corrosive gases or direct sunlight.
6. Mounting
(1) Mount the product in a place where there is little humidity, dust, smoke, inflammable gas, steam, oil steam, salt,
corrosive gas, or vibration.
(2) Mount the product on a vertical plane. The allowable inclination angle is 30° or less. (Figure 6.1)
(3) Pay attention to the following points with regard to the space for mounting. (Figure 6.2)
• Provide a space of at least the value shown in the Figure below.
The dimension C is a value specified under the short-circuit breaking capacity test conditions in the IEC
standard, JIS standard, and JEM standard.
• When the products are mounted by dense side-by-side mounting, the service life of the coil may be reduced
due to temperature rise depending on the service condition (continuous current usage or dense side-by-side
mounting of products with high switching frequency).
Besides, the characteristics of thermal overload relays will slightly change due to the influence of heat
generated by heaters. When installing the products very closely to one another, they need to be separated
from one another by at least 5 mm.
Figure 6.1 Mounting Angle Figure 6.2 Minimum Mounting Space
(4) For using thermal overload relays in combination with magnetic contactors, refer to the following table.
Thermal
overload relay
To Next Page
Loading...