TERASAKI TemPower2 AR-E Series, Instruction Manual

Page: 8 / 46

KRB-5368c
-8-
2-2. Storage Precautions
It is recommended that the ACB be used as soon as you have received it. If it is necessary to store the ACB, note the following:

Store the ACB in a dry indoor location to prevent condensation due to sudden changes in ambient temperature. Condensation has
a harmful effect on the ACB insulation.
 Store the ACB in a clean place free of corrosive gases and dust. In particular, exposure to a mixture of moisture and cement dust
may cause corrosion damage to metal parts of the ACB.

Place the ACB on a flat, level surface in its normal position (Do not lay the ACB).

Do not place the ACB directly on the floor. Do not stack the ACBs during storage.
2-3. Installation Precautions
CAUTION
 Electrical work must be done by competent persons.
 Do not place the ACB in such an area that is subject to high temperatures, high humidity, dusty air, corrosive gases, strong
vibration and shock, or other unusual conditions. Mounting the ACB in such an area could cause a fire or malfunction.

Be careful to prevent foreign objects (such as debris, concrete powder, dust, chippings, and iron powder) and oil or rainwater
from entering the ACB. These materials inside the ACB could cause a fire or malfunction.
 Prior to commencing any work on the ACB, open an upstream circuit breaker or the like to isolate all sources of
power/voltage. Otherwise, electric shock may result.

When terminating conductors to the ACB, tighten terminal screws to the torque specified in this manual. Otherwise, a fire
could result.

For 4-pole ACBs, be sure to connect a 3-phase, 4-wire neutral conductor to the N-phase pole (on the right end). Otherwise, an
overcurrent may hinder the ACB from tripping, resulting in a fire.
 Do not install the ACB in such an area that is exposed to direct sunlight.

Make sure that the mounting base has a sufficient capacity of bearing the weight of the ACB (see Table 3). The mounting base
must be protected against vibration. Take appropriate measures to provide a perfect protection to the mounting base against
resonance. Otherwise, open/close operation of the ACB may cause a malfunction of other devices in the switchboard or vibrations
of the switchboard may cause a malfunction of the ACB.
 Use the following screws with appropriate length for the main circuit terminals.
Main circuit terminal screws: Hex head M10, with flat washers (2), spring washer (1) and nut (1) per screw
Tightening torque: 22.5 - 37.2 N·m
Table 1 Number of main circuit terminal screws required
ACB type AR206E - AR216E
Number of main circuit terminal screws (3/4-pole) Vertical, Horizontal, Front terminals 12/16

Use the following screw for the ground terminal. The screw must have a length that allows it to be inserted 4 - 9 mm into the
ground terminal M8 tapped hole.
Ground terminal screw: M8 (1) with spring washer and flat washer
Tightening torque: 11.8 - 14.7 N·m