11/16
1 HDU 05004-YN Rev. C
5.4 Technical Data of the Auxiliary Switches
- Switching capacity of each contact = 2 A at 220 V DC, T = 20 ms
- Current carrying capacity = 10 A
NC contact
NO contact
Main contact of
disconnector
00
9.5 ...17.5
00
0 190
Off On
Auxiliary switch, functional diagram
00
9.5 ...17.5
6 Transportation and Storage
Each operating mechanism is specially packed before shipment.
As soon as the equipment arrives at the place of destination an inspection for damage in transit should
be carried out to find out the extent of damage, the cause of damage and, if necessary, its originator.
The damage report, if any, should immediately be sent to the appropriate forwarding agency to be
passed on to the transportation insurance company.
The operating mechanisms should be stored indoor. In dry climate the duration for transportation and
storage of the operating mechanisms must not exceed 6 month without heating. For longer times of
storage or if there is danger of moisture condensation the heater has to be connected unless
precautions were taken by appropriate packing or storage to prevent moisture condensation.
7 Installation
Every operating mechanism should be mounted in accordance with the mounting instructions for the
unit for which it is intended and relevant order bound drawings.
For direct attachment of the operating mechanisms to disconnectors or earthing switches designed for
wall mounting, special instructions if supplied alongwith the unit have to be observed. If the customer
decides at a later date to mount the equipment in this way, he should contact our sales department for
these instructions.
The interior parts of the operating mechanisms (e.g. Auxiliary switches, contactors, etc.) are not
resistant to the atmospheric conditions prevailing outdoors ; therefore, care must be taken to ensure
that parts are not exposed to humidity during installation.
Connection of the motor control components is made at terminal strip (5), and that of Auxiliary switch
(3) directly at the Auxiliary switch contacts or at the terminal strip (5), depending on customer’s order.
To avoid condensation it is absolutely necessary to connect the heater (11) . After installation the heater
is to be commissioned immediately even if the associated disconnectors and earthing switches have
not yet been commissioned.
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