SECTION 4 • INSTALLATION
INTRODUCTION
The relays are shipped in sturdy cartons to prevent damage during transit. Upon receipt of a relay, check
the model and style number against the requisition and packing list to see that they agree. Inspect the
relay for shipping damage. If there is evidence of damage, file a claim with the carrier, and notify your
sales representative or Basler Electric.
If the relay will not be installed immediately, store it in its o
riginal shipping carton in a moisture- and dust-
free environment. Before placing the relay in service, it is recommended that the test procedures of
Section 5, Testing be performed.
RELAY OPERATING GUIDELINES AND PRECAUTIONS
Before installing or operating the relay, note the following guidelines and precautions.
• For p
roper current operated target operation, a minimum current of 200 milliamperes must flow
through the output trip circuit.
• If a wiring in
sulation test is required, remove the connection plugs and withdraw the relay from its
case.
• An unde
rvoltage target indication may occur when the lower connection paddle is removed if:
• The in
stantaneous time function is selected, or
• A time delay (definite or in
verse) below 0.3 seconds is selected.
No actual trip output occurs if the upper paddle is removed first.
CAUTION
When the connection plugs are removed, the relay is disconnected from the
operating circuit and will not provide system protection. Always be sure that
external operating (monitored) conditions are stable before removing a relay for
inspection, test, or service.
NOTE
Be sure that the relay is hard-wired to earth ground with no smaller than 12 AWG
copper wire attached to the ground terminal on the rear of the case. When the
relay is configured in a system with other devices, it is recommended to use a
separate lead to the ground bus from each device.
MOUNTING
Because the relay is of solid-state design, it does not have to be mounted vertically. Any convenient
mounting angle may be chosen.
Panel cutting and drilling dimensions are shown in Figures 4-1 and
4-3. Case dimensions are illustrated in
Figures 4-4 through 4-11. Case cover dimensions are shown in Figure 4-12.
9170600990 Rev H BE1-27/59 Installation 4-1
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