BE1-25 Installation
4-1
SECTION 4
•
INSTALLATION
GENERAL
When not shipped as part of a control or switchgear panel, the relays are shipped in sturdy cartons to
prevent damage during transit. Immediately upon receipt of a relay, check the model and Style Number
against the requisition and packing list to see that they agree. Visually inspect the relay for damage that
may have occurred during shipment. If there is evidence of damage, immediately file a claim with the
carrier and notify the Regional Sales Office, or contact the Sales Representative at Basler Electric,
Highland, Illinois.
In the event the relay is not to be installed immediately, store the relay in its original shipping carton in a
moisture and dust free environment. For more information, see Section 6, Maintenance. When the
BE1-25 is to be placed in service, it is recommended that the Operational Test Procedure be performed
prior to installation.
RELAY OPERATING PRECAUTIONS
Before installation or operation of the relay, note the following precautions:
1.
A minimum of 0.2 A in the output circuit is required to ensure operation of current operated
targets.
2.
The relay is a solid-state device. If a wiring insulation test is required, remove the connection
plugs and withdraw the cradle from its case.
3.
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.
4.
Be sure the relay case is hard wired to earth ground using the ground terminal on the rear of the
unit. It is recommended to use a separate ground lead to the ground bus for each relay.
DIELECTRIC TEST
In accordance with IEC 255-5 and IEEE C37.90, one minute dielectric (high potential) tests as follows:
All circuits to ground:
2121 Vdc
Input to output circuits: 1500 Vac or 2121 Vdc
MOUNTING
Relay
Because the relay is of solid-state design, it does not have to be mounted vertically. Any convenient
mounting angle may be chosen. Relay outline dimensions and panel drilling diagrams are supplied at the
end of this section.
Resistor Module
When the condition and mode switching of the Voltage Monitor option is controlled by external contacts
(option 2-C, 2-U, or 2-V), a voltage dropping Resistor Module is bolted to the rear of the relay (Figure 4-9).
If the relay is to be projection mounted (Figure 4-3), it will be necessary to first remove the module when
mounting the relay, then reattach it so that the mounting panel lies between the relay and module.
In planning the installation, reserve a clear space directly behind the relay, or behind the mounting panel if
projection mounted, since the Resistor Module will give off some heat during use.
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