3-10
BE1-32R, -32 O/U FUNCTIONAL DESCRIPTION
Targets
Magnetically latched, manually reset target indicators are optionally available to indicate that the trip output relay
has energized. Either internally operated or current operated targets may be selected. A current operated target
requires a minimum of 0.2 ampere flowing through the output trip circuit, and is rated at 30 amperes for 1
second, 7 amperes for two minutes, and for 3 amperes continuously. The internally operated target should be
selected if the relay has normally closed output contacts.
PUSH-TO-ENERGIZE OUTPUT Pushbutton
A small pushbutton switch is provided to allow testing the primary output contact and (if present) the auxiliary
output contact. To prevent accidental operation, the pushbutton is recessed behind the front panel and is
depressed by inserting a thin, non-conducting rod through an access hole in the front panel.
Power Supply
Basler Electric enhanced the power supply design for unit case relays. This new design created three, wide
range power supplies that replace the four previous power supplies. Style number identifiers for these power
supplies have not been changed so that customers may order the same style numbers that they ordered
previously. The first newly designed power supplies were installed in unit case relays with EIA date codes 9638
(third week of September 1996). A benefit of this new design increases the power supply operating ranges such
that the 48/125 volt selector is no longer necessary. Specific voltage ranges for the three new power supplies
and a cross reference to the style number identifiers are shown in the following table.
Table 3-3. Wide Range Power Supply Voltage Ranges
Power Supply
Style Chart
Identifiers
Nominal Voltage
Voltage Range
Low Range
R
24 Vdc
12† to 32 Vdc
Mid Range
O, P
48, 125 Vdc,
120 Vac
24 to 150 Vdc,
90 to 132 Vac
High Range
T
125, 250 Vdc,
120, 240 Vac
62 to 280 Vdc,
90 to 270 Vac
† 14 Vdc is required to start the power supply.
Relay operating power is developed by the wide range, isolated, low burden, flyback switching, solid state power
supply. Nominal ±12 Vdc is delivered to the relay internal circuitry. Input (source voltage) for the power supply
is not polarity sensitive. A red LED turns ON to indicate that the power supply is functioning properly.
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