Basler Electric BE1-25 - Manual (Page 19)

SPECIFICATIONS
Voltage and Phase Sensing Nominally rated at 60 hertz with a range of 45 to 65 hertz at a
maximum burden of 1 VA per phase to 125% of nominal voltage.
Maximum continuous voltage rating is 160% of nominal.
Contact Sensing User-supplied contacts with a minimum rating of 0.05 ampere at
250 Vdc are required at all contact sensing inputs. (Specifically the
52b input, the optional expandable phase angle window, and the
optional external voltage condition switches.)
Sensing circuit current is supplied by the relay when isolated
sensing is selected. Non-isolated sensing requires an externally
applied dc sensing voltage equal to the nominal voltage of the
relay power supply input.
Contact Sensing Burden
For Power Supply Option O ...... 2.4 VA
For Power Supply Option P ....... 6.25 VA
For Power Supply Option R ....... 1.2 VA
For Power Supply Option T…….12.5 VA
Power Supply One of the four types of power supplies listed in Table 1-1 may be
selected to provide internal relay operating power.
Table 1-1. Power Supply
Type
Input Voltage
Burden at Nominal
Nominal Range
O (mid range) 48 Vdc 24 to 150 Vdc 1.5 W
P (mid range)
125 Vdc
120 Vac
24 to 150 Vdc
90 to 132 Vac
1.8 W
10.5 VA
R (low range) 24 Vdc 12 to 32 Vdc ∗ 1.6 W
T (high range)
250 Vdc
240 Vac
68 to 280 Vdc
90 to 270 Vac
2.1 W
17.4 VA
∗ Type R power supply may require 14 Vdc to begin operation. Once operating, the voltage may be
reduced to 12 Vdc.
CAUTION
If contact sensing is isolated (style number Mxxxxxx5xxx), external voltage
should not be applied to the contact sensing inputs. Applying voltage to the
contact sensing inputs will result in damage to the relay.
9170200990 Rev U BE1-25 General Information 1-9