Instructions, Maintenance, Ordering information – Basler Electric BE3-27 User Manual
Page 2: Figures, 2 of 2

Undervoltage
Adjust the SET control fully CCW and the RESET control fully CW.
Decrease the applied sensing voltage from the nominal value until
the desired tripping voltage is reached.
Slowly adjust the SET control CW until the relay trips.
Increase the applied voltage to the desired reset level.
Slowly adjust the RESET control CCW until the relay resets.
MAINTENANCE
BE3 relays are solid-state devices that require no maintenance. In
the event that your relay requires repair, contact Basler Electric,
Highland, IL, USA for return authorization.
ORDERING INFORMATION
Figure 2 shows the BE3 style number identification chart.
FIGURES
Figure 1. BE3-27, BE3-59, BE3-27/59 AC Voltage Connections
Figure 2. BE3-27, BE3-59, BE3-27/59 Style Number Identification Chart
BE3-27, BE3-59, BE3-27/59
N
1) Single Phase
3) Three Phase
Three Wire
4) Three Phase
Four Wire
Sensing Input
Type
MODEL NO.
P
0
0
6
1
-7
4
A) 120 Vac
B) 240 Vac
C) 380 Vac
D) 480 Vac
S) Special voltage
Nominal Input Type
1
2
1) 50/60 Hz
2) 400 Hz
Frequency
N) Not required
External Power
1) Energize to trip (59)
2) De-energize to trip (27)
3) Energize to trip over, de-
energize to trip under (27/59)
Output Type
1
2
For other voltage applications, contact Basler Electric.
Voltages are line-to-line.
Publication
9319200990
Revision
E
Instructions
Date
04/14
Page
2 of 2