Basler BE1-50/51M-100 Series User Manual

1-4 BE1-50/51M - General Information
MODEL NUMBERS
Model number variations in the BE1-50/51M Overcurrent Relays are specified by a three digit extension to
the model number. Tables 1-1 and 1-2 provide model number, case style, switch SW3-3 selections, and
sensing current input ranges. Internal switches provide for selecting system operating frequencies of 50 or
60 hertz, instantaneous element delays, curve sets, and instantaneous or integrating reset characteristics.
The location and description of these switches is provided in Section 2. Integrating reset is available in 100
series relays (e.g. - BE1-50/51M-100) when there is adequate input current to power the relay. Integrating
reset is available in 200 series relays (e.g. - BE1-50/51M-200) even when the input current falls to zero.
Two-hundred series relays also have additional characteristic curves available through curve set selection.
Table 1-1. BE1-50/51M Overcurrent Relays, One Ampere CT Secondary, 50/60 Hertz
Model Number Case Style
SW3-3
Selects
Sensing Input Range (Amps)
TIME INST
BE1-50/51M-100* C1 (Horizontal Mount) 0.2 Second Delay 0.1 - 3.18 0.2 - 19.8
BE1-50/51M-200* C1 (Horizontal Mount) Curve Set 0.1 - 3.18 0.2 - 19.8
BE1-50/51M-108* C1 (Vertical Mount) 0.2 Second Delay 0.1 - 3.18 0.2 - 19.8
BE1-50/51M-208* C1 (Vertical Mount) Curve Set 0.1 - 3.18 0.2 - 19.8
Table 1-2. BE1-50/51M Overcurrent Relays, Five Ampere CT Secondary, 50/60 Hertz
Model Number Case Style
SW3-3
Selects
Sensing Input Range (Amperes)
TIME INST
BE1-50/51M-104* C1 (Horizontal Mount) 0.2 Second Delay 0.5 - 15.9 1.0 - 99.0
BE1-50/51M-204* C1 (Horizontal Mount) Curve Set 0.5 - 15.9 1.0 - 99.0
BE1-50/51M-109* C1 (Vertical Mount) 0.2 Second Delay 0.5 - 15.9 1.0 - 99.0
BE1-50/51M-209* C1 (Vertical Mount) Curve Set 0.5 - 15.9 1.0 - 99.0
NOTE:
* 100 series relays (e.g. - BE1-50/51M-104) have the integrating reset
function when there is adequate input current to power the relay. 200 series
relays (e.g. - BE1-50/51M-204) have the integrating reset function even
when the input current falls to zero.
Courtesy of NationalSwitchgear.com

Basler BE1-50/51M-100 Series Specifications

General

Brand	Basler
Model	BE1-50/51M-100 Series
Category	Relays
Language	English