Basler Electric BE1-87T - Manual (Page 16)

1-4 BE1-87T General Information 9171300990 Rev V
Model and Style Number
The electrical characteristics and operational features of the BE1-87T Transformer Differential Relay are
defined by a combination of letters and numbers that make up its Style Number. The Model Number
together with the Style Number, describe the options included in a specific device and appear on the front
panel, drawout cradle and inside the case assembly.
Upon receipt of a relay, be sure to check the Style Number against the requisition and the packing list to
ensure that they agree.
Style Number Example
The Style Number Identification Chart (Figure 1-1) defines the electrical characteristics and operational
features included in BE1-87T relays. For example, if the Style Number were G1E-A1Y-D1S0F, the device
would have the following:
BE1-87T Model Number (designates the relay as a Basler Electric, Class 100, Transformer Differential
Relay)
G Three-phase sensing with three inputs per phase
1 2.0 to 8.9 A Sensing Range at 60 Hz
E One unrestrained output contact and one restrained output contact
A1 No intentional delay in the outputs
Y 48/125 Vdc switchable
D Current operated targets
1 Percent I
OP
display and high-speed trip
S Push-to-Energize outputs
0 No auxiliary output
F Semi-flush mounting
Figure 1-1. Style Number Identification Chart