Basler Electric BE1-87B - Manual (Page 14)

Style Number Example
The style number identification chart defines the electrical characteristics and operation features included
in the BE1-87B relay. For example, if the style number were BE1-87B S5AA1YN0N0F, the device would
have the following:
BE1-87B
S.......... Single-phase current sensing
5 .......... 5 ampere current sensing input range
A ......... Front case cover with CT test button access
A1 ....... Instantaneous timing
Y.......... 48/125 Vac/Vdc power supply
N ......... No Option
N ......... No Option
N ......... No Option
0 .......... No Option
F .......... Semi-flush case mounting
Specifications
Timing
A maximum of seven milliseconds at 1.5 times the pickup setting.
A maximum of 5.5 milliseconds above six times the pickup setting.
Figure 1-2 illustrates typical response times.
Figure 1-2. Typical Pickup Current Response Time without a Trip Delay
Power Supply
Power for the internal circuitry may be obtained from either an ac or a dc external power source as
indicated in Table 1-1.
Table 1-1. BE1-87B Power Supply Specifications
Type
Nominal Input
Voltage
Input Voltage
Range
Burden at Nominal
(Maximum)
Y 48/125 Vdc
110Vac
24 to 150 Vdc
90 to 132 Vac 7.5 W
15.0 VA
Z 125/250 Vdc
110/230Vac
60 to 250 Vdc
90 to 230 Vac 7.5 W
20.0 VA
1-2 BE1-87B Application 9282300990 Rev P