SATEC BFM136 - Manual (Page 60)

‎Appendix A Technical Specifications
60 BFM136 Branch Feeder Monitor
Appendix A Technical Specifications
Environmental Conditions
Indoor use only
BFM is intended for operation in environment where normally only non-
conductive pollution occurs as defined for pollution degree 2 (UL61010,
3.6.6.2)
Operating Temperature: -40°C to 70°C (-40°F to 158°F)
Storage Temperature: -40°C to 80°C (-40°F to 176°F)
Humidity: 0 to 95% non-condensing
Altitude: 2,000m max
Input Ratings
Parameter Value
Fundamental frequency 50/60 Hz
AC Voltage 4 wires, 3 phases+ neutral
Reference Voltage (115) 88-136 VAC or
(230/400 – 277/480) 176-320 VAC
Maximum Line to Neutral voltage 320 V
Maximum Line to Line voltage 544V
Burden per phase <1.5W
AC Voltage for Measurement and
Power supply
Maximal apparent power consumed
from power line < 10VA
Isolation 2.5 kV RMS, 60Hz, 1 min
Leakage current < 0.005A per circuit
Impulse 1.2/50μS 6 kV
Fuse rating 6A, 600V
AC Current 36 current circuits
Maximum measurable current Imax
(In=50A)
400 A
Test current 15 A
Maximum overcurrent for 0.5 cycle of
fundamental frequency
3000 A
Burden per phase < 1 VA
Isolation 4 kV RMS, 60Hz, 1 min
LCD Display
No. Of Digits 2 Rows, 16 digits in each
Operating Temperature: -20°C to 70°C (-4°F to 158°F)
Non-volatile Memory storage life 20 years
RTC storage upon loss of power 24 Hours minimum
1 Week typical
Push buttons 4
Voltage inputs terminal 10 AWG Max.
Communication Ports
COM2 (Optional modules)
Serial EIA RS-232 optically isolated port
Connector Type: DB9 female.
Baud Rate: up to 115.2 kbps.
Supported Protocols: Modbus RTU/ASCII.
RS-422/RS-485 optically isolated port
Connector Type: removable, captured-wire, 5 terminals.
Wire Size: up to 12 AWG (up to 2.5 mm
2 ).
Baud Rate: up to 115.2 kbps.