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1. General Information
VFR Voltage Frequency Relay
1.3
Instruction Manual: VFR GBM 06/10/2021
MECHANICAL
Back connection, section 2.5 mm² or 14 AWG
Frame: Noryl auto-extinguish
IP40 Front (up to IP54 front, on request)
Dimension: 96 x 96 x 146 mm.
Front panel cutout: 91
-0,5
x 91
-0,5
mm
Weight: 700 gr.
STANDARDS
Low voltage directive: IEC 60255-27, IEC 60255-5
EMC directive: IEC 60255-26
FIRMWARE UPGRADE
via RS-485 Serial Port
*Depending on VFR version
+Depending on Voltage connection type
1.10 ORDER CODE
Metering
Protections (ANSI)
Events
Communication Port
Model
Phase
&
Line
Voltage
Phase
Sequence
Voltage
Unbalance
Voltage
THD
Voltage
Harmonics
Freq.
df/dt
27
59
47
81u
81o
81df/dt
Modbus
RTU
& Bluetooth ready
VFR-1001
o
o
o
o
o
o
o
o
o
VFR-1002
o
o
o
o
o
o
o
o
o
o
o
o
VFR-1003
o
o
o
o
o
o
o
o
o
o
o
o
o
o