Iskra Doo MFR 10 161-346VAC, Frequency Monitoring Relay
MFR 10 Series serves to monitor AC frequencies from 40 to 70Hz, and provides Relay alarm output with adjustable delay time 0.5 - 10s.
Features :
Galvanically separates monitored circuit
Wide range supply 161-346VAC
Maximum measurement voltage 346VAC
Output contact: 1x changeover/SPDT 8 A Clamp terminals 1-phase, 1-MODULE, DIN rail mounting
Applications :
Generators
Frequency Converters
Specification
Iskra Doo Part Number
MFR 10 161-346VAC
Voltage Range
161 - 346 VAC (40 - 70 Hz)
Operating Range
-15 %; +10 %
Measurement Range
40 - 70 Hz
Trip Adjustment
Potentiometer
Setting Accuracy
5 %
Burden
max. 1.5 VA
Repeatability
1 %
Temperature Drift
0.1%/°C
Peak Overload (10s)
N/A
Time delay T1
max. 500 ms
Time delay T2
adjustable 0.1-10 s
Output
Number of contacts
1x changeover/ SPDT (AgNi / Silver Alloy)
Rating
8 A / AC1
Breaking capacity
2500 VA / AC1, 240 W / DC
Inrush current
10 A
Switching voltage
250 V AC1 / 24 V DC
Min. breaking capacity DC
500 mW
Indication of state
red LED
Mechanical life
1 x 107
Electrical life (AC1)
1 x 105
Other information
Operating temperature
-20 ... +55 °C
Storage temperature
-30 ... +70 °C
Electrical strength
4 kV (supply - output)
Operating position
any
Mounting
DIN rail EN 60715
Protection degree
IP 40 from front panel / IP 10 terminals
Overvoltage cathegory
III.
Pollution degree
2
Max. cable size (mm )2
solid wire max. 2x2.5 or 1x4 ; with sleeve max. 1x2.5 or 2x1.5
Dimensions
90 x 17,6 x 64 mm
Weight
69 g
Standards
EN 60255-6, EN 61010-1
Datasheet
Product Datasheet
