MFR 10 161-346VAC, Frequency Monitoring Relay
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MFR 10 161-346VAC, Frequency Monitoring Relay

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Iskra Systemi MFR 10 Series Voltage 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

Iskra Systemi MFR 10 Series Voltage 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

Iskra Systemi 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)

Current 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