EMD-FL-3V-230 - Monitoring relay

2885773

Monitoring relay for monitoring 3-phase voltages of 160…300 V AC, undervoltage, window, phase sequence, phase failure, asymmetry, wide range power supply unit, 2 changeover contacts

Increasingly higher demands are being placed on safety and system availability - across all sectors. Processes are becoming more and more complex, not only in mechanical engineering and the chemical industry, but also in plant and automation technology. Demands on power engineering are also increasing constantly.
Error-free and therefore cost-effective operation can only be achieved through continuous monitoring of important network and system parameters. Electronic monitoring relays in the EMD series are available for a wide range of monitoring tasks to avoid the consequences of errors or to keep them within limits.
The operating states are indicated using colored LEDs, errors that may occur can be sent to a control system via a floating contact or can shut down a part of the system. Some device versions are equipped with startup and response delays in order to briefly tolerate measured values outside the set monitoring range.

Utilization restriction
EMC note EMC: class A product, see manufacturer's declaration in the download area

Product type Voltage monitoring relay
Operating mode 100% operating factor
Mechanical service life approx. 2x 107 cycles
Insulation characteristics
Insulation Basic insulation
Insulation characteristics
Insulation Basic insulation
Overvoltage category III
Pollution degree 2

Service life electrical 2x 105 cycles at ohmic load, 1000 VA
Mains type 3-phase
Rated insulation voltage 300 V
Rated surge voltage 4 kV
Supply
Supply voltage range 24 V AC ... 240 V AC -15 % ... +10 %
24 V DC ... 240 V DC -20 % ... +25 %
Nominal power consumption 4.5 VA (1.5 W)

Input name Measuring input
Measured value AC sine (48 Hz ... 63 Hz)
Protection ≤ 20 A
Nominal input voltage UN 3 N ~ 230/132 V
Maximum input voltage 345 V (3 N ~ 345/199 V)
Input resistance of voltage input 470 kΩ
Frequency range 48 Hz ... 400 Hz
Maximum temperature coefficient < 0.1 %/K
Setting range for response delay 0.1 s ... 10 s
Min. setting range -30 % ... 20 % (From UN)
Max. setting range -20 % ... 30 % (From UN)
Min setting range of the voltage threshold value 161 V AC ... 276 V AC
Max. setting range of the voltage threshold value 184 V AC ... 299 V AC
Function Undervoltage
Window
Asymmetry
Phase sequence
Phase failure
Basic accuracy ± 5 % (of scale end value)
Setting accuracy ≤ 5 % (of scale end value)
Repeat accuracy ≤ 2 %
Asymmetry 5 % ... 25% / OFF
Recovery time 500 ms

Switching
Contact switching type 2 floating changeover contacts
Maximum switching voltage 250 V AC (in acc. with IEC 60664-1)
Interrupting rating (ohmic load) max. 750 VA (3 A/250 V AC, module aligned, ≤ 5 mm spacing)
1250 VA (5 A/250 V AC, module not aligned, ≥ 5 mm spacing)
Output fuse 5 A (fast-blow)

Connection method Screw connection
Stripping length 8 mm
Conductor cross section rigid 0.5 mm² ... 2.5 mm²
Conductor cross section flexible 0.25 mm² ... 2.5 mm²
Conductor cross section AWG 20 ... 14

Width 22.5 mm
Height 90 mm
Depth 113 mm

Color green (RAL 6021)
Housing insulation material Polyamide PA, self-extinguishing