EMD-SL-C-UC-10 - Monitoring relay

2867937

Monitoring relay for monitoring 1-phase currents of 0…10 A AC/DC, undercurrent, supply voltage can be selected via power module, 1 changeover contact

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.

Product type Current 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 1-phase
Rated insulation voltage 300 V
Rated surge voltage 4 kV
Supply
Supply voltage range 24 V AC ... 230 V AC (see Power modules)
24 V DC (see Power modules)
Nominal power consumption 2 VA (1.5 W)

Input name Measuring input
Measured value DC, AC sine
Input current range 0 mA ... 100 mA (Connection terminals: I1 and GND)
0 A ... 1 A (Connection terminals: I2 and GND)
0 A ... 10 A (Connection terminals: I3 and GND)
Overload capacity 800 mA (at IN = 100 mA)
3 A (at IN = 1 A)
12 A (at IN = 10 A)
Input resistance current input 470 mΩ (at IN = 100 mA)
47 mΩ (at IN = 1 A)
5 mΩ (at IN = 10 A)
Frequency range 48 Hz ... 63 Hz
Maximum temperature coefficient < 0.1 %/K
Setting range for response delay 0.2 s ... 10 s
Min. setting range 5 % ... 95 % (from IN)
Max. setting range 10 % ... 100 % (from IN)
Function Undercurrent
Basic accuracy ± 5 % (of scale end value)
Setting accuracy ≤ 5 % (of scale end value)
Repeat accuracy ≤ 2 %
Recovery time 500 ms

Switching
Contact switching type 1 floating changeover contact
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

Ambient conditions
Degree of protection (Housing) IP40 (Housing)
Degree of protection (Connection terminal blocks) IP20 (Connection terminal blocks)
Ambient temperature (operation) -25 °C ... 55 °C
-25 °C ... 40 °C (corresponds to UL 508)
Ambient temperature (storage/transport) -25 °C ... 70 °C
Climatic class 3K3 (in acc. with EN 60721)
Permissible humidity (operation) 15 % ... 85 %

CE
Certificate CE-compliant
UL, USA/Canada
Identification UL/C-UL Listed UL 508

Low Voltage Directive Conformance with Low Voltage Directive
Noise immunity EN 61000-6-2
Electromagnetic compatibility Conformance with EMC directive
Noise emission EN 61000-6-3