Monitoring relay - EMD-SL-PH-690

Monitoring relay for monitoring the phase sequence, phase failure and asymmetry of 3-phase voltages at 208 V AC ... 690 V AC, 2 changeover contacts, with screw connection

Product Details

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 Phase monitoring relay
Operating mode 100% operating factor
Mechanical service life 20x 106 cycles
Insulation characteristics
Overvoltage category III
Pollution degree 3

Service life electrical 2x 105 cycles
Mains type 3-phase
Rated insulation voltage 250 V (Output circuit)
Rated surge voltage 6 kV
Supply voltage ±15 % (= measuring voltage)
Nominal power consumption 2 VA (1.2 W)

Input name Measuring input
Measured value AC sine (48 Hz ... 63 Hz)
Nominal input voltage UN 690 V (3~ 208 V ... 690 V)
Input voltage range 177 V ... 794 V (3~)
Maximum input voltage 3~ 794 V
Frequency range 48 Hz ... 63 Hz
Setting range for response delay 0.1 s ... 10 s
Min setting range of the voltage threshold value 177 V AC
Max. setting range of the voltage threshold value 794 V AC
Function Undervoltage
Phase sequence
Phase failure
Basic accuracy ≤ 3 % (of scale end value)
Setting accuracy ≤ 5 % (of scale end value)
Repeat accuracy ≤ 2 %
Asymmetry 25 %
Recovery time > 500 ms

Contact type 2 floating changeover contacts
Maximum switching voltage 400 V AC
Interrupting rating (ohmic load) max. 1250 VA (5 A/250 V AC at +55 °C)
150 VA (5 A/30 V DC at +55°C)
75 VA (2.5 A/30 V DC at +70°C)
Output fuse 5 A (fast-blow)

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

Status display Yellow LED
Operating voltage display Green LED
Indication Red LED

Width 22.5 mm
Height 90 mm
Depth 113 mm

Housing insulation material Polyamide PA, self-extinguishing

Ambient conditions
Degree of protection IP40 (Housing)
IP20 (Connection terminal blocks)
Ambient temperature (operation) -25 °C ... 70 °C (C300)
-25 °C ... 55 °C (B300)
Ambient temperature (storage/transport) -25 °C ... 70 °C
Climatic class 3K3 (in acc. with EN 60721)
Permissible humidity (operation) 15 % ... 85 %

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

Low Voltage Directive Conformance with Low Voltage Directive
Electromagnetic compatibility Conformance with EMC directive
Noise emission EN 61326-1
Noise immunity EN 61326-1

Standards/regulations IEC 60664-1

Mounting type DIN rail mounting
Assembly instructions on standard DIN rail NS 35 in accordance with EN 60715
Mounting position any

Item number 2905597
Packing unit 1 pc
Minimum order quantity 1 pc
Sales Key *****
Product Key CK4111
Catalog Page Page 253 (C-5-2019)
GTIN 4046356967198
Weight per Piece (including packing) 154.3 g
Weight per Piece (excluding packing) 154.3 g
Customs tariff number 85364900
Country of origin AT


ECLASS-9.0 27371803
ECLASS-10.0.1 27371803
ECLASS-11.0 27371803


ETIM 8.0 EC001441


UNSPSC 21.0 39121100


Approval ID: TR_TS_D_00573_c


Approval ID: RU*C-DE.*08.B.00010

UL Listed

Approval ID: FILE E 172140

cUL Listed

Approval ID: FILE E 172140

cULus Listed

China RoHS Environmentally friendly use period: unlimited = EFUP-e
No hazardous substances above threshold values