Applications - Interconnection / Mains Decoupling

Decentralized power resources should remain connected to the grid in the event of faults in order to maintain a stable power supply. Our protection devices have been developed in accordance with international grid codes to ensure the highest possible availability.

Product Finder

Our product finder makes it easy to select the right products:

Simply select the products you need by filtering the specification to match what you are looking for. Then swipe through the results.
A click on the product will then take you to the product page.

(swipe left to scroll)

Only ANSI Show all	XUFD – Grid and System Protection Relay Professional Line	MCDGV4 Generator Protection Device HighPROTEC	MCDTV4 Enhanced Transformer Differential Protection HighPROTEC	MRA4 Directional Feeder Protection HighPROTEC	MRN3-1 Mains Decoupling Relay HighTECH Line	XN2-2 Mains Decoupling Relay Professional Line	XRW1-4 Mains Decoupling Relay Professional Line	MRU3-2 Voltage Relay HighTECH Line	XRN2-2 Mains Decoupling Relay Professional Line	MRU4 Voltage Protection HighPROTEC	MRN3-2 Mains Decoupling Relay HighTECH Line	XRN2-1 Mains Decoupling Relay Professional Line	MRF3 Frequency Relay HighTECH Line	XU2-AC Voltage Relay Professional Line	XN2-1 Mains Decoupling Relay Professional Line	XF2 Frequency Relay Professional Line	XUF2 Voltage and Frequency Relay Professional Line	MRN3-3 Mains Decoupling Relay HighTECH Line	MCA4 Directional Feeder Protection HighPROTEC	MRU3-1 Voltage Relay HighTECH Line
Supervision
Current transformer supervision (60L)	-	⦿	⦿	⦿	-	-	-	-	-	-	-	-	-	-	-	-	-	-	⦿	-
Voltage transformer supervision (60FL)	-	⦿	⦿	⦿	-	-	-	-	-	⦿	-	-	-	-	-	-	-	-	⦿	-
Trip circuit resp. control circuit supervision (74TC)	-	⦿	⦿	⦿	-	-	-	-	-	⦿	-	-	-	-	-	-	-	-	⦿	-
Protection
Vector surge/ mains decoupling (78V)	⦿	⦿	⦿	⦿	⦿	-	-	-	-	⦿	-	⦿	-	-	⦿	-	-	⦿	⦿	-
Frequency gradient (81R)	⦿	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Voltage protection (27/59)	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	-	⦿	⦿	-	⦿	⦿	⦿	⦿
Frequency protection (810/U)	⦿	⦿	⦿	⦿	⦿	⦿	⦿	-	⦿	⦿	⦿	⦿	⦿	-	⦿	⦿	⦿	⦿	⦿	-
Q->&V<	-	⦿	⦿	⦿	-	-	-	-	-	-	-	-	-	-	-	-	-	-	⦿	-
Out of Step Tripping (78)	-	⦿	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Phase balance (47)	-	⦿	⦿	⦿	-	-	-	⦿	-	⦿	-	-	-	-	-	-	-	-	⦿	-
Inrush stabilisation [2nd harmonic]	-	⦿	⦿	⦿	-	-	-	-	-	-	-	-	-	-	-	-	-	-	⦿	-
Sensitive EF isolated/compensated (50Ns/51Ns)	-	(Option)	(Option)	(Option)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	(Option)	-
Frequency gradient (81)	-	⦿	⦿	⦿	-	⦿	⦿	-	⦿	⦿	⦿	-	⦿	-	-	-	-	⦿	⦿	-
Negative sequence protection (46)	-	⦿	⦿	⦿	-	-	-	-	-	-	-	-	-	-	-	-	-	-	⦿	-
Power direction (32/37)	-	⦿	⦿	⦿	-	-	-	-	-	-	-	-	-	-	-	-	-	-	⦿	-
Thermal replica (49)	-	⦿	⦿	⦿	-	-	-	-	-	-	-	-	-	-	-	-	-	-	⦿	-
Field failure protection (40)	-	⦿	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Power Swing Blocking (68)	-	⦿	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Time overcurrent protection (50/51)	-	⦿	⦿	⦿	-	-	-	-	-	-	-	-	-	-	-	-	-	-	⦿	-
Residual voltage (59N)	-	⦿	⦿	⦿	-	-	-	⦿	-	⦿	-	-	-	-	-	-	-	-	⦿	⦿
Differential protection: Generator (87G)	-	⦿	⦿	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Differential protection: Restricted earth fault (64REF)	-	⦿	⦿	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Differential protection: Transformer (87T)	-	⦿	⦿	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Earth fault protection (50N/51N)	-	⦿	⦿	⦿	-	-	-	-	-	-	-	-	-	-	-	-	-	-	⦿	-
Resistance earthed / solidly earthed (50N/51N)	-	⦿	⦿	⦿	-	-	-	-	-	-	-	-	-	-	-	-	-	-	⦿	-
Voltage Restraint Overcurrent Protection (51V)	-	⦿	⦿	⦿	-	-	-	-	-	-	-	-	-	-	-	-	-	-	⦿	-
Earth fault directional feature (67N)	-	⦿	⦿	⦿	-	-	-	-	-	-	-	-	-	-	-	-	-	-	⦿	-
Circuit breaker failure protection (50BF)	-	⦿	⦿	⦿	-	-	-	-	-	⦿	-	-	-	-	-	-	-	-	⦿	-
Directional time overcurrent protection (67)	-	⦿	⦿	⦿	-	-	-	-	-	-	-	-	-	-	-	-	-	-	⦿	-
Auto reclosing AR (79)	-	-	-	⦿	-	-	-	-	-	-	-	-	-	-	-	-	-	-	⦿	-
Inputs Outputs
Output Relays	3	10 ... 15 (Option)	10	6 ... 19 (Option)	4	2	4	4	4	5	4	4	4	2	2	2	2	4	6 ... 19 (Option)	4
Binary inputs	5	8 ... 24 (Option)	8 ... 16 (Option)	8 ... 24 (Option)	2	-	2	2	2	8	2	2	2	-	-	-	-	2	8 ... 24 (Option)	2
Voltage transformer inputs	3	4	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Watchdog relay	-	1	1	1	1	-	1	1	1	1	1	1	1	-	-	-	-	1	1	1
Analog outputs	-	0 ... 2 (Option)	0 ... 2 (Option)	0 ... 2 (Option)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	0 ... 2 (Option)	-
Analog inputs	-	0 ... 2 (Option)	0 ... 2 (Option)	0 ... 2 (Option)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	0 ... 2 (Option)	-
Current transformer inputs	-	8	8	4	-	-	-	-	-	-	-	-	-	-	-	-	-	-	4	-
Communication
IRIG-B00X	-	⦿	⦿	⦿	-	-	-	-	-	⦿	-	-	-	-	-	-	-	-	⦿	-
DNP3 RTU	-	(Option)	(Option)	(Option)	-	-	-	-	-	(Option)	-	-	-	-	-	-	-	-	(Option)	-
DNP3 TCP	-	(Option)	(Option)	(Option)	-	-	-	-	-	(Option)	-	-	-	-	-	-	-	-	(Option)	-
IEC 60870-5-103	-	(Option)	(Option)	(Option)	-	-	-	-	-	(Option)	-	-	-	-	-	-	-	-	(Option)	-
IEC 60870-5-104	-	(Option)	(Option)	(Option)	-	-	-	-	-	(Option)	-	-	-	-	-	-	-	-	(Option)	-
Modbus [TCP]	-	(Option)	(Option)	(Option)	-	-	-	-	-	(Option)	-	-	-	-	-	-	-	-	(Option)	-
Profibus DP	-	(Option)	(Option)	(Option)	-	-	-	-	-	(Option)	-	-	-	-	-	-	-	-	(Option)	-
IEC 61850	-	(Option)	(Option)	(Option)	-	-	-	-	-	(Option)	-	-	-	-	-	-	-	-	(Option)	-
Modbus RTU	-	(Option)	(Option)	(Option)	(Option)	-	-	(Option)	-	(Option)	(Option)	-	-	-	-	-	-	-	(Option)	(Option)
RS485 Open Data Protocol	-	-	-	-	(Option)	-	-	(Option)	-	-	(Option)	-	-	-	-	-	-	-	-	(Option)
Mounting Type
Housing suitable for door mounting	-	⦿	⦿	⦿	(Option)	-	-	(Option)	-	⦿	⦿	-	(Option)	-	-	-	-	⦿	⦿	(Option)
Housing suitable for 19” rack mounting	-	(Option)	(Option)	(Option)	(Option)	-	-	(Option)	-	(Option)	-	-	(Option)	-	-	-	-	-	(Option)	(Option)
Housing suitable for mounting plate	-	-	-	-	⦿	-	-	⦿	-	-	⦿	-	⦿	-	-	-	-	⦿	-	⦿
Housing is withdrawable	-	-	-	-	⦿	-	-	⦿	-	-	⦿	-	⦿	-	-	-	-	⦿	-	⦿
Housing suitable for DIN rail mounting	-	-	-	-	-	⦿	⦿	-	⦿	-	-	⦿	-	⦿	⦿	⦿	⦿	-	-	-
Additional Features
Parameter sets	-	4	4	4	2	-	1	2	1	4	2	1	2	-	-	-	-	2	4	2
Event recorder	-	⦿	⦿	⦿	-	-	-	-	-	⦿	-	-	-	-	-	-	-	-	⦿	-
Fault recorder [none volatile]	-	⦿	⦿	⦿	⦿	-	⦿	⦿	⦿	⦿	⦿	⦿	⦿	-	-	-	-	⦿	⦿	⦿
Disturbance recorder	-	⦿	⦿	⦿	⦿	-	-	⦿	-	⦿	⦿	-	⦿	-	-	-	-	⦿	⦿	⦿
Programmable Logic	-	⦿	⦿	⦿	-	-	-	-	-	⦿	-	-	-	-	-	-	-	-	⦿	-
Conformal Coating [for installations in harsh environment]	-	(Option)	(Option)	(Option)	-	-	-	-	-	(Option)	-	-	-	-	-	-	-	-	(Option)	-
Control and supervision of a circuit breaker	-	⦿	⦿	⦿	-	-	-	-	-	⦿	-	-	-	-	-	-	-	-	⦿	-
Control and detection of switchgears	-	6	6	1	-	-	-	-	-	1	-	-	-	-	-	-	-	-	6	-