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多功能三相电压监控继电器（工业型）订购编号:MR-GU3M2P-TR2

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附加信息，更具体要求

Monitoring relay MR-GU3M2P-TR2

Voltage monitoring in 3-phase mains • Multifunctions monitoring relays

• Monitoring of phase sequence, phase failure and asymmetry

• Timing adjustment for tripping delay

• Connection of neutral wire optional, detection of loss of neutral wire

• Relay supply via the supply transformer of TR2 type

Meassuring circuit data
Functions	UNDER, UNDER+SEQ, WIN, WIN+SEQ
	monitoring of phase sequence, phase failure and asymmetry
	timing adjustment for tripping delay
Time intervals (timing adjustment)	tripping delay (0,1...10 s)
LED indicator	green LED, red LED
Meassuring circuit
• terminals	(N)-L1-L2-L3
• measuring variable	AC sinus, 48...63 Hz
• measuring input	3(N)~ 400/230 V
• overload capacity	3(N)~ 600/346 V
• swiching threshold Us	max:- 0,2 < Un < 0,3 min.: -0,3 < Un < 0,2
• asymmetry	5...25%
Input circuit
Supply voltage U	12 … 400 V AC; terminals A1-A2
Rated power consumption	2,0 VA / 1,5 W
Rated frequency	as per the specification of TR2 supply transformer
Output circuit
Number and type of contacts	2 C/O - changeover
Rated load AC1	5 A / 250 V AC
Max. breaking capacity AC1	1 250 VA
Insulation
Rated surge voltage	4 000 V AC
Overvoltage category	III PN-EN 60664-0
Insulation pollution degree	3 PN-EN 60664-1