DV3-01 Voltage Monitor Relay Adjustable Under Voltage and Phase Reversed Relay

Product Description

Product Description

 · monitoring of 3-phase mains:
  - voltage in 2 levels (undervoltage and overvoltage) in range 120-277V(3P+N) or 208-480 V (3P3W)
  - phase asymmetry (can be switched off)
  - phase sequence
  - phase failure
 · function of second relay (independent / parallel)
 · adjustable delay for short peaks for each level independently
 · M480: for circuits 3x 400 V (without neutral)
 · M277: for circuits 3x 400 / 230 V (with neutral)
 · galvanically separated supply voltage AC 400 V, AC 110 V, AC 230 V, AC/ DC 24 V
 · output contact: 2x changeover 10A / 250V AC1
 · 2-MODULE, DIN rail mounting

Model Explanation

Technical parameters

	DV3-01~11/M480	DV3-01~11/M277
Supply
Supply terminals	L1/L2/L3	L1/L2/L3/N
Supply voltage (AC 50 - 60 Hz)	208-220-230-240-380 400-415-440-460-480	120-127-132-138-220 230-240-254-265-277
Consumption max.	5 VA / 2.5W(AC 110 V, AC 230V, AC 400 V),  2VA/1.4W (AC/DC 24V)
Max. dissipated power (Un + terminals)	6.5 W (110 V, 230 V, 400 V), 5.5 W (24 V)
Supply voltage tolerance	- 15%;+10%
Measuring circuit
Voltage set	3x 400 V / 50 - 60 Hz	3x 400 V / 230 V / 50 - 60 Hz
Monitored terminals	L1, L2, L3	L1, L2, L3, N
Upper voltage level	240 - 480 V	138 - 276 V
Bottom voltage level	35-99% Umax
Max. permanent overload	3x 480 V
Hysteresis	2 % of set value
Asymmetry	5 - 20%
Peak overload < 1 ms	600 V < 1 ms	350 V < 1 ms
Time delay t1	fixed, max 200 ms
Time delay t2	adjustable 0.1-10 s
Accuracy
Set. accuracy (mechanical)	5 %
Repeat accuracy	< 1 %
Temperature dependance	< 0. 1 % / °C (°F)
Limit values tolerance	5 %
Output
Number of contacts	1x changeover / SPDT
Rated current	10A / AC1
Switching capacity	2500 VA / AC1, 240W / DC
Inrush current	12 A / < 3 s
Switching voltage	250V AC1 / 24V DC
Mechanical life	3x10^7
Electrical life (AC1)	0.7x10^5
Other informatio
Operating temperature	- 30 °C to 70 °C
Storage temperature	- 45 °C to 85 °C
Electrical strength	4kV (supply - output)
Operating position	any
Mounting	DIN rai EN 60715
Protection degree	IP40 from front panel/IP20 terminals
Overvoltage category	III.
Pollution degree	2
Max. cable size (mm^2)	solid wire max. 1x 2.5 or 2 x 1.5 /  with sleeve max. 2x 1.5 (AWG 14 )
Dimensions	90x36x70mm
Weight	135g	130g
Standards	IEC60947-5-1 EN 60255-6, EN 61010-1
Packing Details	Box DIM: 520x225x175, QTY: 50Pcs, GW:7.6kg

 

Importance of functions code

Connection

Symbol

Functioning

Relay is designated to monitor 3-phase circuits. Type N230 controls voltage towards neutral wire, type A400 controls inter phase voltage. Relay can monitor voltage in two levels (overvoltage / undervoltage), phase asymetry, phase sequence and phase failure. Each faulty state is indicated by individual LED.

Time delays t1(fixed) - when changing from faulty to normal state or when de-energized and t2 when changing from normal to faulty state. These delays prevent incorrect conduct and oscillation of output device during short voltage peaks in the main or during gradual voltage decline into normal.
 

Voltage control
Set upper level Umax in range Us×(1+5%)-Us×(1+30%) and lower level Umin in range Us×(1-5%)-Us×(1-30%) Umax. In case any phase passes this range, after a delay which eliminated short voltage peaks, contact opens. Output contact again switches after returning back into monitored voltage range and exceeding ?xed hysteresis . In case of failure of two or three phases, the relay is deactivated immediately regardless of the set delay t2.
 

Phase sequence
Monitors correctness of phase sequence. In case of unwanted change output contact breaks. In case of energization of a device with incorrect phase sequence, contact stays opened.
 

Asymmetry
Rate of assymetry between individual phases is set in a range of 5-15 %. In case set asymmetry is exceeded, output relay breaks and LED indicating asymetry shines. Delays t1, t2 and hysteretic are applicable when returning to normal state.

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