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Phase Failure Relays

F3 VSR4

3-Phase 3-Wire or 3-Phase 4-Wire voltage monitoring & display,

Phase Failure, Unbalance,

Phase Sequence, under voltage, Over Voltage,

Auto / Manual Reset,

Adjustable unbalance trip setting,

Adjustable under/over voltage settings,

Adjustable trip delay,

RS232 / 485 communication port,

failsafe or non-failsafe adjustable Selectable

2 CO output relay, True RMS Values

Phase Failure, Unbalance,

Technical Data

F3 VSR4 - Electrical Connection Diagram 02

F3 VSR4 - Electrical Connection Diagram 01

System Supply

System 110/415 V AC + 20%, -30% (3 Ph-3 W or 3 Ph-4 W selectable)
Auxiliary Supply 24 VDC/90-270 V AC/DC, 50 Hz/ (60 Hz) ± 3%

Output Relay Contacts

Output Relay Contacts2 CO & RS 232 (optional)

Output Contact Rating

Output Contact Rating5 Amp, 240 VAC [RESISTIVE]

Monitoring ( Software Selectable)

Monitoring ( Software Selectable)Phase To Phase Voltages Or Phase To Neutral Voltage

Power On Delay

Power On Delay 3.5 ± 1.5 Sec.

Settings

SettingsBy Means Of Keyboard [4 Keys]

Setting Parameters & Trip Level

3 PH. 3 W (System Supply - 415 VAC PH - PH)

PARAMETER	SPECIFICATION	RESOLUTION	FACTORY SETTING
NOMINAL MONITORING VOLTAGE	380 / 415 / 440 VAC [Ph-Ph]	N.A.	415 VAC [Ph-Ph]
UNDER VOLTAGE	1 TO 80 V BELOW NOMINAL VOLTAGEÂ	1 V	60 V
OVER VOLTAGE	1 TO 60 V ABOVE NOMINAL VOLTAGE	1 V	50 V
UNBALANCE	1 TO 20 % OF AVERAGE MONITORING VOLTAGE	1%	10%
INDIVIDUAL TRIP DELAY FOR UV, OV, UB FAULTS	1 TO 59 SECOND OR	1 SEC.	3 SEC
INDIVIDUAL TRIP DELAY FOR UV, OV, UB FAULTS	1 - 5 MINUTE	1 MIN.	3 SEC
UV, OV, UB, RP PROTECTION BYPASS	YES / NO	N. A.	NO
RESET	AUTO / MANUAL	N.A.	MANUAL
PASSWORD	00 TO 99 [TWO DIGITS]	1	3
FACTORY SET	YES / NO	N. A.	NO

3 PH. 3 W (System Supply - 110 VAC PH - PH)

PARAMETER	SPECIFICATION	RESOLUTION	Factory Setting
NOMINAL MONITORING VOLTAGE	110 VAC [Ph-Ph]	N.A.	110 VAC [Ph-Ph]
UNDER VOLTAGE	1 TO 15 V BELOW NOMINAL VOLTAGEÂ	1 V	15 V
OVER VOLTAGE	1 TO 35 V ABOVE NOMINAL VOLTAGE	1 V	20 V
UNBALANCE	1 TO 20 % OF AVERAGE MONITORING VOLTAGE	1%	10%
INDIVIDUAL TRIP DELAY FOR UV, OV, UB FAULTS	1 TO 59 SECOND OR	1 SEC.	3 SEC
	1-5 MINUTE	1 MIN.
UV, OV, UB, RP PROTECTION BYPASS	YES / NO	N. A.	NO
RESET	AUTO / MANUAL	N.A.	MANUAL
PASSWORD	00 TO 99 [TWO DIGITS]	1	3
FACTORY SET	YES / NO	N. A.	NO

3 PH. 4 W (System Supply - 415 VAC PH - PH)

PARAMETER	SPECIFICATION	RESOLUTION	FACTORY SETTING
NOMINAL MONITORING VOLTAGE	220 / 230 / 240 / 250 VAC [Ph-N]	10 V	230 VAC [Ph-N]
UNDER VOLTAGE	1 TO 50 V BELOW NOMINAL VOLTAGEÂ	1 V	40 V
OVER VOLTAGE	1 TO 25 V ABOVE NOMINAL VOLTAGE	1 V	20 V
UNBALANCE	1 TO 20 % OF AVERAGE MONITORING VOLTAGE	1%	10%
INDIVIDUAL TRIP DELAY FOR UV, OV, UB FAULTS	1 TO 59 SECOND OR	1 SEC.	3 SEC
INDIVIDUAL TRIP DELAY FOR UV, OV, UB FAULTS	1 - 5 MINUTE	1 MIN.	3 SEC
UV, OV,UB, RP PROTECTION BYPASS	YES / NO	N. A.	NO
RESET	AUTO / MANUAL	N.A.	MANUAL
PASSWORD	00 TO 99 [TWO DIGITS]	1	3
FACTORY SET	YES / NO	N. A.	NO

3 PH. 4 W (System Supply - 110 VAC PH - PH)

PARAMETER	SPECIFICATION	RESOLUTION	Factory Setting
MONITORING VOLTAGE	63 VAC [Ph-N]	NA	63 VAC [Ph -N]
UNDER VOLTAGE	1 TO 15 V BELOW NOMINAL VOLTAGEÂ	1 V	15 V
OVER VOLTAGE	1 TO 25 V ABOVE NOMINAL VOLTAGE	1 V	20 V
UNBALANCE	1 TO 20 % OF AVERAGE MONITORING VOLTAGE	1%	10%
INDIVIDUAL TRIP DELAY FOR UV, OV, UB FAULTS	1 TO 59 SECOND OR	1 SEC.	3 SEC
INDIVIDUAL TRIP DELAY FOR UV, OV, UB FAULTS	1-5 MINUTE	1 MIN.	3 SEC
UV, OV, UB, RP PROTECTION BYPASS	YES / NO	N. A.	NO
RESET	AUTO / MANUAL	N.A.	MANUAL
PASSWORD	00 TO 99 [TWO DIGITS]	1	3
FACTORY SET	YES / NO	N. A.	NO

Test Facility

Test FacilitySimultaneous Press Of Esc & Up Keys.

Reverse Phasing Trip Delay

Reverse Phasing Trip Delay Instantaneous (Less Than 1 Sec.)

Setting Accuracy

Setting Accuracy± 2 % Of Set Parameter

Time Accuracy

Time Accuracy± 5 % Of Setting

Display

DisplayLcd [16 X 2 Char. Type With Backlit]

Display Voltage Resolution

Display Voltage Resolution 1 Volt

Display Accuracy

Display Accuracy± (1 % + 5 Digits) Of Nominal Voltage

Resetting

ResettingAuto / Manual [simultaneous Press Of Up & Down Keys]

Reset Gap For Auto Reset Facility

Uv Reset Gap3 % ± 1 % Of Trip Setting.
Ov Reset Gap3 % ± 1 % Of Trip Setting
Unbalance Reset Gap20 % ± 5 % Of Trip Setting

Led Indications

P. On (Green)Power On
Ov (Red)Over Voltage
Uv (Red)Under Voltage
Ub/sp (Red)Unbalance / Single Phasing / Reverse Phasing

Enclosure

Enclosure96 X 96 Type Enclosure

Dimensions

Overall [mm] 96 X 96 X 80 Mm [h X W X D]
Cutout [mm] 92 X 92 [+ 1/– 0] Mm

Mounting

MountingFlush Mounting

Operating Conditions

Temperature0° To 60° C
HumidityUp To 95% Rh

Weight [gms.]

Weight [gms.]800 (Approx.)

Optional Feature

Optional FeatureRs232 Pc Interface With Minilec Exclusive Windows
Based Pc Side Software.

Phase Failure Relays

F3 VSR4

3-Phase 3-Wire or 3-Phase 4-Wire voltage monitoring & display,

Phase Failure, Unbalance,

Phase Sequence, under voltage, Over Voltage,

Auto / Manual Reset,

Adjustable unbalance trip setting,

Adjustable under/over voltage settings,

Adjustable trip delay,

RS232 / 485 communication port,

failsafe or non-failsafe adjustable Selectable

2 CO output relay, True RMS Values

Phase Failure, Unbalance,

Technical Data

System Supply

Output Relay Contacts

Output Contact Rating

Monitoring ( Software Selectable)

Power On Delay

Settings

Setting Parameters & Trip Level

3 PH. 3 W (System Supply - 415 VAC PH - PH)

3 PH. 3 W (System Supply - 110 VAC PH - PH)

3 PH. 4 W (System Supply - 415 VAC PH - PH)

3 PH. 4 W (System Supply - 110 VAC PH - PH)

Test Facility

Reverse Phasing Trip Delay

Setting Accuracy

Time Accuracy

Display

Display Voltage Resolution

Display Accuracy

Resetting

Reset Gap For Auto Reset Facility

Led Indications

Enclosure

Dimensions

Mounting

Operating Conditions

Weight [gms.]

Optional Feature

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Inverter

UPS

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DG Set Panel

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