Automation Controls Catalog Phase Monitoring Relays

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CONTROLS CONTROLS

Products and specifications subject to change without notice.

Order/Technical Support – Tel: (800) 677-5311 / FAX: (800) 677-3865 / www.crouzet-usa.com

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2

WRL SERIES

PHASE CONTROL RELAY

UL listed CSA recognized

•Monitors

Phase Sequence

Loss of Any Phase even if Induced Voltage

reaches 95% of Nominal Voltage

•Under Voltage Detection

•Trip Delay Timer Built-in

•LED Relay Status Indicator

SPECIFICATIONS:

Input Power . . . . . . . . . . . . . . . . . . . 3 x 230 (50/60 Hz)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 x 380 (50/60 Hz)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 x 480 (50/60 Hz)

Maximum voltage . . . . . . . . . . . . . . 3 x 280 VAC

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 x 420 VAC

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 x 530 VAC

Minimum voltage . . . . . . . . . . . . . . 3 x 160 VAC

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 x 260 VAC

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 x 340 VAC

Threshold adjustment range . . . . . 160 to 230 VAC

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 260 to 380 VAC

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 340 to 480 VAC

Max power consumption . . . . . . . . 2 VA

Dial accuracy . . . . . . . . . . . . . . . . . ±10%

Temperature De-rating . . . . . . . . . . ±0.04%/°C

Dead Band . . . . . . . . . . . . . . . . . . . 4% of 480 VAC

Response Time . . . . . . . . . . . . . . . . 300 ms on Make

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 sec on Break

Output

SPDT Version (WRL) Series) . . . . . 10 Amp 250 VAC

Max. power consumption . . . . . . . . 2000 VA

Max. voltage . . . . . . . . . . . . . . . . . . 250 VAC

Electrical life . . . . . . . . . . . . . . . . . . 2 x 107operations

Mechanical life . . . . . . . . . . . . . . . . 1 x 106operations

Operating temperature . . . . . . . . . . -10°C to +60°C

Weight . . . . . . . . . . . . . . . . . . . . . . . 3.5 oz. (100g)

MOUNTING

L= 11 pin plug-in

P= 8 pin plug-in

SERIES

WRL = SPDT Version

D

MOUNTING

WRL

SERIES

230A

INPUT POWER

INPUT POWER

230A = 3 x 230 VAC

380A = 3 x 380 VAC

480A = 3 x 480 VAC

WIRING DIAGRAM:

ORDERING INFORMATION:

MODE OF OPERATION:

The WRL Phase Control Relay monitors the sequence loss or reversal

of three phase power supplies. The output relay is energized when the

phase sequence is correct and the phase voltage is above the voltage

threshold set by the front knob. The output relay will de-energize after 2

seconds (built-in timer) when the phase voltage drops under the voltage

threshold or when phase sequence is lost. The WRL Series is available

in three voltage ranges: 230 VAC, 380 VAC and 480 VAC.

CONTROLS CONTROLS

Products and specifications subject to change without notice.

Order/Technical Support – Tel: (800) 677-5311 / FAX: (800) 677-3865 / www.crouzet-usa.com

2/82

SPECIFICATIONS:

Input Power Directly . . . . . . . . 3 x 220 60 Hz

from controlled voltage ±15% 3 x 380 60 Hz

3 x 440 60 Hz

Power consumption . . . . . . . . . 3 VA at 220 V

Output . . . . . . . . . . . . . . . . . . . SPDT relay

Contact material . . . . . . . . . . . AgCdO

Maximum Loading . . . . . . . . . 10 AC resistive 8A DC inductive

Maximum switching voltage . . 250 VAC 250 VDC

Relay max. power rating . . . . . 220 VA 80 W

Mechanical life of relay . . . . . . 30 x 106operations

Electrical life of relay . . . . . . . . 2 x 105operations at 2200VA resistive load

Operating temperature . . . . . . +14°F to +140°F -10°C to +60°C

Weight . . . . . . . . . . . . . . . . . . . 7 oz. (200g)

Note: The alarm threshold adjustment is 5% to 15% of asymmetry between

the phases. The initial response time is .1 seconds at 5% asymmetry and 1

second at 15% after input power is applied. When a phase loss or failure

occurs, the “off delay” response time is 100 ms.

MOUNTING

D= DIN-rail mounting

L= 11 pin plug-in

P= 8 pin plug-in

SERIES

WRA

L

MOUNTING

WRA

SERIES

380 A

INPUT POWER

INPUT POWER

220A = 3 x 220 VAC

380A = 3 x 380 VAC

440A = 3 x 415/440 VAC

WIRING DIAGRAM:

ORDERING INFORMATION:

MODE OF OPERATION:

The WRL Phase Control Relay monitors the sequence loss or reversal

of three phase power supplies. The output relay is energized when

the phase sequence is correct and is de-energize when the phase

sequence is wrong or one phase is lost. It monitors the symmetry

of 3 voltages and a loss of phase even when the voltage is reinjected

through a machine. The rate of asymmetry is controlled between 5%

and 15% by a top mounted potentiometer.

M

NR

11

12 14

d1 U V W

RST

R = L1

S = L2

T = L3

STOP

START

ST

D1

R S T R S T R S

T

R

R T S

DWRA

LWRA

PWRA

11

1

1

12

4

2

14

3

8

R

5

3

S

6

4

T

7

5

WRA SERIES

PHASE CONTROL RELAY

UL listed CSA recognized (220 VAC Version Only)

•Monitors

Phase Sequence

Loss of Any Phase even if Induced Voltage

reaches 95% of Nominal Voltage

•LED Relay Status Indicator

•SPDT 10 Amp Relay Output

CONTROLS CONTROLS

Products and specifications subject to change without notice.

Order/Technical Support – Tel: (800) 677-5311 / FAX: (800) 677-3865 / www.crouzet-usa.com

2/83

2

WRA 2 SERIES

PHASE CONTROL RELAY

UL listed CSA recognized (220 VAC Version Only)

•Monitors

Phase Sequence

Loss of Any Phase even if Induced Voltage

reaches 95% of Nominal Voltage

•LED Relay Status Indicator

•DPDT 5 Amp Relay Output

SPECIFICATIONS:

Power consumption . . . . . . . . . 3 VA at 220 V

Output . . . . . . . . . . . . . . . . . . . DPDT relay

Contact material . . . . . . . . . . . AgCdO

Maximum Loading . . . . . . . . . 5 A AC resistive 1 A DC inductive

Maximum switching voltage . . 250 VAC 250 VDC

Relay max. power rating . . . . . 1250 VA 30 W

Mechanical life of relay . . . . . . 30 x 106operations

Electrical life of relay . . . . . . . . 2 x 105operations at 2200 VA resistive load

Operating temperature . . . . . . +14°F to +140°F -10°C to +60°C

Weight . . . . . . . . . . . . . . . . . . . 7 oz. (200g)

Note: The alarm threshold adjustment is 5% to 15% of asymmetry between

the phases. The initial response time is .1 seconds at 5% asymmetry and

1 second at 15% after input power is applied. When a phase loss or failure

occurs, the “off delay” response time is 100 ms.

MOUNTING

D= DIN-rail mounting or panel mounting

L= 11 pin plug-in

SERIES

WRA 2

L

MOUNTING

WRA 2

SERIES

380 A

INPUT POWER

INPUT POWER

220A = 3 x 220 VAC

380A = 3 x 380 VAC

440A = 3 x 415/440 VAC

WIRING DIAGRAM:

ORDERING INFORMATION:

MODE OF OPERATION:

The WRA 2 Phase Control Relay monitors the sequence loss or

reversal of three phase power supplies. The output relay is energized

when the phase sequence is correct and is de-energize when the phase

sequence is wrong or one phase is lost. It monitors the symmetry of

3 voltages and a loss of phase even when the voltage is reinjected

through a machine. The rate of asymmetry is controlled between 5%

and 15% by a top mounted potentiometer.

M

NR

11 21

12 14 22 24

d1 U V W

RST

R = L1

S = L2

T = L3

STOP

START

ST

D1

R S T R S T R S

T

R

R T S

DWRA 2

LWRA 2

11

1

12

4

14

3

R

5

S

6

T

7

21

11

22

8

24

9

CONTROLS CONTROLS

Products and specifications subject to change without notice.

Order/Technical Support – Tel: (800) 677-5311 / FAX: (800) 677-3865 / www.crouzet-usa.com

2/84

WRS SERIES

PHASE CONTROL RELAY

UL listed CSA recognized

•Monitors

Phase Sequence

Loss of Any Phase

•LED Indicator

•10 Amp SPDT Output

•Low Cost

SPECIFICATIONS:

Input Power Directly . . . . . . . . 3 x 220 60 Hz

from controlled voltage ±15% 3 x 380 60 Hz

3 x 440 60 Hz

Power consumption . . . . . . . . . 3 VA at 220 V

Output . . . . . . . . . . . . . . . . . . . SPDT relay

Contact material . . . . . . . . . . . AgCdO

Maximum Loading . . . . . . . . . 10 AC resistive 1 A SC inductive

Maximum switching voltage . . 250 VAC 250 VDC

Relay max. power rating . . . . . 2200 VA 30 W

Mechanical life of relay . . . . . . 30 x 106operations

Electrical life of relay . . . . . . . . 2 x 105operations at 2200 VA resistive load

Operating temperature . . . . . . +14°F to +140°F -10°C to +60°C

Weight . . . . . . . . . . . . . . . . . . . 7 oz. (200g)

MOUNTING

D= DIN-rail mounting or panel mounting

L= 11 pin plug-in

P= 8 pin plug-in

SERIES

WRS

L

MOUNTING

WRS

SERIES

380

INPUT POWER

INPUT POWER

220A = 3 x 220 VAC

380A = 3 x 380 VAC

440A = 3 x 415/440 VAC

WIRING DIAGRAM:

ORDERING INFORMATION:

MODE OF OPERATION:

The WRS Phase Control Relay monitors the sequence loss or reversal

of three phase power supplies. The output relay is energized when

the phase sequence is correct and is de-energize when the phase

sequence is wrong or one phase is lost.

M

NR

11

12 14

d1 U V W

RST

R = L1

S = L2

T = L3

STOP

START

ST

D1

R S T R S T R S

T

R

R T S

DWRS

LWRS

PWRS

11

1

1

12

4

2

14

3

8

R

5

3

S

6

4

T

7

5