Product description

The SW32V voltage relay is a high-quality voltage monitor with a large measurement range for monitoring direct, alternating and three-phase networks for overvoltage and/or undervoltage. In three-phase current networks, phase symmetry and phase sequence can be monitored in addition.

The limits are set in volts. That allows using the unit with various rated voltages.The digital display is used to display the measurements and to precisely set limits, response times and functions.

 

Summary of the functions
For use as a voltage monitor in energy generation and distribution plants, especially in-plant systems such as PV plants or combined heat and power plants. Voltage monitoring in machines and plants to prevent errors, damage or failures in sensitive equipment or devices.

• Voltage monitoring in direct current networks DC 10.0…600 V

• Voltage monitoring in alternating current networks AC 15.0…480 V

• Voltage monitoring in three-phase current networks with//without N up to 3AC 830 V

• Preset programs for grid- and plant protection according to bdew directive (medium voltage)

• Asymmetrical and phase failure monitoring connectable

• Real root mean square measurement (for AC, both half waves)

• 2 Alarms/output relays, 1 each change-over contact

• Alarm and reset delay for every limit value can be individually set

• Setting of limits and hysteresis in volts

• Measurement value simulation to check the settings

• Code lock can be enabled

• Control voltage AC/DC 24-270 V

• Distributor housing for panel mounting, 4 TE (70 mm), front-to-back size 55 mm

• Mounting on 35 mm mounting rails DIN EN 60715

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Technical Data

 

Control voltage Us

Rated connection                          .......           AC/DC 24-270 V, 0/45...65 Hz, < 5 VA
                                                                           DC: 20.4...297 V, AC: 20.4...297 V

 

 

Output relay (2 x change-over contact)

 

Switching voltage                           .......          Max. AC 415 V

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Switching capacity                         ......           5 A 250 V

max. AC cos φ = 1

 

Switching capacity                       

max. DC (resistive)                         .......          0.3 A DC 300 V    .....    5 A DC 30 V

 

Nominal operational current Ie  .......           AC-15 Ie = 3 A Ue = 250  V

                                                                           DC-13 Ie = 2 A Ue = 24 V     

                                                                           DC-13 Ie = 0.4 A Ue = 120 V

                                                                           DC-13 Ie = 0.2 A Ue = 250 V

 

Recommended series fuse          .......           max. T 3.15 A (gL)

 

Contact service life, mech.           .......           30 x 106 operating cycles

 

Contact service life,                     

electr. cos φ = 1                             .......           5 x 105 operating cycles at AC 250 V / 3 A

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Voltage measurement

 

Measurement voltage DC            .......           DC 10.0…600V

 

Measurement voltage                

phase – phase                               .......           AC 26.0…830 V (< 5V: 0 is displayed)

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Measurement voltage                  

phase – N                                       .......           AC 15.0…480 V (< 5V: 0 is displayed)

 

Frequency AC measurement       .......           40…100 Hz

 

Measurement time DC                 .......           DC Mean value over 50ms

 

Measurement time AC                 .......           < 50ms

 

Measurement accuracy DC         .......           0.5% of measurement ± 1 digit

 

Measurement accuracy AC          .......           > 100V: 0.8% of measurement ± 1 digit

(with N)                                                             < 100V: 0.8% of measurement ± 5 digits                                                                                        (res. 0.1V)

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Measurement accuracy AC          .......           > 100V: 1.0% of measurement ± 1 digit

(without N)                                                       < 100V: 1.0% of measurement ± 5 digits                                                                                        (res. 0.1V)

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Measurement principle                .......          Real root mean square measurement

                                                                           (both half waves)

 

Hysteresis                                       .......           Adjustable 1…99 V

 

Accuracy asymmetry                    .......           ± Asymmetry in % * 0.15

 

Hysteresis asymmetry                  .......           Fixed 1%

 

Measuring functions                     .......          3-phase with/without N,                                                                                                                    1-phase against N,

                                                                           DC

 

Response time                               .......           Adjustable 0.05 (±15ms)…99.9 s

 

Reset time                                      .......           Adjustable 0(>200ms) … 999 s

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Test conditions (EN 60255)

 

Rated impulse                                .......          6000 V

withstand vltage

 

Overvoltage category                   .......           III

 

Pollution degree                            .......           2

 

Rated insulation voltage Ui         .......            AC 690 V

 

Operating time                              .......           100 %

 

Permissible                                   

ambient temperature                   .......           -20 °C... +55 °C EN 60 068-2-2 dry heat

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EMC - immunity                             .......           EN 61000-6-2

 

EMC - emission                              .......           EN 61000-6-4

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Housing

 

Mounting type                               .......           V4

 

Front-to-back size                         .......           55 mm

 

Dimensions (W x H x D)                .......          90 x 70 x 58 mm

 

Wiring connection                     

single strand                                  .......           ea. 1 x 4 mm2

 

Finely stranded with                     

wire end ferrule                             .......           ea. 1 x 2.5 mm2

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Protection class, housing             .......           IP 30

 

Protection class, terminals          .......           IP 20

 

Mounting                                        .......           Snap-on fastening on 35 mm mounting rail                                                                                  acc EN 60 715 or with M4 screwed                                                                                                  attachment (additional bar not included in                                                                                    the scope of delivery)

 

Weight                                             .......           approx. 200 g

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