Carlo Gavazzi DUA01CD48500V 1-phase monitoring relay Data Sheet

Monitoring Relays

1-Phase AC/DC Over Voltage - AC Over Current

Types DUA01, PUA01

DUA01 PUA01

• AC/DC over voltage monitoring relay

• Selection of measuring range by DIP-switches

• Measuring ranges: 2 to 20 VAC/DC, 5 to 50 VAC/DC,

20 to 200 VAC/DC, 50 to 500 VAC/DC, 0.4 to 4 V p

AC

• Adjustable voltage limit on relative scale

• Adjustable hysteresis

• Programmable latching at set level

• Output: 8 A SPDT relay normally de-energized

• For mounting on DIN-rail in accordance with DIN/EN

50 022 (DUA01) or plug-in module (PUA01)

• 22.5 mm Euronorm housing (DUA01) or

36 mm plug-in module (PUA01)

• LED indication for relay and power supply ON

• Galvanically separated power supply

Product Description

DUA01 and PUA01 are precise AC/DC over voltage monitoring relays. They can also be used as 1-phase or

3-phase over current monitoring relays when connected with MI or MP current transformers.

Owing to the built-in latch function, the ON-position of the relay output can be maintained.

The red LED indicates the alarm status.

Ordering Key

Housing

Function

Type

Item number

Output

Power supply

Range

DUA 01 C B23 500V

Type Selection

Mounting

DIN-rail

Plug-in

Output

SPDT

SPDT

Supply: 24 to 48 VAC/DC

DUA 01 C D48 500V

PUA 01 C D48 500V

Supply: 115/230 VAC

DUA 01 C B23 500V

PUA 01 C B23 500V

Input Specifications

Input (voltage level)

DUA01

PUA01

Measuring ranges

Direct

Selectable by DIP-switches

2 to 20 VAC/DC

5 to 50 VAC/DC

20 to 200 VAC/DC

50 to 500 VAC/DC

0.4 to 4 V p

AC

Max. voltage for 1 s

MI and MP CT ranges

1-ph.: 3-ph.:

MI 5 MP 3005

MI 20 MP 3020

MI 100 MP 3100

MI 500 MP 3500

Terminals Y1, Y2

Terminals 5, 7

Int. resist.

> 500 k

Ω

> 500 k

Ω

> 500 k

Ω

> 500 k

Ω

> 500 k

Ω

AAC rms

0.5 to 5 A

2 to 20 A

10 to 100 A

50 to 500 A

Max. volt.

600 V

600 V

600 V

600 V

600 V

1000 V

Max. curr.

20 AAC

50 AAC

250 AAC

750 AAC

Note:

The input voltage cannot raise over 300 VAC/DC with respect to ground (PUA01 only)

Contact input

DUA01

PUA01

Disabled

Enabled

Latch disable

Terminals Z1, Y1

Terminals 8, 9

> 10 k Ω

< 500 Ω

> 500 ms

Output Specifications

Output

Rated insulation voltage

SPDT relay

250 VAC

Contact ratings (AgSnO

2

)

Resistive loads AC 1

µ

8 A @ 250 VAC

DC 12 5 A @ 24 VDC

Small inductive loads AC 15 2.5 A @ 250 VAC

DC 13 2.5 A @ 24 VDC

Mechanical life

Electrical life

Operating frequency

≥ 30 x 10 6 operations

≥ 10 5 operations

(at 8 A, 250 V, cos ϕ = 1)

≤ 7200 operations/h

Dielectric strength

Dielectric voltage

≥ 2 kVAC (rms)

Rated impulse withstand volt. 4 kV (1.2/50 µs)

Specifications are subject to change without notice (08.06.10) 1

DUA01, PUA01

Supply Specifications

Power supply

Rated operational voltage through terminals:

A1, A2 or A3, A2 (DUA01)

2, 10 or 11, 10 (PUA01)

Overvoltage cat. III

(IEC 60664, IEC 60038)

D48:

B23:

Dielectric voltage

Supply to input

Supply to output

Input to output

Rated operational power

AC

DC

24 to 48 VAC/DC ± 15%

45 to 65 Hz, insulated

115/230 VAC ± 15%

45 to 65 Hz, insulated

DC supply

2 kV

4 kV

4 kV

AC supply

4 kV

4 kV

4 kV

4 VA

2 W

General Specifications

Reaction time

Alarm ON delay

Alarm OFF delay

< 100 ms

(voltage rising from

-20% to +20% set value)

< 300 ms

(voltage decreasing from

+20% to -20% set value)

General Specifications (cont.)

Accuracy

Temperature drift

Repeatability

Indication for

Power supply ON

Output relay ON

(15 min warm-up time)

± 1000 ppm/°C

± 0.5% on full-scale

LED, green

LED, red

Environment

Degree of protection

Pollution degree

Operating temperature

Storage temperature

Housing

Dimensions

Material

Weight

(EN 60529)

IP 20

3 (DUA01), 2 (PUA01)

-20 to 60°C, R.H. < 95%

-30 to 80°C, R.H. < 95%

DUA01 22.5 x 80 x 99.5 mm

PUA01 36 x 80 x 94 mm

PA66 or Noryl

Approx. 150 g

Screw terminals

Tightening torque Max. 0.5 Nm acc. to IEC 60947

Product standard

Approvals

CE Marking

EN 60255-6

UL, CSA

L.V. Directive 2006/95/EC

EMC Directive 2004/108/EC

EMC

Immunity

Emissions

According to EN 60255-26

According to EN 61000-6-2

According to EN 60255-26

According to EN 61000-6-3

Mode of Operation

DUA01 and PUA01 monitor both AC and DC over voltage. When connected with

MI or MP current transformer (using the 0.4 - 4 V p range) they can monitor 1phase or 3-phase AC currents up to 500 A.

Example 2 (MI CT)

(no connection between terminals Z1, Y1 or 8, 9)

The relay operates when the current flowing through the

CT exceeds the set level. It releases when the current drops min. 4% below the set level (see hysteresis) or when power supply is interrupted.

Example 1

(connection between terminals Z1, Y1 or 8, 9 - latch function enabled)

The relay operates and latches in operating position when the measured value exceeds the set level. Provided that the voltage has dropped min. 4% below the set point (see hysteresis), the relay releases when the interconnection between terminals Z1, Y1 or 8, 9 is interrupted or the power supply is interrupted as well.

Example 3 (MP CT)

(no connection between terminals Z1, Y1 or 8, 9 - latch function disabled)

The relay operates when the maximum current flowing through the CT exceeds the set level. It releases when the maximum current drops min. 4% below the set level

(see hysteresis) or when power supply is interrupted.

Range - Level Setting

Adjust the measuring range setting the DIP switches 1 to

4 as shown below.

To access the DIP switches open the grey plastic cover using a screwdriver as shown below.

Centre knob:

Setting of voltage on relative scale: from 10 to 110% of the full-scale value.

Hysteresis:

Approx. 4% of set value, it can be extended by inserting a resistor between terminals Z1, Y1 or 8, 9.

Approx. resistor values:

10%: 180 k

Ω

25%:

50%:

47 k

Ω

22 k

Ω

75%: 15 k

Ω

Latch: < 500

Ω

Measuring range

OFF ON OFF OFF 0.4 to 4 V p

ON OFF OFF OFF 2 to 20 VAC/DC

OFF OFF OFF OFF 5 to 50 VAC/DC

ON OFF ON OFF 20 to 200 VAC/DC

ON OFF OFF ON 50 to 500 VAC/DC

2 Specifications are subject to change without notice (08.06.10)

DUA01, PUA01

Operation Diagrams

Wiring Diagrams

24÷48 VAC/DC

230 VAC 115 VAC

24÷48 VAC/DC

230 VAC 115 VAC

24÷48 VAC/DC

230 VAC 115 VAC

24÷48 VAC/DC

230 VAC 115 VAC

24÷48 VAC/DC

230 VAC 115 VAC

DUA01

Specifications are subject to change without notice (08.06.10)

PUA01

24÷48 VAC/DC

230 VAC 115 VAC

3

DUA01, PUA01

Dimensions

DIN-rail

22.5

99.5

Plug-in

36

28.5

94

90

28.5

4 Specifications are subject to change without notice (08.06.10)