RA48110-D12D - Carlo Gavazzi Group

Specifications are subject to change without notice (30.06.1999) 1

RA 23... -D06D RA 40... -D08D RA 48...-D12D RA 60... -D16D

Operational voltage range 24 to 280 VACrms 42 to 440 VACrms 42 to 530 VACrms 42 to 660 VACrms

Non-rep. peak voltage 650 Vp850 Vp1200 Vp1600 Vp

Varistor voltage 275 VACrms 420 VACrms 510 VACrms 680 VACrms

Zero voltage turn-on < 20 V < 20 V < 20 V < 20 V

Operational frequency range 45 to 65 Hz 45 to 65 Hz 45 to 65 Hz 45 to 65 Hz

Power factor > 0.5 > 0.5 > 0.5 > 0.5

CE-marking Yes Yes Yes Yes

Norm fulfilled EN 50082-2 EN 50082-2 EN 50082-2 EN 50082-2

Rated opera- Non-rep. Control Rated operational current

tional voltage voltage voltage 10 AAC 25 AAC 50 AAC 90 AAC 110 AAC

230 VACrms 650 Vp5 - 32 VDC RA2310-D06D RA2325-D06D RA2350-D06D RA2390-D06D RA23110-D06D

400 VACrms 850 Vp5 - 32 VDC RA4010-D08D RA4025-D08D RA4050-D08D RA4090-D08D RA40110-D08D

480 VACrms 1200 Vp5 - 32 VDC RA4810-D12D RA4825-D12D RA4850-D12D RA4890-D12D RA48110-D12D

600 VACrms 1600 Vp5 - 32 VDC - - RA6050-D16D RA6090-D16D RA60110-D16D

• Zero switching AC Solid State Relay

• Direct copper bonding (DCB) technology

• LED indication

• Built-in varistor

• Input range: 5 - 32 VDC

• Rated operational current: 10, 25, 50, 90 and

110 AACrms

• Rated operational voltage: 230, 400, 480 and

600 VACrms

• Non-repetitive voltage: Up to 1600 Vp

• Opto-insulation: > 4000 VACrms

• Cover for touch protection

Product Description

The zero switching relay with

antiparallel thyristor output is

the most widely used indus-

trial SSR due to its multiple

application possibilities. The

relay can be used for resis-

tive, inductive and capacitive

loads. The zero switching

relay switches ON when the

sinusoidal curve crosses zero

Solid State Relay

Switching mode

Rated operational voltage

Rated operational current

Control voltage

Non-rep. peak voltage

LED indication

Ordering Key

Solid State Relays

and switches OFF when the

current crosses zero. The

built-in varistor secure transi-

ent protection for the heavy

industrial applications and

the LED indicates the status

of the control input. The

cover is securing touch pro-

tection.

Type Selection

Switching mode Rated operational Rated operational Control voltage Non-rep. voltage

voltage current

A: Zero Switching 23: 230 VACrms 10: 10 AACrms -D: 5 to 32 VDC 06: 650 Vp

40: 400 VACrms 25: 25 AACrms 08: 850 Vp

48: 480 VACrms 50: 50 AACrms 12: 1200 Vp

60: 600 VACrms 90: 90 AACrms 16: 1600 Vp

110: 110 AACrms

Selection Guide

Industrial, 1-Phase ZS w. LED and Built-in Varistor

Types RA 23, RA 40, RA 48, RA 60

RA 23 25 -D 06 D

General Specifications

2Specifications are subject to change without notice (30.06.1999)

Rated insulation voltage

Input to output ≥4000 VACrms

Rated insulation voltage

Output to case ≥4000 VACrms

Insulation

Wiring Diagram Functional Diagram

Control

input

Mains input/load output

Control

input

Load output/mains input

RA 23, RA 40, RA 48, RA 60

Output Specifications

Thermal Specifications

Accessories

Heatsinks

DIN-rail adapter

Fuses

For further information refer

to "General Accessories".

Input Specifications

Input current @ 24 VDC < 10 mA

Response time pick-up < 10 ms

Response time drop-out < 20 ms

Green LED indication Yes

Control voltage range

(-10% to +10%) 5 to 32 VDC

Pick-up voltage 4.5 VDC

Drop-out voltage 1 VDC

RA ..10 -D..D RA ..25 -D..D RA ..50 -D..D RA ..90 -D..D RA ..110 -D..D

Rated operational current AC1 10 AACrms 25 AACrms 50 AACrms 90 AACrms 110 AACrms

AC3 3 AACrms 5 AACrms 15 AACrms 20 AACrms 30 AACrms

Minimum operational current 200 mA 200 mA 200 mA 200 mA 200 mA

Rep. overload current (t = 1 s) < 35 AACrms < 55 AACrms < 125 AACrms < 150 AACrms < 200 AACrms

Non-rep surge current (t = 20 ms)

160 Ap250 Ap600 Ap1000 Ap1500 Ap

Off-state leakage current at

rated voltage and frequency < 6 mA < 6 mA < 6 mA < 6 mA < 6 mA

I2t for fusing (t = 10 ms) 130 A2s 310 A2s 1800 A2s 5000 A2s 11250 A2s

Critical dI/dt 100 A/µs 100 A/µs 100 A/µs 100 A/µs 100 A/µs

On-state voltage drop

at rated current < 1.6 Vrms < 1.6 Vrms < 1.6 Vrms < 1.6 Vrms < 1.6 Vrms

Critical dV/dt 500 V/µs 500 V/µs 500 V/µs 500 V/µs 500 V/µs

Zero crossing detection Yes Yes Yes Yes Yes

RA ..10 -D..D RA ..25 -D..D RA ..50 -D..D RA ..90 -D..D RA ..110 -D..D

Operating temperature range -20° to +70°C -20° to +70°C -20° to +70°C -20° to +70°C -20° to +70°C

(-4 to +158°F) (-4 to +158°F) (-4 to +158°F) (-4 to +158°F) (-4 to +158°F)

Storage temperature range

-40° to +100°C -40° to +100°C -40° to +100°C -40° to +100°C -40° to +100°C

(-40 to +212°F) (-40 to +212°F) (-40 to +212°F) (-40 to +212°F) (-40 to +212°F)

Junction temperature < 125°C (< 257°F) < 125°C (< 257°F) < 125°C (< 257°F) < 125°C (< 257°F) < 125°C (< 257°F)

Rth junction to case 2.0 K/W 1.25 K/W 0.65 K/W 0.35 K/W 0.30 K/W

Rth junction to ambient 12 K/W 12 K/W 12 K/W 12 K/W 12 K/W

Specifications are subject to change without notice (30.06.1999) 3

45.5 **

5.3

2xM5

LED

2xM3

12 13 **

30 ***

24.5 ***

58.2 ***

47.5 ***

66.8 ***

35.5 ***

APPLY

HEATSINK

COMPOUND

RA 23, RA 40, RA 48, RA 60

Dimensions

Weight Approx. 110 g

Housing material Noryl GFN 1, black

Base plate

10 A, 25 A, 50 A Aluminium, nickel-plated

90 A, 110 A Copper, nickel-plated

Potting compound Polyurethane

Relay

Mounting screws M5

Mounting torque 1.5 Nm

Control terminal

Mounting screws M3 x 6

Mounting torque 0.5 Nm

Power terminal

Mounting screws M5 x 6

Mounting torque 2.4 Nm

Housing Specifications

** = ±0.4 mm

*** = ±0.5 mm

Applications

Thermal characteristics

The thermal design of Solid

State Relays is very impor-

tant. It is essential that the user

makes sure that cooling is ad-

equate and that the maximum

junction temperature of the re-

lay is not exceeded.

This relay is designed for use

in applications in which it is

exposed to high surge condi-

tions. Care must be taken to

ensure proper heatsinking

when the relay is to be used at

high sustained currents. Ade-

quate electrical connection

between relay terminals and

cable must be ensured.

Heat flow

Heatsink

temperature

Rth j-c Rth c-s Rth s-a

Junction

temperature

Case

temperature Ambient

temperature

Thermal resistance:

Rth j-c = junction to case

Direct bonding

In the design of the output

power semiconductor direct

bonding of the copper layer

and the ceramic substrate has

been applied. This is to en-

sure uninhibited heat transfer

and high thermal fatigue

strength.

The relay has been designed

for applications requiring large

numbers of load cycles.

Power dissipation

The power dissipation for in-

termittent use is calculated ac-

cording to the following for-

mula:

ton toff

OFF

Irms = ION2x tON

tON + tOFF

Ex: RA 23 50 -D 06D:

Load current = 45 A

tON = 30 s

tOFF = 15 s

Irms =452x 30

30 + 15

The rms current will be

36.7 A.

If the heatsink is placed in a

small closed room, control

panel or the like, the power

dissipation can cause the

ambient temperature to rise.

The heatsink is to be cal-

culated on the basis of the

ambient temperature and the

increase in temperature.

Rth c-s = case to heatsink

Rth s-a = heatsink to ambient

4Specifications are subject to change without notice (30.06.1999)

0.63 0.53 0.42 0.32 - - 97

0.81 0.69 0.57 0.45 0.33 - 84

1 0.89 0.75 0.61 0.47 0.33 71

1.3 1.2 1 0.83 0.66 0.49 59

1.7 1.5 1.3 1.1 0.85 0.64 47

2.2 1.9 1.7 1.4 1.1 0.83 36

3.1 2.7 2.3 1.9 1.5 1.2 26

4.8 4.2 3.6 3 2.4 1.8 17

10 8.8 7.5 6.3 5 3.8 8

20 30 40 50 60 70

0.92 0.76 0.60 0.45 0.29 - 63

1.2 0.99 0.80 0.62 0.44 0.26 55

1.5 1.3 1.1 0.85 0.63 0.42 47

1.9 1.6 1.4 1.1 0.89 0.63 40

2.4 2.1 1.8 1.5 1.2 0.91 33

3 2.7 2.3 1.9 1.5 1.1 26

3.9 3.5 3 2.5 2 1.5 20

5.5 4.8 4.1 3.4 2.7 2.1 15

8.6 7.5 6.4 5.4 4.3 3.2 9

17.9 15.6 13.4 11.2 8,9 6.7 4

20 30 40 50 60 70

0.43 0.35 0.27 - - - 126

0.63 0.53 0.42 0.32 - - 97

0.81 0.69 0.57 0.45 0.33 - 84

1 0.89 0.75 0.61 0.47 0.33 71

1.3 1.2 1 0.83 0.66 0.49 59

1.7 1.5 1.3 1.1 0.85 0.64 47

2.2 1.9 1.7 1.4 1.1 0.83 36

3.1 2.7 2.3 1.9 1.5 1.2 26

4.8 4.2 3.6 3 2.4 1.8 17

10 8.8 7.5 6.3 5 3.8 8

20 30 40 50 60 70

RA 23, RA 40, RA 48, RA 60

Heatsink Dimensions (load current versus ambient temperature)

RA ..50 -D..D

Ambient temp. [°C]

Power

dissipation [W]

Thermal resistance

[K/W]

Load

current [A]

Thermal resistance

[K/W]

Load

current [A] Power

dissipation [W]

Ambient temp. [°C]

Thermal resistance

[K/W]

Load

current [A] Power

dissipation [W]

RA ..110 -D..D

Ambient temp. [°C]

110

RA ..90 -D..D

2.7 2.2 1.8 1.3 0.87 0.41 22

3.1 2.6 2.1 1.7 1.2 0.65 20

3.7 3,1 2.6 2 1.5 0.92 18

4.3 3.7 3.1 2.5 1.9 1.2 16

5 4.3 3.7 3 2.3 1.6 15

5.9 5.1 4.4 3.6 2.8 2.1 13

6.9 6 5.2 4.3 3.5 2.6 12

7.9 6.9 5.9 4.9 4 3 10

10.8 9.5 8.1 6.8 5.4 4.1 7

- 14.2 12.2 10.2 8.1 6.1 5

- - - - 14.6 10.9 3

20 30 40 50 60 70

Load

current [A] Thermal resistance

[K/W]

Ambient temp. [°C]

Power

dissipation [W]

Power

dissipation [W]

2 1.7 1.4 1 0.71 0.40 32

2.5 2.1 1.8 1.4 1 0.66 27

3.1 2.7 2.3 1.9 1.4 1 23

4. 3.5 3 2.5 2 1.4 20

4.9 4.3 3.7 3.1 2.5 1.9 16

6.2 5.4 4.6 3.9 3.1 2.3 13

8.1 7.1 6.1 5.1 4 3 10

11.3 9.9 8.5 7.1 5.6 4.2 7

- 15.6 13.3 11.1 8.9 6.7 5

- - - - 18.7 14 2

20 30 40 50 60 70

22.5

17.5

12.5

7.5

2.5

Ambient temp. [°C]

Load

current [A] Thermal resistance

[K/W]

RA ..10 -D..D

RA ..25 -D..D

Carlo Gavazzi Heatsink

(see Accessories)

No heatsink required

RHS 100 Assy

RHS 301 Assy

RHS 301 F Assy

Consult your distributor

Heatsink Selection

Thermal resistance

Rth s-a > 12.5 K/W

3.0 K/W

0.8 K/W

0.25 K/W

< 0.25 K/W

Compare the value found in the current versus temperature

chart with the standard heatsink values and select the heat-

sink with the next lower value.