RA2A40D40中文资料

crossing of the line

Solid State Relays Type Selection

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

current

voltage voltage type A: Zero switching

23: 230VACrms 25: 2 x 25AACrms D: 4.5 - 32VDC

23: 650V p M: Inductive

40: 400VACrms 40: 2 x 40AACrms

40: 850V p 48: 480VACrms 48: 1200V p 60: 600VACrms

60: 1200V p

Selection Guide

Rated operational Non-rep. voltage Control voltage Rated operational current voltage 2 x 25AACrms 2 x 40AACrms 230VACrms 650V p 4.5 - 32VDC RA2A23D25RA2A23D40RA2A23D25M RA2A23D40M 400VACrms 850V p 4.5 - 32VDC RA2A40D25RA2A40D40RA2A40D25M RA2A40D40M 480VACrms 1200V p 4.5 - 32VDC RA2A48D25RA2A48D40RA2A48D25M RA2A48D40M

600VACrms

1200V p

4.5 - 32VDC

RA2A60D25 RA2A60D40 RA2A60D25M RA2A60D40M

Industrial, 2-Pole ZS Type RA2A

demanding inductive loads.

Input Specifications

Output Specifications

General Specifications

Functional Diagram Dimensions

All dimensions in mm

0.680.560.440.320.190.07820.870.730.590.450.310.17721.100.940.780.620.450.29621.41 1.22 1.030.830.640.45521.8 1.6 1.36 1.130.900.67432.3 2.0 1.7 1.4 1.10.86353.0 2.6 2.2 1.9 1.5 1.1127443 2.6 2.0 1.52066543 2.4131312108756

20

30

40

50

60

70Heatsink Dimensions (load current versus ambient temperature)

RA 2....25/25M

T A

Ambient temp. [°C]

5045403530252015105

Power

dissipation [W]

Thermal resistance [K/W]

Load

current [A]

1.110.940.780.620.460.29621.36 1.170.990.800.610.43541.68 1.47 1.25 1.030.810.6046

2.06 1.80 1.54 1.29 1.030.77392.5 2.2 1.87 1.56 1.250.9432

3.1 2.7 2.3 1.9 1.6 1.1726

4.0 3.5 3.0 2.5 2.0 1.5220654 3.5 2.8 2.11498764 3.3918161412974

RA 2 (40)

T

A

Ambient temp. [°C]

8072645648403224168

Power

dissipation [W] Thermal resistance [K/W]

Load

current [A]

Carlo Gavazzi Heatsink Thermal ...for power

(see Accessories)resistance... dissipation No heatsink required ---N/A

RHS 300 5.00K/W > 0 W RHS 100 3.00K/W > 25 W RHS 45C 2.70K/W > 60 W RHS 45B 2.00K/W > 60 W RHS 90A 1.35K/W > 60 W RHS 45A plus fan 1.25K/W > 0 W RHS 45B plus fan 1.20K/W > 0 W

RHS 112A 1.10K/W > 100 W RHS 3010.80K/W > 70 W RHS 90A plus fan 0.45K/W > 0 W RHS 112A plus fan 0.40K/W > 0 W RHS 301 plus fan 0.25K/W > 0 W Consult your distribution > 0.25K/W N/A Infinite heatsink - No solution ---N/A

Heatsink Selection

RA 2....40M

T A

Ambient temp. [°C]

100 9080706050403020105

Power

dissipation [W]

Thermal resistance [K/W]

Load

current [A]

0.410.320.230.130.04-1080.550.440.340.230.130.02950.720.600.480.350.230.11820.950.800.660.520.370.23701.25 1.080.900.730.560.39581.7 1.5 1.25 1.040.830.61472.2 1.9 1.6 1.4 1.10.82363 2.7 2.3 1.9 1.5 1.1426544 2.9 2.3 1.817109765 3.68201715121074

20

30

40

50

60

70

Accessories

Heatsinks

DIN rail adapter Varistors Fuses

For further information refer to "General Accessories".

Insulation

Note: Add the currents of both poles and compare with datasheets for proper heatsink.

Each pole can handle up to the maximum current specified. Example: Each pole of the RA2A23D25 can handle a maximum of 25 A.

Applications

Heat flow

Heatsink temperature

R th j-c

R th c-s

R th s-a

Junction temperature

Case

temperature

Ambient temperature

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.Thermal characteristics The thermal design of Solid State Relays is very important.

R th c-s = case to heatsink R th s-a = heatsink to ambient

Thermal resistance:

R th j-c = junction to case It is essential that the user makes sure that cooling is ad-equate and that the maximum junction temperature of the relay is not exceeded.If the heatsink is placed in a small closed room, control panel or the like, the power dissipation can cause the ambient tem-perature to rise. The heatsink is to be calculated on the basis of the ambient temperature and the increase in temperature.

Thermal Specifications

Applications

A single two pole relay in a three phase application. Star and Delta (Economy switch)

A two pole relay and a single pole relay connected on a three phase application. Delta, star and star with a neu-tral point.