Solid State Relays Industrial, 1-Phase ZS w. LED and Built-in Varistor Types RA 23, RA 40, RA 48, RA 60 • 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 Ordering Key The zero switching relay with antiparallel thyristor output is the most widely used industrial SSR due to its multiple application possibilities. The relay can be used for resistive, 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 and switches OFF when the current crosses zero. The built-in varistor secure transient protection for the heavy industrial applications and the LED indicates the status of the control input. The cover is securing touch protection. RA 23 25 -D 06 D Type Selection Switching mode Rated operational voltage Rated operational current Control voltage Non-rep. voltage A: Zero Switching 23: 230 VACrms 40: 400 VACrms 48: 480 VACrms 60: 600 VACrms 10: 10 AACrms 25: 25 AACrms 50: 50 AACrms 90: 90 AACrms 110: 110 AACrms -D: 5 to 32 VDC 06: 650 Vp 08: 850 Vp 12: 1200 Vp 16: 1600 Vp Selection Guide Rated opera- Non-rep. tional voltage voltage Control voltage Rated operational current 10 AAC 25 AAC 230 VACrms 650 Vp 5 - 32 VDC RA2310-D06D RA2325-D06D RA2350-D06D RA2390-D06D RA23110-D06D 400 VACrms 850 Vp 5 - 32 VDC RA4010-D08D RA4025-D08D RA4050-D08D RA4090-D08D RA40110-D08D 480 VACrms 1200 Vp 5 - 32 VDC RA4810-D12D RA4825-D12D RA4850-D12D RA4890-D12D RA48110-D12D 600 VACrms 1600 Vp 5 - 32 VDC - - 50 AAC 90 AAC 110 AAC RA6050-D16D RA6090-D16D RA60110-D16D General Specifications Operational voltage range Non-rep. peak voltage Varistor voltage Zero voltage turn-on Operational frequency range Power factor CE-marking Norm fulfilled RA 23... -D06D RA 40... -D08D RA 48...-D12D RA 60... -D16D 24 to 280 VACrms 650 Vp 275 VACrms < 20 V 45 to 65 Hz > 0.5 Yes EN 50082-2 42 to 440 VACrms 850 Vp 420 VACrms < 20 V 45 to 65 Hz > 0.5 Yes EN 50082-2 42 to 530 VACrms 1200 Vp 510 VACrms < 20 V 45 to 65 Hz > 0.5 Yes EN 50082-2 42 to 660 VACrms 1600 Vp 680 VACrms < 20 V 45 to 65 Hz > 0.5 Yes EN 50082-2 Specifications are subject to change without notice (30.06.1999) 1 RA 23, RA 40, RA 48, RA 60 Input Specifications Control voltage range (-10% to +10%) Pick-up voltage Drop-out voltage Input current @ 24 VDC Response time pick-up Response time drop-out Green LED indication 5 to 32 VDC 4.5 VDC 1 VDC < 10 mA < 10 ms < 20 ms Yes Output Specifications Rated operational current AC1 AC3 Minimum operational current Rep. overload current (t = 1 s) Non-rep surge current (t = 20 ms) Off-state leakage current at rated voltage and frequency I2t for fusing (t = 10 ms) Critical dI/dt On-state voltage drop at rated current Critical dV/dt Zero crossing detection RA ..10 -D..D RA ..25 -D..D RA ..50 -D..D RA ..90 -D..D RA ..110 -D..D 10 AACrms 3 AACrms 200 mA < 35 AACrms 160 Ap 25 AACrms 5 AACrms 200 mA < 55 AACrms 250 Ap 50 AACrms 15 AACrms 200 mA < 125 AACrms 600 Ap 90 AACrms 20 AACrms 200 mA < 150 AACrms 1000 Ap 110 AACrms 30 AACrms 200 mA < 200 AACrms 1500 Ap < 6 mA 130 A2s 100 A/µs < 6 mA 310 A2s 100 A/µs < 6 mA 1800 A2s 100 A/µs < 6 mA 5000 A2s 100 A/µs < 6 mA 11250 A2s 100 A/µs < 1.6 Vrms 500 V/µs Yes < 1.6 Vrms 500 V/µs Yes < 1.6 Vrms 500 V/µs Yes < 1.6 Vrms 500 V/µs Yes < 1.6 Vrms 500 V/µs Yes RA ..10 -D..D RA ..25 -D..D RA ..50 -D..D RA ..90 -D..D RA ..110 -D..D -20° to +70°C (-4 to +158°F) -40° to +100°C (-40 to +212°F) < 125°C (< 257°F) 2.0 K/W 12 K/W -20° to +70°C (-4 to +158°F) -40° to +100°C (-40 to +212°F) < 125°C (< 257°F) 1.25 K/W 12 K/W -20° to +70°C (-4 to +158°F) -40° to +100°C (-40 to +212°F) < 125°C (< 257°F) 0.65 K/W 12 K/W -20° to +70°C (-4 to +158°F) -40° to +100°C (-40 to +212°F) < 125°C (< 257°F) 0.35 K/W 12 K/W -20° to +70°C (-4 to +158°F) -40° to +100°C (-40 to +212°F) < 125°C (< 257°F) 0.30 K/W 12 K/W Thermal Specifications Operating temperature range Storage temperature range Junction temperature Rth junction to case Rth junction to ambient Insulation Rated insulation voltage Input to output Rated insulation voltage Output to case Wiring Diagram Accessories ≥ 4000 VACrms Heatsinks DIN-rail adapter Fuses For further information refer to "General Accessories". ≥ 4000 VACrms Functional Diagram Mains input/load output Control input Control input Load output/mains input 2 Specifications are subject to change without notice (30.06.1999) RA 23, RA 40, RA 48, RA 60 Dimensions Housing Specifications 30 *** 24.5 *** 35.5 *** 45.5 ** 5.3 10 47.5 *** 58.2 *** 66.8 *** 2xM5 LED APPLY HEATSINK COMPOUND 2xM3 12 ** = ± 0.4 mm *** = ± 0.5 mm 13 ** Weight Housing material Base plate 10 A, 25 A, 50 A 90 A, 110 A Potting compound Relay Mounting screws Mounting torque Control terminal Mounting screws Mounting torque Power terminal Mounting screws Mounting torque Approx. 110 g Noryl GFN 1, black Aluminium, nickel-plated Copper, nickel-plated Polyurethane M5 1.5 Nm M3 x 6 0.5 Nm M5 x 6 2.4 Nm Applications This relay is designed for use in applications in which it is exposed to high surge conditions. Care must be taken to ensure proper heatsinking when the relay is to be used at high sustained currents. Adequate electrical connection between relay terminals and cable must be ensured. Thermal characteristics The thermal design of Solid State Relays is very impor- tant. It is essential that the user makes sure that cooling is adequate 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 temperature to rise. The heatsink is to be calculated on the basis of the ambient temperature and the increase in temperature. Heat flow Rth j-c Junction temperature Rth c-s Case 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 ensure 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 intermittent use is calculated according to the following formula: Irms = ION2 x tON tON + tOFF Ex: RA 23 50 -D 06D: Load current = 45 A tON = 30 s t OFF = 15 s Irms = 452 x 30 30 + 15 The rms current will be 36.7 A. Rth s-a Heatsink temperature Ambient temperature ON OFF ton toff Rth c-s = case to heatsink Rth s-a = heatsink to ambient Specifications are subject to change without notice (30.06.1999) 3 RA 23, RA 40, RA 48, RA 60 Heatsink Dimensions (load current versus ambient temperature) RA ..50 -D..D RA ..10 -D..D Load current [A] Thermal resistance [K/W] Load current [A] Power dissipation [W] Power dissipation [W] Thermal resistance [K/W] 16 2.7 2.2 1.8 1.3 0.87 0.41 22 50 0.92 0.76 0.60 0.45 0.29 - 63 15 3.1 2.6 2.1 1.7 1.2 0.65 20 45 1.2 0.99 0.80 0.62 0.44 0.26 55 14 3.7 3,1 2.6 2 1.5 0.92 18 40 1.5 1.3 1.1 0.85 0.63 0.42 47 13 4.3 3.7 3.1 2.5 1.9 1.2 16 35 1.9 1.6 1.4 1.1 0.89 0.63 40 12 5 4.3 3.7 3 2.3 1.6 15 30 2.4 2.1 1.8 1.5 1.2 0.91 33 11 5.9 5.1 4.4 3.6 2.8 2.1 13 25 3 2.7 2.3 1.9 1.5 1.1 26 10 6.9 6 5.2 4.3 3.5 2.6 12 20 3.9 3.5 3 2.5 2 1.5 20 9 7.9 6.9 5.9 4.9 4 3 10 15 5.5 4.8 4.1 3.4 2.7 2.1 15 7 10.8 9.5 8.1 6.8 5.4 4.1 7 10 8.6 7.5 6.4 5.4 4.3 3.2 9 5 - 14.2 12.2 10.2 8.1 6.1 5 5 17.9 15.6 13.4 11.2 8,9 6.7 4 20 30 40 50 60 70 3 - - - - 14.6 10.9 3 TA Ambient temp. [°C] 20 30 40 50 60 TA 70 RA ..90 -D..D Ambient temp. [°C] Load current [A] RA ..25 -D..D Load current [A] Power dissipation [W] Thermal resistance [K/W] 2 1.7 1.4 1 0.71 0.40 32 22.5 2.5 2.1 1.8 1.4 1 0.66 27 20 3.1 2.7 2.3 1.9 1.4 1 23 17.5 4. 3.5 3 2.5 2 1.4 20 15 4.9 4.3 3.7 3.1 2.5 1.9 16 12.5 6.2 5.4 4.6 3.9 3.1 2.3 13 10 8.1 7.1 6.1 5.1 4 3 10 7.5 11.3 9.9 8.5 7.1 5.6 4.2 7 - 15.6 13.3 11.1 8.9 6.7 5 2 25 5 2.5 - - - - 18.7 14 20 30 40 50 60 70 Thermal resistance Rth s-a > 12.5 3.0 0.8 0.25 < 0.25 0.63 0.53 0.42 0.32 - - 97 80 0.81 0.69 0.57 0.45 0.33 - 84 70 1 0.89 0.75 0.61 0.47 0.33 71 60 1.3 1.2 1 0.83 0.66 0.49 59 50 1.7 1.5 1.3 1.1 0.85 0.64 47 40 2.2 1.9 1.7 1.4 1.1 0.83 36 30 3.1 2.7 2.3 1.9 1.5 1.2 26 20 4.8 4.2 3.6 3 2.4 1.8 17 10 10 8.8 7.5 6.3 5 3.8 8 20 30 40 50 60 70 TA RA ..110 -D..D TA Heatsink Selection No heatsink required RHS 100 Assy RHS 301 Assy RHS 301 F Assy Consult your distributor 90 Ambient temp. [°C] Ambient temp. [°C] Carlo Gavazzi Heatsink (see Accessories) Power dissipation [W] Thermal resistance [K/W] K/W K/W K/W K/W K/W Compare the value found in the current versus temperature chart with the standard heatsink values and select the heatsink with the next lower value. Load current [A] Power dissipation [W] Thermal resistance [K/W] 110 0.43 0.35 0.27 - - - 126 90 0.63 0.53 0.42 0.32 - - 97 80 0.81 0.69 0.57 0.45 0.33 - 84 70 1 0.89 0.75 0.61 0.47 0.33 71 60 1.3 1.2 1 0.83 0.66 0.49 59 50 1.7 1.5 1.3 1.1 0.85 0.64 47 40 2.2 1.9 1.7 1.4 1.1 0.83 36 30 3.1 2.7 2.3 1.9 1.5 1.2 26 20 4.8 4.2 3.6 3 2.4 1.8 17 10 10 8.8 7.5 6.3 5 3.8 8 20 30 40 50 60 70 TA Ambient temp. [°C] 4 Specifications are subject to change without notice (30.06.1999)