Solid State Relays Industrial, 2-Pole ZS Type RA2A • 2-Pole AC Solid State Relay • Zero switching • For resistive and inductive AC loads • Direct copper bonding (DCB) technology • LED indication • Rated operational current: 2 x 25 and 2 x 40AACrms • Rated operational voltage: 230 - 600VACrms • Input range: 4.5 - 32VDC • Non-repetitive peak voltage: Up to 1200Vp • Opto-isolation: 4000VACrms Product Description Ordering Key RA 2 A 48 D 25 M This 2-pole industrial relay voltage.The same applies to Solid State Relay minimises the space require- control B. LEDsindicate the Number of poles ments in a control cabinet control status of each pole. Zero switching without compromising perfor- The optimised design is free of Rated operational voltage mance. By applying an input moulding mass to reduce inter- Control voltage voltage on control A, the corre- nal mechanical stress. Rated operational current sponding output semicondcu- The RA2A..M types have been Load type tor is activated at the first zero specially customised for crossing of the line demanding inductive loads. 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 M: Inductive p 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 4.5 - 32VDC RA2A23D25 RA2A23D40 p RA2A23D25M RA2A23D40M 400VACrms 850V 4.5 - 32VDC RA2A40D25 RA2A40D40 p RA2A40D25M RA2A40D40M 480VACrms 1200V 4.5 - 32VDC RA2A48D25 RA2A48D40 p RA2A48D25M RA2A48D40M 600VACrms 1200V 4.5 - 32VDC RA2A60D25 RA2A60D40 p RA2A60D25M RA2A60D40M Input Specifications Housing Specifications Control voltage range 4.5 - 32VDC Weight Approx. 85g Pick-up voltage 4.25VDC Housing material Noryl GFN 1, black Drop-out voltage 2VDC Base plate 25, 40A Aluminium, nickel-plated Input current per pole 40A (M type) Copper, nickel-plated @ max. input voltage ≤10mA FASTONTerminal size 6.3mm Response time pick-up ≤10ms @ 50 Hz Response time drop-out ≤10ms @ 50 Hz Specifications are subject to change without notice (30.09.2005) 1 RA2A General Specifications RA2A23... RA2A40... RA2A48... RA2A60... Operational voltage range 24 to 265VACrms 42 to 440VACrms 42 to 530VACrms 42 to 660VACrms Non-rep. peak voltage 650V 850V 1200V 1200V p p p p Rated insulation input -output/output - heatsink 4kV 4kV 4kV 4kV Operational frequency range 45 to 65Hz 45 to 65Hz 45 to 65Hz 45 to 65Hz LED ON indication (x2) Yes (green) Yes (green) Yes (green) Yes (green) Power factor RA2A ≥ 0.95 @ 230VAC ≥ 0.95 @ 400VAC ≥ 0.95 @ 480VAC ≥ 0.95 @ 600VAC RA2A..M ≥ 0.50 @ 230VAC ≥ 0.50 @ 400VAC ≥ 0.50 @ 480VAC ≥ 0.50 @ 600VAC Zero voltage turn-on < 15V < 15V < 15V < 15V Approvals UL, cUL, CSA UL, cUL, CSA UL, cUL, CSA UL, cUL, CSA CE-marking Yes Yes Yes Yes Conformance VDE VDE VDE VDE Output Specifications RA2A...25 RA2A...40 RA2A..D25M RA2A..D40M Rated operational current AC 51 2 x 25AACrms 2 x 40AACrms 2 x 25AACrms 2 x 40AACrms AC 53a - - 2 x 5AACrms 2 x 15AACrms Minimum operational current 150mA 150mA 150mA 150mA Non-rep. surge current t=10 ms 300A 390A 300A 580A p p p p Off-state leakage current < 3mA < 3mA < 3mA < 3mA 2 2 2 2 2 I t for fusing t=1-10 ms 450A s 760A s 450A s 1680A s On-state voltage drop @ rated current ≤ 1.6Vrms ≤ 1.6Vrms ≤ 1.6Vrms ≤ 1.6Vrms Critical dV/dt off-state min. 500V/μs 500V/μs 500V/μs 500V/μs Zero crossing detection Yes Yes Yes Yes Functional Diagram Dimensions All dimensions in mm 2 Specifications are subject to change without notice (30.09.2005) RA2A Heatsink Dimensions (load current versus ambient temperature) RA 2....40 RA 2....25/25M Load Thermal resistance Power Load Power Thermal resistance current [A] [K/W] dissipation [W] current [A] dissipation [W] [K/W] 0.68 0.56 0.44 0.32 0.19 0.07 82 1.11 0.94 0.78 0.62 0.46 0.29 62 80 50 0.87 0.73 0.59 0.45 0.31 0.17 72 1.36 1.17 0.99 0.80 0.61 0.43 54 72 45 1.10 0.94 0.78 0.62 0.45 0.29 62 1.68 1.47 1.25 1.03 0.81 0.60 46 64 40 1.41 1.22 1.03 0.83 0.64 0.45 52 2.06 1.80 1.54 1.29 1.03 0.77 39 56 35 1.8 1.6 1.36 1.13 0.90 0.67 43 2.5 2.2 1.87 1.56 1.25 0.94 32 48 30 2.3 2.0 1.7 1.4 1.1 0.86 35 3.1 2.7 2.3 1.9 1.6 1.17 26 40 25 3.0 2.6 2.2 1.9 1.5 1.11 27 4.0 3.5 3.0 2.5 2.0 1.52 20 32 20 4 4 3 2.6 2.0 1.5 20 6 5 4 3.5 2.8 2.1 14 24 15 6 6 5 4 3 2.4 13 9 8 764 3.39 16 10 13 12 10 8 7 5 6 18 16 14 12 9 7 4 8 5 20 30 40 50 60 70 20 30 40 50 60 70 TA T A Ambient temp. [°C] Ambient temp. [°C] RA 2....40M Load Power Thermal resistance Heatsink Selection current [A] dissipation [W] [K/W] Carlo Gavazzi Heatsink Thermal ...for power 0.41 0.32 0.23 0.13 0.04 - 108 100 (see Accessories) resistance... dissipation No heatsink required --- N/A 0.55 0.44 0.34 0.23 0.13 0.02 95 90 RHS 300 5.00K/W > 0 W 0.72 0.60 0.48 0.35 0.23 0.11 82 80 RHS 100 3.00K/W > 25 W 0.95 0.80 0.66 0.52 0.37 0.23 70 70 RHS 45C 2.70K/W > 60 W RHS 45B 2.00K/W > 60 W 1.25 1.08 0.90 0.73 0.56 0.39 58 60 RHS 90A 1.35K/W > 60 W 1.7 1.5 1.25 1.04 0.83 0.61 47 50 RHS 45A plus fan 1.25K/W > 0 W RHS 45B plus fan 1.20K/W > 0 W 2.2 1.9 1.6 1.4 1.1 0.82 36 40 RHS 112A 1.10K/W > 100 W 3 2.7 2.3 1.9 1.5 1.14 26 30 RHS 301 0.80K/W > 70 W 5 4 4 2.9 2.3 1.8 17 20 RHS 90A plus fan 0.45K/W > 0 W RHS 112A plus fan 0.40K/W > 0 W 10 9 7 6 5 3.6 8 10 RHS 301 plus fan 0.25K/W > 0 W 20 17 15 12 10 7 4 5 Consult your distribution > 0.25K/W N/A Infinite heatsink - No solution --- N/A 20 30 40 50 60 70 TA Ambient temp. [°C] 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. Insulation Accessories Rated insulation voltage ≥ 4000VACrms Heatsinks For further information refer Input to output DIN rail adapter to "General Accessories". Varistors Rated insulation voltage ≥ 4000VACrms Fuses Output to case Specifications are subject to change without notice (30.09.2005) 3 RA2A Applications This relay is designed for use It is essential that the user Heat flow in applications in which it is makes sure that cooling is ad- exposed to high surge condi- equate and that the maximum tions. Care must be taken to junction temperature of the ensure proper heatsinking relay is not exceeded. when the relay is to be used at R j-c th R c-s Rth s-a high sustained currents. Ade- If the heatsink is placed in a th quate electrical connection small closed room, control panel between relay terminals and or the like, the power dissipation Case Heatsink Ambient Junction temperature temperature temperature cable must be ensured. can cause the ambient tem- temperature perature to rise. The heatsink Thermal characteristics is to be calculated on the basis Thermal resistance: R c-s = case to heatsink th The thermal design of Solid of the ambient temperature and R j-c = junction to case R s-a = heatsink to ambient th th State Relays is very important. the increase in temperature. Thermal Specifications RA2A...25. RA2A...40 RA2A...40M Operating temperature -20° to 70°C -20° to 70°C -20° to 70°C Storage temperature -20° to 80°C -20° to 80°C -20° to 80°C Junction temperature ≤ 125°C ≤ 125°C ≤ 125°C R junction to case th 1 pole 1K/W 1K/W 0.92K/W 2 pole 0.5K/W 0.5K/W 0.46K/W R junction to ambient ≤ 20K/W ≤ 20K/W ≤ 20K/W th Applications A single two pole relay in a three phase application. A two pole relay and a single pole relay connected on a Star and Delta (Economy switch) three phase application. Delta, star and star with a neu- tral point. 4 Specifications are subject to change without notice (30.09.2005)