Solid State Relays Industrial, 1-Phase ZS w. LED and Built-in Varistor Types RAM1A..G Zero switching AC Solid State Relay Direct copper bonding (DCB) technology Operational ratings: Up to 125AACrms and 600VACrms 2 input ranges: 3-32VDC* and 20-280 VAC/22-48VDC Built-in varistor on output LED indication Clip-on IP 20 protection cover Self-lifting terminals Housing free of moulding mass VDE certified for Glow wire test according to EN60335-1 Product De scrip tion Ordering Key RAM 1 A 60 D 50 G The industrial, 1-phase relay crosses zero and switches Solid State Relay with antiparallel thyristor out- OFF when the current cross- Number of poles put is the most widely used es zero. The built-in varistor Switching mode indus trial SSR due to its secures transient protection. Rated operational voltage multiple application possibil- The LED indicates the status Control voltage ities. The relay can be used of the control input. The clip- Rated operational current for resistive, inductive and on cover secures touch pro- Glow wire certified (EN60335-1) capacitive loads. The zero tection (IP 20). Protected switching relay switches ON output terminals can handle 2 when the sinusoidal curve cables up to 16 mm . Type Selection Rated operational Rated operational Switching mode Control voltage Options voltage current A: Zero Switching 23: 230VACrms A: 20-280 VAC/22-48VDC 25: 25AACrms G: certified for glow wire requirements of EN60335-1 (ZS) 60: 600VACrms D: 3 - 32VDC* 50: 50AACrms 51: 50AACrms 100:100AACrms Selection Guide Rated Blocking Control Max. operational Current (with suitable heatsink) operational voltage voltage 25AAC 50AAC 50AAC 100AAC 125AAC 2 voltage High I t 230VACrms 650V 3 - 32VDC RAM1A23D25G RAM1A23D50G - - - p 20-280VAC/22-48VDC RAM1A23A25G RAM1A23A50G - - - 1200V 4 - 32VDC RAM1A60D25G RAM1A60D50G 600VACrms p RAM1A60D51G RAM1A60D100G RAM1A60D125G 20-280VAC/22-48VDC RAM1A60A25G RAM1A60A50G RAM1A60A51G RAM1A60A100G RAM1A60A125G Specifications are subject to change without notice (05.06.2017) 1 RAM..G General Speci fica tions RAM1A23.. RAM1A60.. Operational voltage range 24 to 265VACrms 42 to 660VACrms Blocking voltage 650V 1200V p p Zero voltage turn-on 10V 10V Operational frequency range 45 to 65Hz 45 to 65Hz Power factor > 0.5 230VACrms > 0.5 600VACrms Approvals UR, cUR, CSA, VDE*, CCC, EAC UR, cUR, CSA, VDE*, CCC, EAC CE-marking Yes Yes** Isolation Input to Output 4000 Vrms 4000 Vrms Input and Output to case 4000 Vrms 4000 Vrms * VDE0805, VDE0700 clause 29, 30.2.3 ** Heatsink must be conected to ground *** RAM1A..51G is UR, cUR approved only Input Specifications RAM1...D.. RAM1...A.. Control voltage range RAM1A23... 3-32VDC 20-280VAC, 22-48VDC RAM1A60... 4-32VDC 20-280VAC, 22-48VDC Pick-up voltage Ta = 25C RAM1A23... 2.5VDC 18VAC/DC RAM1A60... 3.5VDC 18VAC/DC Reverse voltage 32VDC - Drop out voltage 1.2VDC 6VAC/DC Input current max input voltage 12mA 20mA Response time pick-up 1/2 cycle 12ms Response time drop-out 1/2 cycle 40ms Output Specifications RAM1...25 RAM1...50 RAM1...51 RAM1...100 RAM1...125 Rated operational current* AC51 Ta=25C 25Arms 50Arms 50Arms 100Arms 125Arms AC53a Ta=25C 5Arms 15Arms 15Arms 20Arms 30Arms Min. operational current 150mA 250mA 400mA 400mA 500mA Rep. overload current t=1 s < 55AACrms < 125AACrms < 125 AACrms < 150 AACrms < 200AACrms Non-rep. surge current t=10 ms 325A 600A 800A 1150A 1900A p p p p p Off-state leakage current rated voltage and frequency < 3mArms < 3mArms < 3mArms < 3mArms < 3mArms 2 2 2 2 2 2 I t for fusing t= 10 ms < 525A s < 1800A s < 3200A s < 6600As <18000A s Critical dV/dt off-state min. 1000V/s 1000V/s 1000V/s 1000V/s 1000V/s Endurance testing acc. to UL 508 100,000 cycles 100,000 cycles 6,000 cycles 6,000 cycles 6,000 cycles Note: UL requirement for General Use Endurance Testing is 6,000 cycles * Refer to Heatsinks dimensions section for selection of a suitable heatsink 2 Specifications are subject to change without notice (05.06.2017)