| Semiconductor relay, 1-phase 3RF2 Overall width 22.5 mm, 70 A 48-600 V / 4-30 V DC screw terminal Blocking voltage 1200 V Special inscription Customer-specific special version |
| Product brand name | SIRIUS |
| Product designation | solid-state relay |
| Product type designation | 3RF21 |
| Manufacturer's article number | |
| _1 / of the accessories that can be ordered | |
| _3 / of the accessories that can be ordered | |
| _4 / of the accessories that can be ordered | |
| _5 / of the accessories that can be ordered | |
| Product designation | |
| _1 / of the accessories that can be ordered | terminal cover |
| _3 / of the accessories that can be ordered | converter |
| _4 / of the accessories that can be ordered | load monitoring |
| _5 / of the accessories that can be ordered | load monitoring, basis |
| General technical data |
| Product function | zero-point switching |
| Power loss [V∙A] / maximum | 94 V·A |
| Power loss [W] / for rated value of the current / at AC / in hot operating state | 94 W |
| Insulation voltage | |
| rated value | 600 V |
| Protection class IP | IP20 |
| Shock resistance / acc. to IEC 60068-2-27 | 15g / 11 ms |
| Vibration resistance / acc. to IEC 60068-2-6 | 2g |
| Reference code / acc. to DIN 40719 extended according to IEC 204-2 / acc. to IEC 750 | K |
| Reference code / acc. to DIN EN 81346-2 | Q |
| Reference code / acc. to DIN EN 61346-2 | Q |
| Main circuit |
| Number of poles / for main current circuit | 1 |
| Number of NO contacts / for main contacts | 1 |
| Number of NC contacts / for main contacts | 0 |
| Operating voltage / at AC | |
| at 50 Hz / rated value | 48 ... 600 V |
| at 60 Hz / rated value | 48 ... 600 V |
| Operating frequency / rated value | 50 ... 60 Hz |
| Relative symmetrical tolerance / of the operating frequency | 10 % |
| Operating range relative to the operating voltage / at AC | |
| at 50 Hz | 40 ... 660 V |
| at 60 Hz | 40 ... 660 V |
| Operating current | |
| at AC-51 / rated value | 50 A |
| Ampacity / maximum | 70 A |
| Operating current / minimum | 500 mA |
| Rate of voltage rise / at the thyristor / for main contacts / maximum permissible | 1 000 V/µs |
| Blocking voltage / at the thyristor / for main contacts / maximum permissible | 1 200 V |
| Reverse current / of the thyristor | 10 mA |
| Derating temperature | 40 °C |
| Surge current resistance / rated value | 1 200 A |
| I2t value / maximum | 7 200 A²·s |
| Control circuit/ Control |
| Type of voltage / of the control supply voltage | DC |
| Control supply voltage / 1 | |
| at DC / rated value | 30 V |
| at DC | 4 ... 30 V |
| Control supply voltage | |
| at DC / initial value for signal <1> detection | 4 V |
| at DC / Full-scale value for signal<0> recognition | 1 V |
| Control current / at minimum control supply voltage | |
| at DC | 2 mA |
| Control current / at DC / rated value | 15 mA |
| Switch-on delay time | 1 ms; additionally max. one half-wave |
| Off-delay time | 1 ms; additionally max. one half-wave |
| Number of NC contacts / for auxiliary contacts | 0 |
| Number of NO contacts / for auxiliary contacts | 0 |
| Number of CO contacts / for auxiliary contacts | 0 |
| Installation/ mounting/ dimensions |
| Mounting type | screw fixing |
| Side-by-side mounting | Yes |
| Height | 85 mm |
| Width | 22.5 mm |
| Depth | 48 mm |
| Installation altitude / at height above sea level / maximum | 1 000 m |
| Connections/ Terminals |
| Type of connectable conductor cross-sections | |
| for main contacts | |
| — solid | 2x (1.5 ... 2.5 mm²), 2x (2.5 ... 6 mm²) |
| — finely stranded / with core end processing | 2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²), 1x 10 mm² |
| at AWG conductors / for main contacts | 2x (14 ... 10) |
| Type of connectable conductor cross-sections | |
| for auxiliary and control contacts | |
| — solid | 1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.0 mm²) |
| — finely stranded / with core end processing | 1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.0 mm²) |
| — finely stranded / without core end processing | 1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.0 mm²) |
| at AWG conductors / for auxiliary and control contacts | 1x (AWG 20 ... 12) |
| Tightening torque | |
| for main contacts / with screw-type terminals | 2 ... 2.5 N·m |
| for auxiliary and control contacts / with screw-type terminals | 0.5 ... 0.6 N·m |
| Tightening torque [lbf·in] | |
| for main contacts / with screw-type terminals | 7 ... 10.3 lbf·in |
| for auxiliary and control contacts / with screw-type terminals | 4.5 ... 5.3 lbf·in |
| Design of the thread / of the connection screw | |
| for main contacts | M4 |
| of the auxiliary and control contacts | M3 |
| Wire stripping length / of the cable | |
| for main contacts | 7 mm |
| for auxiliary and control contacts | 7 mm |
| Ambient conditions |
| Ambient temperature | |
| during operation | -25 ... +60 °C |
| during storage | -55 ... +80 °C |
| Electromagnetic compatibility |
| Conducted interference | |
| due to burst / acc. to IEC 61000-4-4 | 2 kV / 5 kHz behavior criterion 2 |
| due to conductor-earth surge / acc. to IEC 61000-4-5 | 2 kV behavior criterion 2 |
| due to conductor-conductor surge / acc. to IEC 61000-4-5 | 1 kV behavior criterion 2 |
| due to high-frequency radiation / acc. to IEC 61000-4-6 | 140 dBuV in the frequency range 0.15 ... 80 MHz, behavior criterion 1 |
| Electrostatic discharge / acc. to IEC 61000-4-2 | 4 kV contact discharging / 8 kV air discharging, behavior criterion 2 |
| Conducted HF-interference emissions / acc. to CISPR11 | Class A for industrial environment |
| Field-bound HF-interference emission / acc. to CISPR11 | Class B for the domestic, business and commercial environments |
