| SEMIC. CONTACTOR 3-PH. 3RF2 AC53 3.8A 40 DEGREES C 48-480V / 24V DC REVERSING CIRCUIT INST. CIRCUIT SCREW TERMINAL |
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General technical data: |
product brand name | | SIRIUS |
product designation | | solid-state reversing contactor |
Product function | | reversing switch |
Number of poles / for main current circuit | | 3 |
Protection class IP | | IP20 |
Ambient temperature | | |
| °C | -25… +60 |
| °C | -55… +80 |
Installation altitude / at a height over sea level / maximum | m | 1,000 |
Resistance against vibration / according to IEC 60068-2-6 | | 2g |
Resistance against shock / according to IEC 60068-2-27 | | 15g / 11 ms |
Item designation | | |
- according to DIN 40719 extendable after IEC 204-2 / according to IEC 750
| | K |
- according to DIN EN 61346-2
| | Q |
Number of NC contacts / for auxiliary contacts | | 0 |
Number of NO contacts / for auxiliary contacts | | 0 |
Number of change-over switches / for auxiliary contacts | | 0 |
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Main circuit: |
Number of NO contacts / for main contacts | | 2 |
Number of NC contacts / for main contacts | | 0 |
Operating current / at AC-3 / at 400 V / rated value | A | 3.8 |
Reverse current / of the thyristor | mA | 10 |
Derating temperature | °C | 40 |
Operating current / minimum | mA | 500 |
Resistance against the impulse current / rated value | A | 600 |
I2t-level / maximum | A²·s | 1,800 |
Service power / at AC-3 / at 400 V / rated value | kW | 1.5 |
Operating voltage | | |
- at 50 Hz / at AC / rated value
| V | 48… 480 |
- at 60 Hz / at AC / rated value
| V | 48… 480 |
Working area related to the operating voltage | | |
| V | 40… 506 |
| V | 40… 506 |
Operating frequency | | |
| Hz | 50… 60 |
Relative symmetrical tolerance / of the operation frequency | % | 10 |
Insulation voltage / rated value | V | 600 |
Voltage slew rate / at the thyristor / for main contacts / maximum permissible | V/µs | 1,000 |
Block voltage / at the thyristor / for main contacts / maximum permissible | V | 1,200 |
Fuse assignments | | https://www.automation.siemens.com/cd-static/material/info/3RF24_eng.pdf |
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Control circuit: |
Type of voltage / of the controlled supply voltage | | DC |
Control supply voltage / 1 | | |
| V | 15… 24 |
Control supply voltage / for DC / final value for signal<0>-recognition | V | 5 |
Tolerance of the line frequency | Hz | 5 |
Control current | | |
- at minimum control supply voltage / for DC
| mA | 2 |
| mA | 15 |
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Installation/mounting/dimensions: |
Type of mounting | | screw and snap-on mounting onto 35 mm standard mounting rail |
Type of fixing/fixation / series installation | | Yes |
Design of the thread / of the screw for fastening of the operating resource | | M4 |
Tightening torque / of the screw for fastening of the operating resource | N·m | 1.5 |
Width | mm | 45 |
Height | mm | 95 |
Depth | mm | 114.3 |
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Connections: |
Design of the electrical connection / for main current circuit | | screw-type terminals |
Design of the thread / of the connection screw / for main contacts | | M4 |
Tightening torque / for main contacts | | |
- with screw-type terminals
| N·m | 2… 2.5 |
Tightening torque (lbf·in) / for main contacts | | |
- with screw-type terminals
| lbf·in | 18… 22 |
Type of the connectable conductor cross-section | | |
| | |
| | 2x (1.5 ... 2.5 mm²), 2x (2.5 ... 6 mm²) |
| | |
- with conductor end processing
| | 2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²), 1x 10 mm² |
| | |
| | 2x (14 ... 10) |
- for auxiliary and control contacts
| | 1x (AWG 20 ... 12) |
- for auxiliary and control contacts
| | |
| | 1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.0 mm²) |
| | |
- with conductor end processing
| | 1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.0 mm²) |
- without conductor final cutting
| | 1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.0 mm²) |
Conductor cross section that can be connected | | |
| | |
| mm² | 1.5… 6 |
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