| Monitoring relay, can be mounted to Contactor 3RT2, Size S0 basic, analog adjustment Apparent current monitoring 4...40 A, 50...60 Hz, 2-phase Supply 24 V AC/DC 1 change-over contact Monitoring for Current overshoot and undershoot Phase failure, Cable break with or without fault buffer ON delay 0-60 s Noise pulse suppression 0-30 s Switching hysteresis 6% spring-type connection system |
| Product brand name | SIRIUS |
| Product designation | Monitoring relays |
| Design of the product | analogically adjustable, 2-phase current monitoring |
| Product type designation | 3RR2 |
| General technical data |
| Size of contactor can be combined company-specific | S0 |
| Operating apparent output rated value | 4 V·A |
| Insulation voltage | |
| for overvoltage category III according to IEC 60664 | |
| — with degree of pollution 3 rated value | 690 V |
| Surge voltage resistance rated value | 6 kV |
| Protection class IP | |
| on the front | IP20 |
| of the terminal | IP20 |
| Shock resistance | 15g / 11 ms |
| Mechanical service life (switching cycles) | |
| typical | 10 000 000 |
| Electrical endurance (switching cycles) | |
| at AC-15 at 230 V typical | 100 000 |
| 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 | K |
| Reference code acc. to DIN EN 61346-2 | K |
| Relative repeat accuracy | 2 % |
| Supply voltage |
| Type of voltage of the supply voltage | AC/DC |
| Supply voltage 1 at AC | |
| at 50 Hz rated value | 24 V |
| at 60 Hz rated value | 24 V |
| Supply voltage 1 at DC rated value | 24 V |
| Supply voltage frequency | |
| 1 | 50 ... 60 Hz |
| Measuring circuit |
| Type of current for monitoring | AC |
| Adjustable pick-up value current | |
| 1 | 4 ... 40 A |
| 2 | 4 ... 40 A |
| Adjustable response delay time | |
| when starting | 0 ... 60 s |
| with lower or upper limit violation | 0 ... 30 s |
| Precision |
| Temperature drift per °C | 0.1 %/°C |
| Communication/ Protocol |
| Protocol is supported | |
| IO-Link protocol | No |
| Type of voltage supply via input/output link master | No |
| Auxiliary circuit |
| Number of CO contacts | |
| for auxiliary contacts | 1 |
| Operating current of auxiliary contacts at AC-15 | |
| at 24 V | 3 A |
| at 230 V | 3 A |
| at 400 V | 3 A |
| Operating current of auxiliary contacts at DC-13 | |
| at 24 V | 1 A |
| at 125 V | 0.2 A |
| at 250 V | 0.1 A |
| Contact rating of auxiliary contacts according to UL | B300 / R300 |
| Main circuit |
| Operating power | |
| rated value | 2.5 W |
| Outputs |
| Operating current at 17 V minimum | 5 mA |
| Electromagnetic compatibility |
| EMC emitted interference | |
| acc. to IEC 60947-1 | ambience A (industrial sector) |
| EMI immunity | |
| acc. to IEC 60947-1 | ambience A (industrial sector) |
| Safety related data |
| Protection against electrical shock | finger-safe |
| Connections/Terminals |
| Product function | |
| removable terminal for main circuit | No |
| removable terminal for auxiliary and control circuit | Yes |
| Type of electrical connection | |
| for main current circuit | spring-loaded terminals |
| for auxiliary and control current circuit | spring-loaded terminals |
| Type of connectable conductor cross-sections | |
| for main contacts | |
| — solid | 1x (1 ... 10 mm²) |
| — finely stranded with core end processing | 1x (1 ... 6 mm²) |
| — finely stranded without core end processing | 1x (1 ... 6 mm²) |
| at AWG conductors for main contacts | 1x (18 ... 8) |
| Connectable conductor cross-section for main contacts | |
| single or multi-stranded | 1 ... 10 mm² |
| finely stranded with core end processing | 1 ... 6 mm² |
| finely stranded without core end processing | 1 ... 6 mm² |
| Type of connectable conductor cross-sections | |
| for auxiliary contacts | |
| — solid | 1x (0.5 ... 4 mm²), 2x (0.5 ... 2.5 mm²) |
| — finely stranded with core end processing | 2x (0.25 ... 1.5 mm²) |
| — finely stranded without core end processing | 2x (0.25 ... 1.5 mm²) |
| at AWG conductors for auxiliary contacts | 2x (24 ... 16) |
| AWG number as coded connectable conductor cross section | |
| for main contacts | 18 ... 8 |
| Tightening torque | |
| with screw-type terminals | 0.8 ... 1.2 N·m |
| Installation/ mounting/ dimensions |
| Mounting position | any |
| Mounting type | direct mounting |
| Height | 109 mm |
| Width | 45 mm |
| Depth | 92 mm |
| Required spacing | |
| with side-by-side mounting | |
| — forwards | 0 mm |
| — Backwards | 0 mm |
| — upwards | 0 mm |
| — downwards | 0 mm |
| — at the side | 0 mm |
| for grounded parts | |
| — forwards | 6 mm |
| — Backwards | 0 mm |
| — upwards | 6 mm |
| — at the side | 6 mm |
| — downwards | 6 mm |
| for live parts | |
| — forwards | 6 mm |
| — Backwards | 0 mm |
| — upwards | 6 mm |
| — downwards | 6 mm |
| — at the side | 6 mm |
| Ambient conditions |
| Installation altitude at height above sea level | |
| maximum | 2 000 m |
| Ambient temperature | |
| during operation | -25 ... +60 °C |
| during storage | -40 ... +80 °C |
