| Special type Circuit breaker size S2 for motor protection CLASS 10 A-release 28...40 A Short-circuit release 520 A Screw terminal Standard switching capacity Ambient temperature -50 °C 500 switching cycles !!! Phased-out product !!! Successor is SIRIUS 3RV2 |
| Product brand name | SIRIUS |
| Product designation | circuit breaker |
| Design of the product | for motor protection |
| General technical data |
| Product extension | |
| Auxiliary switch | Yes |
| Power loss [W] total typical | 20 W |
| Surge voltage resistance rated value | 6 000 V |
| Protection class IP | |
| on the front | IP20 |
| Shock resistance | 25g / 11 ms |
| Mechanical service life (switching cycles) | |
| of the main contacts typical | 500 |
| Continuous current rated value | 40 A |
| Ambient conditions |
| Installation altitude at height above sea level | |
| maximum | 2 000 m |
| Main circuit |
| Number of poles for main current circuit | 3 |
| Adjustable pick-up value current of the current-dependent overload release | 28 ... 40 A |
| Operating voltage | |
| rated value | 690 V |
| at AC-3 rated value maximum | 690 V |
| Operating current | |
| at AC-3 | |
| — at 400 V rated value | 40 A |
| Operating power | |
| at AC-3 | |
| — at 400 V rated value | 18.5 kW |
| Operating frequency | |
| at AC-3 maximum | 15 1/h |
| Auxiliary circuit |
| Number of CO contacts | |
| for auxiliary contacts | 0 |
| Protective and monitoring functions |
| Product function | |
| Ground fault detection | No |
| Phase failure detection | Yes |
| Trip class | CLASS 10 |
| Maximum short-circuit current breaking capacity (Icu) | |
| at AC at 240 V rated value | 100 kA |
| at AC at 400 V rated value | 50 kA |
| at AC at 500 V rated value | 10 kA |
| at AC at 690 V rated value | 4 kA |
| Short-circuit protection |
| Design of the overcurrent release and short-circuit release | thermomagnetic |
| Installation/ mounting/ dimensions |
| Mounting position | any |
| Mounting type | screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022 |
| Height | 140 mm |
| Width | 55 mm |
| Depth | 149 mm |
| Required spacing | |
| with side-by-side mounting | |
| — Backwards | 0 mm |
| — at the side | 0 mm |
| Connections/Terminals |
| Product function | |
| removable terminal for auxiliary and control circuit | No |
| Type of electrical connection | |
| for main current circuit | screw-type terminals with box terminals |
| for auxiliary and control current circuit | screw-type terminals |
| Arrangement of electrical connectors for main current circuit | front side |
| Type of connectable conductor cross-sections | |
| for main contacts | |
| — solid | 2x (0.75 ... 16 mm²) |
| — stranded | 2x (0.75 ... 25 mm²), 1x (0.75 … 35 mm²) |
| — finely stranded with core end processing | 2x (0.75 ... 16 mm²), 0.75 ... 25 mm² |
| at AWG conductors for main contacts | 2x (18 ... 2), 1x (18 ... 2) |
