| Overload relay 12.5...50 A For motor protection Size S3, Class 10 Contactor mounting Main circuit: Screw terminal Auxiliary circuit: Screw terminal Manual RESET !!! Phased-out product !!! Successor is SIRIUS 3RB3 Preferred successor type is >>3RB2046-1UB0<< |
| Product brand name | SIRIUS |
| Product designation | solid-state overload relay |
| General technical data |
| Size of contactor can be combined company-specific | S3 |
| Power loss [W] total typical | 0.05 W |
| Insulation voltage | |
| with degree of pollution 3 rated value | 1 000 V |
| Surge voltage resistance rated value | 8 kV |
| Protection class IP | |
| on the front | IP00 |
| Shock resistance | 15g / 11 ms |
| Type of protection | PTB 06 ATEX 3001 Ex II (2) GD |
| Reference code acc. to DIN EN 81346-2 | F |
| Ambient conditions |
| Installation altitude at height above sea level | |
| maximum | 2 000 m |
| Relative humidity during operation | 100 % |
| Main circuit |
| Number of poles for main current circuit | 3 |
| Adjustable pick-up value current of the current-dependent overload release | 12.5 ... 50 A |
| Operating voltage | |
| at AC-3 rated value maximum | 1 000 V |
| Auxiliary circuit |
| Number of NC contacts for auxiliary contacts | 1 |
| Number of NO contacts for auxiliary contacts | 1 |
| Number of CO contacts | |
| for auxiliary contacts | 0 |
| Operating current of auxiliary contacts at AC-15 | |
| at 24 V | 4 A |
| at 110 V | 4 A |
| at 120 V | 4 A |
| at 125 V | 4 A |
| at 230 V | 3 A |
| Operating current of auxiliary contacts at DC-13 | |
| at 24 V | 2 A |
| at 60 V | 0.55 A |
| at 110 V | 0.3 A |
| at 125 V | 0.3 A |
| at 220 V | 0.11 A |
| Protective and monitoring functions |
| Trip class | CLASS 10E |
| Short-circuit protection |
| Design of the fuse link | |
| for short-circuit protection of the auxiliary switch required | fuse gL/gG: 6 A |
| Installation/ mounting/ dimensions |
| Mounting position | any |
| Mounting type | Mounting contactor |
| Height | 106 mm |
| Width | 70 mm |
| Depth | 124 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 | 0 mm |
| — Backwards | 0 mm |
| — upwards | 0 mm |
| — at the side | 6 mm |
| — downwards | 0 mm |
| for live parts | |
| — forwards | 0 mm |
| — Backwards | 0 mm |
| — upwards | 0 mm |
| — downwards | 0 mm |
| — at the side | 6 mm |
| Connections/Terminals |
| Product function | |
| removable terminal for auxiliary and control circuit | Yes |
| Type of electrical connection | |
| for main current circuit | screw-type terminals |
| for auxiliary and control current circuit | screw-type terminals |
| Type of connectable conductor cross-sections | |
| for main contacts | |
| — solid | 2x (2.5 ... 16 mm²) |
| — stranded | 2x (10 ... 50 mm²), 10 ... 70 mm² |
| — finely stranded with core end processing | 2x (2.5 ... 35 mm²), 2.5 ... 50 mm² |
| at AWG conductors for main contacts | 2x (10 ... 1/0), 1x (10 ... 2/0) |
| Type of connectable conductor cross-sections | |
| for auxiliary contacts | |
| — solid | 0.5 ... 4 mm², 2x (0.5 ... 2.5 mm²) |
| — finely stranded with core end processing | 0.5 ... 2.5 mm², 2x (0.5 ... 1.5 mm²) |
| at AWG conductors for auxiliary contacts | 2x (20 ... 14) |
| Electromagnetic compatibility |
| Conducted interference | |
| due to burst acc. to IEC 61000-4-4 | 2 kV (power ports), 1 kV (signal ports) corresponds to degree of severity 3 |
| due to conductor-earth surge acc. to IEC 61000-4-5 | 2 kV (line to earth) corresponds to degree of severity 3 |
| due to conductor-conductor surge acc. to IEC 61000-4-5 | 1 kV (line to line) corresponds to degree of severity 3 |
| Field-bound parasitic coupling acc. to IEC 61000-4-3 | 10 V/m |
| Electrostatic discharge acc. to IEC 61000-4-2 | 6 kV contact discharge / 8 kV air discharge |
