Siemens 3RB3143-4UB0 S3, ELECTRONIC OVERLOAD RELAY FOR motor protection.
Siemens 3RB3143-4UB0 S3, ELECTRONIC OVERLOAD RELAY FOR motor protection.
| Manufacturer part number (MPN) | 3RB3143-4UB0 EAN / GTIN: 4047621011912 Sales unit: pcs Product brand name: SIRIUS Product designation: solid-state overload relay Product type designation: 3RB3 Size of overload relay: S3 Size of contactor can be combined company-specific: S3 Power loss [W] for rated value of the current at AC in hot operating state: 0.9 W Insulation voltage with degree of pollution 3 at AC rated value: 1 000 V Surge voltage resistance rated value: 8 kV Shock resistance according to IEC 60068-2-27: 15 g / 11 ms Vibration resistance: 1 … 6 Hz, 15 mm; 6 … 500 Hz, 20 m/s²; 10 cycles Thermal current: 50 A Recovery time after overload trip with automatic reset typical: 3 min General technical data — Net Weight: 570 g Installation altitude at height above sea level maximum: 2 000 m Ambient temperature during operation: -25 ... +60 °C Ambient temperature during storage: -40 ... +80 °C Relative humidity during operation: 10 ... 95 % Number of poles for main current circuit: 3 Adjustable current response value current of the current-dependent overload release: 12.5 ... 50 A Operating voltage rated value: 1 000 V Operating frequency rated value: 50 ... 60 Hz Operational current rated value: 50 A Operating power for 3-phase motors at 400 V at 50 Hz: 7.5 ... 22 kW Operating power for AC motors at 500 V at 50 Hz: 11 ... 30 kW Operating power for AC motors at 690 V at 50 Hz: 11 ... 45 kW Design of the auxiliary switch: integrated Number of NC contacts for auxiliary contacts: 1 Number of NO contacts for auxiliary contacts: 1 Operational current of auxiliary contacts at AC-15 at 230 V: 3 A Trip class: CLASS 5E, 10E, 20E and 30E adjustable Design of the overload release: electronic Response value current of the grounding protection minimum: 0.75 x IMotor Response time of the grounding protection in settled state: 1 000 ms Full-load current (FLA) for 3-phase AC motor at 480 V rated value: 50 A Full-load current (FLA) for 3-phase AC motor at 600 V rated value: 50 A Contact rating of auxiliary contacts according to UL: B600 / R300 Design of the fuse link for short-circuit protection of the main circuit with type of coordination 2 required: gG: 200 A Mounting position: any Fastening method: Contactor mounting Installation/ mounting/ dimensions — height: 106 mm Installation/ mounting/ dimensions — width: 70 mm Installation/ mounting/ dimensions — depth: 124 mm Type of electrical connection for main current circuit: screw-type terminals Tightening torque for main contacts with screw-type terminals: 4.5 ... 6 N·m Protection class IP on the front according to IEC 60529: IP20 Touch protection on the front according to IEC 60529: finger-safe, for vertical contact from the front Display version for switching status: Slide switch Mounting method: Direct attachment Width: 70 mm Height: 106 mm Depth: 124 mm Number of auxiliary contacts as normally open contact: 1 Number of auxiliary contacts as normally closed contact: 1 Release class: Adjustable Type of electrical connection of main circuit: Screw connection Reset function input: Yes Reset function automatic: Yes Country of origin: Czechia |
| MOQ | 1 |