The LV847271 is a MasterPact MTZ2 10 HA10 switch disconnector rated 1000 A at 1150 V AC, 50/60 Hz, in a 4-pole fixed-mount configuration. It is designed for distribution applications per EN/IEC 60947-3, with a making capacity of 105 kA peak at 1150 V AC and a short-time withstand of 50 kA for 1 s or 3 s. The HA10 performance level indicates a high-endurance duty class suited for frequent switching of motor loads (AC-3) and mixed resistive-inductive loads (AC-23A).
The 1000 A continuous rating at 1150 V AC sets the thermal capacity for a main feeder or large motor circuit. The AC-23A / AC-3 utilisation categories mean it handles the inrush of motors and mixed loads without derating — AC-23A covers occasional switching of motors and other highly inductive loads, while AC-3 covers frequent motor starting. The 105 kA peak making capacity (Icm) and 50 kA short-time withstand (Icw) for 1 s or 3 s define the fault-closing and fault-withstand capability; this switch disconnector can close onto a bolted fault and hold the let-through until an upstream breaker clears, which is critical for selective coordination in a distribution panel. The 12 kV rated impulse withstand voltage (Uimp) and insulation voltage of 1250 V AC confirm the part is suitable for 1000 V class systems with typical surge levels. The isolation function is certified per EN/IEC 60947-3, with a visible contact position indicator and a push-button control. The 25 000 mechanical cycles with periodic preventive maintenance and 500 electrical cycles at 1150 V AC (AC-23A) set the service life; for high-cycle motor-starting applications, plan maintenance intervals around the electrical endurance figure.
Deployment context
Fixed-mount chassis with a 115 mm connection pitch and overall dimensions of 537 mm wide × 352 mm high × 300 mm deep. The 4-pole configuration (3 phases + neutral) suits three-phase distribution with a switched neutral, common in North American and IEC panel designs.