Switch disconnector for distribution, 1600 A AC-23A
The Schneider Electric ENW24216 is a 4-pole switch disconnector from the EasyPact NW series, rated for 1600 A in AC-23A utilization category at 690 V AC. The drawout mounting (withdrawal) lets you rack the unit out for inspection or replacement without disturbing the main bus connections, which matters in switchgear where downtime for panel access is the constraint. Rated insulation voltage is 1000 V AC, with an impulse withstand of 12 kV per IEC 60947-3. The short-time withstand current is 66 kA for 1 s, and the making capacity hits 143 kA peak — numbers that tell you this disconnector lives in a high-fault-capacity distribution board, not a light-duty panel.
Drawout chassis mounts on a rail (mounting support: rail), with rear connection points at a 115 mm pitch without spreader. The neutral position is left, and connection orientation accepts both vertical and horizontal bus arrangements. Panel cutout planning: width 556 mm, height 439 mm, depth 395 mm — that depth is the through-panel envelope, so verify the cabinet depth clears the rear connection hardware before committing the gland plate. Mechanical durability is 20,000 cycles with maintenance, 10,000 without; electrical endurance at 440 V AC is 6,000 cycles under AC-23A duty.