Braking resistor for Altivar drives — obsolete, sourced to order
The VW3A7717 is a braking resistor from the Schneider Altivar range, rated 0.7 Ohm with an average power capability of 112 kW at 50 °C. It connects via M10 bar terminals and is protected to IP23 — suitable for indoor cabinet mounting where some airflow is present but direct spray is excluded. The resistor is paired with a thermal overload relay for over-temperature protection, which is the standard method to prevent resistor burnout during sustained deceleration cycles.
Lifecycle status — obsolete, no direct replacement listed
Schneider has classified the VW3A7717 as obsolete.
Physical footprint and integration notes
The resistor measures 1140 mm wide by 1150 mm high by 620 mm deep — a substantial unit that requires a dedicated floor-mount or heavy-duty wall bracket. The M10 bar connection is sized for the drive's DC bus cabling; torque to the drive manufacturer's specification for the lug size.