DESCRIZIONE PRODOTTO
SCHNEIDER ELECTRIC VW3A9912 - External Braking Resistor
The SCHNEIDER ELECTRIC VW3A9912 is an external braking resistor designed for integration with Altivar Process ATV900 series variable speed drives. This component facilitates the dissipation of regenerative energy generated by high-inertia loads during deceleration, preventing overvoltage conditions on the drive's DC bus. It is critical for applications requiring controlled stopping, rapid deceleration, or vertical axis control in industrial machinery, material handling systems, and lifting equipment.
Technical Specifications:
- SERIES/FAMILY: Altivar Process ATV900 Series Accessory
- COMPONENT TYPE: External Braking Resistor
- ELECTRICAL SPECS:
- RESISTANCE: 12 Ohms
- CONTINUOUS POWER DISSIPATION: 1200 W
- PEAK POWER DISSIPATION: 12000 W (for 5 seconds)
- VOLTAGE COMPATIBILITY: Designed for use with 400V to 690V class Altivar Process drives
- MECHANICAL/PHYSICAL:
- FORM FACTOR: Enclosed resistor unit
- THERMAL MANAGEMENT: Natural convection cooling
- MOUNTING: Panel or wall mountable via integrated brackets
- INTERFACE/CONTROL:
- CONNECTION: Two-wire connection to drive braking terminals (PB, PBe)
- FEEDBACK: N/A (passive component)
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (for internal panel mounting)
- COOLING METHOD: Natural convection
- MOUNTING STYLE: Vertical or horizontal panel mounting
- COMPATIBILITY/APPLICATION:
- COMPATIBLE DRIVES: SCHNEIDER ELECTRIC Altivar Process ATV900 series variable speed drives
- APPLICATIONS: Conveyors, cranes, hoists, centrifuges, test benches, and other industrial applications requiring dynamic braking of high inertia loads