Description

The Allen-Bradley 1503VC-BMC4 is an IntelliVAC contactor control module engineered for medium-voltage vacuum contactor applications. As a core component of the Bulletin 1503VC IntelliVAC family, this module provides a scalable, reliable solution for managing Bulletin 1502 vacuum contactors rated at 400 A and 800 A, supporting systems up to 7,200 volts. It features universal input voltage compatibility, allowing for deployment across diverse global power infrastructures without the need for voltage-specific hardware variants.

Features

• Universal supply voltage: 110–240V AC (50/60 Hz) or 110–250V DC.
• Consistent pick-up time performance across the entire rated voltage range.
• Selectable drop-out times (50–240 ms) for precise coordination with upstream power fuses.
• Integrated anti-kiss and anti-pumping protection to prevent rapid reclosure and contact bounce.
• DIP switch configurable control parameters for field adjustments without specialized software.
• Status indication via onboard LEDs and relay outputs for integration into higher-level control systems.
• Power loss ride-through (TDUV) capability.

Applications

• Mining and Minerals: Reliable control for crushers, conveyors, and ventilation fans in harsh, high-dust environments.
• Oil and Gas: Management of high-capacity pumps and compressors in extraction and refining operations.
• Water/Wastewater: Precise control for large-scale pumping stations requiring high uptime.
• HVAC and Infrastructure: Control for chillers and large air handlers in data centers and commercial facilities.
• Renewable Energy: Power conditioning and distribution for grid-scale energy projects.

Technical Specifications

Installation Guidelines

• Wiring: Requires a specific wire harness (Catalog No. 1503-WHxxx) to interface with the Bulletin 1502 vacuum contactor.
• Power Connection: Connect supply power to the designated "Main Input" terminals. Ensure correct polarity for DC applications.
• Configuration: Use the onboard DIP switches to set control parameters before applying power.
• Environment: Ensure the module is mounted in an enclosure suitable for the operating temperature and humidity ratings.
• Safety: Always disconnect all power sources before installing, removing, or performing maintenance on the module.

FAQ

What is the 1503VC-BMC4?
The 1503VC-BMC4 is a Bulletin 1503 IntelliVAC Contactor Control Module designed to control 400A and 800A vacuum contactors in medium-voltage motor controllers and feeders.

What contactors is it compatible with?
It is compatible with Bulletin 1502 400 A and 800 A vacuum contactors.

How does it improve system protection?
It provides selectable drop-out times, which allow for tighter coordination with upstream power fuses, improving overall system selectivity and protection.