Allen‑Bradley 1503VC-BMC5 IntelliVAC Medium Voltage Vacuum Contactor Control Module

Product Overview

Core Specifications

• Compatible Contactor: Bulletin 1502 vacuum contactors (400A / 800A, electrically held / mechanical latch)
• Universal Control Input Power: 110–240 VAC (47–63 Hz) / 110–250 VDC
• Current Ratings
  • AC Mode: Max 25A inrush; 11.3A close current; 300mA holding current
  • DC Mode: Max 25A inrush; 4.8A close current; 100mA holding current
• Command Inputs: 110–240VAC / 110–250VDC, 9mA max per input
• Status Relay Outputs: 250VAC / 30VDC, 5A resistive load; 2A inductive load (PF=0.4)
• Configurable Drop-out Delay: 50 / 75 / 100 / 130 / 160 / 200ms adjustable
• Operating Environment
  • Ambient Temp: 0°C ~ 60°C
  • Humidity: 5–95% non-condensing
  • Shock resistance: 15g peak, 11ms pulse
  • Altitude: -1000 ~ 5000 meters
• Mounting: Surface panel mounting via mounting holes
• Certifications: UL, CE industrial safety certified
• Weight: ~0.46kg

Main Functions

1. Intelligent Vacuum Contactor Coil Drive
    
   Output precision regulated close & hold voltage to vacuum contactor coils, stabilizing pull-in action and eliminating coil burnout risks caused by unstable control supply voltage.
2. Contactor Open/Close Logic Control
    
   Process START / STOP permissive signals from PLC or local pushbuttons to execute contactor closing and tripping; supports both 2-wire and 3-wire control wiring schemes.
3. Adjustable Anti-bounce Drop-out Timing
    
   Customizable contactor release delay to suppress arc reignition during medium-voltage motor shutdown, extending vacuum interrupter service life.
4. Full Fault Monitoring & Status Feedback
    
   Detect coil open-circuit, loss of control power, contactor failure; output dry contact status signals to PLC for remote monitoring and fault alarm interlock.
5. Integrated Surge Suppression
    
   Built-in MOV transient suppression to absorb coil inductive surge, protecting low-voltage control circuits and upstream PLC I/O modules.
6. Standardized Interface for Medium Voltage Cabinets
    
   Matches CENTERLINE medium voltage MCC architecture; supplied with dedicated wiring harness for direct connection to Bulletin 1502 contactor coils.

Key Advantages

• Universal wide-range AC/DC control power eliminates separate transformer design for global voltage standards.
• Integrated digital regulation ensures consistent contactor pull-in performance despite grid voltage fluctuations.
• All-in-one modular design reduces wiring volume, replacing bulky multi-relay traditional control panels.
• Rich diagnostic status outputs enable remote fault diagnosis via upper-level control systems.
• Tunable dropout timing optimizes arc suppression for medium voltage motor switching loads.
• Robust metal enclosure with heat dissipation vents adapts to high-temperature industrial power rooms.

Typical Applications