Overview
The Allen-Bradley 140M-C-W453 compact busbar is a critical power distribution component engineered for three-phase motor control systems. This compact busbar is designed for three-phase motor circuit protectors, supporting a maximum continuous current of 64 amps. It connects three 140MT-C or 140MT-D motor circuit protectors spaced 45 mm apart, each equipped with front-mounted auxiliary contacts. This busbar simplifies the assembly of multi-component motor starters while maintaining reliable electrical connections in space-constrained control panels.
Key Features
- 3-Phase Design: 3-phase, 64 amp, 45 mm spacing, 3 connections configuration for coordinated power distribution across three circuit protectors
- Compact Form Factor: Features a space-saving design that allows for easier installation and integration in tight spaces
- Copper Construction: Crafted from durable copper, ensuring excellent conductivity and long-term performance
- Front-Mounted Auxiliary Contacts: Compatible with contactors and overload relays for complete three-component motor control assemblies
- Cost-Effective Conductor Design: Tap conductor design allows for the use of smaller conductors in grouped motor setups, which can help reduce overall wiring costs
Technical Specifications
- Current Rating: 64A maximum continuous current
- Phases: 3-Phase
- Spacing: 45mm (center-to-center) between three connections
- Number of Connections: 3 (for connecting three MPCBs)
- Material: Copper
- Weight: 0.10–0.15 lbs
- Design Standard: IEC-compliant motor protection integration
- Auxiliary Contact Type: Front-mounted
Typical Applications
This busbar is ideal for assembling three-component starters when used alongside contactors and overload relays. Common applications include:
- Industrial motor control panels and distribution centers
- Multi-motor production lines and conveyor systems
- Water treatment and HVAC pump motor circuits
- Food and beverage processing equipment
- Mining and heavy equipment motor circuits
- Renewable energy and variable speed drive installations
Compatibility & Replacements
The 140M-C-W453 busbar is specifically designed for the Allen-Bradley 140M and 140MT series motor circuit protectors. Specifically designed for use with Allen Bradley’s 140M series contactors, ensuring seamless integration with existing systems. Compatible frame sizes include C and D configurations. Alternative busbar options for different spacing or connection counts (such as the 140MT-C-W454 for 4-connection configurations) may be available for alternative starter layouts. For used surplus stock, Radwell and other authorized distributors provide tested inventory with warranty coverage.
