Abb tl42420c Main Lug Load Center 200A 42 Circuit 3-phase

Product Description

The ABB tl42420c is a main lug only (MLO) load center rated at 200 amps for 3-phase, 4-wire, 208Y/120V AC service. It accommodates up to 42 one-inch breaker spaces using plug-in style branch circuit breakers and is suitable for use as a main distribution panel or sub-panel depending on the installation configuration. The enclosure is rated NEMA 1 for indoor use and is listed for combination flush or surface mounting. All ABB load centers in this series are rated for 60 degrees C and 75 degrees C conductors and are suitable for use with service entrance equipment when installed in accordance with applicable electrical code. Licensed electricians handle installation of this equipment.

The tl42420c is intended for commercial and residential electrical distribution applications where 3-phase, 4-wire power at 208Y/120V is required. Its main lug configuration makes it well suited as a sub-panel fed from a separate upstream disconnect or as a primary distribution point where an external disconnect is already in place. The combination enclosure type supports flexible mounting in new construction or retrofit scenarios. The unit accepts feed from either end, adding flexibility during rough-in.

Key Features

• 200A bus ampere rating for 3-phase, 4-wire, 208Y/120V AC service
• 42 one-inch breaker spaces with plug-in circuit breaker style
• Main lug only (MLO) configuration — requires upstream overcurrent protection
• Either-end feed capability for installation flexibility
• NEMA 1 indoor-rated combination enclosure with door included
• 65 kA interrupting capacity rating on branch circuits below 250A
• Rated for 60 degrees C and 75 degrees C conductor terminations

Compatibility

Designed for use with plug-in style branch circuit breakers in 3-phase, 4-wire, 208Y/120V AC distribution systems. Suitable for service entrance applications when installed per applicable electrical code. No factory-installed ground bar kit is included; a ground kit may need to be added separately depending on the installation.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize all upstream supply conductors before working inside the enclosure. This unit is main lug only and requires a properly rated upstream disconnect and overcurrent protective device. Do not install in wet or outdoor locations — this enclosure carries a NEMA 1 indoor rating only.

Technical Specifications

• Amperage: 200A
• Phase: 3 Phase
• Wires: 4 Wire
• Input/Output Voltage: 208Y/120V AC
• Total Breaker Spaces: 42 (one-inch spacing)
• Circuit Breaker Style: Plug-In
• Device Type: Main Lug Only (MLO)
• Interrupting Capacity Rating: 65 kA (branch circuits below 250A)
• Enclosure Type: Indoor, Combination
• NEMA Rating: NEMA 1
• Door: Yes
• Feed Direction: Either
• Factory Installed Ground Kit: No
• Load Center Type: Standard

Standard Information

• Brand: ABB
• Manufacturer Part Number: tl42420c