Abb TL30420R Mlo Load Center 200A 30-circuit 3P4W

Product Description

The ABB TL30420R is a main lug only (MLO) load center rated for 200 amps in a 30-circuit, 3-phase, 4-wire configuration. MLO load centers are designed for installations where a main disconnect is provided upstream, such as at a meter base or a separate disconnect enclosure. This unit accepts branch circuit breakers to distribute power across multiple circuits and is typically installed by licensed electricians in commercial, multi-family, or light industrial applications where a 3-phase distribution panel is required.

This load center is suited for 3-phase power distribution in applications such as commercial tenant spaces, light industrial facilities, and multi-family residential buildings where the utility or upstream equipment provides the main shutoff. The MLO design keeps the enclosure compact and allows flexible integration into larger electrical distribution systems. Electricians working in these environments will find the 30-circuit capacity adequate for moderate branch circuit loads in a single distribution point.

Key Features

• Main lug only design requires upstream disconnect — suitable for subpanel and downstream distribution applications
• 200-amp main lug rating supports substantial branch circuit loads in 3-phase systems
• 30-circuit capacity provides ample space for branch circuit breaker installation
• 3-phase, 4-wire (3P4W) configuration supports both line-to-line and line-to-neutral loads

Compatibility

Designed as an OEM-style MLO load center for 3-phase, 4-wire electrical distribution systems requiring a 200-amp, 30-circuit panelboard with no integral main breaker.

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 the upstream feeder and verify absence of voltage at the line lugs before beginning any wiring work. Because this is an MLO unit, a listed main disconnect must be installed upstream to provide overcurrent protection for the panel feeder conductors. Verify conductor sizing, lug torque requirements, and enclosure grounding per the manufacturer installation instructions and NEC Article 408.

Technical Specifications

• Main Amperage Rating: 200A
• Number of Circuits: 30
• Phase Configuration: 3-Phase, 4-Wire (3P4W)
• Panel Type: Main Lug Only (MLO)
• UPC: 78316419018

Standard Information

• Brand: ABB
• Manufacturer Part Number: TL30420R