Mersen MPDB69132 Power Distribution Block 620A 2 Pole

Product Description

The MERSEN MPDB69132 is a 2-pole, large-frame aluminum power distribution block rated at 620 amps. It is designed to split or combine power feeds within electrical panels, motor control centers, and industrial distribution equipment. The all-aluminum construction keeps weight manageable while supporting high-current applications. Electricians and electrical contractors install this component during panel builds, service upgrades, and industrial equipment assembly where a reliable, code-compliant distribution point is required at high ampacity.

This distribution block is suited for large commercial and industrial electrical installations where a single high-amperage feed must be distributed across multiple branch circuits or lugs. Its 2-pole configuration handles both legs of a standard single-phase or one phase of a three-phase system. The large frame size accommodates the heavy conductors typical of 600-amp-class service entrance and feeder work. It is listed under UL 1953, confirming it meets the standard for power distribution blocks used in enclosed electrical equipment.

Key Features

• 620-amp current rating supports heavy feeder and service entrance applications
• 2-pole configuration for single-phase or per-phase three-phase distribution
• Aluminum construction reduces weight while maintaining conductivity at high current levels
• Large frame accommodates heavy-gauge conductors common in 600-amp-class installations
• UL 1953 listed for use inside enclosed electrical equipment

Compatibility

Designed as an OEM-style replacement or new-installation power distribution block for large commercial and industrial electrical panels and motor control centers requiring a UL 1953 listed 2-pole aluminum block at 620 amps.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). De-energize and lock out the panel or enclosure before installing or servicing this block. Confirm conductor sizing and torque requirements using the manufacturer documentation supplied with the block, as proper torque on aluminum lugs is critical to prevent connection failure. Do not use aluminum conductors with incompatible terminations without approved anti-oxidant compound where required by the installation instructions.