Mersen MPDB67491 310A 1-pole Power Distribution Block

Product Description

The MERSEN MPDB67491 is a single-pole, open-style power distribution block rated for 310 amps and 600 VAC. Built with tin-plated aluminum construction, it is designed to split a primary power feed into multiple secondary circuits within panel assemblies, enclosures, or switchgear. The block accommodates a conductor range from 500 kcmil down to 10 AWG on the line side and supports up to 18 secondary openings, making it suitable for high-density wiring applications. Licensed electricians performing panel work and industrial control wiring will find this block suited to fixed junction and tap-off configurations where reliable, low-resistance termination is required.

This distribution block is used in residential and commercial panel assemblies, industrial control cabinets, and motor control centers where a single primary conductor must be distributed across multiple branch circuits. Its open-style design allows straightforward inspection and access to termination points during installation and maintenance. Typical applications include cable splicing, splitting primary power into secondary circuits, and establishing fixed junction tap-off points in box-to-box wiring configurations.

Key Features

• Single-pole open-style design rated 310 amps at 600 VAC for high-current distribution applications
• Tin-plated aluminum body supports 1,000-volt UL 1953 listing and resists corrosion at termination points
• Accepts conductor range from 500 kcmil down to 10 AWG, accommodating a wide variety of wire sizes
• Up to 18 secondary circuit openings in a box-to-box connection configuration
• UL Listed (File E352417), CSA Certified (Class 6228 01), and RoHS Compliant

Compatibility

Designed as an open-style power distribution block per UL 1953 for use in panel assemblies, industrial enclosures, and control cabinets requiring single-pole, high-ampacity distribution. No specific system or model compatibility was stated in the product data.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and any applicable local codes. De-energize and lock out the panel or enclosure before making any terminations. Verify that conductor sizes fall within the rated range before torquing terminals. Do not exceed the 310-amp continuous rating or install in environments where the voltage exceeds 600 VAC.