Warom HRMD91-100A-4L Explosion Proof Industrial Power Distribution Panel

HRMD91-100A-4L: Likely indicates main incoming current 100A with 4 outgoing circuits (default low current rating).

The HRMD91-100A-4L Explosion Proof Industrial Power Distribution Panel represents a more compact and focused solution within the product family. It's designed for specific, smaller-scale applications within a hazardous area.

Let's break down its specifications and typical uses.

Overall Purpose

This is a 100-Amp Explosion-Proof Distribution Panel with 4 output circuits. Its job is to take a single incoming power feed and provide four protected and isolated circuits for equipment in a classified hazardous location. It's a point-of-use distribution unit for a smaller cluster of devices.

Breakdown of the Model Number

HRMD91: The manufacturer's base series or model number. This confirms it's built to the same fundamental safety standards and design principles as the larger models in the HRMD91 family, just in a smaller form factor.

100A: The main incoming current rating. This panel is designed for a maximum continuous current of 100 Amps. This is a common rating for feeding a specific machine, a small group of devices, or a dedicated area.

4L: Indicates the number of outgoing circuits.

4 = Four individual output circuits.

L = Stands for "Line" or "Circuit."

Key Features and Design

Compact Explosion-Proof Enclosure: The housing will be significantly smaller and lighter than the 250A+ models, but it still maintains all critical explosion-proof features:

Flame Paths: Precision-machined joints to cool explosion flames.

Robust Construction: Likely made from cast aluminum alloy or steel.

Sealed Conduit Entries: Certified cable glands or threaded entries to maintain integrity.

Internal Components:

Main Disconnect: A 100A main switch or circuit breaker.

Busbars: Smaller copper bars to distribute power to the four branch devices.

4 Branch Protection Devices: These could be fuses or Miniature Circuit Breakers (MCBs). The base model number does not specify, so this is a key option to select during ordering.

Termination Blocks: For the incoming and outgoing wiring.

The Missing Suffixes: What They Mean

Like some other models, this code lacks specific suffixes. This means:

Protection Type Not Specified: The -MCB suffix is absent. Therefore, the branch protection could be supplied as either fuses or circuit breakers. This is a crucial decision point based on the need for easy resetting (MCBs) versus lower cost (fuses).

Material Not Specified: The -SS (Stainless Steel) or -VI (Corrosion Protected) suffix is absent. The standard material is likely painted cast aluminum or steel, suitable for general industrial environments without severe corrosion. A harsher environment would require an upgraded material to be specified.

Certification Not Specified: The -ExdIICT6 suffix is absent. The panel will have a default explosion rating (likely suitable for common gases like Propane), but for the most volatile atmospheres, the higher certification must be explicitly requested.

A full purchase specification would look like: HRMD91-100A-4L-MCB-SS-ExdIICT6, specifying breakers, stainless steel, and a high-level gas rating.