You've likely stumbled across something that was a deliberate design choice by GE for a specific reason back then. Here's a breakdown of the potential reasons, and why it's important to handle it carefully

Possible Purposes for the Bakelite Spacer:
Spacing and Isolation

Bakelite is an excellent insulator. The primary function might be to provide a specific amount of physical space or electrical isolation between the bus bar and the enclosure. This could have been done to:

Increase creepage distance

Creepage distance is the shortest path along the surface of an insulating material between two conductive parts. Increasing this distance makes it harder for current to arc across the surface, improving safety.

Prevent accidental contact

The spacer could prevent a metal component of the breaker from making unintended contact with the enclosure, which could become energized if the ground connection is poor.

Provide Structural Support

Depending on its shape and placement, the Bakelite might offer additional structural support to the bus bar itself, preventing flexing or movement that could compromise connections.

To prevent using the particular space in the load center. Some load centers were originally designed to use the specific location for a 2-pole breaker, and at a later date, the 2-pole breaker was no longer installed in that particular location, therefore the bakelite piece was used to prevent a single-pole breaker from being placed at that location. Original Breaker Limitations/Design Specifics

This is highly likely. Back in the day, GE (and other manufacturers) might have had specific limitations on the types or arrangement of breakers they intended for that particular load center. The spacer could have been a way to:

Prevent specific combinations

They may have wanted to avoid certain breaker sizes or configurations in that location due to internal wiring limitations, load balancing concerns, or UL testing requirements that are no longer relevant.

Code Compliance (Past)

Electrical codes change over time. A regulation that was in place 50 years ago might have dictated a certain spacing or isolation that the Bakelite spacer helped to achieve.

Why Not Just Prevent a Single Pole Breaker?

While preventing a single-pole breaker might be a consequence, it's unlikely to be the sole reason. It's far easier to design a bus bar that physically can't accept a single-pole breaker in that spot if that's the only goal.

Important Considerations



Don't Remove It

Unless you have a very compelling reason to remove the Bakelite spacer, and you're absolutely certain you understand its purpose and the potential consequences, leave it in place. Removing it could compromise the safety and proper functioning of the load center. It may have been added for a specific reason as previously discussed.

Upgrading Breakers? If you're considering upgrading breakers in the load center, consult with a qualified, licensed electrician. They can assess the condition of the existing load center, determine the original intent of the Bakelite spacer, and advise you on the best and safest way to proceed. They can determine if the Bakelite piece can safely be removed, or if you can use the adjacent spaces on the load center.* Load Center Replacement: Given the age of the load center, a complete replacement might be the safest and most cost-effective option in the long run. Modern load centers offer better safety features, higher capacity, and are designed to meet current code requirements.In summary, the Bakelite spacer in your old GE load center likely served a specific purpose related to spacing, isolation, breaker limitations, or historical code requirements. Consult with a qualified electrician before making any modifications. Flag for review