GenInterlock EAT-PN200

Need help?

Do you have a question about the GenInterlock EAT-PN200 and is the answer not in the manual?

Summary

Safety and Warnings

Panel Box Safety Precautions

Critical safety warning for qualified personnel working on panel boxes and adhering to electrical codes.

Installation Procedure

Step 1: Initial Preparation

Disassemble the interlock and mark holes on the panel cover.

Steps 2-4: Panel Cover Modification

Drill holes as marked, install bottom plate, and attach the slotted top plate.

Steps 5-6: Breaker and Tie Installation

Install the generator breaker and secure breakers using zip ties.

Step 7: Operation Verification

Re-install panel cover and verify proper interlock operation.

Step 8: Final Placement

Place generator start-up and caution labels on the panel box.

Disclaimer

Responsibility for Use

States GenInterlock.com is not responsible for misuse or improper installation.

The GenInterlock EAT-PN200 is a mechanical interlock device designed to prevent the simultaneous operation of a main breaker and a generator breaker in an electrical panel, ensuring safe power transfer. This device is specifically compatible with Cutler Hammer BR Series and CH Series circuit breakers, including those with Plug-in Neutral, rated for 150 & 200 Amps.

Function Description:

The primary function of the EAT-PN200 interlock is to enforce a critical safety rule: either the main power source or the generator power source can be active, but never both at the same time. This is achieved through a mechanical sliding plate mechanism that physically blocks one breaker from being switched on if the other is already in the ON position. The interlock ensures that when the main breaker is ON, the generator breaker cannot be turned on, and vice-versa. This prevents backfeeding of utility lines, which can be extremely dangerous for utility workers and can damage electrical equipment. The device is designed for a single-handle horizontal throw (left for ON, right for OFF) and requires a spacing of 1½ - 1½ inches between the main breaker and the branch breakers. It is installed on the top right side of the panel, occupying two positions.

Important Technical Specifications:

Model: EAT-PN200
Compatibility: Cutler Hammer BR Series, BR series with Plug-in Neutral, and CH series with Plug-in Neutral 150 & 200 Amp circuit breakers.
Breaker Type: 150 & 200 amp single handle horizontal throw (left for ON, right for OFF).
Spacing Requirement: 1½ - 1½ inches spacing between the main breaker and branch breakers.
Installation Location: Top right side, occupying two positions in the panel.

Usage Features:

The EAT-PN200 is designed for straightforward installation and operation, though it emphasizes that only qualified personnel should handle the installation and any work inside the panel box.

Safety First: The core usage feature is the enforced safety mechanism, preventing simultaneous operation of main and generator power.
Clear Indication: The interlock's physical movement provides a clear visual and tactile indication of which breaker can be operated.
Generator Breaker Placement: A 2-pole generator breaker is installed on the top right side of the panel.
Warning Labels: The kit includes a "Generator Warning Sticker" to be placed on the generator breaker and a "Warning label" to be placed next to the release tab on the zip tie at the generator breaker, ensuring users are aware of the generator's presence and operational guidelines. A "Generator start-up procedure label" and a "CAUTION label" are also to be placed on the panel box and electric meter pan, respectively, to guide safe operation.
Zip Tie Management: Zip ties are used to secure wiring around the top set of breakers, ensuring a tidy and safe internal panel environment.

Maintenance Features:

While the manual doesn't detail specific maintenance for the interlock device itself, it outlines critical safety and operational checks that serve as maintenance guidelines:

Installation Verification (Step 7): After installation, it is crucial to re-install the panel cover and verify the proper operation of the interlock. This involves checking that:
- When the main breaker is ON, the generator breaker is OFF and CANNOT be turned on.
- When the generator breaker is ON, the main breaker is OFF and CANNOT be turned on.
Continuous Monitoring (Step 8): The manual explicitly states: "The MAIN and the GENERATOR breakers should NEVER be able to be turned on at the same time." This serves as a continuous operational check.
Immediate Action for Malfunction: If the panel cover is removed, the generator breaker should NEVER be able to be turned on. If for any reason the interlock does not function properly, users are instructed to "DO NOT USE and contact us immediately at sales@GenInterlock.com for support and instructions." This highlights a critical maintenance and safety protocol: if the device fails, it must be taken out of service and professional help sought.
Qualified Personnel Requirement: The manual strongly emphasizes that "Only qualified personnel should be working on the panel box" and "An amateur should NEVER open the panel box." This is a key maintenance feature, as it dictates that any inspection, repair, or adjustment must be performed by trained professionals, adhering to all rules and regulations of the National Electric Code.
Disclaimer on Misuse: The disclaimer states that GenInterlock.com is not responsible for misuse or improper installation, and all electrical equipment should be installed and maintained by qualified personnel. This reinforces the importance of professional maintenance and installation to ensure the device's longevity and safe operation.

In summary, the EAT-PN200 is a vital safety device for electrical panels with generator backup, designed to be robust and reliable when installed and maintained by qualified personnel according to the provided instructions and national electrical codes. Its primary benefit is preventing hazardous conditions arising from improper power source switching.