Square D EHB34060 Molded Case Circuit Breaker

The EHB34060 is designed exclusively for legacy Square D NEHB series panelboards. Its specialized bolt-on mounting configuration is engineered for the NEHB bus structure and will not fit in modern NF panels or other Square D panelboard lines.

No. While the EDB series is the modern successor to the EHB line, it is engineered for Square D NF panelboards. Installing an EDB breaker would require a complete panelboard upgrade. To maintain an existing NEHB panel, you must use an EHB series breaker.

The bolt-on mounting design requires the breaker to be physically bolted to the NEHB panelboard busbars. This creates a secure, low-resistance electrical connection that will not vibrate loose over time, making it highly reliable for continuous commercial and industrial operations.

The LI designation means the breaker includes both Long-Time (L) and Instantaneous (I) trip functions. The thermal Long-Time element protects the circuit from sustained overloads, while the magnetic Instantaneous element trips immediately to clear severe short circuits.

Yes, this circuit breaker is HACR rated. It has been tested and certified to safely handle the high inrush currents and cycling demands associated with heating, air conditioning, and refrigeration motor loads.

This breaker features a highly visible Visi-Trip indicator. When a fault causes the breaker to trip, the handle snaps to a center position and a red indicator appears, allowing maintenance personnel to easily locate the tripped circuit in a crowded electrical panel.

Yes, the EHB series accommodates compatible handle padlocking attachments, such as the Square D HPAEH. This allows qualified personnel to lock the breaker handle firmly in the OFF position, ensuring compliance with OSHA lockout/tagout (LOTO) requirements.