Built for heavy-duty industrial applications, the HLDB3600FT33W provides 600A of reliable circuit protection. It is part of Eaton's Series C L-Frame family. This unit-mount MCCB fits Eaton Series C panelboards and switchboards. It is supplied without terminals, allowing for customized lug configurations based on project needs. Equipped with a Digitrip 310+ electronic trip unit, it offers adjustable Long-Time and Short-Time (LS) protection alongside a 65 kAIC rating at 480V.
What enclosures are compatible with the HLDB3600FT33W?
This 600A unit is engineered for installation in Eaton Series C Panelboards, Switchboards, and Motor Control Centers configured to accept L-Frame circuit breakers.
Are line and load lugs included with this circuit breaker?
No, the HLDB3600FT33W is supplied from the factory without line or load terminals. Electricians must purchase lugs separately to match their specific wire gauge and conductor material.
What advantage does the electronic LS trip unit provide?
The solid-state electronic trip unit allows for adjustable Long-Time and Short-Time (LS) delay settings. This gives panel builders precise control over the breaker trip curve to ensure proper selective coordination with other devices in the electrical system.
What is the difference between an Eaton LD and HLDB breaker frame?
The H in the HLDB prefix designates it as the High Interrupting capacity version of the standard LD frame. The HLDB3600FT33W safely clears higher fault currents (up to 65kA at 480VAC) compared to standard L-Frame alternatives.
Can the HLDB3600FT33W be reverse fed in a panelboard?
Yes, standard Eaton Series C L-Frame electronic circuit breakers can safely be reverse fed. This makes the breaker suitable for use as a main disconnect or in dual-source applications where power feeds from the bottom.
What does the 33W signify in the HLDB3600FT33W catalog number?
The 33W suffix indicates that the breaker frame is factory-equipped with a Digitrip 310 (or RMS 310) solid-state electronic trip unit providing LS (Long-Time and Short-Time) protection functions.
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