Part of the Mark 75 family, this 400A, 2-pole molded case circuit breaker is designed for commercial and industrial power distribution. It provides reliable thermal-magnetic protection for critical circuits up to 600VAC. Built to fit legacy Westinghouse and Eaton Pow-R-Line C panelboards, this panel-mount L-Frame unit serves as an exact replacement. If upgrading, note that this model is replaced by the newer HLD2400.
What panelboards are compatible with the HLA2400T circuit breaker?
The HLA2400T is designed for use in classic Westinghouse panelboards, Eaton Pow-R-Line C panelboards, and compatible switchboards that accept L-Frame breakers.
What does the Mark 75 designation mean on the HLA2400T?
The Mark 75 designation indicates that this Westinghouse breaker features a high interrupting capacity, specifically rated to safely clear fault currents up to 75kA at 240VAC.
What wire sizes are accepted by the lugs on the HLA2400T?
The standard lugs accept either one wire from 1 AWG to 600 kcmil, or two wires from 1 AWG to 250 kcmil. The terminals are rated for both aluminum and copper conductors.
Can the HLA2400T replace a standard LA2400 breaker?
Yes, the HLA2400T shares the same physical L-Frame dimensions as the standard LA2400 but offers a higher interrupting capacity. It can be used as a direct physical upgrade where higher fault protection is required.
How is the trip unit configured on this breaker?
The HLA2400T features a thermal magnetic trip unit with a fixed thermal element for long-time overload protection and an adjustable magnetic element for instantaneous short-circuit protection.
Is the HLA2400T rated for DC applications?
Yes, this breaker is rated for use in DC systems up to 250VDC, providing an interrupting capacity of 20kA.
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Customers rate this product 5.0 out of 5 based on 1 review.