Eaton P3BMDL800LSIG Circuit Breaker - 65 kAIC
Part Number: P3BMDL800LSIG
Quick Summary
Eaton P3BMDL800LSIG is a Pow-R-Way III circuit breaker plug-in unit designed for busway protection in industrial power distribution. Engineers often face long install times and safety concerns when integrating high-current busway segments, and this unit helps streamline mounting and electrical protection. It carries IEEE Certified, UL 857, and CSA Certified marks, along with NEMA compliance, providing robust regulatory alignment in harsh environments. With an 800 A rating and MDL plug-in design, it delivers scalable protection while reducing wiring complexity and speeding commissioning across multiple switchgear layouts.
Product Information
Extended Description
P3BMDL800LSIG Eaton: Eaton Pow-R-Way III circuit breaker plug-in unit, With LSIG, Busway, Three-pole, MDL, Plug, Breaker, M Frame (300-800 A), 800A, 65 kAIC at 240 Vac, 50 kAIC at 480 Vac, 25 kAIC at 600 Vac, None, 50% Internal Ground
Product Name
Eaton Pow-R-Way III circuit breaker plug-in unit
Catalog Number
P3BMDL800LSIG
UPC
786685424156
Product Length/Depth
19.65 in
Product Height
45.89 in
Product Width
10.15 in
Product Weight
136 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Compliances
NEMA Compliant
Certifications
IEEE Certified ANSI UL 857 CSA Certified
Circuit Breaker Frame
M
Design
Pow-R-Way III
Grounding Options
50% Internal
Number Of Poles
Three-pole
Type
Breaker
Amperage Rating
800A
Interrupt rating
65 kAIC at 240 Vac, 50 kAIC at 480 Vac, 25 kAIC at 600 Vac
Application
Busway
Product Category
Plug
Special features
With LSIG
The three-pole, M-frame Pow-R-Way III design enables high-current distribution in compact footprints, accelerating installation and saving valuable floor space in manufacturing lines. This translates to measurable business impact: higher throughput with reliable fault protection, reduced joint resistance, and lower maintenance overhead when servicing busway connections in busy plants. The unit’s 800 A amperage rating supports large, continuous loads typical of distribution feeders, while its 65 kAIC interrupt rating at 240 Vac (and 50 kAIC at 480 Vac, 25 kAIC at 600 Vac) minimizes arc energy during faults, helping protect personnel and equipment. LSIG features simplify wiring and improve fault isolation in dense switchgear assemblies, enabling faster troubleshooting and safer commissioning. Compatibility with MDL plug-in configurations and the M-frame design reduces field modifications and accelerates retrofit projects. Trust in industry standards—NEMA, IEEE, UL 857, and CSA certifications—while enjoying a straightforward spare-part strategy and predictable lifecycle costs.
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FAQs
The P3BMDL800LSIG uses a plug-in MDL design interfacing with M-frame busway configurations, enabling straightforward mounting and secure electrical connections. This compatibility minimizes field wiring, reduces installation time, and supports scalable expansion where busway sections are added or relocated, freeing up valuable floor space in busy facilities.
Key specs include an 800 A amperage rating, three-pole design, and interrupt ratings of 65 kAIC at 240 Vac, 50 kAIC at 480 Vac, and 25 kAIC at 600 Vac. Grounding is 50% internal, with MDL plug-in options suitable for the M-frame. These specs support high-load busway feeders while maintaining robust fault protection.
The unit carries IEEE Certified, ANSI UL 857, and CSA Certified markings, and it is NEMA compliant. These certifications assure safety, reliability, and regulatory alignment across diverse industrial environments, including manufacturing and data centers.
Best for busway distribution in industrial plants, manufacturing lines, and data centers requiring reliable high-current protection. Its LSIG feature and MDL plug-in capability make it ideal for rapid deployment in retrofit projects and scalable feeder layouts, while maintaining service continuity during expansion.
Warranty is Eaton’s policy 25-000: one year from installation or eighteen months from shipment, whichever comes first. Regular inspections of connections and busway interfaces, along with validated spare parts, help sustain performance and minimize downtime in critical power paths.