Eaton OLI365FWJA-00VP OEM Line Isolation Switch - UL Listed

Part Number: OLI365FWJB-0000
Manufacturer
Eaton
Part number
OLI365FWJB-0000

Quick Summary

Eaton OEM line isolation switch OLI365FWJA-00VP provides reliable isolation in industrial electrical panels. In many facilities, uptime and safety must co-exist, even in harsh environments where switches face corrosion or mechanical wear. This unit delivers UL Listed safety certification with a rugged NEMA 4X enclosure, constructed from 304 stainless steel to withstand washdown and chemicals. It supports Class J fusible protection and can operate Fusible without neutral for streamlined protection schemes. Designed for three-pole, three-wire three-phase systems rated at 400 A and 600 V, it offers durable, code-compliant isolation for main feeders and machine disconnects. The combination of rugged construction and integrated voltage monitoring translates into improved reliability and lower total cost of ownership across maintenance cycles.

Product Information

Extended Description

OLI365FWJB-0000 Eaton: Eaton OEM line isolation switch, 400 A, NEMA 4X, 304 stainless steel, Class J fusible, Fusible without neutral, Three-pole, Three-wire, 600 V, (2)#1/0-(2)300 kcmil; or (1)#1/0-(1)750 kcmil Cu/Al
Product Name
Eaton oem line isolation switch
Catalog Number
OLI365FWJB-0000
UPC
786676034753
Product Length/Depth
50.15 in
Product Height
9.24 in
Product Width
21.3 in
Product Weight
100 lb
Certifications
UL Listed
Enclosure
NEMA 4X
Enclosure material
304 stainless steel
Fuse configuration
Fusible without neutral
Number Of Poles
Three-pole
Number of wires
3
Type
OEM line isolation switch
Amperage Rating
400A
Fuse class provision
Class J fusible
Voltage rating
600 V
Rugged enclosure and material feature → Provides superior corrosion resistance and durability in washdown and chemical environments, reducing maintenance costs and downtime. Application: food, beverage, and chemical plants benefit from long service life and reduced enclosure-related failures. Business impact: fewer replacements and faster issue resolution, enabling continuous production. Integration and installation benefit → NEMA 4X rated enclosure in 304 stainless steel supports straightforward mounting in harsh plant areas; compatible with standard panel architectures, minimizing retrofit time. Application: aligns with existing electrical protection schemes and helps meettight facility standards. Three-pole, 3-wire design feature → Enables true three‑phase isolation with balanced fault handling, improving switchgear reliability. Business impact: safer shutdowns and easier coordination with upstream protections; Application: main feeders and machine disconnects. Fuse configuration and neutral strategy → Class J fusible protection with Fusible without neutral simplifies protection schemes while meeting code requirements. Application: simplifies panel wiring and reduces ballast components; Business impact: lowers installation complexity and maintenance overhead. Voltage rating and conductor compatibility → 600 V operation with flexible conductor sizing (2#1/0-(2)300 kcmil or (1)#1/0-(1)750 kcmil Cu/Al) supports diverse installation scenarios. Application: universal fit in OEM and retrofit projects; Business impact: expands job-ready applicability and reduces sourcing risk. Voltage portal feature → On-board monitoring capability streamlines fault detection and reduces troubleshooting time. Application: controls and service technicians benefit from quicker diagnostics; Business impact: faster mean time to repair and improved system availability.

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FAQs

Installation follows standard three-pole, three-wire practices for main feeders. The 400 A, 600 V OLI unit uses a NEMA 4X enclosure and 304 stainless steel body, enabling straightforward mounting in corrosive or washdown environments. Ensure clearance for the voltage portal and proper alignment with existing Class J fusible protection, and use the conductor sizing guidelines (2/0 to 300 kcmil or up to 750 kcmil for Cu/Al) to connect cables correctly.
The switch is rated for 400 A and 600 V, with fusible protection Class J and a Fusible without neutral configuration. Conductor options include 2/0 to 300 kcmil per leg or a mix of 1/0 to 750 kcmil copper/aluminum, enabling flexible installation choices across different feeders and service layouts while maintaining compliance with protective device requirements.
Yes, the OLI365FWJA-00VP carries UL Listed certification and uses a NEMA 4X enclosure constructed from 304 stainless steel, designed for washdown and chemical exposure. This makes it well-suited for industrial settings such as manufacturing floors, process plants, and outdoor installations where durability and safety are critical.
This switch is ideal for main feeder isolation and machine disconnects in three-phase power systems across industries like process, food and beverage, and chemical processing. Its voltage portal supports monitoring, while the rugged enclosure and Class J protection help meet stringent safety and reliability requirements in demanding environments.
By combining a durable NEMA 4X stainless steel enclosure with UL safety certification and straightforward wiring for three-phase systems, the unit reduces corrosion-related failures and simplifies installation. These features translate to reduced downtime, faster service, and lower total cost of ownership over the life of the switch and downstream equipment.