Eaton ER4-800L3PR Enclosed Rotary Disconnect - NEMA 4
Part Number: ER4-800L3PR
Quick Summary
ER4-800L3PR enclosed rotary disconnect switch provides reliable isolation for electrical protection panels and industrial circuits. Engineers often struggle with finding a rugged, compliant disconnect that is easy to install and service in demanding environments. It is CE marked and built to NEMA 4 enclosure standards, with a 600 V rating and 800 A capacity to support high-demand machinery safely. This Eaton Bussmann series device delivers proven durability, sealed construction, and a pistol handle for one-handed operation, reducing maintenance time and crew exposure. By combining robust protection with straightforward installation, it enables faster commissioning, easier compliance checks, and improved uptime across critical processes.
Product Information
Extended Description
ER4-800L3PR Eaton: Eaton Bussmann series enclosed rotary disconnect switch, fuse type L, Pistol handle, 600V, 800A, Red, NEMA rating 4
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER4-800L3PR
UPC
051712416382
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
19 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
800A
NEMA rating
NEMA 4
Voltage rating
600 V
Special features
fuse type L, Pistol handle
ER4-800L3PR~ENC DISC800L NEMA4 RED
ER4-800L3PR~ENC DISC800L NEMA4 RED
Eaton Specification Sheet - ER4-800L3PR
Feature: Enclosed rotary disconnect switch design provides safe, high-current isolation in compact footprints. Business Impact: The NEMA 4 enclosure resists dust and water ingress, reducing maintenance downtime and extending service intervals. Application: Ideal for motor control centers, process lines, and protection panels across manufacturing and utilities. Feature: Fuse type L internal protection and pistol handle for one-handed operation. Business Impact: Improves operator safety and enables quicker, safer cycling during maintenance windows, lowering exposure and time-to-isolation. Application: Suitable for heavy-duty loads in harsh environments and retrofit projects. Feature: CE marking and compatibility with Eaton Bussmann series protection devices. Business Impact: Streamlines regulatory compliance and simplifies integration into existing electrical protection schemes, reducing audit risk. Application: Use in European and global installations requiring CE compliance and standard protection architectures. Feature: Sealed construction and rugged materials for outdoor and dirty environments. Business Impact: Extends service life, lowers maintenance costs, and reduces unplanned outages. Application: Process plants, mining sites, and outdoor switchgear.
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FAQs
ER4-800L3PR is designed for enclosed systems in industrial control panels. It mounts in standard enclosures with NEMA 4-rated protection, supports up to 600 V and 800 A, uses fuse type L, and has a pistol-style handle for one-handed operation. Confirm chassis clearances and busbar width for proper fit in your specific application.
ER4-800L3PR provides a NEMA 4 compliant enclosure suitable for indoor/outdoor service, with sealed seams and gasketed construction to resist dust and water ingress. The 600 V rating and 800 A capacity support heavy-duty switching in motor control centers and protection panels, while the pistol handle enables safe, one-handed operation under load.
Yes. With an 800 A amperage rating and a 600 V maximum, the ER4-800L3PR is designed for high-current isolation in motor drives, presses, and process lines. Its enclosed design protects internal fuses (type L) and switching contacts, reducing arc exposure and improving operator safety while complying with CE and NEMA 4 standards.
The product is CE marked and rated NEMA 4 for severe environments, supporting compliance with EU safety directives and industrial installation standards. This reduces customer risk in audits and enables installation across European and other markets where NEMA 4 protection is required. The datasheet and catalogs provide traceability and help procurement teams verify compatibility with existing electrical protection strategies.
ER4-800L3PR reduces maintenance cycles through robust construction and sealed enclosure, lowering dust ingress and corrosion risk. Its 800 A rating minimizes fuse changes and downtime during peak loads, while CE/NEMA 4 compliance streamlines compliance costs and reduces audit findings. Typical ROI stems from reduced spare parts, faster service, and longer intervals between inspections.