Eaton ER4P-800N3PR Enclosed Rotary Disconnect Switch - NEMA 4P
Part Number: ER4P-800N3PR
Quick Summary
ER4P-800N3PR is an enclosed rotary disconnect switch designed to safely isolate heavy electrical circuits in industrial control panels. This solution addresses the common challenge of unreliable or exposed isolation in harsh environments by delivering a rugged, enclosure-protected design. Featuring CE marking and a NEMA 4P enclosure, it supports both indoor and outdoor installations with confidence. The non-fused construction and pistol-style handle simplify operation, reduce maintenance time, and lower the risk of inadvertent contact. Ideal for 600 V, 800 A circuit applications, this Eaton Bussmann series switch delivers reliable isolation for critical manufacturing and process control systems while aligning with modern safety and compliance requirements.
Product Information
Extended Description
ER4P-800N3PR Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Pistol handle, 600V, 800A, Red, NEMA rating 4P
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER4P-800N3PR
UPC
051712420884
Product Length/Depth
12 in
Product Height
12.25 in
Product Width
7.5 in
Product Weight
11.24 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
800A
NEMA rating
NEMA 4P
Voltage rating
600 V
Special features
Non-fused, Pistol handle
Bussmann series complete full line catalog no. 1007
Bussmann series complete full line catalog no. 1007
Eaton Specification Sheet - ER4P-800N3PR
Feature → Business Impact → Application: Non-fused construction minimizes fault current exposure and reduces spare parts inventory while simplifying upstream protection coordination in motor control and power distribution. This translates to lower maintenance costs and faster reset after changes or fault conditions in production lines. Feature → Business Impact → Application: 600 V, 800 A ratings provide a robust isolation solution for heavy-duty loads such as large motors and feeders, improving system reliability and safeguarding personnel during servicing in metalworking, plastics, and packaging environments. Feature → Business Impact → Application: Enclosed NEMA 4P design delivers weather resistance and washdown compatibility, enabling outdoor switchgear, wet plants, and outdoor MCC installations without enclosure upgrades. Feature → Business Impact → Application: Pistol handle operation offers intuitive, single-handed actuation even with gloved hands, reducing cycle time and operator error in high-demand switching tasks. Feature → Business Impact → Application: CE marking and Bussmann series lineage ensure compliance with European safety standards and proven performance in electrical protection networks, supporting audits and regulatory acceptance in food & beverage, automotive, and chemical processing facilities. Feature → Business Impact → Application: Compact footprint with 12 in L, 12.25 in H, and 7.5 in W enables easier panel integration and retrofits in space-constrained control rooms or MCCs, accelerating installation projects and reducing enclosure costs.
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FAQs
Begin by verifying enclosure compatibility with a 12 in length, 12.25 in height, and 7.5 in width footprint. Mount the switch per Eaton installation guidelines, connect input and load conductors to the appropriate lugs, secure the pistol handle mechanism, and confirm that the CE-marked unit is properly grounded. Use the non-fused configuration to simplify commissioning and minimize fault current exposure during maintenance.
600 V is the maximum continuous operating voltage the switch can safely disconnect, while 800 A is the maximum current it can interrupt in a fault or isolation operation. These ratings ensure reliable isolation for large motors and feeders in industrial environments, provided you select matching upstream protection devices and follow proper coordination practices.
Yes. The unit is designed with a NEMA 4P enclosure, which provides protection against dust, water ingress, and washdown conditions. This makes it suitable for outdoor installations, damp facilities, or locations with frequent cleaning, reducing the need for additional enclosure upgrades.
The ER4P-800N3PR carries CE Marking, indicating conformity with European safety standards. The NEMA 4P rating confirms the enclosure’s suitability for protected outdoor and washdown environments. These certifications support regulatory compliance, ease of cross-border procurement, and safer operation in multinational facilities.
Because this is a non-fused disconnect, maintenance focuses on mechanical operation integrity, contact alignment, and enclosure seals rather than fuse replacements. Regular functional checks, lubrication per Eaton guidelines, and enclosure integrity inspections help prevent unexpected downtime, optimize service intervals, and reduce total cost of ownership over the switch’s lifecycle.