Eaton ER4X-400N3PB Enclosed Rotary Disconnect Switch - NEMA 4X
Part Number: ER4X-400N3PB
Quick Summary
ER4X-400N3PB enclosed rotary disconnect switch provides safe isolation for electrical circuits in industrial panels and power distribution. Operators often face unscheduled downtime and safety risks when selecting isolation devices for harsh environments. This Eaton solution is CE Marked and built to a NEMA 4X enclosure, rated for 600 V and 400 A, delivering reliable performance under demanding conditions. By aligning with Bussmann series protection strategies, it supports compliant installations, faster maintenance, and lower lifecycle costs for manufacturers and panel builders. Despite its rugged capability, the unit features a compact footprint and a pistol handle design that simplifies safe operation during service and lockout/tagout procedures.
Product Information
Extended Description
ER4X-400N3PB Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Pistol handle, 600V, 400A, Black, NEMA rating 4X
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER4X-400N3PB
UPC
051712420297
Product Length/Depth
0.1 in
Product Height
0.1 in
Product Width
0.1 in
Product Weight
0.1 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
400A
NEMA rating
NEMA 4X
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 - ER4X-400N3PB
Feature: Non-fused, pistol-handle design simplifies isolation and reduces fuse handling, lowering arc-flash risk during maintenance. Business Impact: safer lockout/tagout procedures and shorter outage windows. Application: service disconnects in industrial panels and process lines where quick, safe isolation is critical. Feature: 400 A amperage and 600 V rating provide robust control for high-load circuits. Business Impact: enables single-point isolation of critical feeders without oversizing components, improving panel footprint and lifecycle costs. Application: main disconnects on machine lines and power distribution zones in manufacturing facilities. Feature: NEMA 4X enclosure protects against water, dust, and corrosion. Business Impact: reduces maintenance visits in outdoor or wash-down environments, extending uptime. Application: outdoor cabinets, wash-down areas, and other harsh environments requiring reliable isolation. Feature: Enclosed Bussmann series construction with compact footprint (0.1 in depth, 0.1 in height, 0.1 in width; 0.1 lb weight). Business Impact: enables easy integration in tight control panels and retrofits with minimal cabinet alteration. Application: retrofit projects and new builds with space constraints. Feature: CE compliance ensures global market acceptance and regulatory alignment. Business Impact: simplifies audits and cross-border installations, accelerating design-in and deployment. Application: multinational manufacturing sites and OEM projects seeking consistent protection across facilities.
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FAQs
ER4X-400N3PB is designed as an enclosed, non-fused rotary disconnect with a pistol handle, rated for 400 A at 600 V and a NEMA 4X enclosure. It integrates with Bussmann series protection schemes and standard panel cutouts, simplifying replacement or retrofits. Verify mounting hardware, clearance, and available enclosure space to ensure seamless installation and service accessibility.
Key specs include a 400 A amperage rating, 600 V voltage rating, NEMA 4X enclosure, non-fused construction, and a pistol handle. The compact physical footprint supports tight panel layouts, while CE compliance ensures regulatory alignment. These specs enable safe, reliable isolation of high-load feeders in industrial control environments.
Yes. The ER4X-400N3PB features a NEMA 4X enclosure, which offers protection against water, dust, and corrosion, suitable for outdoor installations and wash-down areas. Its CE marking further supports regulatory compliance in diverse environments. This makes it a robust choice for factories, outdoor equipment enclosures, and harsh industrial settings.
CE marking demonstrates compliance with European safety, health, and environmental requirements, easing cross-border approvals. The NEMA 4X enclosure provides enhanced protection against elements and corrosion, reducing maintenance frequency and downtime. Together, they lower compliance risk and support reliable operation in challenging industrial environments.
The non-fused design reduces spare parts and fuse handling, lowering long-term maintenance costs. The pistol handle eases safe operation and reduces lockout/tagout time, improving workforce productivity. Combined with a rugged enclosure and CE/NEMA 4X features, the solution minimizes downtime and extends equipment life, delivering tangible total cost of ownership benefits for OEMs and maintenance teams.