Eaton ER4X-400J3PR Rotary Disconnect - NEMA 4X
Part Number: ER4X-400J3PR
Quick Summary
Eaton ER4X-400J3PR Rotary Disconnect isolates 600 V circuits in industrial control panels. When downtime and safety risk margins matter, you need a compact, dependable solution that minimizes exposure and simplifies maintenance. This unit carries a CE mark and a NEMA 4X enclosure rating, with fuse type J compatibility to support fast, safe isolation in harsh environments. Designed for seamless integration with Eaton Bussmann protection schemes, it helps you consolidate components, meet regulatory requirements, and reduce total cost of ownership through rugged construction and straightforward field service.
Product Information
Extended Description
ER4X-400J3PR Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Fuse type J, Pistol handle, 600V, 400A, Red, NEMA rating 4X
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER4X-400J3PR
UPC
051712416078
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
Fuse type J, Pistol handle
ER4X-400J3PR~ENC DISC400J NEMA4XSS RED
ER4X-400J3PR~ENC DISC400J NEMA4XSS RED
Eaton Specification Sheet - ER4X-400J3PR
Feature: 400 A amperage rating enables robust load handling and reduces the number of devices required in high-current applications → Business Impact: lowers panel complexity and installation costs while improving fault tolerance → Application: motor control centers and power distribution panels in harsh industrial environments. Feature: 600 V voltage rating provides broad compatibility with typical industrial feeders and drives → Business Impact: simplifies spec compliance and procurement, reducing design risk → Application: panel enclosures for manufacturing and process industries. Feature: NEMA 4X enclosure rating delivers weatherproof, corrosion-resistant protection → Business Impact: enhances uptime in outdoor or wash-down settings, lowering maintenance spikes → Application: outdoor switchgear enclosures and process lines. Feature: Fuse type J compatibility supports fast, selective isolation without compromising safety → Business Impact: minimizes arc flash exposure and short-circuit downtime, improving maintenance efficiency → Application: protection schemes alongside Bussmann series fuses. Feature: Pistol handle design enables quick, secure operation even with gloved hands → Business Impact: accelerates shutdown and startup sequences, boosting productivity → Application: routine safety interlocks and emergency shutdowns. Feature: CE marking confirms compliance with European safety standards → Business Impact: expands deployment possibilities across global facilities, reducing regulatory barriers → Application: multinational production lines seeking standardized protective devices. Feature: Compact form factor and straightforward mounting support easy integration into existing control cabinets → Business Impact: reduces retrofit complexity and overall total cost of ownership → Application: upgrades to aging protection systems in automation lines.
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FAQs
For installation, ensure a rated enclosure matches the NEMA 4X requirement and provide secure mounting within compliant control panels. Verify conductor sizing and lugs align with 400 A rating, and confirm compatible Bussmann fuse type J accessories are installed to enable proper isolation and safe maintenance.
Yes. The ER4X-400J3PR is designed for Fuse type J compatibility, enabling fast, reliable isolation when paired with Bussmann protection devices. This compatibility simplifies protection schemes and supports coordinated fault response, reducing downtime and arc flash exposure during maintenance.
This device is ideal for industrial control panels, motor control centers, and process lines requiring 600 V isolation and 400 A capacity. Its NEMA 4X enclosure protects against moisture and corrosion, making it suitable for indoor and outdoor installations in manufacturing, energy, and water treatment facilities.
ER4X-400J3PR carries CE marking and a NEMA 4X enclosure rating, confirming compliance with European safety standards and protection against elements in harsh environments. These certifications support global deployment and regulatory alignment for safety-critical isolation devices.
The rugged construction and straightforward field service reduce upkeep time and spare-parts inventory. By combining isolation, protection, and compatibility with Bussmann fuses, it lowers total cost of ownership, minimizes unplanned downtime, and accelerates safety-compliant shutdowns during routine maintenance.