Eaton ER4-100J3PR Enclosed Rotary Disconnect - NEMA 4
Part Number: ER4-100J3PR
Quick Summary
The ER4-100J3PR enclosed rotary disconnect switch isolates power in electrical panels and machines. A common challenge is achieving fast, safe isolation without exposing operators to live circuits; this unit delivers a rugged, sealed solution for rapid disconnection. With CE marking and a NEMA 4 enclosure, it performs reliably in outdoor or washdown environments, while the 600 V and 100 A ratings cover typical industrial feeders. The pistol handle enables quick, controlled operation, reducing maintenance time and operator fatigue. Overall, this disconnect adds safety, reliability, and uptime to control panels and industrial equipment while aligning with industry standards.
Product Information
Extended Description
ER4-100J3PR Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Fuse type J, Pistol handle, 600V, 100A, Red, NEMA rating 4
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER4-100J3PR
UPC
051712415835
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
100A
NEMA rating
NEMA 4
Voltage rating
600 V
Special features
Fuse type J, Pistol handle
ER4-100J3PR~ENC DISC100J NEMA4 RED
ER4-100J3PR~ENC DISC100J NEMA4 RED
Eaton Specification Sheet - ER4-100J3PR
Feature: Enclosed rotary disconnect design with fuse type J and pistol handle. Business Impact: Provides safe isolation and reduces arc flash risk, enabling faster servicing with minimized downtime. Application: Ideal for control panels and machine enclosures in manufacturing facilities. Feature: 600 V, 100 A electrical rating. Business Impact: Supports common industrial feeders and prevents overrating, improving protection while avoiding unnecessary equipment replacement. Application: Suitable for medium‑scale machinery and power distribution blocks. Feature: NEMA 4 rated enclosure. Business Impact: Ensures weather, dust, and washdown resistance, enabling outdoor and damp environments without compromising safety. Application: Outdoor panels, washdown areas, and harsh indoor spaces. Feature: Fuse type J and pistol handle. Business Impact: Quick, predictable operation reduces cycle times and operator fatigue during routine maintenance and emergency isolation. Application: Routine control-system maintenance and emergency shutdowns. Feature: CE Marked and Bussmann series compatibility. Business Impact: Regulatory compliance and seamless integration with common fuses and components, reducing sourcing complexity and inventory costs. Application: OEM panel builds and retrofit projects across industrial sectors.
Get a Quick Quote for a Eaton ER4-100J3PR
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton ER4-100J3PR?
Enquire Now
FAQs
Install the ER4-100J3PR in a suitable enclosure, ensuring adequate clearance for the pistol handle and wiring access. Wire per the fuse type J specifications and adhere to standard control-circuit practices. Use proper torque on terminals and verify that the NEMA 4 rated enclosure remains sealed after installation to maintain ingress protection. This setup minimizes arc exposure and speeds maintenance tasks.
ER4-100J3PR is rated for 600 V and 100 A, with a NEMA 4 enclosure. It uses Fuse type J for protection and features a pistol-style handle for quick operation. Compatible with Eaton Bussmann series components and standard industrial panels, making it suitable for mid‑ to large‑sized control circuits and machine disconnects.
Yes. The NEMA 4 enclosure rating provides substantial protection against windblown dust, rain, and washdown conditions, enabling outdoor or wet environments to maintain safe operation. CE marking further supports compliance for industrial installations, while the rugged construction withstands routine maintenance in challenging facilities.
ER4-100J3PR is CE marked, indicating conformity with applicable European safety, health, and environmental requirements. Its NEMA 4 enclosure rating also signals suitability for weatherproof protection in harsh environments. While the data highlights these certifications, confirm any additional regional certifications required for your specific facility or country.
The pistol handle and quick‑operation design reduce maintenance cycle times and operator fatigue, contributing to faster disconnections during servicing. The robust, weather‑sealed enclosure lowers failure rates in harsh environments, reducing downtime and spare-part costs. Over time, this translates to improved uptime, safer isolation, and lower total cost of ownership for panel and machine applications.