Eaton ER4-30J3PB Enclosed Rotary Disconnect - NEMA 4
Part Number: ER4-30J3PB
Quick Summary
ER4-30J3PB is an enclosed rotary disconnect switch for safe isolation in electrical panels and enclosures. Maintenance downtime and accidental energization are ongoing challenges in control systems, and this switch helps prevent them. CE Marked, NEMA 4-rated housing protects against dust, water ingress, and corrosive environments, while the rugged 600 V/30 A rating supports industrial workloads. The pistol-style handle and fuse-type J construction streamline servicing, minimizing tool requirements and maintenance time. Designed for CE compliance and rugged field use, it fits into standard protection schemes and supports safer, faster commissioning for panel builders and OEMs. In practice, engineers report smoother integration with motor control circuits and easier spare parts planning.
Product Information
Extended Description
ER4-30J3PB Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Fuse type J, Pistol handle, 600V, 30A, Black, NEMA rating 4
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER4-30J3PB
UPC
051712415538
Product Length/Depth
15.5 in
Product Height
12.4 in
Product Width
13.7 in
Product Weight
19 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
30A
NEMA rating
NEMA 4
Voltage rating
600 V
Special features
Fuse type J, Pistol handle
ER4-30J3PB~ENC DISC30J NEMA4 BLK
ER4-30J3PB~ENC DISC30J NEMA4 BLK
Eaton Specification Sheet - ER4-30J3PB
ER4-30J3PB delivers a combination of rugged protection and practical operability that translates into tangible business outcomes. Feature → Business Impact → Application: Enclosed NEMA 4 housing provides reliable protection against dust, water, and corrosion, reducing ingress-related faults in harsh environments and enabling safe isolation in outdoor or damp locations. This supports longer service intervals and lower maintenance costs for manufacturing lines and processing equipment. Feature → Pistol-style handle with fuse-type J construction enables quick, lockable operation and straightforward servicing, minimizing downtime during routine checks or emergencies; ideal for panel builders implementing compliant isolation routines in electrical protection & circuit control systems. Feature → 600 V, 30 A electrical rating ensures compatibility with common industrial loads, delivering predictable performance for machine isolation in control panels and machine rooms. Feature → Compact footprint (15.5 in L, 12.4 in H, 13.7 in W) and 19 lb weight ease installation in standard enclosures and retrofit projects, reducing cabinet crowding and simplifying spare parts logistics. Feature → CE Marked compliance and Bussmann series lineage provide assurance for global customers, enabling broader deployment across facilities that require strict safety and regulatory alignment.
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FAQs
ER4-30J3PB is designed for standard enclosure integration with its compact 15.5 in length, 12.4 in height, and 13.7 in width. Ensure mounting in a protected area within the enclosure, observe proper clearance for handle operation, and secure the unit to match the cabinet’s mounting pattern. Use appropriate wiring practices for 600 V circuits and confirm CE compliance during commissioning.
The switch operates at 600 V and 30 A, with a NEMA 4 enclosure rating. It uses fuse-type J actuation and a pistol-style handle for safe operation. CE Marking confirms conformity with European safety standards. These specs support reliable isolation and protection in industrial control panels and rugged environments.
Yes. The enclosed rotary disconnect provides a clear, lockable isolation point for machines on production lines. Its NEMA 4 housing withstands harsh conditions, and the 600 V/30 A rating aligns with typical industrial loads. The pistol handle enables fast, controlled operator action, facilitating safer changeovers and maintenance without compromising line safety.
ER4-30J3PB is CE Marked, indicating compliance with applicable European safety requirements. The NEMA 4 enclosure rating provides ingress protection suitable for indoor and outdoor installations. This combination supports global deployment in facilities that require formal safety and environmental standards for electrical protection and circuit control components.
The rugged construction and straightforward servicing reduce maintenance downtime and spare parts complexity. By delivering reliable isolation with a user-friendly pistol handle, technicians complete resets and tests faster, lowering labor costs. The CE and NEMA 4 protections minimize unexpected outages, supporting higher equipment availability and a favorable total cost of ownership for panels and line equipment.