Eaton ER4X-030CF3PR Enclosed Rotary Disconnect Switch - NEMA 4X
Part Number: ER4X-030CF3PR
Quick Summary
ER4X-030CF3PR enclosed rotary disconnect switch from Eaton provides reliable isolation for industrial electrical panels. A common maintenance challenge is accidental re-energization during service, which this unit helps prevent with a pistol-style handle and a Class CF fuse configuration. It carries UL 98 and cULus listings and is housed in a rugged NEMA 4X enclosure, rated for 600 V and 30 A. For motor control centers, distribution panels, and service disconnects in harsh environments, this switch delivers consistent safety, fast isolation, and a clear path to compliant maintenance, reducing downtime and inventory complexity.
Product Information
Extended Description
ER4X-030CF3PR Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Fuse type CF, Pistol handle, 600V, 30A, Three-pole, 50/60 Hz, Red, Class CF, NEMA rating 4X - ER4X-030CF3PR
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER4X-030CF3PR
UPC
051712746809
Product Length/Depth
9.84 in
Product Height
8.91 in
Product Width
7.87 in
Product Weight
2.5 lb
Compliances
cULus Listed
Certifications
UL 98 cULus Pending
Amperage Rating
30A
Frequency rating
50/60 Hz
NEMA rating
NEMA 4X
Voltage rating
600 V
Fuse configuration
Class CF
Special features
Fuse type CF, Pistol handle
Bussmann series complete full line catalog no. 1007
Bussmann series complete full line catalog no. 1007
Eaton Specification Sheet - ER4X-030CF3PR
The device integrates a Class CF fuse configuration, enabling coordinated protection for three-phase circuits while reducing component count. This translates to simpler maintenance, lower inventory costs, and faster fault isolation in industrial panels and motor control centers. The pistol-style handle enhances operator safety and minimizes switching time, which improves lockout/tagout efficiency and reduces exposure during servicing. With a 600 V, 30 A rating and 50/60 Hz compatibility, it fits standard industrial drives and control circuits, delivering reliable performance without oversizing equipment. The NEMA 4X enclosure provides robust environmental protection, enabling outdoor and washdown installations while maintaining enclosure integrity and safety. The three-pole design ensures complete three-phase isolation, supporting safe motor starting and protection in MCCs and process lines. Comprehensive documentation and compatibility with Bussmann CF fuses streamline procurement and field installation, reducing project lead times and ensuring regulatory alignment.
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FAQs
ER4X-030CF3PR is designed for NEMA 4X enclosures, making it suitable for indoor or protected outdoor installations. Its 3-pole design and pistol handle provide straightforward mounting in standard electrical panels or MCCs. When planning integration, verify enclosure dimensions (9.84 in depth, 8.91 in height, 7.87 in width) and ensure compatible CF fuse carrying capacity for safe, compliant operation.
The unit is rated for 600 V and 30 A, operates at 50/60 Hz, and uses a Class CF fuse configuration for coordinated protection. This combination supports reliable fault isolation in three-phase circuits, and aligns with Bussmann CF fuse usage. For installation planning, confirm panel duty cycles and ensure compatibility with existing Bussmann series fuses.
Yes. The ER4X-030CF3PR utilizes a NEMA 4X enclosure designed to withstand washdown, splash, and corrosion-prone environments. This makes it a strong choice for outdoor substations, industrial plants, and production lines where moisture or cleaning processes are present. The rugged construction helps minimize corrosion-related downtime and reduces maintenance frequency, improving overall equipment availability.
This model carries UL 98 listing and cULus listing (with cULus pending), indicating compliance with recognized safety standards for disconnect switches. These certifications support regulatory acceptance in North American facilities and help streamline safety audits. Coupled with a 600 V/30 A rating and NEMA 4X enclosure, it provides a clear path to compliant installation in many industrial environments.
The integrated Class CF fuse configuration and pistol handle reduce maintenance time and risk during servicing, while providing fast, reliable isolation. With fewer parts to manage and compatible with Bussmann CF fuses, spare parts stocking is simplified. The rugged enclosure and high rating minimize unplanned downtime, contributing to lower total cost of ownership and improved plant uptime over the switch’s service life.