Eaton ER4-800L3PB Enclosed Rotary Disconnect - NEMA 4
Part Number: ER4-800L3PB
Quick Summary
ER4-800L3PB is an enclosed rotary disconnect switch for safe isolation in industrial electrical systems. We know engineers and procurement teams wrestle with weather exposure, dust ingress, and crowded control panels when selecting a disconnect. The product carries CE marking and a NEMA 4 enclosure rating, signaling compliance and rugged protection in demanding environments. For reliability and lifecycle economics, the design minimizes maintenance overhead and supports fast, safe installation across retrofit or new-build projects. By combining heavy-duty performance with practical installability, this model helps you meet safety standards while preserving uptime and reducing total cost of ownership.
Product Information
Extended Description
ER4-800L3PB Eaton: Eaton Bussmann series enclosed rotary disconnect switch, fuse type L, Pistol handle, 600V, 800A, Black, NEMA rating 4
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER4-800L3PB
UPC
051712416375
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
800A
NEMA rating
NEMA 4
Voltage rating
600 V
Special features
fuse type L, Pistol handle
ER4-800L3PB~ENC DISC800L NEMA4 BLK
ER4-800L3PB~ENC DISC800L NEMA4 BLK
Eaton Specification Sheet - ER4-800L3PB
Feature: Enclosed rotary disconnect switch delivers robust protection in a single unit. Business Impact: Enclosure helps prevent dust, water ingress, and corrosion, reducing fault exposure and safeguarding personnel. Application: Ideal for outdoor panels, washdown areas, and harsh industrial spaces where reliable isolation is critical. Feature: Fuse type L integrated provides protective coordination for feeders and motors, reducing arc flash risk and motor burnouts. Application: Suitable for motor control centers and main feeders in manufacturing lines. Feature: Pistol handle enables ergonomic, one-handed operation even in tight enclosures, improving operator safety and reducing fatigue. Application: Field installs and retrofit projects where compact space is a constraint. Feature: 600 V and 800 A ratings support high-current isolation without multiple devices, simplifying panel design and reducing part count. Application: Main disconnects for large motors, presses, or processing equipment. Feature: CE marking confirms regulatory compliance across many international markets, enabling easier cross-border deployments. Application: Global manufacturing operations and integrator projects seeking standardization. Feature: Approximate 19 lb weight aids handling during installation and maintenance, improving on-site productivity. Application: Retrofit in existing switchgear or new installation where ease of handling matters.
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FAQs
The ER4-800L3PB is designed as an enclosed, wall- or panel-mounted rotary disconnect with a pistol-style handle for straightforward operation. Ensure enclosure front clearance for safe manual actuation and observe standard electrical clearances per your panel design. The unit’s NEMA 4 protection supports installation in dusty or wet environments, reducing ingress concerns during retrofit or new-build deployments. Wiring should follow the fuse type L specification and rating (600 V, 800 A), with proper torque on terminations to maintain reliability over time.
Yes. The ER4-800L3PB features a NEMA 4 enclosure rating, which provides protection against dust and water ingress suitable for outdoor or washdown conditions. Coupled with CE marking, this makes it a robust choice for harsh industrial spaces, where reliable isolation and safety are critical even under challenging environmental exposure.
Key safety features include a rugged enclosed rotary disconnect with a pistol handle for controlled operation, along with a fuse type L that supports proper protection coordination. Compliance is evidenced by CE marking, indicating conformity with European standards and facilitating international deployment in compliant facilities. The NEMA 4 enclosure further enhances safety by maintaining environmental integrity around the switching apparatus.
By consolidating isolation, fuse protection, and weatherproofing into a single unit, the ER4-800L3PB reduces the number of components and installation steps. This minimizes maintenance labor, lowers replacement part counts, and shortens downtime during switchgear maintenance or changes in configuration. Its rugged 600 V, 800 A rating supports higher-load applications without needing multiple standalone switches, delivering a faster return on investment through improved reliability and reduced warranty issues.
The ER4-800L3PB uses fuse type L for protection coordination and is designed for integration with Bussmann series protections where applicable. Its enclosure and handle design support straightforward retrofit into existing switchgear and new installations alike. For compatibility, review the catalog and datasheet (ER4-800L3PB) to confirm mounting, wiring, and interlock requirements, and verify CE compliance for your specific region.