Eaton RDF400J-4 Fused Rotary Disconnect Switch - 600 Vac
Part Number: RDF400J-4
Quick Summary
The Eaton RDF400J-4 fused rotary disconnect switch safely isolates electrical circuits in industrial control panels and power distribution systems. Maintenance teams grapple with downtime and arc-flash risk; this device delivers reliable isolation with front or side handle operation. Its 400 A rating and 600 Vac / 250 Vdc capability, plus a -20 to 70 °C operating range (RoHS compliant), support dependable performance in harsh industrial environments. For buyers in electrical protection and circuit control, this switch offers installation ease, proven durability, and regulatory readiness across facilities. The inclusion of datasheets and catalogs simplifies procurement and specs alignment.
Product Information
Extended Description
RDF400J-4 Eaton: Eaton Bussmann series RDF fused rotary disconnect switch, Standard switch, Front/side handle operation, 600 Vac, 250 Vdc, 400A, Fused disconnect switch - RDF400J-4
Product Name
Eaton Bussmann series RDF fused rotary disconnect switch
Catalog Number
RDF400J-4
UPC
051712402781
Product Length/Depth
1 in
Product Height
15.5 in
Product Width
7 in
Product Weight
11.96 lb
Warranty
Not Applicable
Compliances
Not Applicable RoHS Compliant
Amperage Rating
400A
Voltage rating
600 Vac, 250 Vdc
Operating temperature - max
70 °C
Operating temperature - min
-20 °C
Bussmann series complete full line catalog no. 1007
Bussmann series complete full line catalog no. 1007
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Eaton Specification Sheet - RDF400J-4
Feature: Fused rotary disconnect design with 400 A rating and dual voltage capability (600 Vac / 250 Vdc). Business Impact: Provides robust fault isolation, reduces arc-flash exposure, and supports versatile power switching in heavy-load panels. Application: Suitable for panel feeders and motor control centers where reliable isolation is critical. The fuse element adds protection against short circuits, improving crew safety and system uptime. Feature: Front/side handle operation. Business Impact: Expedited service access and safer lockout-tagout procedures, minimizing maintenance downtime. Application: Ideal for control panels with space constraints or frequent re-energization cycles where quick operation matters.Feature: RoHS compliance and wide operating temperature range (-20 to 70 °C). Business Impact: Supports regulatory environmental standards while maintaining performance in varying plant climates. Application: Manufacturing, automation, and process industries requiring compliant, durable disconnects in rugged environments.Feature: Compact footprint and weight (7 in width, 15.5 in height, 1 in depth; ~11.96 lb). Business Impact: Facilitates easier panel integration and reduces installation time. Application: Panel builders and retrofits where space is at a premium and precise sizing matters.Feature: Documentation availability (datasheets, catalogs, and online specs). Business Impact: Accelerates procurement decisions, reduces risk of mis-specification, and enables faster project handoffs. Application: Engineering and procurement teams sourcing electrical protection & circuit control devices.
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FAQs
Install the RDF400J-4 using standard lockout/tagout practices. Mount the unit in a panel space that accommodates its 7 in width and 15.5 in height, with a clear 1 in depth. Wire per the 400 A, 600 Vac / 250 Vdc ratings and ensure front or side handle operation is accessible for service and testing.
The RDF400J-4 offers a 400 A amperage rating with voltage ratings of 600 Vac and 250 Vdc. It operates from -20 °C to 70 °C and is RoHS compliant. The device weighs about 11.96 lb and has a compact 7 in width by 15.5 in height footprint with 1 in depth, suitable for heavy-load isolation.
Yes, the RDF400J-4 is designed for high-current isolation in industrial settings, including motor control centers. Its fused design provides added protection against short circuits, while the 600 Vac / 250 Vdc ratings support common MCC feeder requirements. Ensure panel space, clearance, and wiring meet all applicable codes and manufacturer guidelines.
The RDF400J-4 is RoHS compliant, aligning with environmental and materials standards. The datasheet does not list additional certifications such as CE or SIL. When regulatory requirements mandate specific certifications, verify with the supplier or Eaton’s latest spec sheet before panel approval.
The fused rotary design provides reliable, low-maintenance isolation with straightforward operation, reducing downtime during servicing. Its durable construction and RoHS-compliant materials contribute to longer life in demanding environments, while documentation and datasheets support upfront specification accuracy and future retrofit planning.