Eaton ER4P-40N3PR Enclosed Rotary Disconnect - NEMA 4P
Part Number: ER4P-40N3PR
Quick Summary
Eaton ER4P-40N3PR is an enclosed rotary disconnect switch used to safely isolate electrical circuits in industrial control panels. In maintenance, uncertain isolation and slow lockout procedures can lead to downtime and safety hazards. This unit carries CE marking and a NEMA 4P enclosure rating, with a 600 V, 40 A electrical rating, ensuring regulatory compliance and robust protection in demanding environments. Designed for integration with Eaton Bussmann series protection devices, it delivers reliable performance while reducing procurement complexity and lifecycle costs. Its pistol handle design simplifies operation for technicians, while the four-pole arrangement ensures full disconnect of all phases. This combination minimizes arc exposure and improves shutdown reliability across industrial motor controls and service disconnects.
Product Information
Extended Description
ER4P-40N3PR Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Pistol handle, 600V, 40A, Red, NEMA rating 4P
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER4P-40N3PR
UPC
051712487856
Product Length/Depth
12 in
Product Height
12.25 in
Product Width
7.5 in
Product Weight
11.24 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
40A
NEMA rating
NEMA 4P
Voltage rating
600 V
Special features
Non-fused, Pistol handle
Bussmann series complete full line catalog no. 1007
Bussmann series complete full line catalog no. 1007
Eaton Specification Sheet - ER4P-40N3PR
The ER4P-40N3PR is built as an enclosed rotary disconnect switch that provides safe circuit isolation in industrial control panels, with a non-fused design that supports flexible protection schemes and reduces routine maintenance exposure. The 600 V, 40 A rating translates to robust performance for typical 3-phase systems, while a NEMA 4P enclosure delivers dependable weatherproofing and dust resistance in challenging environments. This compact unit, at 12 in long, 12.25 in high, and 7.5 in wide, minimizes panel footprint and simplifies installation in standard switchgear enclosures, helping to optimize space and labor costs. The pistol handle enhances ergonomic operation, improving reliability during frequent maintenance passes and emergency shutdowns. Compatibility with Eaton Bussmann series devices ensures streamlined procurement and consistent electrical protection across assemblies. The four-pole design eliminates the risk of half-bridge conditions, supporting safer, code-compliant disconnections in critical flows. Overall, this solution reduces downtime, improves safety metrics, and lowers total cost of ownership through durable construction and proven performance.
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FAQs
ER4P-40N3PR is a four-pole, non-fused disconnect rated for 600 V and 40 A, designed for integration in standard industrial control panels. Install per NEC/IEC local codes, secure mounting in a suitable enclosure, and connect all four phases to ensure full isolation. Refer to the Eaton datasheet for wiring diagrams and torque specs to maintain NEMA 4P integrity.
ER4P-40N3PR is designed as a Bussmann series enclosed rotary disconnect, offering a non-fused protective disconnect that complements Bussmann supplementary devices. The four-pole configuration ensures proper phase isolation, while its CE marking confirms regulatory compliance. When combined with Bussmann fuses and protective devices, it streamlines procurement and improves overall protection coordination in switchgear.
Yes. The ER4P-40N3PR carries a NEMA 4P enclosure rating, providing weatherproof and dust-resistant protection suitable for damp or dusty industrial settings. CE marking further supports compliance in many markets. Ensure installation in a compatible enclosure and follow local environmental guidelines to maintain performance and safety over the service life.
This switch is CE marked and rated for 600 V with a 40 A amperage in a NEMA 4P enclosure. The CE marking indicates conformity with European health, safety, and environmental requirements, while the NEMA 4P rating denotes protection against windblown dust and water ingress in indoor and outdoor applications.
The combination of a robust 600 V/40 A rating, NEMA 4P enclosure, and non-fused design reduces maintenance downtime and simplifies protection coordination. Its ergonomic pistol handle and compact footprint lower installation time and labor costs. By delivering reliable isolation and long service life, it minimizes unscheduled outages and supports lower total cost of ownership.