Eaton ER4-1200N3PR Enclosed Rotary Disconnect - NEMA 4
Part Number: ER4-1200N3PR
Quick Summary
ER4-1200N3PR enclosed rotary disconnect switch provides safe isolation for heavy-duty electrical feeders. If downtime or accidental energization is a concern, the non-fused design combined with a pistol handle simplifies field operation and maintenance. This device carries CE marking and a NEMA 4 enclosure, supporting reliable performance in demanding environments with 600 V and 1200 A ratings. For procurement and deployment, it aligns with Eaton Bussmann series specifications and integrates smoothly into control panels, switchgear, and power distribution systems, delivering robust electrical protection with clear operational advantages.
Product Information
Extended Description
ER4-1200N3PR Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Pistol handle, 600V, 1200A, Red, NEMA rating 4
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER4-1200N3PR
UPC
051712420969
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
1200A
NEMA rating
NEMA 4
Voltage rating
600 V
Special features
Non-fused, Pistol handle
ER4-1200N3PR~ENC DISC1200NF NEMA4 RED
ER4-1200N3PR~ENC DISC1200NF NEMA4 RED
Eaton Specification Sheet - ER4-1200N3PR
Feature: Non-fused design with pistol handle. Business Impact: Reduces maintenance complexity and risk during operation, enabling quick, controlled isolation. Application: Ideal for rugged control panels and switchgear where fast manual disconnection is required. In practice, technicians benefit from intuitive operation and safer energization sequences in daily maintenance. Feature: 600 V, 1200 A electrical rating. Business Impact: Supports high-demand feeders and large motor loads, improving reliability and reducing the need for frequent hardware changes. Application: Suitable for motors and feeders in manufacturing lines and process equipment. Feature: NEMA 4 enclosure protection. Business Impact: Delivers dependable moisture and dust resistance, lowering failure rates in harsh environments. Application: Outdoor or damp indoor installations, including plant floors and service bays. Feature: CE Marking. Business Impact: Facilitates European and global compliance, streamlining cross-border procurement. Application: Multinational facilities requiring standardized safety and performance. Feature: Enclosed rotary design with robust weight of 19 lb. Business Impact: Ensures durable operation with straightforward installation in existing enclosures. Application: Integration into existing control schemes and switchgear with minimal retrofit.
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FAQs
The ER4-1200N3PR is designed for control panels, switchgear, and power distribution enclosures, especially where a rugged NEMA 4 rated, non-fused disconnect is needed. Its pistol-style handle supports quick operation, while its 600 V / 1200 A rating accommodates large feeders and motor loads. Installers should target clean, code-compliant spaces with proper clearances and secure mounting hardware.
This unit is CE marked to support regulatory compliance across Europe and other regions that recognize CE. The NEMA 4 enclosure provides protection against moisture and dust penetration, safeguarding operators during routine operation and maintenance. The non-fused design reduces potential failure modes, contributing to safer routine isolation and minimized risk during servicing.
Yes. With a 600 V voltage rating and a 1200 A amperage rating, the ER4-1200N3PR is suited for heavy feeder sections and large motor starters in manufacturing lines. Its non-fused construction supports straightforward fault isolation, while the rugged enclosure ensures dependable operation in demanding environments. Always verify compatibility with upstream protection devices and wiring gauges.
Comprehensive documentation includes the Eaton specification sheet for ER4-1200N3PR and full catalogs detailing the Bussmann series enclosure disconnects. Downloadable PDFs provide technical data, installation guidelines, and wiring diagrams to assist procurement, commissioning, and service planning. Refer to the provided catalog and datasheet links for detailed dimensions, wiring options, and compliance notes.
Ensure mounting in a compliant enclosure with adequate clearance for operation and ventilation. Use proper wiring practices for 600 V systems and verify conductor sizing for 1200 A loads. Leverage the pistol handle for ergonomic operation and schedule regular inspection of mechanical actuation and enclosure seals to maintain NEMA 4 integrity in harsh environments.