Eaton ER1-400J3PB Enclosed Disconnect - NEMA 1
Part Number: ER1-400J3PB
Quick Summary
ER1-400J3PB is a rugged enclosed rotary disconnect switch designed for isolating high-current circuits in industrial control panels. This device helps prevent accidental energization during maintenance, addressing a common pain point in busy facilities where quick, safe shutdowns are critical. CE Marked and built for indoor use with a NEMA 1 enclosure, it also features fuse class J compatibility and a pistol-style handle for one-handed operation. By standardizing on this Eaton Bussmann series switch, engineers can improve safety, streamline procurement, and reduce downtime while maintaining compliance across multiple machines and lines. The unit accepts standard Bussmann-series components and is compatible with 600 V systems.
Product Information
Extended Description
ER1-400J3PB Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Fuse class J, Pistol handle, 600V, 400A, Black, NEMA rating 1
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER1-400J3PB
UPC
051712416009
Product Length/Depth
47.5 in
Product Height
15 in
Product Width
36.625 in
Product Weight
19 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
400A
NEMA rating
NEMA 1
Voltage rating
600 V
Special features
Fuse class J, Pistol handle
ER1-400J3PB~ENC DISC400J NEMA1 BLK
ER1-400J3PB~ENC DISC400J NEMA1 BLK
Eaton Specification Sheet - ER1-400J3PB
Feature: Enclosed design with a NEMA 1 enclosure provides personnel protection and limits arc exposure during isolation, which directly reduces risk and supports safer maintenance routines. Business impact: Lower incident-related downtime and improved compliance with indoor-dry area standards. Application: Ideal for control panels in manufacturing environments where rugged isolation is required. Feature: 400A amperage rating at 600V supports high-demand equipment without sacrificing safety or control, enabling a compact control architecture. Business impact: Fewer separate disconnects needed and a smaller panel footprint. Application: Motor drives, presses, and other high-load machinery in machine rooms. Feature: Fuse class J compatibility ensures coordinated overcurrent protection with Bussmann fuses, improving selectivity and safety. Business impact: Reduced fuse counts and easier maintenance planning. Application: Systems requiring verified fuse coordination in 600V circuits. Feature: Pistol-style handle enables quick, one-handed operation, enhancing operator safety and efficiency. Business impact: Faster line changeovers and reduced ergonomic strain for technicians. Application: Regular maintenance tasks and service disconnects in busy production lines. Feature: Clear dimensions and weight (47.5 in L, 36.625 in W, 15 in H; 19 lb) support precise installation planning. Business impact: Predictable installation time and easier retrofit in existing panels. Application: Retrofit projects and new builds where space is constrained but robust isolation is needed. Feature: CE Marked compliance confirms adherence to essential safety requirements for European markets, reinforcing regulatory alignment. Business impact: Streamlined cross-border procurement and consistent safety standards. Application: Global manufacturing facilities seeking uniform protection devices across sites.
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FAQs
ER1-400J3PB is designed with a NEMA 1 enclosed body, making it suitable for indoor, dry environments. The unit measures 47.5 in long, 36.625 in wide, and 15 in high, with a weight of 19 lb, facilitating straightforward mounting in standard control cabinets. Use compatible mounting patterns and allow clearance for the pistol handle and service access.
The ER1-400J3PB is rated for 400 A at up to 600 V, with a NEMA 1 enclosure. It uses fuse class J protection and a pistol-style handle to enable safe isolation of high-current circuits in indoor panels. This makes it suitable for machine control panels, power distribution blocks, and service disconnects in moderate environmental conditions.
ER1-400J3PB is well suited for isolating power in indoor industrial control applications, such as machine control panels, motor control centers, and service disconnects. Its robust enclosure constrains arcing and protects personnel during maintenance. The unit’s 47.5 in length and pistol-handle operation simplify installation in tight spaces where quick, safe disconnection is critical.
The equipment carries CE Marked compliance, reflecting adherence to essential safety requirements for the European market. It also provides a NEMA 1 enclosure suitable for indoor dry environments. While other certifications are not listed in the data, CE marking along with the rugged Bussmann-series design helps installers meet regulatory requirements for electrical protection devices in industrial facilities.
With a durable enclosed design and a pistol-handle actuator, ER1-400J3PB supports safer maintenance and quicker disconnection, reducing downtime during routine tests or fault isolation. The switch is rated for 400A at 600V, enabling extended service life in demanding loads. The compact, standardized dimensions also simplify retrofits and spare-part planning, delivering predictable lifecycle costs.