Eaton ER1-100J3PB Enclosed Rotary Disconnect Switch - NEMA 1
Part Number: ER1-100J3PB
Quick Summary
ER1-100J3PB is an enclosed rotary disconnect switch that provides reliable isolation for industrial electrical control panels. Maintenance teams often face unsafe lockout procedures and confusing wiring layouts that slow downtime and raise risk. Key protection features include a NEMA 1 enclosure for indoor use, a 600 V voltage rating, and a 100 A current rating, plus fuse class J compatibility. Designed to simplify panel protection and standardize switching across machines, it blends rugged reliability with easy installation and serviceability, delivering measurable improvements in safety and operational uptime for industrial facilities.
Product Information
Extended Description
ER1-100J3PB Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Fuse class J, Pistol handle, 600V, 100A, Black, NEMA rating 1
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER1-100J3PB
UPC
051712415750
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
21 lb
Warranty
Not Applicable
Compliances
Not Applicable
Amperage Rating
100A
NEMA rating
NEMA 1
Voltage rating
600 V
Special features
Fuse class J, Pistol handle
Used with
Used with all switches
ER1-100J3PB~ENC DISC100J NEMA1 BLK
ER1-100J3PB~ENC DISC100J NEMA1 BLK
Eaton Specification Sheet - ER1-100J3PB
Feature → Business Impact → Application: Enclosed rotary disconnect design protects operators and minimizes dust ingress, reducing injury risk and unplanned downtime during maintenance; practical result is safer, faster lockout/tagout in control cabinets and motor starter assemblies across manufacturing lines. Feature → Business Impact → Application: 100 A current rating paired with a 600 V maximum voltage supports typical industrial loads, enabling one-device protection for multiple circuits while simplifying spare-part inventories and commissioning. Feature → Business Impact → Application: NEMA 1 enclosure ensures indoor/service entrance suitability with basic environmental protection, allowing quick deployment in standard electrical rooms without specialized housing costs. Feature → Business Impact → Application: Fuse class J compatibility and ergonomic pistol handle streamline replacement procedures and safer operation, lowering maintenance time and improving operator confidence in daily switching tasks. Feature → Business Impact → Application: Compatibility with all switches and Eaton Bussmann series systems reduces engineering time and bolsters standardization across panel architectures, helping integrators meet compliance timelines and reduce lifecycle costs.
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FAQs
Installation should ensure the unit is mounted in an indoor area with adequate clearance for the pistol handle and operating lever. Verify compatibility with existing switches in the Bussmann series lineup and ensure the enclosure remains within the NEMA 1 protection class for indoor environments. Use proper lockout/tagout procedures during servicing.
ER1-100J3PB is rated for 100 A and 600 V, with a NEMA 1 enclosure. It uses fuse class J protection and features a pistol-style handle for ergonomic operation, providing reliable isolation and compatibility with a broad range of control circuits.
Yes. The NEMA 1 indoor-rated enclosure and 600 V/100 A ratings make it appropriate for general control panels in manufacturing environments, offering safe isolation during maintenance and routine switching for a wide array of equipment.
Maintenance is typically minimal but should include periodic inspection of the pistol handle for grasp comfort, ensuring the enclosure latches are secure, and verifying that the switch operates freely through its range. Replace fuse elements per system design and confirm compatibility with existing switches to maintain safe operation.
Benefits include reduced downtime due to faster lockout/tagout, improved operator safety, and standardized switching across panels. The robust enclosure and 100 A, 600 V ratings support reliable performance, potentially lowering maintenance costs and extending service life of control panels.