Eaton IZMX-MIL-3133C-F40-2 Interlock Kit - UL Listed
Part Number: IZMX-MIL-3133C-F40-2
Manufacturer
Eaton
Part number
IZMX-MIL-3133C-F40-2
Quick Summary
The Eaton IZMX-MIL-3133C-F40-2 Interlock Kit delivers reliable mechanical interlock control for fixed NRX frame breakers in industrial switchgear. It prevents accidental re-energization during maintenance, reducing worker risk and costly downtime. Certified UL Listed, it meets recognized safety standards for electrical protection equipment. Designed for Eaton NRX frames with RF mounting, it installs quickly and provides dependable interlock behavior. This solution enhances maintenance workflows and supports consistent safety practices across industrial facilities, aligning with NRX lineups and fixed-breaker configurations for reliable protection in challenging environments.
Product Information
Extended Description
IZMX-MIL-3133C-F40-2 Eaton: Eaton Power Defense ICCB mechanical interlock, Fixed breaker, RF Frame, Type 31 and 33 Cable
Product Name
Eaton Series NRX mechanical interlock
Catalog Number
IZMX-MIL-3133C-F40-2
UPC
786685983356
Product Length/Depth
9 in
Product Height
2.25 in
Product Width
4.5 in
Product Weight
11 lb
Warranty
One year factory warranty issued from date of shipment from repair center
Certifications
UL Listed
Type
Mechanical interlock kit
Circuit breaker type
Fixed
Frame
RF
Accessories
Mechanical interlock
Mounting Method
FIXED
Series
Series NRX
Feature: The IZMX-MIL-3133C-F40-2 is a mechanical interlock kit designed for fixed NRX-frame circuit breakers. Business Impact: It ensures interlock integrity, preventing unintended re-energization during maintenance and reducing operator risk. Application: Ideal for Eaton Series NRX gear using RF frames in manufacturing facilities. Feature: Mounting method FIXED and compatibility with RF frame ensures straightforward installation. Business Impact: Shorter commissioning time, fewer field modifications, and less on-site troubleshooting. Application: Works seamlessly with Type 31 and Type 33 cables for robust interlock signaling. Feature: UL Listed certification provides market-accepted safety validation. Business Impact: Supports regulator audits and strengthens safety posture across sites. Application: Applicable to electrical protection installations requiring recognized certification. Feature: Accessories include a mechanical interlock to extend functionality. Business Impact: Reduces replacement costs and enhances long-term reliability. Application: Integrates with NRX systems to maintain consistent interlock operation in busy plant floors. Feature: Dimensions and weight (9 in length, 4.5 in width, 2.25 in height, 11 lb) support rugged industrial use. Business Impact: Durable performance in dusty or harsh environments with predictable service life. Application: Suitable for fixed-breaker configurations on RF frames in medium-to-large facilities.
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FAQs
The interlock kit is designed for FIXED mounting on Eaton Series NRX frames with RF configurations. Begin by removing the existing breaker handle assembly, align the interlock with the fixed frame, and secure using the provided hardware. Verify mechanical engagement and interlock travel to ensure proper operation. This kit supports Type 31 and 33 cable configurations for reliable signaling to the control circuit.
UL Listed certification confirms adherence to recognized safety standards for electrical protection devices, reducing compliance risk during audits and inspections. For industrial facilities, this certification provides confidence in interlock reliability under routine maintenance and during fault conditions, contributing to safer maintenance procedures and slower, more controlled restart sequences.
Yes. The IZMX-MIL-3133C-F40-2 is specified for fixed NRX frames with RF mounting and supports Type 31 and Type 33 cable configurations. This compatibility ensures correct interlock signaling and predictable operation within your control scheme, minimizing field modification needs and enabling smooth retrofits or new installations.
By preventing accidental re-energization during maintenance, the interlock kit eliminates a common cause of equipment restart injuries and unplanned outages. Its robust RF-frame compatibility and fixed-mount design streamline servicing workflows, shorten downtime, and improve operator confidence during maintenance windows without compromising protection levels.
The UL Listed interlock kit aligns with safety regulations for electrical protection equipment, supporting audit readiness and standardizing protective interlock behavior. Its integration with NRX frames reduces spare parts complexity, extends component life through durable construction, and lowers total cost of ownership by simplifying installation and maintenance.