Eaton IZMX-ST24DC-1 Shunt Trip Kit - UL Listed
Part Number: IZMX-ST24DC-1
Quick Summary
Eaton IZMX-ST24DC-1 is a 24 Vdc shunt trip assembly used with NRX breakers for remote tripping in industrial panels. This solution addresses the common pain point of delayed fault isolation by enabling rapid, reliable shutdown from a control center. The unit is UL Listed and designed to work within a 24–48 Vdc control range on universal NRX frames, supporting Power Defense ICCB configurations. For system integrators and maintenance teams, it reduces wiring complexity and shortens commissioning cycles, while delivering consistent performance across 50 to 60 Hz networks and varied control architectures.
Product Information
Extended Description
IZMX-ST24DC-1 Eaton: Eaton Power Defense ICCB shunt trip, 24 Vdc Shunt Trip Assy Kit – PXR, Power Defense ICCB, Universal, 24-48 Vdc, PXR, 50-60 Hz
Product Name
Eaton Series NRX shunt trip
Catalog Number
IZMX-ST24DC-1
UPC
786685997728
Product Length/Depth
8.75 in
Product Height
2 in
Product Width
4 in
Product Weight
1.75 lb
Certifications
UL Listed
Type
24 Vdc Shunt Trip Assy Kit – PXR
Voltage rating
24-48 Vdc
Trip Type
T253
Frame
Universal
Frequency rating
50 to 60 Hz
Accessories
Shunt trip
Series
Series NRX
Feature → Business Impact → Application: The IZMX-ST24DC-1 provides a 24–48 Vdc shunt trip capability directly integrated with the NRX shunt trip assembly, enabling fast remote disconnection from supervisory controllers. This reduces fault-to-trip times and minimizes equipment exposure during electrical faults in industrial control panels. Application: Suitable for Power Defense ICCB installations in universal NRX frames where remote trip reliability is critical. Feature → Business Impact → Application: Universal frame compatibility allows straightforward upgrade paths and site-wide standardization, decreasing spare parts inventory and improving maintenance response times. Application: Retrofit projects and new builds within automation enclosures demanding consistent form factors. Feature → Business Impact → Application: UL Listed certification offers safety compliance assurance, facilitating regulatory readiness and smoother QA audits for panel builders and end users. Application: Compliance-driven environments such as manufacturing lines and process controls. Feature → Business Impact → Application: 24–48 Vdc compatibility with 50–60 Hz operation enables flexible interface with common control networks, reducing integration risk. Application: Cross-site deployments in facilities with mixed voltage control architectures. Feature → Business Impact → Application: Shunt trip accessories included streamline installation, shorten wiring harness design, and accelerate commissioning. Application: Field installs on NRX-based ICCB systems with minimal engineering overhead.
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FAQs
IZMX-ST24DC-1 is designed to pair with Eaton NRX shunt trip assemblies on universal frames (PXR) and Power Defense ICCB configurations. It supports 24–48 Vdc control circuits and is intended for straightforward mounting within standard electrical enclosures, reducing wiring complexity and simplifying panel integration.
Key specs include a voltage rating of 24–48 Vdc, frequency rating of 50–60 Hz, trip type T253, and a universal frame. Physical footprint shares a length of 8.75 inches, width of 4 inches, height of 2 inches, and a weight of 1.75 lb. It is UL Listed and designed for 24 Vdc shunt trip operations.
Yes. IZMX-ST24DC-1 is UL Listed, ensuring compliance with recognized safety standards for electrical protection devices used in control panels and NRX-based ICCB systems, which supports compliance-driven manufacturing and audit readiness.
Applications include remote tripping in industrial control panels, NRX circuit breaker protection schemes, and Power Defense ICCB configurations (PXR). It is particularly beneficial in environments requiring rapid fault isolation, minimized downtime, and standardized universal-frame installations.
Plan for straightforward field wiring within 24–48 Vdc control loops, leverage the universal frame for easy upgrades, and consolidate spares around the NRX shunt trip family. The UL Listed rating supports regulatory clearance, while the included shunt trip accessory reduces wiring harness customization and accelerates commissioning.