FPIC 450A Energy Storage Connector Meets UL 4128 Requirements
FPIC is pleased to announce that representative samples of our 2000V 450A energy storage connector series have been evaluated by UL for use in electrochemical battery system applications. The certification documents identify the product under UL 4128, 5th Edition, covering intercell and intertier connectors for battery system use.
This milestone strengthens FPIC’s capability in high-current battery interconnection solutions and provides additional confidence for customers developing energy storage equipment, battery packs, and related power distribution systems.
What This Certification Covers
According to the UL Certificate of Compliance, the evaluated product category is BBTH2 – Intercell and Intertier Connectors for Use in Electrochemical Battery System Applications – Component, with certificate number UL-US-26118764-0 and report reference E533832-20260524. The issue date is 2026-05-25.
The corresponding UL report describes the product as:
- Cable Connectors
Cat. Nos. A083-1F14-C150N-6A-##, A083-1F14-C150N-5A-##, A083-1F14-C150N-0A-## - Panel Mounted Inlets
Cat. Nos. A083-2M14-E014F-6A-##, A083-2M14-E014F-5A-##, A083-2M14-E014F-0A-##
The report also states the key ratings of this series as 2000V DC and 450A. For the cable connector version, the evaluated conductor size is 300 kcmil.
Why This Matters for Energy Storage Applications
High-current battery connection points in energy storage systems demand more than basic electrical performance. They also require controlled insulation design, reliable mating, proper polarity identification, and suitability for integration into complete battery equipment.
The UL report identifies these products as intercell/intertier connectors intended for use in electrochemical battery equipment, including cable connector and panel mounted inlet configurations. The panel mounted inlet versions are intended for factory assembly onto copper conductors rated 90°C or higher and/or copper or copper alloy busbars in battery equipment.
For ESS manufacturers, battery pack integrators, and related equipment developers, this provides an important compliance reference point when evaluating connector solutions for high-voltage, high-current battery system designs.
Key Product Characteristics
Based on the UL report, FPIC’s 450A connector series includes the following core characteristics:
1. High Voltage and High Current Capability
The evaluated series is rated at 2000V DC and 450A, supporting demanding battery interconnection applications.
2. Cable and Panel-Mounted Configurations
The series includes both cable connector and panel mounted inlet versions, helping customers build matching connection interfaces for different battery system architectures.
3. Single-Pole Intercell / Intertier Connector Design
The report describes the cable connector products as insulated, single-pole mating intercell/intertier connectors, suitable for battery system connection needs.
4. Support for Battery Equipment Integration
The panel mounted inlet versions are intended for assembly to busbars or conductors in electrochemical battery equipment, which is especially relevant for energy storage cabinets, battery packs, and related systems.
Important Compliance Note
The UL certificate clearly states that these are UL Recognized components, not complete end-use equipment. It also states that the certificate itself does not provide authorization to apply the UL Recognized Component Mark; only products bearing the appropriate UL Recognized Component Mark and covered under UL follow-up services should be considered UL Certified within that program context.
In addition, the UL report notes that these devices are:
- not suitable for disconnecting under load
- not intended for use outside an equipment enclosure
- not investigated for an environment rating
- intended for use only in complete equipment where acceptability is determined in the end-use application
This is important for customers who are designing certified end products and need to evaluate the connector as part of the complete system.
What This Means for FPIC Customers
This UL milestone demonstrates FPIC’s continued progress in energy storage connector development and supports our ability to serve customers with more robust interconnection solutions for battery system applications.
For customers working on:
- energy storage systems
- electrochemical battery equipment
- battery pack integration
- power distribution interfaces
- high-current cabinet connections
this development provides stronger confidence in FPIC’s capability to support demanding connector projects with both product development and manufacturing execution.
FPIC Energy Storage Connector Capability
FPIC has been continuously developing energy storage connector solutions for high-current and high-voltage applications. Our energy storage product direction includes connector and cable solutions designed for battery modules, battery packs, and related ESS equipment. FPIC’s internal product materials also describe energy storage connectors with features such as touch-proof design, multiple connection methods, and compliance direction aligned with UL 4128.
This new 450A certification-related progress further strengthens FPIC’s position in the energy storage connector segment.
Contact FPIC for Energy Storage Connector Projects
If you are developing battery packs, ESS cabinets, or related electrochemical battery equipment and need a reliable high-current connector solution, FPIC can support your project with product information, engineering communication, and manufacturing support.
Contact us to discuss your application requirements.
- Website: https://fpiconn.com/
- Email: info@fpiconn.com
