Zone 01
Battery Pack
Battery Pack Harnesses
Cell-to-cell, module-to-module, and pack-to-cabinet harnesses sized to your discharge current and routed for compact pack layouts.
Solutions · Energy Storage Systems
Energy Storage Cable & Harness Solutions Engineered for Project-Grade Reliability
Custom cable assemblies, battery pack harnesses, BMS signal lines, and waterproof connectors built around your ESS cabinet, inverter, PCS, and solar-plus-storage layout — so your system ships safer, integrates faster, and stays stable through years of duty cycles.
Battery Pack Harnesses
BMS Signal Cables
PCS & Inverter Wiring
Outdoor IP-Rated Connectors
ESS Project Ready
From battery cabinet to grid interface
Cable, harness, and connector solutions matched to your system layout
15+ yrs
Custom Harness Experience
IPC/WHMA-A-620
Class II & III Workmanship
ISO 9001 · IATF 16949
Certified Production
UL · RoHS · REACH
Material Compliance
System Connection Map
Where Our Cable Solutions Fit in Your ESS Project
Every energy storage system runs on a chain of dependent connections — battery pack, BMS, PCS, inverter, control unit, and outdoor cabinet. We engineer the cables, harnesses, and connectors at each of these zones, so your project moves from drawing to commissioning without connection-side surprises.
Zone 01
Zone 02
BMS & Signal
BMS & Sensor Cables
Shielded signal harnesses for voltage, temperature, and CAN/RS485 communication — keeping monitoring data accurate under high-current conditions.
Zone 03
PCS / Inverter
Power Cable Assemblies
DC and AC power assemblies between battery, PCS, and inverter, with proper gauge selection and terminal lugs spec'd for sustained load.
Zone 04
Outdoor Cabinet
Waterproof Connectors
IP-rated connectors and cable glands designed around outdoor cabinets and weather-exposed entries, with long-term water-resistant build at the assembly level.
Zone 05
Solar Input
Solar Storage Interface
PV-side cable assemblies and DC interface harnesses that tie solar input cleanly into your storage system without rework on-site.
Zone 06
Control Unit
Control & Comm Harnesses
Low-voltage control harnesses linking BMS, EMS, and HMI boards — pre-labeled and pre-tested so your panel build runs to plan.
Zone 07
Grounding
Grounding Cables
Earthing and bonding cables with crimped lugs and labels, supporting compliant grounding paths across cabinets and racks.
Zone 08
Integration
Pre-Assembled Kits
Bundled harness kits per cabinet model — labeled, tested, and packed in installation order to shorten on-site wiring time.
Tell us which connection zones matter to your project — we'll map your cable list before you commit to specs.
Map My ESS Connections →
Project Risk Points
In ESS Projects, the Wrong Connection Choice Costs You Later
In energy storage systems, cable and harness failures can affect safety, system stability, maintenance cost, and project delivery timelines. We help reduce connection risk from the design stage — before the issue reaches your factory floor, your installer, or your end customer.
Overheating Risk
Undersized conductors or loose terminations build heat under continuous discharge, shortening cable life and triggering thermal alarms in cabinets.
Poor Contact & Voltage Drop
Weak crimps and mismatched terminals introduce resistance that drops voltage, drains efficiency, and creates intermittent BMS faults during operation.
Wrong Cable Specification
Insulation rated below the system's working temperature or voltage means re-engineering after type-test failures — a delay your project schedule can't absorb.
Signal Interference
Unshielded BMS or CAN lines routed near power cables introduce noise that distorts cell readings, leading to false alarms and unreliable SOC reporting.
Outdoor Waterproof Failure
Cabinet entries without proper sealing and IP-rated connector matching allow moisture ingress — causing corrosion, ground faults, and field call-backs.
Batch Inconsistency
Differences between sample and mass production lots break your assembly line tolerances and erode trust with the EPC or system integrator on the other end.
Bring the project early — before tooling, before approvals, before purchase orders — and we'll flag connection-side risks while changes still cost nothing.
De-Risk My Build →
Solutions by Application Type
Built Around the ESS Project You're Actually Delivering
Cable strategy isn't one-size-fits-all. A residential battery wall has nothing in common with a 40-foot container ESS in terms of routing, sealing, or labeling. We tune the cable, harness, and connector package to the system type you're shipping.
01
Residential ESS
- Compact harnesses for wall-mount enclosures
- Clean routing for visible installation
- Flexible custom lengths per model
02
Commercial ESS Cabinets
- Stable power and signal cable assemblies
- Cabinet-level wiring support
- Pre-labeled bundles for fast install
03
Battery Pack Systems
- Battery harnesses for cell & module level
- BMS signal cables with shielding
- Reliable terminal connections
04
Solar + Storage
- Solar cable assemblies for PV input
- Inverter connection cables
- Outdoor waterproof connectors
05
Containerized ESS
- Long cable routing with strain relief
- Weather-resistant outdoor connections
- Batch traceability across container
Tell us your ESS system type and we'll put together the cable package built for that exact application — not a generic catalog.
Match My Application →
Power · Signal · Protection
Three Connection Zones, One Manufacturable Solution
Inside every ESS, cables fall into three jobs — moving current, moving information, and protecting both. We engineer all three together so the harness handed to your assembly line is one coherent solution, not three loose categories trying to coexist.
Zone A · Power
⚡ High-Current Path
Power Zone
High-current cables sized for actual discharge load — engineered with terminal compatibility checked against your busbar, breaker, and BMS hardware so the system carries load without heat or voltage drop.
- High-current cable assemblies
- Battery-to-PCS connection cables
- Grounding & bonding cables
Zone B · Signal
⟁ Low-Voltage Data
Signal Zone
Shielded signal harnesses for BMS, sensors, and CAN/RS485 — kept electrically clean against nearby power lines, so monitoring data stays accurate and your control logic responds to real conditions, not noise.
- BMS communication cables
- Sensor & temperature harnesses
- CAN / RS485 communication lines
Zone C · Protection
◈ Shield & Seal
Protection Zone
Insulation, terminal protection, sealing, and strain relief integrated into the harness build — so the connection survives outdoor exposure, transport vibration, and the full duty cycle of the storage system.
- Insulation & terminal protection
- Waterproof connectors & glands
- Strain relief & mechanical design
We help integrate power, signal, and protection-related connections into a single manufacturable cable assembly solution — quoted as one package, built as one BOM.
Plan All Three Zones →
Engineering Review
From ESS Design to Cable Assembly — Reviewed Before Sampling
Share your system layout, current requirement, cable length, connector type, installation space, and target market. Our engineering team reviews routing, material selection, connector matching, and assembly feasibility before we produce a sample — so the first prototype already reflects a manufacturable design.
01
Requirement
System type, current, length, environment
02
Drawing Review
Engineering feasibility & compliance check
03
Material Selection
Conductor, insulation, certification matching
04
Connector Matching
Terminal & connector compatibility
05
Prototype
Sample build with inspection records
06
Test Feedback
Iteration loop before mass production
Drawing Review
What we review for you
Catching the cable issue at the desk, not on the line.
Most ESS connection problems are written into the project at drawing stage. We help you spot them before they become tooling, samples, and rework.
- Cable routing & bend radius feasibility
- Wire gauge vs. system current draw
- Connector and terminal compatibility
- Target market certification & compliance
- Mass production assembly readiness
Upload your drawing, BOM, or layout sketch — we'll come back with engineering feedback before you commit to a sample build.
Send Drawing for Review →
Solution Matrix
Your ESS Project Pain Points, Mapped to a Real Build Plan
"We support customization" is easy to say. Below is the harder part — what specific cable-side action we take for each project requirement you raise, and what that buys you downstream.
Your Project Need
Our Cable-Side Solution
What It Means for You
High Current Load
Wire gauge selected against actual discharge current, with terminal lugs sized to match your busbar and breaker interfaces.
Stable performance at full load
Outdoor Installation
IP-rated connector options, weather-resistant cable jackets, and cabinet-entry gland sets matched to your sealing plan.
Long-term water-resistant build
Compact Cabinet Space
Optimized harness layout, tighter bend radius routing, and bundle planning around the actual cabinet interior.
Easier door close & service access
BMS Signal Stability
Shielded signal cables, twisted-pair construction, and physical separation from power runs documented in the layout.
Accurate cell & system monitoring
Fast Assembly
Pre-assembled, pre-labeled harness kits packed in installation order — drop-in ready for your panel build line.
Shorter installation cycle time
Long-Term Production
Batch traceability records, IPC/WHMA-A-620 workmanship standards, and locked BOM controls across reorders.
Sample-to-mass-production consistency
Pick the requirements that match your ESS project — we'll put together a quote built around exactly those constraints, not a generic catalog price.
Build My Custom Solution →
Testing & Traceability
Tested for Stable Energy Storage Projects
Every custom cable assembly can be supported with inspection records and project-based testing reports — so your ESS project moves from prototype to production with the documentation your QA team, your EPC partner, and your end customer actually need.
Continuity Test
Hi-Pot Test
Insulation Resistance
Pull Force Test
Terminal Inspection
Visual Inspection
Batch Traceability
Final Inspection Report
Project Documentation
Inspection records, type-test data, and batch traceability sheets — packaged with the shipment so your QA, EPC, and end customer all see the same project documentation.
LOT-2025-A
REV.03
A-620 CLASS II
Need documented test data for your ESS project file? We'll send sample test records with the quote — so your team sees the paperwork before the PO.
Request Test Documentation →
Project Scenarios
Real ESS Projects, Real Connection Decisions
Three project scenarios that show how cable strategy shifts with system type — from battery cabinet OEMs to solar storage integrators to pack manufacturers. Each one had a different challenge and a different cable answer.
Case 01
Battery Cabinet OEM
Application
Commercial ESS cabinet line, building 50–60 units per month with internal cabling wired on-site.
Challenge
Loose wiring inside the cabinet was slowing assembly and causing inconsistency between units.
Solution
Organized internal harnesses — pre-labeled, pre-routed, packed in install order. Faster assembly, identical cabinet-to-cabinet.
Case 02
Solar Storage Integrator
Application
Solar-plus-storage installations with outdoor cabinets exposed to weather, dust, and temperature swings.
Challenge
Field reports of moisture ingress and connector failures within the first 12 months after install.
Solution
Outdoor waterproof cable and IP-rated connector set, with sealing matched to the cabinet entry — long-term water-resistant build at the assembly level.
Case 03
Battery Pack Manufacturer
Application
Lithium battery pack production with strict BMS signal stability requirements and recurring lot orders.
Challenge
Inconsistent BMS readings between sample batches and mass production lots — eroding trust with their downstream customer.
Solution
Shielded BMS signal harnesses with locked BOM and batch traceability records — sample-to-mass-production consistency they could show their customer.
Your project doesn't have to start from zero. Tell us which scenario looks closest to yours — we'll adapt the cable approach to your exact ESS build.
Reference My Project Type →
Start Your Project
Start Your Energy Storage Cable Project
Share the basics of your ESS project — system type, current, length, connector preference, working environment. Our engineering team comes back with feedback on the cable and connector solution before the quote, not after.