Skip to content 
Automotive Wiring Solutions for OEM & Harness Manufacturers
From electric vehicle cable systems to CAN-Bus signal transmission, our solutions are built to solve real-world engineering challenges: heat, vibration, EMI interference, and unstable supply chains.
About Casmo
In modern vehicles, wiring is no longer a passive component—it directly affects system reliability, signal integrity, and production stability.
We provide automotive wiring solutions engineered for OEMs, Tier 1 suppliers, and automotive wiring harness manufacturers who require consistent performance across demanding environments.
Who We Support
Designed for professionals actively sourcing or evaluating automotive cable suppliers.
Harness Manufacturers
Stable cable supply for mass production and harness assembly
EV System Integrators
High-voltage solutions for electric vehicle platforms
OEM Procurement & Sourcing
Reliable supply chains with consistent quality
Automotive Electrical Engineers
Technical consultation and application-based recommendations
Complete Automotive Wiring Solutions
We do not just supply cables—we support full lifecycle wiring needs across design, validation, and production.
Automotive Cable Supply
- Automotive control cable — signal & control systems
- Shielded automotive cable — EMI-sensitive environments
- CAN-Bus cable — stable data transmission
All products available in standard and custom configurations aligned with SAE, ISO, and JASO specifications.
EV Cable Systems
- EV battery cable — high current, thermal stability
- EV charging cable — flexibility, durability, safety compliance
- Electric vehicle cable systems — integrated power & signal
Designed for high-voltage environments with enhanced insulation and long-term reliability.
Transportation & Heavy-Duty
- Truck cable systems — vibration-resistant, heavy-duty
- Bus cable systems — long lifecycle, thermal endurance
- Locomotive cable — extreme environment resistance
Higher mechanical strength and environmental durability for demanding applications.
Heavy Truck
Bus Transit
Loco Motive
Our Products
CASPLAST CAN-Bus 125 J1939/11
Shielded CAN-Bus cable for 125°C environments, ensuring stable and interference-resistant communication in heavy-duty automotive backbone networks.
CASPLAST CAN-Bus 150 J1939/11
High-temperature (150°C) shielded CAN-Bus cable designed for reliable data transmission in engine compartments and harsh automotive environments.
CASPLAST CAN-Bus 125 J1939/15
Lightweight unshielded CAN-Bus cable for 125°C applications, ideal for cost-efficient and flexible branch wiring in automotive systems.
CASPLAST CAN-Bus 150 J1939/15
Heat-resistant (150°C) unshielded CAN-Bus cable engineered for durable and flexible branch connections in high-temperature vehicle zones.
CAN-Bus Cable Selection Table
Model | Standard | Structure | Temp Rating | Shielding | Impedance | Voltage | Key Advantage | Application |
|---|---|---|---|---|---|---|---|---|
CAN-Bus 125 (J1939/11) | SAE J1939/11 | Twisted Pair | -55°C ~ 125°C | Shielded | 120Ω ±10% | 300V | Stable signal + EMI protection | Truck / Bus backbone network |
CAN-Bus 150 (J1939/11) | SAE J1939/11 | Twisted Pair | -55°C ~ 150°C | Shielded | 120Ω ±10% | 300V | High-temp resistance + durability | Engine bay / harsh environments |
CAN-Bus 125 (J1939/15) | SAE J1939/15 | Twisted Pair | -55°C ~ 125°C | Unshielded | 120Ω ±10% | 300V | Flexible + cost-efficient | Branch wiring / ECU connections |
CAN-Bus 150 (J1939/15) | SAE J1939/15 | Twisted Pair | -55°C ~ 150°C | Unshielded | 120Ω ±10% | 300V | Heat-resistant + flexible routing | High-temp branch applications |
Applications in Real Automotive Systems
Our cables are used across critical automotive systems:
Wiring Harness Systems
- Power distribution
- Signal routing
- Integration of sensors and ECUs
EV Battery & Charging Systems
- High-voltage transmission
- Thermal-resistant insulation
- Safety-critical performance
Control & Communication Systems
- CAN-Bus cable for data communication
- shielded automotive cable for EMI protection
Heavy-Duty & Commercial Vehicles
- Truck, bus, and locomotive environments
- High vibration, long operation cycles
Cable Materials & Construction Expertise
Cable performance starts with material selection and structural design.
Insulation Systems
Optimized PVC, XLPE, and TPE compounds for varying temperature ranges and chemical resistance.
Shielding Technologies
Precision foil and braid combinations designed to eliminate EMI interference in sensitive CAN-Bus circuits.
Conductor Design
High-purity oxygen-free copper with specialized stranding for maximum flexibility and fatigue life.
Supported Standards
We manufacture cables compliant with major automotive standards:
SAE J1128
TXL / GXL / SXL
ISO 6722
International standard
JASO
AVSS / AVX series
FLRY-B / LV112
European automotive
How to Choose the Right Automotive Cable
Selecting the correct cable is critical for both performance and cost efficiency.
Step 1: Temperature Rating
- 80°C → interior applications
- 125°C → engine compartments
- 150°C+ → high-performance EV systems
Step 2: Electrical Requirements
- Low voltage → standard automotive wiring
- High voltage → EV battery cable / EV charging cable
Step 3: Application Type
- Power → battery cables
- Signal → CAN-Bus cable
- Control → automotive control cable
Common Challenges We Solve
Engineering-driven solutions for the toughest automotive environments. We don’t just supply products; we mitigate manufacturing risks.
Our cables are manufactured with precision outer diameters and consistent wall thicknesses to ensure perfect automated stripping and terminal crimping every time.
Advanced multi-layer shielding and specific twist rates for CAN-Bus applications to maintain signal integrity in electrically noisy environments.
High-temperature XLPE insulation solutions that maintain electrical performance even during continuous exposure to engine compartment heat.
Why Casmo is Different
Built for Harness Manufacturers
We understand the needs of automotive wiring harness manufacturers: Stable cable supply for mass production / Compatibility with harness assembly processes / Support for custom specifications
Engineering-Driven Approach
Application-based recommendations / Material optimization / Technical consultation
Production Reliability
Consistent batch quality / Scalable production capacity / Fast response for urgent projects
Case-Based Performance Impact
Our solutions have helped customers achieve:
Reduced
failure rates in high-temperature zones
Improved
signal stability in CAN systems
Shorter
lead times in mass production
One Supplier for All Automotive Cable Needs
From EV battery cables to CAN-Bus signal cables,
from truck and bus systems to locomotive cable applications,
we provide integrated automotive wiring solutions tailored to your project.
Frequently Asked Questions
Integrated cable systems designed for power, signal, and control applications in vehicles.
EV battery cables are designed for high voltage, high current, and thermal resistance.
To prevent electromagnetic interference and ensure stable signal transmission.
For communication between vehicle electronic systems.
Yes, we provide full customization based on specifications and applications.
Shielded automotive cable is recommended for signal-sensitive applications such as CAN-Bus communication, where electromagnetic interference (EMI) can affect data transmission. Unshielded cables are typically sufficient for power distribution or non-critical circuits. The choice depends on the application environment and signal stability requirements.
Lead time depends on specification complexity and order volume. Standard automotive cables can usually be delivered within 2–3 weeks, while custom automotive wiring solutions may require additional time for material preparation, prototyping, and validation. Fast response and flexible production scheduling are critical for project timelines.
Yes. Our cables are designed to be fully compatible with automotive wiring harness manufacturing processes, including cutting, stripping, crimping, and assembly. We ensure consistent dimensions and material properties to support efficient mass production.
Our products comply with major automotive standards such as SAE J1128, ISO 6722, and JASO specifications. Testing typically includes temperature resistance, voltage performance, abrasion resistance, and electrical stability to ensure long-term reliability in automotive environments.
We implement strict process control from raw material selection to final inspection. This includes standardized production parameters, in-line testing, and batch traceability systems. Consistency is critical for automotive wiring harness manufacturers to avoid failures during assembly and operation.
Get a Custom
Automotive Wiring Solution
Our engineer team will provide a tailored solution to match your need.
