24 AWG × 2 Tefzel Twisted Pair — Green/ Yellow one twist per inch (1 TPI) for Motorsport Differential Signal Wiring
The M22759/32-24-5/4-1TPI is a 24 AWG two-conductor M22759/32 Tefzel twisted pair in green/ yellow colour combination, twisted at one twist per inch (1 TPI). Twisted pair cable is used in motorsport harness construction for differential signal circuits, CAN bus data lines, and precision sensor pair wiring where noise induced on the pair must be cancelled before reaching the measurement instrument or ECU input. This cable is suited to CAN bus data pairs, low-level sensor differential signals, precision measurement circuit pairs, and fine-gauge twisted pair data transmission circuits.
Why Twisted Pair Is Used in Motorsport Harnesses
A modern race car generates significant electromagnetic interference (EMI) from ignition systems, fuel injectors, electric motors, high-current relay switching, and CAN bus communication. When two conductors are run as parallel wires, they can pick up differential noise — EMI that appears as a voltage difference between the two conductors — which is then interpreted by the connected ECU or instrument as a signal error. Twisting the two conductors together ensures both wires experience nearly identical EMI environments throughout their route: any noise that induces a voltage on one conductor induces the same voltage on the other, producing zero differential noise at the receiving end. This common-mode rejection is the fundamental reason twisted pair is specified for differential sensor circuits, CAN bus, and data acquisition input wiring in motorsport.
Green/ Yellow Colour Pair — Circuit Identification
The green/ yellow colour combination allows the positive and negative conductors of a circuit to be identified by colour within the pair, maintaining circuit polarity discipline throughout the harness. Colour-coding both conductors of a twisted pair distinctly — rather than using two wires of the same colour — prevents polarity reversal during harness assembly, which is particularly important for CAN bus (where reversed polarity produces no communication) and differential sensors (where reversed polarity produces an inverted reading).
one twist per inch (1 TPI) — Noise Rejection Effectiveness
A higher twist rate provides better common-mode noise rejection. One Twist Per Inch (1 Tpi) is the standard specification for motorsport CAN bus and differential sensor twisted pair work, providing effective noise rejection in the EMI environment of a race car engine bay and chassis.
Available from Arctic Performance Parts
Arctic Performance Parts stocks Tefzel twisted pair cable in a range of AWG sizes, twist rates, and colour combinations to support professional motorsport harness builders across Scandinavia. Lead time 1–2 weeks for quantities beyond current stock.
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