Developed by Modicon, Modbus provides a master/slave communication between intelligent automation devices. Based on Belden 9841, the Modbus cable has an increased jacket thickness to ensure a correct termination into the Modbus connectors.

Tinned copper conductors 24(7)AWG, polyethylene insulation, cores twisted into a pair, overall polyester, aluminium foil screen & tinned copper wire braid – 90% optical coverage, PVC or Low Smoke Halogen Free sheath.

Part No.	Belden No.	Conductor Stranding	Conductor res. Ω/km	Sheath Material	Sheath Colour	Weight Kg/Km	O/D mm
B9841-MOD	YM29560	7/0.20	78	PVC	Grey	63	8.0
B9841NH-MOD	LSHF	7/0.20	78	LSHF	Grey	63	8.0

This term is interchangeable with LSZH (Low Smoke Zero Halogen), LSOH (Low Smoke Zero Halogen), OHLS (Zero Halogen Low Smoke) and FRNC (Flame Retardant Non-Corrosive). Beware of the terms LSF (Low Smoke and Fume) or RP (Reduced Propogation), when relating to signal or control cables will normally be modified PVC and produce 'Loads of Smoke and Fume'!

These terms are often misunderstood. Most cables when exposed to fire will not carry on functioning. If you require cable to continue working in the event of fire, and in accordance with various standards please call us.