Foxboro C0136HZ Relay Replacement Kit
Overview:Maintenance‑Grade Relay Service Kit for I/A Series DCS
The Foxboro C0136HZ is an original‑manufacturer relay replacement service kit designed for the Foxboro I/A Series DCS control hardware. This maintenance‑oriented spare assembly contains replacement relays and related mounting accessories, used to refurbish failed relay‑based output boards inside I/A‑series racks. Instead of replacing the entire expensive circuit board, technicians can use this kit to swap worn‑out relay components, restoring discrete‑output switching function while lowering overall maintenance cost for legacy DCS installations.
Kit Contents & Key Features
‑ Pre‑matched relay components plus supporting hardware (sockets, mounting hardware) for direct field‑replacement of worn relays on target Foxboro I/A‑series cards‑ Factory‑qualified OEM spare components, consistent with original‑spec electrical ratings and isolation requirements‑ Designed for cabinet‑side overhaul work; used for repairing relay‑output type I/O modules suffering contact‑burnout or relay‑coil failure‑ Compact kit form, suitable for site‑inventory of maintenance spares for process‑plant DCS cabinets‑ End‑of‑life original production; available stock consists of surplus, NOS and tested refurbished‑kit inventory
Typical Industrial Application Scenarios
C0136HZ service kits are widely kept as maintenance spare parts for petrochemical plants, power‑generation units, pulp‑and‑paper mills and large water‑treatment facilities running legacy Foxboro I/A‑Series DCS systems. Relay‑contact wear is one of the most common failure modes for relay‑output I/O cards. This kit offers a cost‑effective overhaul alternative against full‑board replacement. When the relay components degrade, field‑solenoid, indicator‑lamp and auxiliary‑relay drive points will lose switching capability.
Sourcing & On‑Site Replacement Guidance
- Confirm exact part marking C0136HZ during procurement. Verify kit compatibility with your target I/A‑series I/O card model; this kit is not universal for all Foxboro boards.
- Take anti‑static ESD precautions during disassembly and relay‑component replacement.
- Follow Foxboro official overhaul procedure for relay‑swap; strictly observe terminal‑torque requirements.
- After replacement, trigger each output channel to validate relay‑switch‑action before putting the DCS back to production‑mode operation.
Maintaining tested spare C0136HZ relay‑replacement‑kit helps reduce maintenance‑cost and shortens downtime for plants operating Foxboro I/A‑Series DCS hardware.



