West 4700+ Limit Controller
When a process runs hot enough to damage equipment or put people at risk, the temperature controller isn’t the safeguard you want standing between normal operation and a runaway condition — a dedicated limit controller is. The West 4700+ watches the process independently and latches a relay the moment a set safety threshold is crossed, cutting power and requiring a deliberate manual reset before anything restarts.
How It Works
A 5A latching limit relay ships as standard, backed by non-latching alarm relays for early warning before the hard limit is reached. Auto-hardware detection sets up connected I/O automatically, and the controller can be configured from its own front panel or from a PC, so commissioning doesn’t mean re-learning a new interface for every job. Sensor break is detected in under two seconds, and the unit can be reconfigured in the field without opening it up or swapping jumpers.
Key Features
- 5A latching limit relay with manual reset, standard
- Auto-hardware detection for fast setup
- Configurable via front panel or PC
- Sensor break detection in under 2 seconds
- FM, CE, UL, and ULC recognized
Applications
Used as an independent safety layer on ovens, furnaces, heat treatment equipment, and other high-temperature industrial processes where a runaway condition would damage equipment or create a hazard.





