The Watlow EZ-ZONE® ST is an integrated solid-state controller that provides a comprehensive thermal system control solution within a single package. It combines a PID temperature controller with a high-amperage solid-state relay and offers options such as an appropriately sized heat sink, over- and under-temperature limits, a power shut-down contactor, digital communications, and a remote user interface. This modular and scalable design allows users to customize the controller to their specific needs, ensuring cost-effectiveness by paying only for required features. The EZ-ZONE ST supports multiple mounting options, including back panel and DIN-rail installations, and features a touch-safe package compliant with IP2X standards, enhancing user safety. With a temperature accuracy of ±0.1%, it ensures efficient and precise temperature regulation. Additionally, the controller boasts a 200kA short circuit current rating (SCCR) when used with proper fusing, minimizing damage in the event of a short circuit. It also offers communication capabilities with programmable logic controllers (PLCs), personal computers (PCs), or operator interface terminals (OITs) through optional protocols such as EIA 485 Modbus® RTU, EtherNet/IP™, DeviceNet™, or PROFIBUS DP. The EZ-ZONE ST is recognized for its reliability and is backed by agency approvals from UL®, CSA, CE, RoHS, and W.E.E.E., making it a versatile and dependable choice for various thermal management applications.
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| Manufacturer | Watlow |
| Product Name | EZ-ZONE® ST Integrated Solid State Controller |
| Controller Type | PID temperature controller with high-amperage solid-state relay |
| Mounting Options | Back panel or DIN-rail mount |
| Temperature Accuracy | ±0.1% |
| Short Circuit Current Rating (SCCR) | 200kA with proper fusing |
| Communication Protocols | Optional EIA 485 Modbus® RTU, EtherNet/IP™, DeviceNet™, PROFIBUS DP |
| Safety Standards | Complies with IP2X for touch safety |
| Agency Approvals | UL®, CSA, CE, RoHS, W.E.E.E. |