Overview
The Hydac ETS 388-5-150-400 is a precision electronic temperature switch manufactured by Hydac for industrial temperature monitoring and control applications. This compact unit features a digital display and is engineered to provide accurate temperature measurement with adjustable switching points, making it suitable for hydraulic systems, process control, and automation environments requiring reliable thermal management.
Key Features
- Compact electronic design with digital display for real-time temperature readout
- Adjustable switching setpoints and hysteresis via keypad interface
- Multiple switching outputs for integration with PLCs and solenoid valve control
- Compatible with PT100 temperature probes or optional external sensor configurations
- Wide measuring range suitable for diverse industrial applications
- Switching capacity up to 1.2 A for direct control of low-power devices
Technical Specifications
- Manufacturer: Hydac (Germany)
- Product Type: Electronic Temperature Switch
- Display: Digital (3 or 4-digit)
- Switching Outputs: One or two transistor switching outputs
- Switching Capacity: Maximum 1.2 A
- Hysteresis: Adjustable via keypad
- Sensor Connection: PT100 (4-conductor) or TFP 100 probe compatible
- Electrical Connection: Standardized industrial connector
- Optional Features: Analog output (4–20 mA or 0–10 V)
- Housing: Compact industrial enclosure
- Operating Environment: Industrial hydraulic and control applications
- Pressure Resistance: See installation sleeve accessory ratings
Typical Applications
The ETS 388-5-150-400 is widely used in:
- Hydraulic system temperature monitoring and protection
- Tank-mounted temperature control with the TFP 100 sensor
- Heating and cooling process control in industrial fluid power systems
- PLC-based automated temperature regulation
- Direct solenoid valve control for thermal management
- Process industries requiring precise temperature setpoints
Compatibility & Replacements
Compatible With
- Hydac TFP 100 temperature probe (tank-mounted design)
- Standard PT100 temperature probes (4-conductor configuration)
- Allen-Bradley, Siemens, Mitsubishi, and other industrial PLCs (via switching/analog outputs)
- Solenoid-controlled hydraulic valves
- EtherNet/IP and PROFIBUS networks (via external gateway)
- Industrial SCADA and process control systems
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The ETS 388-5-150-400 may replace other ETS 388 variants with matching output configurations and electrical specifications. Related models in the Hydac temperature switch range include ETS 3800, ETS 380, ETS 3200, and ETS 1700, but direct substitution should be confirmed against electrical connection and setpoint requirements.
Works With
- Studio 5000 (Allen-Bradley) – via PLC input cards reading switching outputs
- TIA Portal (Siemens) – via S7-1200/1500 analog/digital input modules
- GX Works / GX Developer (Mitsubishi) – via FX or Q-series I/O modules
- Sysmac Studio (Omron) – via NX/NY series controllers
- 4–20 mA analog output for any PLC with analog input card
- 0–10 V analog output for process monitoring and recording devices
- Direct 24 VDC control circuits and solenoid valve systems
