ELKO EP TEV-4 Single-Level Thermostat
Product Overview
The TEV-4 is a single-point thermostat designed for precise monitoring and regulation of temperature in demanding environments. These include humid, contaminated, aggressive, and defective conditions, as well as industrial workshops, washing rooms, green-houses, cellars, and cooling boxes.
Key Features:
- Single-point thermostat for monitoring and regulation of temperature in demanding environments (humid, contaminated, aggressive, defective conditions, industrial workshops, washing rooms, green-houses, cellars, and cooling boxes).
- External version with IP65 protection, designed for wall mounting.
- Integrated built-in thermo-sensor.
- Two functions adjustable by jumper: heating and cooling.
- Three adjustable temperature ranges via jumper, with fine adjustment via potentiometer.
- Three adjustable hysteresis levels via jumper.
- Potentialless NO-SPST contact rated for 12 A AC1 switching.
Image Description: A white, compact plastic enclosure for the TEV-4 thermostat, featuring a cable entry at the top with a protective gland, a blue "IP65" rating sticker, and the ELKO EP logo.
Technical Specifications
| Parameter | Value |
|---|---|
| Supply Terminals | L-N |
| Voltage Range | AC 230 V (50-60 Hz) |
| Input (apparent / loss) | max. 6 VA/0.7 W |
| Max. dissipated power (Un + terminals) | 2.5 W |
| Tolerance of voltage range | -15 % to +10 % |
| Function - J3 | Setting by jumper J3 |
| Function - J2 | Cooling / Heating |
| Temperature Setting Range 1 | -30 °C to 0 °C (-22 °F to 32 °F) |
| Temperature Setting Range 2 | 0 °C to 30 °C (32 °F to 86 °F) |
| Temperature Setting Range 3 | 30 °C to 60 °C (86 °F to 140 °F) |
| Slight Temperature Setting | Potentiometer |
| Hysteresis Setting - J1 | 0.5/1.5/4 °C (32.9/34.7/39.2 °F) by jumper J1 |
| Output Contact | 1 x NO-SPST (AgSnO₂) |
| Current Rating | 12 A/AC1 |
| Max. Breaking Capacity | 3000 VA/AC1, 384 W/DC |
| Peak Current | 30 A/< 3 s |
| Switched Voltage | 250 V AC/24 V DC |
| Mechanical Life | 30,000,000 ops. |
| Electrical Life | 100,000 ops. |
| Operation Temperature | -30 °C to 65 °C (-22 °F to 149 °F) |
| Storing Temperature | -30 °C to 70 °C (-22 °F to 158 °F) |
| Dielectrical Strength | 4 kV (supply-output) |
| Operation Position | Sensor-side down |
| Protection Degree | IP65 |
| Overvoltage Category | III. |
| Pollution Degree | 2 |
| Max. Cable Size (mm²) | max. 1x 2.5, max. 2x 1.5/ with sleeve max. 1x 2.5 (AWG 12) |
| Suggested Power-Supply Cable | CYKY 3x2.5 (CYKY 4x1.5) |
| Dimensions | 153 x 62 x 34 mm (6" x 2.4" x 1") |
| Weight | 123 g (4.3 oz.) |
| Standards | EN 60255-1, EN 60255-26, EN 60255-27, IEC 60730-2-9 |
Device Description and Operation
Internal Layout and Jumper Settings
Image Description: A diagram showing the internal layout of the TEV-4 thermostat. It highlights the placement of jumpers (J1, J2, J3), a potentiometer for fine adjustment, terminals labeled L, N, 15, and 18, a cable grommet (M16x1.5 for cables up to 10 mm diameter), and mounting holes (Ø 4.3 mm). It also indicates the connection of the temperature sensor.
| Jumper | Setting | Range (°C) | Function |
|---|---|---|---|
| J1 (Hysteresis) | 0.5 / 1.5 / 4 | - | - |
| J2 (Adjustable Range) | -30 to 0 / 0 to 30 / 30 to 60 | - | - |
| J3 (Function) | - | - | Cooling / Heating |
Connection Diagrams
Image Description: Two wiring diagrams are shown. The first illustrates a 3-wire connection using terminals L, N, 15, and 18, with a jumper between L and 15. The second diagram shows a 4-wire connection, also using terminals L, N, 15, and 18, with potentialless NO contacts.
Functional Operation
Image Description: A graph illustrating the thermostat's operation. It shows the "Actual temperature level" fluctuating around the "Setup temperature level" with adjustable hysteresis bands, indicating the switching points for heating and cooling functions.
Description of Function
The device is standardly supplied with jumper L-15 (3-wire connection). For correct operation, the device must be mounted with the sensor-side facing downwards.
