The KACON KTA/KTH series are small automatic thermostatic controllers (enclosure thermostats) with convenient wiring and sensitive control. A thermostatic bimetal sensor and snap-action contact switch the load without any auxiliary power — no battery required — and the wide setting range is adjusted on the front dial.
KTA (normally closed, red dial): contact breaker for regulating heaters.
KTH (normally open, blue dial): contact maker for regulating filter fans and heat exchangers, or for switching signal devices when the temperature limit has been exceeded.
Large temperature setting range, simple to mount
Small size: 60 x 33 x 43 mm, approx. 40 g
High switching performance, service life > 100,000 cycles
Automatic thermostat — bimetallic sensing, no battery required
Insulating plastic casing to UL94 V-0, light grey, IP20
Model code / Temperature range (same codes for KTA and KTH):
| Model code | Temperature range |
|---|---|
| 50 | -10 to +50°C |
| 60 | 0 to +60°C |
| 80 | +20 to +80°C |
| 120 | +14 to +122°F |
| 140 | +32 to +140°F |
Models: KTA-50, KTA-60, KTA-80, KTA-120, KTA-140 (NC) and KTH-50, KTH-60, KTH-80, KTH-120, KTH-140 (NO).
| Parameter | Value |
|---|---|
| Switch temperature difference | 7K (±4K tolerance) |
| Sensor element | thermostatic bimetal |
| Contact type | snap-action contact |
| Contact resistance | <10mΩ |
| Service life | >100,000 cycles |
| Max. switching capacity | 250VAC, 10(2)A / 120VAC, 15(2)A / DC 30W |
| EMC | acc. to EN 55014-1-2, EN 61000-3-2, EN 61000-3-3 |
| Connection | 2-pole terminal, clamping torque 0.5Nm max., rigid wire 2.5mm², stranded wire (with wire end ferrule) 1.5mm² |
| Mounting | clip for 35mm DIN rail EN 60715 |
| Casing | plastic according to UL94 V-0, light grey |
| Dimensions | 60 x 33 x 43 mm |
| Weight | approx. 40g |
| Operating temperature | -20 to +80°C (-4 to +176°F) |
| Storage temperature | -45 to +80°C (-49 to +176°F) |
| Protection type | IP20 |
Temperature control in enclosures and distribution boxes, CNC machine tools, production equipment and scientific instruments — KTA with enclosure heaters against condensation and frost, KTH with filter fans, cooling equipment and signal devices against overheating.
For model selection and OEM enquiries, please contact us via the contact page.
