| Item | Parameter |
|---|---|
| Switching difference | 12.6 °F ± 7 °F tolerance (7 K ± 4 K) |
| Sensor element | thermostatic bimetal |
| Contact type | snap‑action contact |
| Service life | > 100,000 cycles |
| Max. switching capacity | NC: 10 A resistive / 2 A inductive @ AC 250 V NO: 5 A resistive / 2 A inductive @ AC 250 V 15 A resistive / 2 A inductive @ AC 120 V DC 30 W (DC 24‑72 V) |
| Max. inrush current | AC 16 A for 10 sec. |
| Housing | PC |
| Weight | 50 g |
| Mounting | clip for 35 mm DIN rail |
| Dimensions | 75 × 33 × 43 mm |
| Operating/Storage temperature | -49 to +176 °F (-45 to +80 °C) |
| Operating/Storage humidity | max. 90 %RH (non‑condensing) |
| Protection type | IP20 |
KTS111 Mini DIN Rail Normally Open Thermostat
Key Specifications
KTS111 (also named KTS011) is a compact normally‑open bimetallic mechanical thermostat designed for enclosure cooling control. Adopting bimetal temperature sensing element and snap‑action contact, it realizes automatic fan control for electrical cabinets.
Made of flame‑retardant PC housing, this tiny thermostat features 0~60℃ adjustable temperature range. It clips onto standard 35 mm DIN rail for quick installation. With long service life exceeding 100,000 switching cycles and CE & RoHS certification, it is widely used to activate filter fans or alarm devices and prevent control cabinets from overheating.





CE · RoHS
Test report per batch
Docs Included
Datasheet + test report
OEM from 100 pcs
CADs, logos, test reporting
Samples
1-5 pcs for qualified buyers
What Buyers Ask Before Inquiry
KTS111 has high switching capacity for direct fan driving. It can be wired with 230V AC filter fans like TB98 and TB99. Do not connect loads exceeding its rated switching capacity to avoid contact burnout.
No external power supply for detection. It uses a bimetallic strip as the sensing component, which works fully mechanically without electronic chips. It only switches the power circuit of cooling equipment.
The rotary knob allows continuous manual setting within 0u201160u2103. There is a builtu2011in hysteresis to prevent the fan from frequent onu2011off cycling, which is normal for mechanical thermostats.

