Basic Product Information

KTO 011: Normally closed thermostat, which can be used as a contact circuit breaker for heaters.

KTS 011: Normally open thermostat, which can be used to adjust the contact closure of filter fans and heat exchangers, or switch signal devices when the temperature exceeds the limit.

Features: Large setting range, small size, easy installation, high switch performance.

Technical Parameter

Switch temperature difference: 7K (tolerance ± 4K)

Sensor element: Thermostatic bimetallic strip

Contact type: Quick acting contact

Contact resistance:<10mOhm

Service life:>100000 cycles

Maximum switch capacity: 250VAC, 10 (2) A; 120VAC，15（2）A； DC 30W

Electromagnetic compatibility: compliant with EN 55014-1-2, EN 61000-3-2, EN 61000-3-3 standards

Connection method: 2-pole terminal, suitable for 2.5mm ², clamping torque 0.8Nm

Installation method: Suitable for clamp on 35mm DIN rail (EN50022) or for EF 118 series outlet filter

Shell: UL94 V-0 grade plastic, light gray

Size: 60 × 33 × 43mm

Weight: Approximately 40g

Installation location: Variable

Working/Storage Temperature: -20 to+80 ° C (-4 to+176 ° F)/-45 to+80 ° C (-49 to+176 ° F)

Protection level：IP20

Model and certification information

The models and certifications corresponding to different setting ranges are shown in the following table:

Setting range, normally closed (NC) model, normally open (NO) model, certification:

0 to+60 ° C, 01140.0-00, 01141.0-00, VDE

-10 to+50 ° C, 01142.0-00, 01143.0-00, VDE

+20 to+80 ° C, 01159.0-00, 01158.0-00, VDE

+32 to+140 ° F, 01140.9-00, 01141.9-00, UL File No. E164102

+14 to+122 ° F, 01142.9-00, 01143.9-00, UL File No. E164102

0 to+60 ° C, 01146.9-00, 01147.9-00, UL File No. E164102

Installation and Commissioning

Installation related basic information

Installation method: It can be installed using clips suitable for 35mm DIN rails (compliant with EN50022 standard), or it can be installed on the EF 118 series outlet filter.

Connection method: Using 2-pole terminals, suitable for 2.5mm ² wires, with a clamping torque of 0.8Nm.

Installation position: Flexible selection, not fixed position.

Debugging related tips

Due to the lack of clear debugging steps in the document, combined with the general usage logic of thermostats, the following aspects can be focused on during debugging:

Temperature setting: Adjust the temperature threshold within the specified setting range of the product according to actual needs (different models have different setting ranges, such as 0 to+60 ° C, -10 to+50 ° C, etc.).

Functional testing: By changing the ambient temperature, observe whether the switch status of the thermostat meets expectations (KTO 011 is normally closed and opens when the set temperature is reached); KTS 011 is a normally open type that closes when the set temperature is reached to verify its proper functioning.