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Small Compact Design Thermostat
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Small Compact Design Thermostat
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KT011-Series

Small Compact Design Thermostat

Models In Stock
  • Compact Design
  • Wide Adjustment Range
  • Available with °C or °F Scale
  • Color Coded Temperature Dials
KT011-Series
From TWD 1,312
Models In Stock
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5 Variations available
See all series options below
KT011-SeriesData Sheet

Data Sheet
Small Compact Design Thermostat KT011-Series KT011-Series
Product Overview
  • Current Rating 15 A
  • Form factor Clip for 35 mm DIN Rail
  • Height 60 mm
  • Number of Circuits N/A
  • Operating Temperature, Min -45 °C
  • Series ID KT011-Series
  • Service Life 100,000 cycles
  • Storage Temperature, Min -45 °C
  • Supply Voltage 120 to 250 Vac
  • Temperature Range Adjustable
  • Weight 40 g
  • Width 33 mm

Supported Applications

The Omega KT011-Series is a small, compact, DIN rail-mountable mechanical thermostat designed for use up to 5,000 meters in altitude. The series utilizes a thermostatic bimetal sensor element and snap-action contact output suitable for regulating heaters, filter fans, heat exchangers, and signal devices.

Operating Conditions & Performance

The KT011-Series operates within an ambient temperature range of -45 to +80 °C (-49 to +176 °F) with a maximum humidity rating of 90 % RH (non-condensing). Measurement ranges are available in two scales: +32 to +140 °F and 0 to +60 °C. The device features an accuracy class of ±7°F (4K) with a switch temperature difference (hysteresis) of 7 K (±4 K tolerance).

Electrical performance is rated for AC 250 V, 50-60 Hz operation. Switching capacity varies by voltage: 10 A at AC 250 V, 15 A at AC 120 V, and 30 W at DC 24-72 V. The maximum inrush current is rated for AC 16 A for 10 sec. Service life is verified to 100,000 cycles.

Configuration Options

The series offers configurable contact types and temperature scales with color-coded dials (red for NC, blue for NO). Key configuration parameters include:

  • Contact Type: Normally Closed (NC) or Normally Open (NO).
  • Setting Ranges: +32 to +140 °F or 0 to +60 °C.
  • Housing & Mounting: Plastic casing according to UL94 V-0, light grey; clip for 35 mm DIN rail (EN 60715).
  • Electrical Connection: 2 Push-In clamps supporting rigid wire up to 2.5 mm² (AWG 14) and stranded wire up to 1.5 mm² (AWG 16). Wire end ferrules must be used.
  • Approvals & Certifications: CE, cULus, DE, EAC, RoHS3, VDE; UL File No. E164102.

The enclosure rating is IP20 / II with an overvoltage category of II (up to 5,000 m) or III (up to 2,000 m). The fitting position is variable.

Key Product Differences

Variants within the KT011-Series are distinguished by their setting range and contact configuration. Model numbers follow the pattern KT011--. Specific examples include:

  • KT011409-U / KT011469-U: Thermostat, NC—open on rise (32 to 140°F or 0 to 60°C).
  • KT011419-U / KT011479-U: Thermostat, NO—close on rise (32 to 140°F or 0 to 60°C).

The contact system is subject to environmental influences which may change contact resistance; this can lead to a voltage drop and/or self-heating of the contacts. The level of switching current has an influence on tolerance accuracy.

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