- Safe wiring with Push-In terminals
- Faster and tool-free wiring
- Improved air intakes for ventilation
- Easy adjustability of switch temperature setting
- for use in up to 5,000 m altitude
The mechanical thermostats KTO 111 and KTS 111 are two state regulators for use up to 5,000 meters in altitude, thanks to optimized air gap and increased creepage distance. By use of Push-In terminals the thermostat is wired tool-free. The Push-In terminals provide constant pressure on the wires to prevent them from coming loose (e.g. during transport).
Thermostat (NC): Thermostat opens on temperature rise – for regulating heaters or for switching signal devices. Comes with red temperature dial.
Thermostat (NO): Thermostat closes on temperature rise – for regulating filter fans and heat exchangers or for switching signal devices. Comes with blue temperature dial.
| 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 verified |
| Max. operating voltage, frequency range | AC 250 V, 50-60 Hz |
| Max. inrush current | AC 16 A for 10 sec. |
| Connection1 | 2 Push-In clamps |
| Housing | plastic, UL 94V-0, light grey |
| Mounting | clip for 35 mm DIN rail, EN 60715 |
| Dimensions | 2.4 x 1.3 x 1.6" (60 x 33 x 41 mm) |
| Weight | approx. 1.4 oz. (40 g) |
| Mounting position | variable |
| Operating/Storage temperature | -49 to +176 °F (-45 to +80 °C) |
| Operating/Storage humidity | max. 90 % RH (non-condensing) |
| Protection type/Protection class | IP20 / II |
| Overvoltage category/Altitude | II: up to 5,000 m; III: up to 2,000 m |
1 Stripped length of rigid wire: 0.4 to 0.5" (10-12 mm). When connecting with wires, wire end ferrules must be used (square or trapezoid crimp). Length of wire end ferrule: 0.4" or 0.5" (10 or 12 mm).
Important note: The contact system of the regulator is subjected to environmental influences, thus the contact resistance may change. This can lead to a voltage drop and / or self-heating of the contacts.
Setting range | Part No. (NC) | Part No. (NO) | Switching current²/ AC 250 V | capacity AC 120 V | max. DC 24-72 V | Approvals | ||
|---|---|---|---|---|---|---|---|---|
| +32 to +140 °F | 11100.9-00 | 11101.9-00 | 10 (2) A | 15 (2) A | 30 W | VDE | UL File No. E164102 | EAC |
| +14 to +122 °F | 11100.9-01 | 11101.9-01 | 10 (2) A | 15 (2) A | 30 W | VDE | UL File No. E164102 | EAC |
| 0 to +60 °C | 11100.0-00 | 11101.0-00 | 10 (2) A | 15 (2) A | 30 W | VDE | UL File No. E164102 | EAC |
| -10 to +50 °C | 11100.0-01 | 11101.0-01 | 10 (2) A | 15 (2) A | 30 W | VDE | UL File No. E164102 | EAC |
| +20 to +80 °C | 11100.0-02 | 11101.0-02 | 3 (2) A | 3 (2) A | 30 W | VDE | UL File No. E164102 | EAC |
2 The level of switching current has an influence on the tolerance accuracy;
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