Miniature thermostat one hundred 011 / STS 011

The mechanical thermostat is a two state regulator with small hysteresis. The setting wheel has an anti frost assurance. The housing ensures an optimized air circulation around the bimetal.
STO 011: Thermostat (NC); contact breaker for regulating heaters. The contact opens when temperature is rising.
STS 011:Thermostat (NO); contact maker for regulating of filter fans and heat exchangers or for switching signal devices when temperature limit has been exceeded. The contact closes when temperature is rising.

Technical data Switch temperature difference 4K (±3K tolerance) Sensor element thermostatic bimetal Contact type snap-action contact Service life > 100,000 cycles Max. switching capacity 250VAC, 10 (2) A   120VAC, 15 (2) A   DC 30W at 24VDC to 72VDC Max. inrush current AC 16A for 10 sec. Connection 2-pole terminal for 2.5mm² (AWG13), torque 1Nm max. Mounting clip for 35mm DIN rail, EN60715 Casing plastic according to UL94 V-0, light grey Dimensions 70 x 33 x 42 mm Weight approx. 50 g Fitting position variable Operating / Storage temperature -45 do +80°C (-49 do +176 °F) Operating / Storage humidity max.90% RH (non-condensing) Rodzaj ochrony IP 20

Anti frost assurance The anti frost assurance is a symbol on the setting scale of the NC thermostat (STO 011) at 11°C. This setting assures closing of the switching contact before 0°C.

Example of connection	Example of connection

Setting range	Art. No. Contact Breaker (NC)	Art. No. Contact Maker (NO)	Approvals
0 to + 60°C	01115.0-00	01116.0-00	VDE + UL submitted
0 t o+ 60°C	01115.9-00	01116.9-00	VDE + UL submitted