Area of Application
The temperature detector P is used wherever protection against overtemperatures is required. Specific applications include: protection of primary windings in transformers, winding protection in small electric motors and general temperature protection of small electric equipment.
Mounting brackets or clips available.
Function
The temperature detector P operates independent from any current supply. Temperature detection is effected by means of a bimetal disc which was first dimensioned in accordance with the required cut-off temperature TA. When this fixed cut-off temperature TA is reached, this bimetal disc will snaps over, breaking a contact system and thereby interrupting the electric circuit of the device to be protected. After cooling down and reaching the cut-in temperature TE, the bimetal disc will automatically return into its original position, thus re-establishing the contact. The electric circuit is closed again.

Breaking capacity: | 250 V; 2,5 (1,6) A / 50 Hz |
Min. current: | 20 mA |
Switching temperature: | 40°C – 150°C, (±5 or ±10), in 5 Kelvin steps |
Max. breaking capicity: | 2,5 A cos Φ 1,00 / 250 V, 150°C 4,0 A cos Φ 0,45 / 250 V, 135°C |
Switching differential: | 10 K ... 60 K depending on the cut-off temperature |
Type of action: | 2.B (max. drift ±5 K) |
max. ambient temperature: | 160°C / 200°C, 1 minute |
Approvals: | VDE (EN 60730) UL 2111, conform to RoHS |