Product Overview
The Cantherm Thermal Motor Protector, also known as a Temperature Limiter or Thermal Cut-out, is designed for reliable overheat protection in various electrical components. It is particularly suited for motors, transformers, coils, and electronic devices such as sensors. Key benefits include its small dimensions, robust construction tested for shock and vibration, and suitability for audio and video applications according to EN 60065. The device offers both normally closed (NC) and normally open (NO) contact types, with various current and temperature ratings to meet diverse application needs.
Product Attributes
- Brand: Cantherm (Div. of Microtherm International Cooperation)
- Certifications: VDE / ENEC, UL, cUL, CQC
- Testing: Shock and vibration tested (similar to EN 50155), Tested for audio, video applications (EN 60065)
- Material: PPS housing (G410/6, ACFA), Aluminum housing (G700/B)
- Lead Options: Leadframe version, standard wire, different wire types (UL style 3266/3398, 10086, 1180)
- Resistances: Resistances to impregnation (tight against ordinary resins and lacquers)
- Degrees of Protection: IP00 (provided by enclosures)
- Protection Category: I, II
Technical Specifications
| Specification | Details |
|---|---|
| Models | F13A / E, F20A / E, F23A / E, F20B / G |
| Control Type | Normally Closed (NC), Normally Open (NO) |
| Rated Current at 250 V (50/60 Hz) |
|
| Switching Cycles (under rated current) |
|
| Max. Current under Failure Condition at 250 V (50/60 Hz, PF 0.95) |
|
| Switching Cycles (under max. current) | 3,000 |
| Temperature Rating (Ta) |
|
| Temperature Tolerance | Standard: 5 K |
| Hysteresis | 30 K 15 K (Note: 2) at Ta limits, hysteresis could deviate) |
| Contact Resistance (incl. 100 mm wire) | < 50 m |
| Dielectric Strength (standard insulation) | 2 kV |
| Shock/Vibration Testing | 400 m/s sine half wave / 100 m/s 5 Hz ... 2,000 Hz sine |
| Automatic Action Feature | 1.B, 2.B.M, 1.C (for F20A/E, F20B/G); 2.B, 1.C (for F13A, F23A/E) |
| Max. Operating Voltage | 300 V, 600 V (depending on wire type) |
| Wire Specifications |
|
| Dimensions | Refer to illustration drawings (e.g., F13, F20/F23 A, B, U112/L, G410/6, A150/36, etc.) |
| Housing Options | PPS, Aluminum, different dimensions, thread M4x6 |
| Insulation Options | None / 0 (not insulated), Potted, Coated, Shrink Cap, Cap of PPS |
| Lead Options | Leadframe, standard leads, different dimensions, grid dimension 5.08 |
| Marking Example | F20A 120 05 L310 100 U254 (Type, Response Temp, Tolerance, Wire Type, Lead Length, Insulation) |
| Ordering Example | [F20A12005ACFA06E] |
| Approvals | VDE, ENEC, UL File Number E46827, cUL C22.2 No. 77 / C22.2 No. 24, CQC GB14536.1-1998 / GB14536.10-1996 (Note: 3) different power rating) |
2411041558_Cantherm-F20B160051ZA0060_C17649339.pdf
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