Product Overview
The Cantherm thermal motor protector, also known as a temperature limiter or thermal cut-out, is designed for reliable protection of motors, transformers, coils, and electronic components. Its compact dimensions, shock and vibration resistance, and suitability for audio/video applications (EN 60065) make it a versatile solution. Available in normally closed (NC) and normally open (NO) versions, these protectors offer robust performance with a high number of switching cycles under rated and failure conditions.
Product Attributes
- Brand: Cantherm (Div. of Microtherm International Cooperation)
- Certifications: VDE / ENEC, UL, cUL, CQC
- Testing Standards: EN 60065, EN 50155, EN 60730-1 / -2-9, GB14536.1-1998 / GB14536.10-1996
- Protection Degrees: IP00 (for enclosures)
- Protection Categories: I, II
- Leadframe Versions Available
- Tested for audio, video applications
Technical Specifications
| Specification/Model | F13A / E | F20A / E | F23A / E | F20B / G |
|---|---|---|---|---|
| Control Type | Normally Closed | Normally Closed | Normally Closed | Normally Open |
| Rated Current at 250 V 50/60 Hz (PF 0.95 / 0.6) | 2.0 A / 1.6 A | 3.0 A / 2.5 A | 3.0 A / 3.0 A | 2.0 A / 1.6 A |
| Switching Cycles under Rated Current | 7,000 | 10,000 | 10,000 | 7,000 |
| Max. Current under Failure Condition at 250 V 50/60 Hz (PF 0.95) | 4.0 A | 5.0 A | 4.0 A | - |
| Switching Cycles under Max. Current | 3,000 | 3,000 | 3,000 | 3,000 |
| Temperature Rating Ta (steps in 5 K) | 70 C ... 190 C | 70 C ... 185 C | 70 C ... 185 C | 70 C ... 190 C |
| Tolerances (Standard) | 5 K | |||
| Feature of Automatic Action | 1.B, 2.B.M, 1.C | 2.B, 1.C | 2.B, 1.C | 1.B, 2.B.M, 1.C |
| Contact Resistance (incl. wire of 100 mm) | < 50 m | |||
| Hysteresis | 30 K 15 K | |||
| Dielectric Strength (standard insulation) | 2 kV | |||
| Shock / Vibration Testing | 400 m/s sine half wave / 100 m/s 5 Hz ... 2,000 Hz sine | |||
| Resistances to Impregnation | Tight against ordinary resins and lacquers | |||
| UL File Number | E46827 | E46827 | E46827 | E46827 |
| C22.2 No. 77 / C22.2 No. 24 | - | - | - | - |
| GB14536.1-1998 / GB14536.10-1996 | - | - | - | - |
Cantherm Lead Specifications
| Cantherm Code | UL Style | Temperature | Max. Operating Voltage | Max. Diameter | Insulation | Cross Section |
|---|---|---|---|---|---|---|
| ACFA | 3266/3398 | 150 C | 300 V | 1.57 mm | Black | AWG24 / 0.24 mm |
| AEFC | - | - | - | 1.80 mm | Yellow | AWG20 / 0.48 mm |
| KCFA | 10086 | 200 C | 600 V | 1.2 mm | Black | AWG24 / 0.25 mm |
| KEFA | 3266/3398 | 150 C | 300 V | 1.6 mm | Black | AWG20 / 0.50 mm |
| ASFA | - | - | - | 1.65 mm | Black | AWG20 / 0.81 mm |
| DCFB | 1180 | 200 C | 300 V | 1.21 mm | White | AWG24 / 0.51 mm |
| DEFB | - | - | - | 1.51 mm | White | AWG20 / 0.81 mm |
Marking Example
F20A 120 05 L310 100 U254
- F20A: Type (F20 nc)
- 120: Response Temperature (120C)
- 05: Tolerance ( 5K)
- L310: Wire Leads (UL3398 24 AWG)
- 100: Lead Length (100 mm)
- U254: Specific Variation/Insulation
Ordering Example
[ F20A12005ACFA06E ]
- F20 A: Type
- 120: Norm. Closed, Temp. 120C
- 05: Tolerance +/-5C
- ACF: Wire leads UL3398 24 AWG
- A: Color Black
- 06: Lead length 6"
- E: No insulation housing - G410
- E06: Strip .25"
Marking: F20A type (F20 nc) 12005 response temperature (120C), tolerance ( 5K) 065C date of manufacture (June 2015), country (C = Canada)
2411041558_Cantherm-F20B085053600060_C17629261.pdf
Please Use Our Online Inquiry Contact Form Below If You Have Any Questions, Our Team Will Get Back To You As Soon As Possible
