Main applications
Heat pumps and heat pump water heaters using R290 refrigerant (A3).
Fully compliant with EN 60335-2-40 for appliances using A3 refrigerants, including requirements related to arcs and sparks protection.
General description
Sealed Thermal Cut-Out designed in accordance with IEC 60079-15:2017.
Tested and assessed according to
- IEC 60079-15:2017 clause 9
- IEC 60079-0:2017 clause 26.5.1.2
- IEC 60079-15:2017 clause 11.2
Complies with the relevant clauses of IEC 60079-15:2017 as referenced by
- IEC 60335-2-40:2024
- UL 60335-2-40:2022
Applicable to appliances using A3 refrigerants.
Certification
UL
- UL 60730-1
- UL 60730-2-9
- CAN/CSA E60730-1:15
- UL/CSA E60730-2-9 (6,000 cycles)
CE
- LVD certified by TÜV
- EN 60730-1
- EN 60730-2-9 (6,000 cycles)
Explosive atmosphere
Certified by TÜV according to the standards and clauses listed above
Registration number
CL 50710811 0001
Technical features
Housing
Dimensions: see drawings
Capillary
- Copper capillary
- Standard lengths 500 mm or 900 mm (Special lengths available on request)
- Black PVC sleeve on capillary
- Minimum bending radius 5 mm
Temperature sensing element
- Liquid-filled thermostatic assembly.
- Boiling of the fluid causes contact tripping.
Compared to conventional liquid-filled systems, the device is sensitive to atmospheric pressure and offers faster response time.
Terminals
- Six 6.35 × 0.8 mm quick-connect terminals
- or six M4 screw terminals with saddle
Other terminal configurations available on request
Terminals available in horizontal or vertical orientation
Temperature adjustment
- Fixed setting
Mounting
- Front threaded bushing M10 × 1 or Wall mounting rear bracket
Manual reset
- Fail-safe action
- Front-access reset button
Contacts
3 poles single throw
- 20 (3.3) A 250 V
- 16 (2.6) A 400 V
Snap-action contact
Double-pole versions available with identical dimensions.
Maximum ambient temperature at head
- 85 °C (185 °F)
- Must not exceed calibration temperature minus 10 °C
Pollution degree
- 3 for 250 V
- 2 for 400 V
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