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Type 4YC
Type 4YC
Type 4YC
IEC 60079-0: 2017 (Explosive atmospheres, general requirements), § 26.5.1.2 and IEC 60079-15: 2017 (Explosive atmospheres, Equipment protection by type of protection “n”) § 9; 11.2.1; 11.2.2; and 11.2.3.1, when R290 highly flammable refrigerant classed A3 upon ISO 817, as found in air conditioning and heat pumps, may be present (See IEC/EN60335-2-40). Maximum rating 9A 240VAC. Waterproof. (TÜV certificate GC/70269203) Calibration temperature 5 to 85°C
Controls and Safety
Explosion-proof
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Product applicable fields
  • Air and Fluid heating solutions
  • Renewable energy
  • Industry
  • Ventilation
  • Agriculture and Farming
  • Petrochemistry
product presentation

General rules for installation:
Important note: Limiter designed to comply with IEC 60079-0: 2017 (Explosive atmospheres, general requirements),§ 26.5.1.2 and IEC 60079-15: 2017 (Explosive atmospheres, Equipment protection by type of protection “n”) § 9; 11.2.1;11.2.2; and 11.2.3.1, when R290 highly flammable refrigerant classed A3 upon ISO 817, as found in air conditioning and heat pumps, may be present (See IEC/EN60335-2-40)

Approval: TÜV Test report CL 50664237 0001

Housing: IP65 aluminum, epoxy potted,many different dimensions, see drawings

Temperature sensing element: Miniature bimetal disc, not current sensitive

Electrical connection: Two PVC insulated wires, 0.75mm², T105°C (221°F). H05VVF 300V/500V. Wire ends with crimped terminals.

Ground: By the enclosure body

Adjustment: These limiters are factory calibrated, with no adjustment possible by user. Calibration values are checked on it before encapsulation.

Mounting: Surface or through wall

Response time: These limiters are not designed to respond quickly if the temperature rise rate is higher than 1°C per minute.

Contacts: Single pole snap action contact, open or close by temperature rise

Electrical rating: 5A 250V resistive (100,000 cycles). Suitable for power control, remote control of relay coils or PLCs circuits.

Option: On request rating up to 9A 250V with 1.5mm² wires (Need certification testing)