General rules for installation
Important note: These limiters are intended to monitor or control ambient temperatures in gas or dust hazardous areas.
For gas hazardous areas, this equipment is approved as “Ex-mb eb” and is suitable for use in zone 1 and zone 2, gas group IIC (Hydrogen/Acetylene, the highest protection group), with a temperature classification T6;
For dust hazardous areas, this equipment is approved as “Ex-mb”, suitable for use in zone 21 and zone 22, dust group IIIC (electric conductive dust, the highest protection group), maximum allowed equipment temperature 80°C. The thermostat enclosure is approved “Ex-e”.
The applicable ambient temperature of the equipment is:
NC: 10(8)A, 240VAC; 50/60 Hz; -60°C to +80°C (T6/T80°C)
Approvals
These thermostats are certified:
- ATEX: TÜV 22 ATEX 8893 X;
- IECEx: IECEx TUR 22.0058 X
Housing: UV-resistant PPS (according to UL746C Table 25.1). Excellent salt spray resistance: >1008h according to DIN EN ISO9227 (the highest resistance class). IP65 waterproof rating. Impact resistance greater than IK10 (compliant with ATEX standards).
Temperature sensing element: Bimetal disc thermostat. The temperature sensing element is located outside the enclosure, on the right side.
Electrical connection: On built-in junction block, for conductors from 0.5mm² to 4mm², screw terminals. 4 terminals for neutral and line, including jumpers between input and output for neutral. There are also 2 M4 ground terminals inside and 2 outside the enclosure.
Cable glands: Versions with one or two cable glands, see the part numbers.
Adjustment: Fixed setting thermostat. Calibration range: +5°C to +80°C.
Mounting: Wall mounting, by 2 holes diameter 6.5mm at 100mm × 95mm distance. The housing rear side also includes four M4 threaded holes at 36.5 × 75mm distance for mounting metal brackets and feet providing offset wall mounting, pole or pipe mounting (see the accessories in the datasheet).
Contacts: SPNC snap action contact, opens on temperature rise.
Electrical rating: 10A 240V resistive (30,000 cycles) and 8A 240V inductive (6,000 cycles). Suitable for power control, remote control of relay coils or PLCs circuits, and direct power switching.
These devices use silver contacts or silver alloy contacts. Due to the possible oxidation of the contacts in time, we do not recommend the use of AC or DC low-voltage circuits (24V or less) if the switched intensity is less than 100mA, or the switched power less than 800mW. Contact us for those applications that require gold-plated contacts. The electrical ratings given are normalized resistive circuit values.
Options
- Cable glands can be fitted with special bolts for use with electrical cable protection tubes with ATEX approvals.
Main part numbers
- Open 10°C±3°C, close 4°C±3°C: Y9TVB2C1E1004CC2* (2 cable glands) / Y9TVB2C1E1004CC1* (1 cable gland)
- Open 20°C±5°C, close 10°C±5°C: Y9TVB2C1E2010DC2 (2 cable glands) / Y9TVB2C1E2010DC1 (1 cable gland)
- Open 30°C±5°C, close 20°C±5°C: Y9TVB2C1E3020DC2 (2 cable glands) / Y9TVB2C1E3020DC1 (1 cable gland)
- Open 40°C±5°C, close 30°C±5°C: Y9TVB2C1E4030DC2 (2 cable glands) / Y9TVB2C1E4030DC1 (1 cable gland)
- Open 50°C±5°C, close 40°C±5°C: Y9TVB2C1E5040DC2 (2 cable glands) / Y9TVB2C1E5040DC1 (1 cable gland)
- Open 70°C±5°C, close 60°C±5°C: Y9TVB2C1E7060DC2 (2 cable glands) / Y9TVB2C1E7060DC1 (1 cable gland)
* Part numbers used in antifreeze heating.
Classification
Gas classification: Ex II 2G Ex eb mb IIC T6 Gb
Dust classification: Ex II 2D Ex tb IIIC T80°C Db
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