Explosion protection according to ATEX. Ex II 2G Ex e IIB+H2 T3/T4 Gb. For operating temperatures from -20°C Ta +40°C. MAICO Ex fans meet the safety requirements of the European Directive RL 2014/34/EU for equipment and protective systems in potentially explosive areas. For Zone 1 and 2. Pipe sleeve made of galvanized sheet steel, with flange on both sides. Can be installed in any position. Can be switched for ventilation or exhaust. Reversing operation: The volume flow is reduced by approx. 35% if the conveying direction is abnormal. Motor: Robust motor with ball bearing, maintenance-free. Motor protection class IP 54. Electrical connection: Separate terminal box, explosion-proof, with cable gland. Safety instructions: Speed control with transformer TR... possible. Exception: DZ.. 35/2 B Ex e, The temperature in the fan motor is monitored by PTC thermistors. The PTC thermistors must be connected to a release system (safety device in accordance with Directive 2014/34/EU) that permanently disconnects the fan from the power supply if the temperature is too high. The MAICO PTC thermistor release system MVS 6 or TMS is recommended as a release system. Only operate the fan with free intake or exhaust if the impeller is protected against contact in accordance with DIN EN ISO 13857, e.g. B. with protective grille SG.Article: DZR 20/2 B Ex e, delivery volume: 1050 m3/h, speed: 2950 1/min, impeller type: axial, speed controllable: yes, reversibility: yes, voltage type: three-phase current, rated voltage: 400 V, mains frequency: 50 Hz, rated power: 65 W, cos: 0.4, INom: 0.23 A, Imax at UNom: 0.25 A, protection class: IP 54, thermal class: F, installation position: vertical / horizontal, housing material: sheet steel, galvanized, weight: 7.2 kg, nominal width: 200 mm, width: 317 mm, height: 317 mm, depth: 240 mm, EX designation according to ATEX directive: Ex II 2 G, EX designation according to standard: Ex e IIB + H2 T4 Gb, Ta ambient temperature: -20 °C Ta +40 °C, IA/IN: 7.3, time tA: 69 sec, operating mode: S1, PTC DIN 44082: M 100, EC type examination certificate
| Property | Value |
| Housing material: | Steel |
| Protection class (IP): | IP64 |
| Channel width: | 317 mm |
| Channel height: | 317 mm |
| Explosion protection category for gas: | ATEX Gas explosion protection, cat. 2G |
| For Ex zone gas: | 1, 2 |
| Nominal voltage: | 0 to 400 V |
| Frequency: | 0 to 50 Hz |
| Power consumption: | 65 kW |
| Air volume unloaded: | 1050 m³/h |
