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 zones 1 and 2. Type series, EZQ...-Ex e, DZQ...-Ex e with square wall plate. EZS...-Ex e, DZS...-Ex e with steel wall ring. Protective grille on the suction side, yellow chromated, contact protection according to DIN EN ISO 13857. Can be installed in any position. Air flow direction: The following illustration shows the air flow direction. , Air flow direction A: Suction via the motor, standard, Air flow direction B: Blowing via the motor, available on request, Direction of rotation, Motor: Robust motor with ball bearing, maintenance-free. Three-phase motor: Separate terminal box, explosion-proof, with cable gland. Reversible. Reversing operation: The volume flow is reduced by approx. 35% if the air flow direction is abnormal. 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. Electrical connection: EZQ/EZS 20 E Ex e: Connection cable approx. 0.5 m long. DZQ/DZS ... Ex e: Connection cable approx. 1.7 m long. Separate terminal box, explosion-proof, with cable gland.Article: DZQ 20/4 B Ex e, design: square wall plate, delivery volume: 540 m3/h, speed: 1490 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: 30 W, cos: 0.22, INom: 0.19 A, Imax at UNom: 0.19 A, protection class: IP 54, thermal class: F, installation location: wall / ceiling, installation type: surface-mounted, installation position: vertical / horizontal
| Property | Value |
| Installation location: | Wall |
| Housing material: | Steel |
| Protection class (IP): | IP64 |
| Channel width: | 345 mm |
| Channel height: | 345 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: | 30 kW |
| Air volume unloaded: | 540 m³/h |
