Transformers
To control the speed of speed controllable motors without hum, step transformers are used. Several motors can also be connected to these up to the rated load capacity of the step transformer.
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| SCNR5: 5-stage transformer in white surface-mounted housing with illuminated on/off switch. | ETW-ETID: 5-stage transformer in gray industrial housing for up to 10 A maximum load. | ETISW: 5-stage transformer für switch cabinet installation for 230 V ~ 50/60 Hz and 400 V ~ 50/60 Hz. | Kit SCB5: Flush-mounted box für the wall-mounted installation of the 5-stage transformer SCNR5. |
Common features - Dip impregnated autotransformers, design according to VDE 0550. Max. permissible ambient temperature 40°C. Low susceptibility to faults, good price-performance ratio. Low-loss and noise-free fan operation. Several, even different fans can be connected to one transformer up to the maximum load. Gradation 75 / 110 / 150 / 180 and 230 V (SCNR5, ETW and ETISW) or 80 / 140 / 200 / 280 / 400 V (ETID and ETISD). 5-position rotary switch with off-position. Special voltages and frequencies on request.
Executions with full motor protection on request.
SCNR5 - Housing plastic, color white;. Suitable for surface mounting. 2-pole, illuminated on/off switch. Can be used as flush-mounted device with flush-mounted housing kit SCB5.
ETW 1.0 - 10.0 - Housing plastic, color light gray. Operating light, additional connection for shutter up to 40 VA. Protection class IP54.
ETISW 1.5 - 5.0 - Built-in transformers with built-up terminal strip with 5 voltage taps. Angle rails für quick and easy mounting. Accessories: 5-step control switch for control cabinet installation with front mounting. Recessed connections.
ETID 1,5 - 4,0 - Surface-mounted housing plastic, color light gray. Two autotransformers in open V circuit. Operating light, additional connection for shutter up to 40 VA. Protection class IP54. Version with full motor protection on request.
ETISD 1.5 - 7.0 - 2 built-in transformers in open V circuit with built-on terminal strip with 5 voltage taps. Angle rails for quick and easy mounting.
Accessories: 5-step control switch. For control cabinet installation with front mounting. Recessed terminals.
| Please note that for the wall fans of the E-series special step switches are available. |
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