Harmann - automation - transformer speed regulator STRA 4
Price on request
Product description
Five-stage transformer speed controller for three-phase motor in rotary devices (pumps, fans), equipped with an input for connecting a motor thermal contact. It manually adjusts the speed of the motor by changing the supply voltage.
Technical data
- housing made of painted steel sheet
- switch on the housing
- resume work after a power outage
- the ability to remotely stop / resume fan operation
- two pairs of terminal in (OC, CC) for connecting external contacts in potential-free to stop and resume motor operation
- degree of protection IP54 (surface mounting)
- LEDs indicating power on and failure
- built-in thermal protection (TK)
- non-adjustable output (230 V / 2 A) for controlling an additional valve, indicator or damper actuator
- working levels: L40 models - 0-130-180-230-300-400 V; models L50 - 0- (130) -170-220-260-300-400 V
- maximum working temperature 35 C