en Application/use
58 WILO SE 2018-12
▪Replace a defective connection cable immediately.
2.4 Monitoring devices
Circuit breaker
The size and switching characteristics of the circuit breakers must conform to the rated
current of the connected consumer. Observe local regulations.
2.5 Installing/dismantling
▪Locally applicable laws and regulations on work safety and accident prevention must be
complied with.
▪Disconnect the product from the mains and secure it against being switched on again.
▪Suitable fixation material must be used for the existing bearing surface.
▪The product is not watertight. Select an appropriate installation site!
▪Do not deform the housing during installation. Seals could leak and affect the stated
IPprotection class.
▪The product may not be installed in potentially explosive areas.
2.6 During operation
▪The product is not watertight. Adhere to protection class IP54.
▪The ambient temperature must be between -30°C...+50°C.
▪The maximum humidity may be 90% (non-condensing).
▪Do not open the switchgear.
▪The operator must immediately report any faults or irregularities to their line manager.
▪In the event of damage to the product or cables, switch off the product immediately.
2.7 Maintenance tasks
▪Do not use any aggressive cleaners or scouring agents or fluids.
▪The product is not watertight. Do not submerse the product in fluids.
▪Only carry out maintenance tasks mentioned in these installation and operating in-
structions.
▪Only original parts from the manufacturer may be used for maintenance and repairs.
Use of parts other than the original parts releases the manufacturer from any liability.
2.8 Operator responsibilities
▪Provide installation and operating instructions in a language which the personnel can
understand.
▪Make sure that the personnel has had the corresponding training for the specified work.
▪Safety and information signs mounted on the device must always be legible.
▪Train the personnel on how the system operates.
▪Eliminate risk from electrical current.
▪To ensure safe working practice, define personnel responsibilities.
Children and persons younger than 16years or with reduced physical, sensory or mental
capacities or limited experience are prohibited from handling the product! A technician
must supervise persons younger than 18years!
3 Application/use
3.1 Intended use
The switchgear is designed for level-dependent control of up to threepumps. Float
switches, level sensors or dynamic pressure bells can be used as level transmitters.
Intended use also includes compliance with this manual. Any other use is regarded as
non-compliant with the intended use.
3.2 Improper use
▪Installation in potentially explosive atmospheres
▪Overflow of the switchgear
4 Product description
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