This circulator is suitable only for drinking water.

Can be used for domestic hot water circulation systems in the industry and building services.

Maintenance-free glandless circulator with threaded or flange connection, pre-selectable speed stages for power adjustment.

Equipment and function

• Manual power adjustment with 3 speed stages
• Pumps with 1~ motor:
• P2 up to 90 W: internal protection against unacceptably high winding temperatures
• P2 = 180 W: Full motor protection with thermal winding contacts in conjunction with tripping unit
• Pumps with 3~ motor:
• P2 up to 90 W: internal protection against unacceptably high winding temperatures
• P2 ≥ 180 W: Full motor protection with integrated trip electronics
• Fault signal light
• Contact for collective fault signal
• Direction of rotation signal lamp
• Mains connection 3~, 230 V with optional switching plug
• Pump housing in red brass or grey cast iron (stainless steel depending on type)
• PN 6/PN 10 combination flange (for DN 40 to DN 65)
• Thermal insulation shells
• Additional functions by retrofittable Protect Module C:
• SSM fault signal as potential-free NC contact
• SBM run signal as potential-free NO contact
• "Overriding Off" control input via external potential-free contact (NC contact)
• Blocking detection
• Full motor protection with tripping unit
• Fault acknowledgement
• Dual pump management (two single pumps installed in parallel) Main/standby operation (automatic fault-actuated switchover/time-sensitive pump alteration)

Operating data

• Fluid media
  Water
• Maximum operating pressure PN
  10 bar
• Max. permitted total water hardness
  3.57 mmol/l (20°dH) (3.21 mmol/l (18°dH) for 20/4 + 25/6)

Motor data

• Emitted interference
  EN 61000-6-3
• Interference resistance
  EN 61000-6-2
• Mains connection
  1~230 V, 50 Hz
• Power consumption P_{1 max}
  200.0 W
• Max. speed n_max
  2390 rpm
• Rated current I_N
  1.00 A
• Protection class motor
  IPX4D
• Threaded cable connection
  1 x PG13.5

Materials

• Pump housing
  1.4031
• Impeller
  PPE-GF30
• Shaft
  Oxide ceramic
• Bearing
  Carbon-graphite

Installation dimensions

• Pipe connection on the suction side RPS
  G 1½
• Pipe connection on the pressure side RPD
  G 1½
• Port-to-port length l0
  180 mm

Information for order placements

• Brand
  Wilo
• Product description
  TOP-Z 25/6
• Net weight, approx. m
  3 kg
• Article number
  2045521