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Wilo Top Z 25/6 Circulation Pump

This circulation pump is suitable only for drinking water. Can be used for domestic hot water circulation systems in the industry and building services. Maintenance-free glandless circulation pump with threaded or flange connection, pre-selectable speed stages for power adjustment.

Download specifications sheet here.

SKU: ECP-W-TZ-25-6
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Excl. Tax: R 5,937.72 Incl. Tax: R 6,769.00

Product Description


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 indicator light.
 • Mains connection 3~, 230 V with optional switching plug.
 • Pump housing in bronze 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 integrated tripping.
 • Fault acknowledgement.
 • Dual pump management (two single pumps installed in parallel) Main/standby operation (automatic fault-actuated switchover/time-sensitive pump alteration).

 • Pump housing: Stainless steel.
 • Impeller: Plastic (PPE - 30% GF).
 • Pump shaft: Ceramic.
 • Bearing: Carbon, synthetic resin impregnated.

Operating data
 • Fluid to be pumped: Water 100 %.
 • Fluid temperature: 20 °C.
 • Min. fluid temperature: 0 °C.
 • Max. fluid temperature: 65 °C.
 • Maximum operating pressure: 10 bar.
 • Max. permitted total hardness in domestic hot water circulation systems:3.21 mmol/l (18 °dH).

 • Emitted interference: EN 61000-6-3.
 • Interference resistance: EN 61000-6-2.
 • Mains connection: 1~230V/50 Hz.
 • Power consumption P1: 0,085 kW ... 0,2 kW.
 • Max. speed: 1260 1/min ... 2390 1/min.
 • Current consumption: 0,65 A ... 1 A.
 • Protection class: IP X4D.
 • Threaded cable connection: 1x13.5.

 • HxLxD: 180 mm x 140 mm x 162 mm.
 • Weight approx.: 3,4 kg.

Additional Information

Additional Information

Disclaimer Please note that stock availability is subject to prior sales. Prices exclude delivery. The image serves as an example of what the product looks like and may differ slightly in appearance.
Guarantee/ Warranty N/A
Pump Watts No
Type Circulation
Amp Rating 6A
Voltage 230V AC


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