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| Product design type | Glandless premium high-efficiency pump | Glandless premium high-efficiency pump | Existing pump |
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| Description | |
| Product description | Stratos PICO-Z 25/0,5-6 | Stratos PICO-Z 25/0,5-4 | ALPHA2 25-50 N 130 |
| Article number | 4255434 | 4255433 | 99411286 |
| Series | Wilo-Stratos PICO-Z | Wilo-Stratos PICO-Z | - |
| Mains connection | 1~230 V ±10%, 50/60 Hz | 1~230 V ±10%, 50/60 Hz | - |
| Port-to-port length | 180 mm | 180 mm | 130 mm |
| Pump connection | G 1½ | G 1½ | - |
| Pump connection (alternative designation) | RP 1 | RP 1 | - |
| DN 25 | DN 25 | - |
| Display | Graphic colour display (2 inches) | Graphic colour display (2 inches) | - |
| Comment | Change piping | Change piping | - |
| Function | |
| Control mode | Δp-c for constant differential pressure | Δp-c for constant differential pressure | - |
| T-const. for constant temperature control | T-const. for constant temperature control | - |
| Constant speed (n-const.) | Constant speed (n-const.) | - |
| Special features of the series | Key locking function | Key locking function | - |
| Reset function for electricity meter | Reset function for electricity meter | - |
| Reset function to factory setting | Reset function to factory setting | - |
| Qmin for T const. control mode | Qmin for T const. control mode | - |
| Automatic detection of thermal disinfection | Automatic detection of thermal disinfection | - |
| Display | Setpoint | Setpoint | - |
| Actual delivery head | Actual delivery head | - |
| Actual volume flow | Actual volume flow | - |
| Actual power consumption | Actual power consumption | - |
| Energy consumption | Energy consumption | - |
| Actual speed | Actual speed | - |
| Manually activated restart or pump venting function | Manually activated restart or pump venting function | - |
| Warning messages in plain text (display status: yellow) | Warning messages in plain text (display status: yellow) | - |
| Error messages in plain text (display: red) | Error messages in plain text (display: red) | - |
| Control mode | Control mode | - |
| Active influences (e.g. STOP) | Active influences (e.g. STOP) | - |
| Pump venting function | Manual | Manual | - |
| Dry-running detection | yes | yes | - |
| Equipment | |
| Thermal insulation shell | Yes | Yes | - |
| Quick electrical connection | Wilo Connector | Wilo Connector | - |
| Blocking-current proof motor | yes | yes | - |
| Key lock | yes | yes | - |
| Operating elements | Green button and back button | Green button and back button | - |
| Connectivity | |
| Analogue signal as standard | 0-10 V (via BMS Connect module accessories) | 0-10 V (via BMS Connect module accessories) | - |
| Digital output | SSM/SBM (via BMS Connect module accessories) | SSM/SBM (via BMS Connect module accessories) | - |
| Digital input | Ext. OFF/Ext. MIN/ Ext. MAX (via BMS Connect module accessories) | Ext. OFF/Ext. MIN/ Ext. MAX (via BMS Connect module accessories) | - |
| Bus communication via additional accessories | Modbus RTU | Modbus RTU | - |
| Access via the Wilo-Assistant app | Via accessory Wilo-Smart Connect Module BT | Via accessory Wilo-Smart Connect Module BT | - |
| wire data exchange and remote operation | Via accessories Wilo-Smart Connect Module BT | Via accessories Wilo-Smart Connect Module BT | - |
| Motor data | |
| Phases | 1 | 1 | 1 |
| Mains connection | 1~230 V, 50/60 Hz | 1~230 V, 50/60 Hz | 1~230 V, 50 Hz |
| Rated power | 30 W | 15 W | - |
| Min. speed | 700 1/min | 700 1/min | - |
| Max. speed | 4200 1/min | 3400 1/min | - |
| Power consumption | 3 W | 3 W | - |
| Power consumption | 40 W | 20 W | - |
| Emitted interference | EN 61000-6-3 | EN 61000-6-3 | - |
| Interference resistance | EN 61000-6-2 | EN 61000-6-2 | - |
| Electromagnetic compatibility | EN 61800-3 | EN 61800-3 | - |
| Insulation class | F | F | - |
| Protection class | IPX4D | IPX4D | - |
| Materials | |
| Material | 1.4409 | 1.4409 | - |
| Impeller | PPO-GF30 | PPO-GF30 | - |
| Shaft | Oxide ceramic | Oxide ceramic | - |
| Bearing | Carbon-graphite | Carbon-graphite | - |
| Pipe connection | |
| Inlet connection | G 1½ | G 1½ | G 1½ |
| PN connection on suction side | PN 10 | PN 10 | PN 10 |
| Outlet connection | G 1½ | G 1½ | G 1½ |
| PN connection on discharge side | PN 10 | PN 10 | PN 10 |
| Dimension, weight | |
| Length with packaging | 194 mm | 194 mm | - |
| Length | 180 mm | 180 mm | - |
| Height with packaging | 121 mm | 121 mm | - |
| Height | 115 mm | 115 mm | - |
| Width with packaging | 213 mm | 213 mm | - |
| Width | 164 mm | 164 mm | - |
| Gross weight, approx. | 2,1 kg | 2,1 kg | - |
| Net weight, approx. | 1,8 kg | 1,8 kg | - |
| Ordering information | |
| Product description | Stratos PICO-Z 25/0,5-6 | Stratos PICO-Z 25/0,5-4 | ALPHA2 25-50 N 130 |
| Brand | Wilo | Wilo | Grundfos |
| EAN number | 4062679266084 | 4062679266077 | - |
| Article number | 4255434 | 4255433 | 99411286 |
