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Pierburg CWA100.2 Brushless Water Pump 20mm OD - 12v CWA100-2
£254.28 £211.90
To £263.88 £219.90
Pierburg CWA100.2 Brushless Water Pump 20mm OD - 12v CWA100-2
The Pierburg Electrical CWA coolant pumps make a significant contribution to emission control on modern engine designs. A delivery rate that is not dependent on the speed of another drive enables demand-based cooling. This reduces the power requirements whilst also cutting down on frictional loss, fuel consumption and pollutant emissions.
Electrical CWA coolant pumps offer top performance. They can be used for the main cooling of the combustion engine, as well as for cooling the fuel cell stacks of fuel cell drives.
Pierburg has made the electrical water pump ready for series production and was the world’s first series-production supplier for a leading premium vehicle manufacturer.
- Compact radial auxiliary coolant pump.
- Efficiency close to 40% at the nominal operating point.
- Demand-based cooling.
- High flow rate at a low pressure.
- Homogeneous heat dissipation.
- Improved resistance to influences that impair EMC.
| Specification | Metric | Imperial & Other |
| Liquid Temp Range | -40 to 110 °C | -40 to 230 °F |
| Ambient Temp Range | -40 to 120 °C | -40 to 248 °F |
| Hose Size | Ø 20 mm | Ø 0.787" |
| Nominal Diff. Pressure | 0.75 Bar | 10.87 Psi |
| Weight | 1 kg | 2.20 lbs |
| Voltage | 12v | |
| Maximum Current Draw | 8.5a | |
| Maximum Electrical Consumption | 102w | |
| Protection | IP67 & IP69K Rated | |
| Motor Type | Brushless Motor | |
| Manufacturer Part Number | Pierburg: 7.06754.05.0 / Mercedes: A0005000486 | |
Flow Rates
Wiring Information
| Pin | Use | |
| 1 | Ground | |
| 2 | LIN Signal | |
| 3 | PWM Signal | |
| 4 | +12v |
Connector Part Numbers
| Part | Description | Part Number | Quantity |
| Plug (Male) | Tyco 4 Way | 1-1718645-1 | 1 |
| Terminal | Kostal MLK 1.2 ELA | 32140734130 | 4 |
| Seal | Tyco MLK 1.2 ELA Seal | 967056-1 | 4 |
Plug, terminals and seals sold separately
Please ensure your supply is fused appropriately.
PWM Information
PWM Input Frequency
The PWM interface has the capability to handle frequencies between 50 to 1000 Hz.
Note: To assure that the pump awakes under PWM control, an uninterrupted high pulse of at least 3ms must be applied to the PWM input.
For Example: This is automatically achieved at a PWM frequency of 150 Hz and a duty cycle of 50% or above.
PWM Input Level
| Signal Description | Max | Min |
| V_Hi | UB + 3V* (Max 28v - 60s) | 0.6 UB |
| V_Low | 0.4 UB | Ground -3V* |
Duty Cycle vs Speed
| Mode | Duty Cycle | Speed | Description |
| 0 | 0% - 1% | 0 rpm | Stop |
| 1 | 1% - 7% | Default 6776 rpm | Emergency Run |
| 2 | 8% - 12% | 0 rpm | Stop and Error Reset |
| 3 | 13% - 85% | Min - Max | Controlled Operation |
| 4 | 86% - 97% | Max | Maximum Operation |
| 5 | 98% - 100% | Default 6776 rpm | Emergency Run |
The tolerance of the pump's interpretation of the PWM signal can vary +/-2% of the duty cycle.
Duty Cycle
The percentage duty cycle is represented by the relationship of Thigh to TPeriod.
Duty cycle is PWM.
Duty Cycle % = Thigh / (Tlow + Thigh).
Dimensions
ATTENTION
- The pump can be installed in either a horizontal or vertical position. To avoid air-locks when mounted horizontally, the outlet should be turned in such a way that it is directed upwards or is placed on the upper side of the pump body.
| Voltage | 12v DC |
|---|---|
| Manufacturer | Pierburg |
Shipping Information & Charges
VAT is included on the UK prices below, no VAT is applicable on ROW prices.
European Customers: We offer a next working day delivery service to most European countries, please get in touch for pricing.
ROW Customers: If you would like a more accurate shipping quote or a faster service via DHL please get in touch with your requirements.
United Kingdom & Northern Ireland
| Mainland | ||
| Service | GBP 0 - 50 (inc VAT) | GBP 50+ (inc VAT) |
| RM Second Class | 3.60 | N/A |
| RM First Class | 4.20 | N/A |
| DPD Next Working Day | 9.00 | 9.00 |
| DHL UK Next Working Day | 8.75 | 8.75 |
| DPD Next Working Day by 12am | 16.50 | 16.50 |
| DPD Saturday All Day | 15.00 | 15.00 |
| DPD Saturday by 12am | 39.50 | 39.50 |
| DPD Sunday All Day | 19.50 | 19.50 |
| Scottish Highlands & Islands, Channel Isles, Scilly Isles, Isle Of Man, Isle of Wight | ||
| Service | GBP 0 - 50 (inc VAT) | GBP 50+ (inc VAT) |
| RM First Class | 4.20 | N/A |
| DPD / DHL Two Day | 17.30 | 17.30 |
Europe
DHL Tracked Delivery. Approx 2 - 7 days depending on distance from the UK.
| Country | Cost in GBP |
| AUT - Austria | 30.00 |
| BEL - Belgium | 25.00 |
| BIH - Bosnia and Herzegovina | 50.00 |
| BGR - Bulgaria | 45.00 |
| HRV - Croatia | 35.00 |
| CZE - Czech Republic | 35.00 |
| CHE - Switzerland | 42.00 |
| CYP - Cyprus | 75.00 |
| DNK - Denmark | 30.00 |
| EST - Estonia | 35.00 |
| FIN - Finland | 35.00 |
| FRA - France | 35.00 |
| DEU - Germany | 28.00 |
| GIB - Gibraltar | 46.00 |
| GRC - Greece | 40.00 |
| HUN - Hungary | 35.00 |
| IRL - Ireland | 25.00 |
| ISL - Iceland | 50.00 |
| ITA - Italy | 32.00 |
| LVA - Latvia | 46.00 |
| LTU - Lithuania | 45.00 |
| LUX - Luxembourg | 26.00 |
| NLD - Netherlands | 26.00 |
| NOR - Norway | 45.00 |
| POL - Poland | 35.00 |
| PRT - Portugal | 35.00 |
| ROU - Romania | 45.00 |
| SRB - Serbia | 45.00 |
| SVN - Slovenia | 35.00 |
| SVK - Slovakia | 35.00 |
| ESP - Spain | 30.00 |
| SWE - Sweden | 35.00 |
Rest Of World
Below are the most popular countries we ship to world-wide. If your country is not listed please get in touch for a quote.
DHL Express: We offer shipping via DHL, please get in touch for pricing and more information on their Worldwide 2-7 day services.
| Country | Cost in GBP |
| BN - Brunei | 75.00 |
| BRA - Brazil | 95.00 |
| CAN - Canada | 60.00 |
| ISR - Israel | 95.00 |
| JAM - Jamaica | 50.00 |
| JPN - Japan | 70.00 |
| KEN - Kenya | 60.00 |
| MLT - Malta | 58.00 |
| MYS - Malaysia | 50.00 |
| NZL - New Zealand | 52.00 |
| ZAF - South Africa | 49.00 |
| KOR - South Korea | 70.00 |
| THA - Thailand | 55.00 |
| SGP - Singapore | 90.00 |
| By Order Value: | GBP 0 - 149.99 | GBP 150 - 399.99 | GBP 400+ |
| USA - United States of America | 35.00 | 49.00 | 70.00 |
| By Order Value: | GBP 0 - 50 | GBP 50 - 120 | GBP 120+ |
| AUS - Australia | 40.00 | 60.00 | 80.00 |
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