If you're contemplating to build one or more ELCs - here's what parts costs you can expect.
Explanations:
- "without casing" assumes that the ELC is integrated into an existing switching cabinet, or the switching cabinet is low-cost self-made
- "small batch" assumes that you either use prototyping drilled solder board, or you have a run of 10 or more PCBs, so the cost for each PCB gets much lower. Also you need to buy things like the MCU programmer only once. See also remotehydrolight price calculation
- remotehydrolight 60kW: price of 2 units minus programmer
hydrocontrol
- "fully equipped": see the additional components in a hydrocontrol below
- "barebones hydrocontrol": see below
variable costs: roughly 60-100 EUR per 10kW/230V, or 6-10 EUR per kW
Parts costs in EUR/USD
| |
kW
|
2 |
4
|
10
|
15
|
20
|
30/36
|
60
|
|
|
|
|
| remoteydrolight |
including programmer (24 EUR) and PCB price 20 EUR more, if you only make one
|
185 |
195 |
220 |
235
|
250
|
310
|
600 |
|
|
|
|
| |
small batch with casing
|
140 |
150
|
175
|
190
|
205
|
265
|
530 |
|
|
|
|
| |
small batch no casing
|
100 |
110
|
135
|
150 |
165 |
225
|
450 |
|
|
|
|
| hydrocontrol |
fully equipped, but no options, only building one piece
|
230 |
240
|
285
|
310
|
335
|
390
|
600
|
|
|
|
|
| |
barebones small batch with casing
|
166 |
176
|
221
|
246
|
271
|
326
|
536
|
|
|
|
|
| |
barebones small batch no casing
|
126 |
136 |
181
|
206
|
231
|
286
|
486
|
|
|
|
|
| powerflow |
http://fastec.co.nz/fastec-powerflow/ FINISHED PRODUCT
|
|
|
|
|
approx. 1000 USD
|
|
|
|
|
|
|
| Manfred Mornhinweg |
with casing, approx.
|
|
|
|
|
190 |
|
|
|
|
|
|
|
no casing
( finished product including casing: approx. 1000 USD. Design not public.)
|
|
|
|
|
150
|
|
|
|
|
|
|
simplified hydrocontrol
|
doesn't exist yet
|
|
|
|
|
220 |
|
|
|
|
|
|
details for the price difference between remotehydrolight and fully equipped hydrocontrol on the basis of a 2kW unit
additional/different components compared to remoteydrolight
|
|
| Mains filter schaffner fn2090 |
18 |
| Display |
6 |
| Keypad |
2 |
| bigger PCB |
16 |
| optocoupler |
0,52 |
| switching power supply |
3 |
| 5 relays + driver parts+ connectors |
10 |
| temperature sensors |
0,6 |
| arduino mega |
30 |
| triac tic263m |
1,7 |
|
|
| price difference |
87,82 |
Barebones hydrocontrol
Ways to bring the price of the hydrocontrol down:
- Removing the mains filter and using an R-C filter to neutral like the remoteydrolight - EMI (electromagnetic interference) is not as good, but probably acceptable -> -18EUR
- An arduino mega clone can be used, which is more like 10 EUR compared to . the orginal for 30 EUR -> -20EUR
- with a custom PCB board, which could be made smaller, you could save another - 16 EUR.
- You could leave the relays away, if not needed. - 10 EUR
---------------------------
Total price savings: 64 EUR
With all these price savings, the price difference gets down to 24 EUR. For these 24 EUR, you get a configurable ELC with display, keypad, optocoupler, triac with higher di/dt, discrete power supply, temperature sensors. |
|
