Lots of differing ways and opinions on sizes to achieve the same thing.
Cant say i have the best track record with incandescent light bulbs its been 20+ years since ive used one apaet from for cars etc, but i changed to halogens and then LED because they always popped instead of just blowing the filament.
The idea of holding one whilst it potentially pops is not for me. Im sure theyve changed but, just nah!
I do like the idea of the switched circuit Al, or at least mounting the resistor to the board in a way that it can be easily used and not lost!
Pre charge resistors
Re: Pre charge resistors
3.16kw Canadian solar. roof. 3kw solis G98 mcs
12kw midea ASHP
200l hot water
3152W RE, Whitelaw Brae
Octopus agile/outgoing fixed 15p
Planned;
Hybrid system
43kwh eve batteries, 3x16 280A
6-8+kw solar, DC connected.
12kw midea ASHP
200l hot water
3152W RE, Whitelaw Brae
Octopus agile/outgoing fixed 15p
Planned;
Hybrid system
43kwh eve batteries, 3x16 280A
6-8+kw solar, DC connected.
Re: Pre charge resistors
I bought a small box and put a push button in it. This is in series with the resistor. Then that is in parallel around the main dc on off switch. Works well. I can’t remember numbers. I think about 120 ohms.
Rs online
Standard Items Ordered Reference: 173137181
Arcol, 120Ω 25W Wire Wound Chassis Mount Resistor HS25 120R J ±5%
Stock no.:160-792
Qty:1
APEM Momentary Push Button Switch, Panel Mount, SPST, 12mm Cutout, 48V ac, IP67
Stock no.:224-984
Qty:1
Rs online
Standard Items Ordered Reference: 173137181
Arcol, 120Ω 25W Wire Wound Chassis Mount Resistor HS25 120R J ±5%
Stock no.:160-792
Qty:1
APEM Momentary Push Button Switch, Panel Mount, SPST, 12mm Cutout, 48V ac, IP67
Stock no.:224-984
Qty:1