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LS-77700 Series Single-Point Level Switches perform in liquids with specific gravities as low as 0.45; switches protrude into tank less than 3 inches (76 mm).
Yes, very low currents (< 5ma) can prevent “cleaning” of the contacts or not have enough energy to maintain low contact resistance. 5ma is likely a good minimum for our standard 20 VA switch. But you also want enough voltage. Approximately, 5V, 5ma is a good minimum. For low current switching we recommend a 10 VA reed switch which can better handle lower loads. (1ma for example).
What is the life expectancy of a reed switch?
A reed switch is extremely rugged and designed to operate reliably for many years, under ideal conditions, up to about 2 million cycles. To achieve maximum service life, reed switches benefit from protected electrical supply.
LS-700 Series Multi-Point Level Switch is a compact unit that features the rugged durability of stainless steel or brass construction in a lightweight package. It is ideal for restricted spaces, including tanks less than 4 feet (1.22 m). U.L....
