4PDT

4PDT

(electricity)
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As I recall, a flip-flop took two 2PDT relays and a binary adder took two 4PDT relays in my brute-force logic circuit.
For example, a 4PDT switch could support four-wire or Kelvin-connected, Ohms measurement on two components.
Offering dual and quad lit displays in various SPST to 4PDT switch functions, the 644-2100 series pushbutton switch can replace up to 4 individual switches with multifunction capability.
Cube relays are available in 24, 120, and 240 VAC and 24 VDC models (1PDT, 2PDT+ 3PDT, or 4PDT).
The RoHS-compliant devices offer coil voltages ranging from 6 VDC to 220 VDC and 6 VAC to 240 VAC, and contact arrangements from SPST to 4PDT. The components demonstrate an electrical life of 100k cycles, mechanical life from 10m to 20m cycles, and min.
The PR2 Series uses flat pin, "ice-cube-style" general-purpose relays in 10A DPDT and a 5A per pole, 4PDT version.
Available with DPDT or 4PDT switch function, it offers both momentary and latching styles.
Reed relays are much more expensive in SPDT, DPDT, 3PDT and 4PDT configurations.