The current part number is “SQ2231D-51-C6.”
For the new type, there is a “1” added after the symbols for voltage, electrical entry, and manual override method.
The low-wattage type “Y” is now the standard specification, so a “Y” is no longer required in the part number.
Note) For the SQ2231D-5-C6, the product with an equivalent response time is the SQ2231BD-51-C6.

(Or None in the Case of No Switch), Port Threads: XF (G)

(Or None in the Case of No Switch), Port Threads: XF (G)

(Or None in the Case of No Switch), Port Threads: XF (G)

(Or None in the Case of No Switch), Port Threads: XF (G)

(Or None in the Case of No Switch), Port Threads: XF (G)

(Or None in the Case of No Switch), Port Threads: XF (G)

(Or None in the Case of No Switch), Port Threads: XF (G)

(Or None in the Case of No Switch), Port Threads: XF (G)

(Or None in the Case of No Switch), Port Threads: XF (G)

(Or None in the Case of No Switch), Port Threads: XF (G)

(Or None in the Case of No Switch), Port Threads: XF (G)

(Or None in the Case of No Switch), Port Threads: XF (G)

(Or None in the Case of No Switch), Port Threads: XF (G)

(Or None in the Case of No Switch), Port Threads: XF (G)

(Or None in the Case of No Switch), Port Threads: XF (G)

(Or None in the Case of No Switch), Port Threads: XF (G)

(Or None in the Case of No Switch), Port Threads: XF (G)

(Or None in the Case of No Switch), Port Threads: XF (G)

(Or None in the Case of No Switch), Port Threads: XF (G)