ZA2VA11 and ZA2VA12 are different due to the electronic decoding.

ZA2VA11 : Decimal + BCD

ZA2VA12 : BCD + Latch

The compatibility between ZA2VA11 and ZA2VA12 depends on the customer's application

• ZA2VA11 can decode BCD or decimal and can show the decimal point (Input 10). The value visualized is updated immediately when the input change (Input 1-2-4-8(BCD) / 1-9 (Decimal))

• ZA2VA12 can decode only BCD and can show the decimal point (Input 10). The value visualized of the input (Input 1-2-4-8(BCD)) is displayed and memorized only when the latch input (Input 6) change from 0 to 1.
• If the latch input stay at "1". If the input (1-2-4-8) change the value displayed do not change.

Title => ZA2VA12 : Harmony, Digital display body, Ø22, BCD + latch, 24 V DC

URL => https://download.schneider-electric.com/files?p_File_Name=ZA2VA12_DATASHEET_US_en-GB.pdf&p_Doc_Ref=ZA2VA12_DATASHEET&p_enDocType=Product+Data+Sheet

Title => ZA2VA11 : Harmony, Digital display body, Ø22, BCD + decimal, 24 V DC

URL => https://download.schneider-electric.com/files?p_File_Name=ZA2VA11_DATASHEET_US_en-GB.pdf&p_Doc_Ref=ZA2VA11_DATASHEET&p_enDocType=Product+Data+Sheet

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