電氣延時繼電器Auxiliary relay D-KT-KFT for time delay 0,5-3s of undervoltage release YU-MU-MBU aux. voltage 48Vdc/ac for HD4, VD4, eVD4, Vmax出口版，IEC。電氣延時裝置必須安裝在斷路器的外部。它使得斷路器可在可調的、預先設定好的時間后分閘。如果此裝置未加電，則斷路器無法合閘。電氣延時裝置必須與相同工作電壓的欠壓脫扣器配合使用。 欠壓脫扣器可與電氣延時裝置（-KT）配合使用，可防止在二次電源很短時間的暫時性下降或失電的情況下斷路器誤分閘。可調的延時時間 2）：0.5-1-1.5-2-3 s 。
1VCF339750S7902 Auxiliary relay D-KT-KFT of undervoltage release YU-MU-MBU aux. voltage 24-30Vdcfor time delay 0,5-3s for HD4-VD4-Vmax
1VCF339750S7904 Auxiliary relay D-KT-KFT of undervoltage release YU-MU-MBU aux. voltage 48Vdc/acfor time delay 0,5-3s for HD4-VD4-Vmax
1VCF339750S7905 Auxiliary relay D-KT-KFT of undervoltage release YU-MU-MBU aux. voltage 60Vdc/acfor time delay 0,5-3s for HD4-VD4-Vmax
1VCF339750S7909 Auxiliary relay D-KT-KFT of undervoltage release YU-MU-MBU aux. voltage 110-132Vdc/ac for time delay 0,5-3s for HD4-VD4-Vmax
1VCF339750S7918 Auxiliary relay D-KT-KFT of undervoltage release YU-MU-MBU aux. voltage 220-240Vdc/ac for time delay 0,5-3s for HD4-VD4-Vmax
1VCF339751R4909
1VCF339752R4909,
1VCF339752S4909,
1VCF339750R7909
1VCF369828R0909
1VCF339750R7918
1VCF369828R0918
1VCF339750R7904
1VCF369828R0904
1VCF339752R4912;
1VCF339752R4914;
1VCF339752R4939;
1VCF339752R4941;
1VCF339752R4943;
1VCF339752R4969;
1VCF339752R4971;
1VCF339752R4973,
1VCF349850S0902
1VCF349850S0903
1VCF349850S0904
1VCF349850S0905
1VCF339751R8909,
1VCF339751R8909;
1VCF339751R8912;
1VCF339751R8939;
1VCF339751R8941;
1VCF339751R8943;
1VCF339701R8969;
1VCF339751R8969;
1VCF339751R8971;
1VCF339751R8973;
1VCF329750S0913
1VCF349850S0913
1VCF339751S4909
1VCF339752S6909;
1VCF339752R6909
1VCF339752R6912;
1VCF339752R6914;
1VCF339752R6939;
1VCF339752R6941;
1VCF339752R6943;
1VCF339752R6969;
1VCF339752R6971;
1VCF339750R6973;
1VCF339752R6973
1VCF349850S0922
1VCF859800S0009
1VCF859800S0132
1VCF859800S0131
1VCF859800S0130
1VCF859800S0128
電氣延時繼電器 Auxiliary relay D-KT-KFT for time delay 0,5-3s of undervoltage release YU-MU-MBU aux. voltage 220-240Vdc/ac for HD4, VD4, eVD4, Vmax 。出口版，IEC。
1VCF339850S3902
1VCF339850S3913
1VCF339850S3922
1VCF349850S2922
1VCF349850S2913
1VCF349850S3902
1VCF349850S3913
1VCF349850S3922
1VCF349750S0909
1VCF349750S0948
1VCF339752S2918
1VCF339752S2909
1VCF339752R2909;
1VCF339752R2912;
1VCF339752R2914;
1VCF339752R2939;
1VCF339752R2941;
1VCF339752R2943;
1VCF339752R2969;
1VCF339752R2971;
1VCF339752R2973;
1VCF339702R2909;
1VCF339702R2912;
1VCF339702R2914;
1VCF339702R2939;
1VCF339702R2941;
1VCF339702R2943;
1VCF339702R2969;
1VCF339702R2971;
1VCF339702R2973;
1VCF339705R5909;
1VCF339705R5912;
1VCF339705R5914;
1VCF339705R5939;
1VCF339705R5941;
1VCF339705R5943;
1VCF339705R5969;
1VCF339705R5971;
1VCF339705R5973
1VCF339752S3909
1VCF339752S3918
1VCF339751S8948
1VCF339751S8909
1VCF339751S8918
1VCF339757S4918
1VCF339757S4948
1VCF339757S4909
1VCF339850S0948
1VCF339850S0909
1VCF339850S0918
1VCF309599S0031
