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The 6ES7421-1FH20-0AA0 is SIMATIC S7-400, digital input module.SIMATIC S7-400, digital input SM 421, isolated 16 DI; UC 120/230V Inputs according to IEC1131-2 Type 2.
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6ES7421-1FH20-0AA0 Data sheet
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Both product lines stand out with maximum quality and reliability.
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Moreover, their high degree of functionality offers optimum safety in case of power failures.Combined with other SITOP add-on modules
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your system can be protected against all external impacts and precisely tailored to special safety.
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Award-winning service
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More than 25 in stock
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Full 12-month warranty
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We deliver worldwide
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sales7@amikon.cn 
86-18965423501 
86-18965423501 
AMKPLC 
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