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SIMATIC S7-400 SM 421, DI 16x24 V DC Input delay 0.05 ms
| Unit: | pcs |
| Code 1: | SI_6ES7421-7BH01-0AB0 |
| Code 2: | 6ES7421-7BH01-0AB0 |
| Warranty: | 12 |
| Warranty for companies: | 12 |
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