Siemens
Siemens 6ES7421-1EL00-0AA0 S7-400 SM 421 Input Module
Part / SKU: 1500018
Price on request
Siemens 6ES7421-1EL00-0AA0 is a SIMATIC S7-400 SM 421 isolated digital input module for monitoring high-voltage field signals.
Key Specifications
- Article number: 6ES7421-1EL00-0AA0
- Series: SIMATIC S7-400
- Module: SM 421
- Digital inputs: 32
- Input voltage: 120 V AC/DC
- Isolation: Isolated inputs
- Power loss: Approximately 6.5 W
- Dimensions: 25 × 290 × 210 mm
Suitable for S7-400 control systems that require 32 channels of 120 V AC/DC digital input. Siemens lists the product in phase-out status; confirm lifecycle, front connector, wiring, and CPU compatibility before ordering.
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