Siemens 6ES7521-1BH00-0AB0 6ES7522-1BH00-0AB0 Digital Input Module

The Siemens 6ES7521-1BH00-0AB0 6ES7522-1BH00-0AB0 is a high-performance digital input module designed for integration with the SIMATIC S7‑1500 and related automation systems. It operates on a 24 V DC supply with a permissible lower limit of 19.2 V, ensuring reliable signal detection under varying power conditions.This module features 16 digital input channels capable of handling a maximum counting frequency of 6 kHz with a 32-bit counting width, making it ideal for fast signal acquisition and precise event counting in industrial applications. It draws a maximum current of 20 mA with a 24 V supply, while the backplane bus provides up to 1.1 W, enabling efficient energy use and seamless integration with other system components.Engineered for industrial reliability, the 6ES7521-1BH00-0AB0 6ES7522-1BH00-0AB0 supports monitoring and processing of discrete signals from sensors, switches, and other field devices.

Model: 6ES7521-1BH00-0AB0 6ES7522-1BH00-0AB0
Product Type: Digital Input Module
CPU Compatibility: SIMATIC S7-1500
Supply voltage DC: 19.2;28.8 V
Input current at signal 1: 2.5 mA
Time delay at signal change: 0.05;20 ms
Permitted voltage at input: -30;30 V
Number of Channels: 16 digital inputs
Input Type: 24 V DC
Input Current: 5 mA typical per channel
Isolation: Channel-to-backplane galvanic isolation
Response Time: 0.5 ms typical
Diagnostics: LED indicators for each channel, overload and short-circuit detection
Operating Voltage: 24 V DC ±20%
Power Consumption: 2.5 W typical
Operating Temperature: 0°C to +60°C
Storage Temperature: –25°C to +70°C

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• Reliable Digital Signal Acquisition: The 6ES7521-1BH00-0AB0 6ES7522-1BH00-0AB0 features 16 input channels designed for high-precision, real-time process monitoring.
• High-Speed Response: A typical response time of 0.05 ms allows the 6ES7521-1BH00-0AB0 to provide nearly instantaneous control reactions for time-critical applications.
• Electrical Isolation: Channel-to-backplane galvanic isolation in the 6ES7521-1BH00-0AB0 6ES7522-1BH00-0AB0 protects the internal PLC electronics from external electrical surges.
• Integrated Diagnostics: Each channel on the 6ES7521-1BH00-0AB0 is equipped with LED indicators for immediate fault monitoring and status feedback.
• Safe Operation: Integrated short-circuit and overload protection within the 6ES7521-1BH00-0AB0 6ES7522-1BH00-0AB0 significantly reduce overall system risk.
• Flexible Configuration: The 6ES7521-1BH00-0AB0 is easily configurable via the TIA Portal, supporting features like input filtering and pulse stretching.

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Q: What is the warranty period?
A: Every piece of equipment we supply is secured by a reliable one-year limited warranty.
Q: What is the typical shipping timeline?
A: Most orders are processed and prepared for dispatch within a swift 1 to 3 business days following confirmation.
Q: Do you offer price matching?
A: Yes, we are committed to aggressively matching competitors' better quotations to ensure you receive the greatest value.
Q: What shipping options are available?
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