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6ES7521-1BH00-0AB0 Siemens
Original price
$314.97
-
Original price
$389.85
Original price
$314.97
$314.97
-
$389.85
Current price
$314.97
Trusted By
Product Details
Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.
Product Overview
The Siemens 6ES7521-1BH00-0AB0 is a SIMATIC S7-1500 SM 521 digital input module, designated DI 16x24 V DC HF. It provides sixteen digital input channels (two of which can function as high-speed counters) for integration into S7-1500 automation systems. Configurable for standard, counter, MSI and interrupt functions, it supports diagnostics, I&M data, and prioritized startup. Typical use cases include discrete signal acquisition from sensors or switches in factory automation and process control applications.
Best Suited For
- Discrete signal monitoring in S7-1500 control racks
- High-speed counting applications (up to 6 kHz, two channels)
- Diagnostic-aware installations requiring I&M and front-connector interrupt
- Standard factory automation input acquisition
Digital inputs
16
High-speed counter channels
2
Supply voltage
24 V DC
Current consumption (max.)
20 mA
Power dissipation (typ.)
2.6 W
Technical Specifications
I/O & Electrical
Number of digital inputs
16
High-speed counter channels
2
Input voltage (rated)
24 V DC
Input voltage range
19.2 V to 28.8 V DC
Input current (max.)
20 mA
Communication & Power
Backplane bus power consumption
1.1 W
Power loss (typ.)
2.6 W
Physical & Environmental
Dimensions (W×H×D)
35 mm × 147 mm × 129 mm
Weight
240 g
Isolation test voltage
707 V DC
Ambient temperature (horizontal)
-30 °C to 60 °C
Ambient temperature (vertical)
-30 °C to 40 °C
Certifications
EU Declaration of ConformityNKRINARMRSCCSKR
