Schneider ASB837016 | Input Module

The Schneider ASB837016 provides reliable digital signal acquisition for the 800-Series automation platform. This input module features 16 discrete input channels for connecting field sensors and switches. It accepts 24 V DC sinking (NPN) inputs from limit switches and proximity sensors. Weighing only 0.35 kg, the Schneider ASB837016 mounts easily on a DIN rail or panel. Its dimensions measure 125 mm x 90 mm x 65 mm.

Input Specifications and Channel Features

The Schneider ASB837016 accepts 24 V DC positive logic signals from field devices. Each input channel draws 7 mA at nominal voltage for reliable signal detection. The module filters electrical noise with a fixed 3 ms input delay. Moreover, the Schneider ASB837016 includes LED indicators for each channel to show active status. Consequently, you can troubleshoot field wiring quickly without a programming terminal.

Energy Storage and Internal Components

The Schneider ASB837016 contains no internal battery for complete maintenance-free operation. It stores configuration data in non-volatile memory instead of battery backup. This module draws 150 mA from the 5 V DC backplane power supply. Additionally, it consumes 60 mA from the external 24 V DC field power supply. The Schneider ASB837016 includes 16 optocouplers for electrical isolation between rack and field. Therefore, it protects your backplane from electrical noise and voltage spikes.

Technical Specifications Table

Below are the complete technical parameters for engineers and procurement teams:

Parameter	Specification
Full Product Name	Schneider ASB837016
Product Category	800-Series Discrete Input Module
Number of Input Channels	16
Input Type	Positive logic (sinking/NPN compatible)
Rated Input Voltage	24 V DC (19.2 V to 30 V DC)
Input Current per Channel	7 mA at 24 V DC
Input Impedance	3.4 kΩ typical
Input ON Voltage	≥ 15 V DC
Input OFF Voltage	≤ 5 V DC
Input Filter Time	3 ms (fixed)
Input Response Time	< 5 ms
Channel Grouping	2 groups of 8 inputs
Isolation Type	Optocoupler (1,500 V AC)
Number of Optocouplers	16
Current Consumption (5V DC)	150 mA from backplane
Current Consumption (24V DC)	60 mA external field supply
Power Dissipation	1.1 W maximum
Energy Storage	No battery (decoupling capacitors only)
Number of Components	1 main PCB + 16 optocouplers + 1 terminal block + housing
Net Weight	0.35 kg (350 grams)
Gross Weight (packaged)	470 grams
Dimensions (H x W x D)	125 mm x 90 mm x 65 mm
Wire Size (Terminal)	AWG 24 to AWG 14 (0.2 mm² to 2.5 mm²)
LED Indicators	16 (green, one per channel) + power LED
Operating Temperature	0°C to +55°C
Storage Temperature	-40°C to +85°C
Degree of Protection	IP20
Certifications	CE, UL 508, CSA

Connector and Installation Details

The Schneider ASB837016 uses a removable screw terminal block for all field wiring. This terminal block accepts wire sizes from AWG 24 to AWG 14 for flexible cabling. The module requires an external 24 V DC power supply for input circuit operation. Connect the 24 V DC positive to the COM terminal and the negative to the 0V terminal. The Schneider ASB837016 suits limit switches, push buttons, proximity sensors, and photo-electric sensors. It works perfectly for conveyor monitoring, position sensing, and machine guarding applications. Thus, this discrete input module delivers reliable signal acquisition for demanding industrial environments.