Schneider ASB872200 | Output Module 8 Channels 24V DC 0.5A

The ASB872200 controls DC loads from the Modicon 800 PLC system. This output module provides eight independent channels for field actuation. It mounts directly into any standard Modicon 800 series rack slot. Consequently, you can drive solenoids, relays, and indicator lights reliably.

You can rely on this module for fast and silent output switching. The ASB872200 uses solid-state transistor technology for each channel. Each output includes built-in short-circuit and overload protection circuits. Therefore, this module protects your PLC from unexpected field wiring faults.

Output Specifications and Channel Details

The module delivers 0.5 amps per channel at 24V DC nominal. Each output on the ASB872200 switches independently without channel interaction. A common return terminal serves all eight outputs for simplified wiring. The module responds to logic commands within 0.5 milliseconds typically.

Outputs feature automatic thermal shutdown during excessive current draw. The ASB872200 recovers operation when the temperature returns to normal. An LED indicator on the front panel shows each channel’s active state. Below is a complete breakdown of its technical characteristics.

Specification	Detail
Number of Outputs	8 (Solid-state transistor)
Output Type	Sourcing (PNP)
Output Voltage	24V DC nominal (10 to 30V DC)
Output Current per Channel	0.5 A (Maximum)
Total Output Current	4 A (Maximum, all channels)
Output Response Time	0.5 ms (Typical)
Protection Features	Short-circuit, overload, thermal
Leakage Current (OFF State)	< 0.1 mA
Voltage Drop (ON State)	< 1.5V at 0.5A
Dimensions (W x H x D)	35 mm x 130 mm x 115 mm
Weight	0.28 kg (280 grams)
Power Draw (5V)	100 mA
Power Draw (24V load)	Depends on connected loads
Energy Storage	None (No battery or capacitor)

Interface and Field Wiring Connections

A removable screw terminal block accepts all output field wiring. The ASB872200 uses a 20-pin connector for secure signal termination. Each terminal accepts wire sizes from 0.2 to 2.5 mm². Green LEDs illuminate when the corresponding output remains active.

You must supply external 24V DC power to the common terminal. The ASB872200 does not generate output power from the backplane alone. A built-in fuse protects the entire output group from major faults. Therefore, installation requires proper attention to external power connections.

Operational Benefits for Control Applications

This output module drives small inductive loads without external suppression. The ASB872200 includes internal flyback diodes for each channel. It handles LED indicators, small contactors, and pilot relays effectively. Engineers trust this module for reliable machine control in factory automation systems.