The Schneider ASB872100 delivers robust digital output control for automated systems. This module provides 16 discrete channels with a 24 VDC nominal voltage. Each channel supports 0.5 A of continuous current, offering 8 A total capacity. Built-in short-circuit and overload protection secures each output individually. This design reduces unplanned downtime and protects your connected field devices.
Compact Dimensions and Durable Construction
The module measures 105 mm in height, 85 mm in depth, and 40 mm in width. Its slim profile optimizes space within crowded control cabinets. Weighing only 0.32 kg, the ASB872100 simplifies handling during installation. A rugged thermoplastic housing shields internal electronics from dust and moisture. This enclosure meets IP20 standards for safe indoor panel mounting.
Wiring Interfaces and Status Indication
A 28‑pin spring‑clamp terminal block ensures secure, vibration‑resistant wiring connections. This terminal accepts wire gauges from 0.2 mm² to 2.5 mm². Front‑panel LED indicators provide continuous visual feedback for each channel. These LEDs also show supply status and internal fault conditions clearly. An integrated backplane bus interface enables fast data exchange with the controller.
Energy Buffering and Power Specifications
An internal 47 µF electrolytic capacitor sustains output states during brief power interruptions. This capacitor offers a hold‑up time of 10 ms, ensuring stable operation. The Schneider ASB872100 draws only 120 mA from the backplane bus. It also needs a separate 24 VDC ±10% supply for the output circuits. Total power dissipation reaches 4.2 W under full load, minimizing cabinet heat.
Internal Architecture and Component Details
Sixteen independent output drivers feature optocoupler isolation for signal integrity. This isolation guarantees 1500 VAC dielectric strength between bus and field sides. A dedicated watchdog timer constantly monitors the communication link. An onboard EEPROM stores calibration data and configuration settings reliably. The printed circuit board contains 128 resistors and 64 ceramic capacitors. This dense component layout ensures long‑term performance and durability.
Environmental Limits and Regulatory Compliance
The module operates flawlessly from ‑25 °C to +70 °C ambient temperatures. It also tolerates 5 % to 95 % relative humidity without condensation. The ASB872100 fully complies with IEC 61131‑2 and UL 508 standards. These certifications guarantee safe integration into global industrial systems.
| Specification | Detail |
|---|---|
| Output Channels | 16 (digital, 24 VDC) |
| Channel Current | 0.5 A (continuous) |
| Total Output Capacity | 8 A |
| Dimensions (H × W × D) | 105 mm × 40 mm × 85 mm |
| Weight | 0.32 kg |
| Terminal Block | 28‑pin spring‑clamp |
| Wire Gauge Range | 0.2 – 2.5 mm² |
| Energy Buffer | 47 µF capacitor (10 ms hold‑up) |
| Bus Current Draw | 120 mA |
| External Supply | 24 VDC ±10 % |
| Power Dissipation | 4.2 W |
| Isolation Voltage | 1500 VAC |
| Temperature Range | ‑25 °C to +70 °C |
| Humidity Range | 5 % – 95 % RH (non‑condensing) |
| Standards | IEC 61131‑2, UL 508 |
| Protection Rating | IP20 |
Details
| Weight | 0.32 kg |
|---|---|
| Dimensions | 105 × 40 × 85 mm |
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