Product Introduction
The Schneider Electric STBCPS2111 Auxiliary Power Supply is a compact, dependable power module designed to support Schneider’s Advantys STB distributed I/O and automation systems. As a dedicated auxiliary supply unit, it provides stable 24 V DC power for I/O modules, ensuring reliable operation of connected field devices and control components.
Engineered for environments where consistent power delivery is essential, the STBCPS2111 offers robust performance in demanding industrial conditions. Its compact DIN‑rail mountable form factor keeps panels tidy and optimized for space, while overcurrent protection and efficient power conversion help safeguard sensitive I/O modules and controllers from electrical disturbances.
Technical Specifications
| Specification | Details |
|---|
| Manufacturer | Schneider Electric |
| Model Number | STBCPS2111 |
| Module Type | Auxiliary Power Supply |
| Product Series | Advantys STB |
| Output Voltage | 24 V DC |
| Output Current | 1.1 A |
| Power Output | 26.4 W |
| Input Voltage Range | 100–240 V AC |
| Frequency | 50/60 Hz |
| Efficiency | ≥85 % |
| Hold‑Up Time | ~10 ms (typical) |
| Overcurrent Protection | Yes |
| Short‑Circuit Protection | Yes |
| Mounting Method | DIN‑Rail |
| Protection Rating | IP20 |
| Operating Temperature | 0 °C to 55 °C |
| Dimensions (H × W × D) | 90 × 45 × 70 mm |
| Weight | Approx. 0.22 kg |
Industrial Applications
Distributed I/O Power Architecture
In decentralized control systems, this power supply provides the necessary 24 V DC feed for remote I/O modules, reducing dependence on central panel power supplies and improving modular scalability.
Machine Control Panels
Used in machine automation cabinets where isolated and stable auxiliary power is needed to drive I/O modules and sensors reliably.
OEM Equipment
OEM panel builders integrate this supply to ensure predictable current delivery for control logic, sensors, and actuator interfaces on compact automation equipment.
Building Automation Systems
In environmental control and building management cabinets, it supports I/O modules that collect and relay analog and digital field data.
Key Advantages
Stable 24 V DC Output
Delivers consistent and regulated low‑voltage power for Advantys STB I/O modules and auxiliary devices for reliable operation.
Overcurrent & Short‑Circuit Protection
Built‑in protective features enhance electrical safety and help safeguard connected automation hardware.
Compact DIN‑Rail Mount Design
Slim profile and standardized mounting keep control cabinets organized and optimized for limited space.
Wide AC Input Range
Accepts universal AC input (100–240 V) for flexible installation across a broad range of power environments.
Industrial‑Grade Build Quality
IP20 protection, thermal resilience, and stable performance make this supply ideal for industrial applications where uptime matters.
Technical FAQs
1. What output voltage does the STBCPS2111 provide?
It provides a regulated 24 V DC output.
2. What is the maximum current available?
The module supplies up to 1.1 A of output current.
3. What AC input voltage range is supported?
It accepts 100–240 V AC at 50/60 Hz.
4. Does the module include electrical protection features?
Yes — it has overcurrent and short‑circuit protection built in.
5. What is the typical power output?
The unit delivers approximately 26.4 W of regulated power.
6. How is this supply mounted?
It is designed for DIN‑rail installation inside control panels.
7. Is the unit suitable for harsh industrial environments?
It’s rated IP20 and built for indoor industrial use with stable output characteristics.
8. What is the operating temperature range?
It operates effectively between 0 °C and 55 °C.
9. Can it power both analog and digital I/O modules?
Yes — the regulated 24 V DC output supports both analog and digital modules in distributed I/O systems.
10. Where is this type of supply typically used?
It’s commonly used in distributed I/O architectures, machine control panels, OEM control systems, and building automation cabinets.
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