The ABB PS935 is a high-performance power supply module designed for industrial automation and control systems. Engineered for reliability in demanding environments, it provides stable DC power to PLCs, sensors, and other critical components. As part of ABB’s robust power portfolio, the PS935 ensures system uptime with advanced protection features and efficient thermal management.
Key Product Specifications
- Input Voltage Range: 100–240 V AC / 110–250 V DC
- Output Voltage: 24 V DC (Adjustable)
- Output Current: 20 A
- Power Rating: 480 W
- Efficiency: >92%
- Mounting Type: DIN-rail mounting
- Dimensions: 82 mm x 130 mm x 125 mm
- Weight: 1.35 kg
- Country of Origin: Germany / Estonia (Refer to specific batch)
Application Fields
The PS935 is versatile and widely used across various heavy industries, including:
- Oil and Gas: Powering remote terminal units (RTUs) and control panels.
- Water Treatment: Ensuring continuous operation of pumping stations.
- Manufacturing: Supplying stable power to assembly line PLC systems.
- Power Generation: Supporting auxiliary control circuits in substations.
Usage Instructions
- Mounting: Snap the module onto a standard 35mm DIN rail. Ensure vertical orientation to allow for natural convection cooling.
- Wiring: Use copper cables rated for at least 75°C. Follow the terminal markings for L, N, and PE (Earth) for AC input.
- Voltage Adjustment: If a specific voltage offset is required to compensate for line loss, use the front-facing potentiometer to fine-tune the 24V output.
- Monitoring: Check the “DC OK” LED status. A green light indicates the output voltage is within the valid range.
Q&A – Frequently Asked Questions
Q: Can the PS935 be connected in parallel for higher power? A: Yes, multiple PS935 units can be connected in parallel to increase current capacity or provide redundancy, provided that the output voltages are balanced.
Q: Does the module have built-in short-circuit protection? A: Absolutely. It features electronic short-circuit and overload protection with an auto-recovery function once the fault is cleared.
Q: What is the operating temperature range? A: The module typically operates between -25°C and +70°C, though derating may apply when operating above 60°C.
Product News: Sustainability and Reliability
ABB has recently updated the firmware and component standards for the ABB PS935 series to align with new global energy efficiency directives. The latest iterations of these modules show a 5% reduction in heat dissipation compared to legacy models, significantly extending the lifespan of neighboring components in enclosed control cabinets. Furthermore, ABB has strengthened its supply chain to ensure better availability for critical infrastructure projects globally.
