Description
Foxboro QUINT-PS-100-240AC/24DC/20A
Technical Specifications
- Input Voltage: 100-240 VAC (universal) or 110-150 VDC.
- Output Voltage: 24 VDC (adjustable 24-28 V).
- Output Current: 20 A nominal.
- Power Rating: 480 W.
- Efficiency: >93%.
Functional Features
- SFB Technology (Selective Fuse Breaking): Delivers up to 6x nominal current for 15 ms to selectively trip standard miniature circuit breakers, isolating only the faulty branch.
- Dynamic Reserve: Provides 25% extra power reserve for short-term overloads.
- Active Current Limiting: Protects the power supply and load from damage during overloads or short circuits.
- Signal Contact: Provides a relay contact for remote monitoring of output status.
Application Scenarios
Ideal for powering PLCs, DCS controllers, motor starters, and safety systems in manufacturing, process automation, and infrastructure applications.
Performance Parameters
- Ripple: <30 mVpp.
- MTBF: >500,000 hours (at 25°C).
- Operating Temperature: -25°C to 70°C (with derating above 60°C).
Material Composition
Metal housing with high-quality internal components including electrolytic capacitors and planar transformers. Designed for long-term industrial use.
Structural Characteristics
Compact DIN rail mountable design. Features screw-clamp or spring-cage terminals (depending on exact variant), LED status indicator, and adjustment potentiometer.
Working Principle
Converts AC/DC input to regulated 24 VDC using high-frequency switching technology. Incorporates SFB technology to deliver high inrush currents for selective fuse breaking, and active current limiting to protect against sustained overloads.
Installation Requirements
Mount on standard 35 mm DIN rail. Ensure adequate clearance for heat dissipation (50 mm above/below). Use appropriately sized conductors and torque to specification.
Usage Precautions
Do not connect output in parallel with other power supplies without isolation. Verify output voltage before connecting load. Monitor temperature in enclosed cabinets.
