Uninterrupted Power for Heavy Automation: The QUINT-PS 40A
Selective Fuse Breaking (SFB) Technology
The Phoenix Contact 2866789 is equipped with the revolutionary Selective Fuse Breaking (SFB) technology. In industrial power distribution, a short circuit on a single branch can often pull down the entire DC bus if the power supply cannot provide enough peak current to trip the secondary fuse. The QUINT-PS/1AC/24DC/40 provides up to 6 times the nominal current for 12 milliseconds, ensuring that individual circuit breakers trip selectively. This capability prevents system-wide shutdowns, isolating faults to a specific branch while keeping the rest of the automation infrastructure operational and safe.
Preventative Function Monitoring and Diagnostics
System availability is the cornerstone of the QUINT series. The 2866789 features advanced preventative function monitoring. The unit continuously evaluates the output voltage and current, providing early warning signals before a critical error occurs. This is communicated through a "DC OK" signaling output and a clear LED bar graph on the front panel. By monitoring the actual load on the power supply, maintenance teams can identify if the system is approaching its capacity limit due to component aging or equipment additions, allowing for scheduled upgrades rather than reactive repairs.
Dynamic Power Reserve: POWER BOOST
Handling high inrush currents is a common challenge when starting motors or energizing large capacitive loads. The Phoenix Contact 2866789 offers a permanent POWER BOOST, providing up to 45A of continuous current at ambient temperatures up to 40°C. This eliminates the need to over-dimension the power supply for peak loads, saving space on the DIN rail and reducing overall system costs. The unit’s efficiency exceeds 92%, minimizing heat dissipation within the control cabinet and extending the service life of all surrounding electronic components.
Robust Hardware for Global Industrial Standards
The QUINT-PS/1AC/24DC/40 is built to operate in the most demanding environments globally. It features a wide-range input (85-264V AC), making it compatible with all major power grids. The internal components are protected against surge voltages and feature high dielectric strength. With a MTBF (Mean Time Between Failures) of over 500,000 hours, this power supply is the backbone of critical infrastructure in the automotive, oil and gas, and water treatment sectors. Its rugged metal housing and secure DIN rail mounting ensure mechanical stability under high vibration and shock conditions.
