Phoenix Contact QUINT-PS/1AC/24DC/5 2866750 PSU for QUINT

Phoenix Contact QUINT-PS/1AC/24DC/5 2866750 Power Supply for QUINT

The Phoenix Contact QUINT-PS/1AC/24DC/5 2866750 is a 24 VDC / 5 A single-phase DIN-rail power supply engineered for seamless system integration within the QUINT modular control system architecture. Unlike standalone power conversion units, this PSU is designed from the ground up to serve as the foundational energy layer of a layered industrial automation system — delivering stable, conditioned DC power to every upstream and downstream component across the control hierarchy. Whether deployed in a compact machine cabinet or a large-scale distributed control panel, the QUINT-PS/1AC/24DC/5 2866750 ensures that CPUs, I/O modules, communication gateways, HMI panels, and field devices all receive the consistent voltage and current they require for deterministic, fault-tolerant operation.

In modern industrial automation, power architecture is not an afterthought — it is the backbone of system reliability. The QUINT-PS/1AC/24DC/5 2866750 integrates directly into Phoenix Contact’s QUINT ecosystem, providing active power boost capability that delivers up to 200% of rated current for 12 milliseconds during startup surges, ensuring that downstream loads such as solenoid valves, motor starters, and communication modules initialize correctly without causing nuisance tripping or voltage sag across the bus. This makes it an ideal companion for high-inrush applications common in process control, packaging lines, and water treatment automation.

Product Specification Table

System Compatibility Notes

The QUINT-PS/1AC/24DC/5 2866750 does not operate in isolation — it is the energy foundation upon which a complete, layered control system is built. In a typical QUINT-based automation cabinet, this power supply feeds the 24 VDC bus that powers the ILC 150 ETH or ILC 170 ETH 2TX inline controller at the control layer, ensuring the CPU receives clean, regulated power free from transient disturbances that could cause program faults or watchdog resets.

At the I/O layer, the PSU supplies the IB IL 24 DI 16-PAC digital input modules and IB IL 24 DO 16-PAC digital output modules mounted on the Inline terminal rail, where consistent 24 VDC is critical for accurate signal acquisition and reliable actuator switching. Any voltage deviation at this layer can result in false input readings or incomplete output switching — both of which are unacceptable in safety-critical process environments.

For communication integrity, the QUINT-PS/1AC/24DC/5 2866750 powers FL SWITCH SFN 5TX unmanaged Ethernet switches and RAD-ISM-900-EN-BD wireless gateways that form the network layer of the control architecture. These devices require stable 24 VDC with minimal ripple to maintain deterministic Ethernet/IP or PROFINET communication cycles without packet loss or jitter.

At the human-machine interface layer, the PSU supports TP 3057T or TP 070T touch panel HMIs, which demand both stable voltage and sufficient current headroom during display backlight startup. The QUINT power boost feature is particularly valuable here, preventing HMI brownout during simultaneous system startup sequences.

For redundancy-critical applications, the QUINT-PS/1AC/24DC/5 2866750 is paired with the QUINT-DIODE/12-24DC/2X10/1X20 redundancy module, enabling dual-PSU configurations where a second QUINT power supply operates in hot-standby mode. This architecture eliminates single points of failure at the power layer — a requirement in continuous process industries such as petrochemical refining, pharmaceutical manufacturing, and power generation.

Terminal connectivity throughout the cabinet is managed by ST 2,5/ 5-L-7,62 spring-cage terminal blocks and PTFIX 6/18X2,5-F distribution terminal blocks, which interface directly with the PSU output terminals and distribute 24 VDC to field devices, sensors, and relay modules. The PLC-RSC-24DC/21-21 relay coupling modules at the execution layer receive their coil supply from this same 24 VDC bus, ensuring consistent switching performance across all output channels.

Industrial Application Notes

The QUINT-PS/1AC/24DC/5 2866750 is deployed across a wide range of industrial sectors where system architecture consistency and long-term power reliability are non-negotiable requirements.

In manufacturing and packaging automation, this PSU powers the control cabinets of high-speed filling lines, labeling machines, and robotic assembly cells, where frequent motor starts and solenoid cycling create demanding inrush current profiles. The active power boost ensures that downstream contactors and servo drives receive adequate startup current without tripping upstream circuit breakers.

In water and wastewater treatment, the QUINT-PS/1AC/24DC/5 2866750 is installed in remote pump station panels and SCADA-connected RTU cabinets, where it must operate reliably across wide ambient temperature ranges and humid environments. Its IP20 enclosure and -25 °C to +70 °C operating range make it suitable for outdoor-rated enclosures with appropriate cabinet thermal management.

In power distribution and substation automation, this PSU provides the auxiliary 24 VDC supply for protection relay panels, IED communication modules, and bay controller units, where power quality directly affects protection system response time and fault recording accuracy.

In oil, gas, and petrochemical process control, the QUINT-PS/1AC/24DC/5 2866750 is integrated into Ex-rated control panels (with appropriate barriers) supplying intrinsically safe field instruments, HART multiplexers, and fieldbus segment couplers. Its high efficiency rating minimizes heat dissipation inside sealed enclosures, reducing thermal stress on adjacent components.

In mining and metallurgical applications, where vibration, dust, and wide temperature swings are constant challenges, the robust construction and DIN-rail mounting of this PSU ensure mechanical stability and ease of replacement during scheduled maintenance shutdowns — minimizing mean time to repair (MTTR) and maximizing system availability.

Product Compatibility FAQ

Q1: Is the QUINT-PS/1AC/24DC/5 2866750 compatible with Phoenix Contact’s QUINT redundancy modules for dual-PSU architectures?
Yes. This PSU is fully compatible with the QUINT-DIODE/12-24DC/2X10/1X20 redundancy module, which enables true parallel redundancy with automatic load sharing and failover. In a dual-PSU configuration, both units operate simultaneously, and the redundancy module ensures seamless switchover in the event of a single PSU failure — with no interruption to the 24 VDC bus and no impact on connected control system components. This architecture is recommended for all Tier 1 and Tier 2 process control applications where unplanned downtime carries significant operational or safety consequences.

Q2: What is the recommended approach for integrating this PSU into an existing QUINT Inline controller system during a panel upgrade or expansion?
The QUINT-PS/1AC/24DC/5 2866750 is designed for direct DIN-rail installation alongside existing QUINT Inline components. During a panel upgrade, the PSU can be added to an existing 24 VDC bus segment without requiring changes to the controller program or I/O configuration, provided the total connected load does not exceed the 5 A rated output. For larger expansions, a second QUINT PSU with a redundancy module should be considered. Commissioning requires only voltage output adjustment (if deviating from the factory 24 VDC default) and verification of the signaling relay output connection to the controller’s digital input for remote power fault monitoring.

Q3: What does the warranty terms confirmed during quotation cover, and what is the process for warranty claims?
The warranty terms confirmed during quotation covers all manufacturing defects, component failures, and performance deviations from the published specification under normal operating conditions. It does not cover damage resulting from incorrect installation, overvoltage events beyond the specified input range, or physical damage during handling. To initiate a warranty claim, contact our technical support team with the product serial number, proof of purchase date, and a description of the observed fault. Replacement units are dispatched upon fault confirmation, and defective units are returned for failure analysis. Our warranty process is designed to minimize system downtime and ensure continuity of your control architecture.