Phoenix Contact 2866789 QUINT-PS/1AC/24DC/40

Product Details

2866789 QUINT-PS/1AC/24DC/40 Product Description

The Phoenix Contact 2866789 QUINT-PS/1AC/24DC/40 is engineered as the backbone power source within a fully integrated industrial control architecture. Its 960 W output capacity and Selective Fuse Breaking (SFB) technology make it the preferred choice for powering complex multi-tier automation platforms where power quality, load selectivity, and system uptime are non-negotiable.

In a typical QUINT-based control cabinet, this power supply feeds the 24 VDC bus that energizes the complete control layer. The Phoenix Contact AXL F BK PN — a PROFINET bus coupler for the Axioline F I/O system — draws its logic and field power directly from this bus, enabling deterministic I/O scanning across distributed analog and digital modules such as the AXL F DI16/1 and AXL F AO4/1. The QUINT-PS/1AC/24DC/40's SFB boost current ensures that even a short-circuit on a downstream I/O branch trips the branch fuse selectively, leaving the rest of the control system fully operational.

At the communication layer, the FL SWITCH SMCS 8TX — Phoenix Contact's managed industrial Ethernet switch — is powered from the same 24 VDC rail, maintaining PROFINET and Modbus TCP/IP ring topology integrity. The power supply's DC OK signaling contact feeds directly into the ILC 2050 BI controller's digital input, enabling the PLC to log power events and trigger redundancy switchover logic without any additional relay module.

For HMI integration, the TP 3057T operator panel connects to the same 24 VDC bus. The QUINT-PS/1AC/24DC/40's low output ripple (<50 mVpp) ensures stable backlight and touchscreen operation even under dynamic load changes caused by simultaneous actuator switching. The QUINT BUFFER 24DC/40 — a capacitive buffer module — can be installed in series to provide bridging time during brief mains interruptions, protecting the ILC controller's runtime state and preventing uncontrolled shutdowns.

At the protection layer, the QUINT-DIODE/40 redundancy module allows two QUINT-PS/1AC/24DC/40 units to operate in parallel redundancy (1+1), with automatic load sharing and failover. This architecture is mandatory in process industries such as oil & gas, chemical, and water treatment where a single power supply failure cannot be tolerated. The TRABTECH PT 2X2-24DC-ST surge protection terminal blocks are installed at the 24 VDC bus entry point to protect against transient overvoltages from inductive switching loads.

For terminal and wiring infrastructure, Phoenix Contact CLIPLINE complete terminal blocks — including the PT 2.5 and PTFIX series — are used throughout the cabinet, ensuring consistent wire management and color-coded circuit identification. The QUINT-PS/1AC/24DC/40's wide output voltage adjustment range (18–29.5 VDC) allows fine-tuning to compensate for long cable runs to remote I/O stations, maintaining signal integrity across the entire field wiring network.

In drive and motion control applications, the ACOPOSmicro servo drive (or equivalent 24 VDC logic-powered drive) relies on the QUINT supply for its control electronics, while the power stage is fed from a separate 3-phase rectifier. This separation of control and power circuits — enabled by the QUINT-PS/1AC/24DC/40's dedicated 24 VDC output — is a fundamental principle of safe motion architecture, ensuring that a power stage fault does not collapse the control bus.

Manufacturing & Assembly Lines: In automotive body-in-white welding lines and discrete assembly systems, the QUINT-PS/1AC/24DC/40 powers the complete PLC and safety relay infrastructure. Its SFB technology allows engineers to use standard miniature circuit breakers (MCBs) for branch circuit protection without oversizing, reducing panel footprint and simplifying maintenance. The 40 A output supports simultaneous operation of multiple safety door monitors, light curtain controllers, and pneumatic valve islands without voltage droop.

Power Generation & Utilities: In substation automation and distributed control systems (DCS) for power plants, the QUINT-PS/1AC/24DC/40 provides the 24 VDC supply for IED (Intelligent Electronic Device) panels, RTU communication modules, and protection relay auxiliary circuits. Its ATEX Zone 2 certification allows deployment in gas-turbine auxiliary panels where explosive atmospheres may be present during maintenance windows.

Oil, Gas & Petrochemical: Offshore platform control rooms and onshore refinery DCS cabinets use the QUINT-PS/1AC/24DC/40 in 1+1 redundant configurations. The DC OK contact integrates with the plant's DCS alarm management system, providing early warning of power supply degradation before a fault occurs. The wide operating temperature range (-25 °C to +70 °C) supports both arctic offshore and desert refinery environments.

Water & Wastewater Treatment: SCADA-controlled pump stations and membrane bioreactor (MBR) plants deploy the QUINT-PS/1AC/24DC/40 to power remote I/O panels and field instrument transmitters. The high efficiency (>93%) reduces heat dissipation in sealed enclosures, extending the service life of co-located components and reducing cooling requirements.

Mining & Metallurgy: Conveyor control systems, crusher automation, and smelter process control panels in mining operations require power supplies that withstand high vibration, dust ingress, and wide temperature swings. The QUINT-PS/1AC/24DC/40's robust DIN-rail mounting and IP20 housing — combined with conformal coating options — make it suitable for these demanding environments when installed in appropriately rated enclosures.

Marine & Shipboard Systems: GL (Germanischer Lloyd) certification enables the QUINT-PS/1AC/24DC/40 to be used in shipboard automation panels for engine room monitoring, ballast control, and cargo management systems, where type approval is mandatory for classification society acceptance.

Q1: Can the QUINT-PS/1AC/24DC/40 be used in a redundant 1+1 power architecture, and what additional components are required? Yes. Two QUINT-PS/1AC/24DC/40 units can be combined with the QUINT-DIODE/40 redundancy module to create a fully decoupled 1+1 parallel redundant supply. The diode module prevents reverse current flow between the two supplies and provides automatic load sharing. Each supply's DC OK contact should be wired to the PLC's digital input for independent health monitoring. No additional derating is required — each unit is rated for the full 40 A load independently.

Q2: How does the SFB (Selective Fuse Breaking) technology affect downstream circuit breaker selection and cabinet design? SFB technology delivers up to 200% of rated current (80 A) for up to 12 seconds during a downstream short circuit. This allows engineers to use standard B- or C-characteristic MCBs (e.g., 2 A, 4 A, 6 A) for branch circuit protection without requiring high-speed electronic circuit breakers. The result is a simpler, more cost-effective panel design with predictable fault isolation. Engineers should verify that the MCB's breaking capacity matches the available short-circuit current at the point of installation.

Q3: What is the warranty coverage and pre-shipment testing process for the 2866789 QUINT-PS/1AC/24DC/40? Every unit supplied by NANKMOS carries a 12-Month Warranty covering manufacturing defects and functional failures under normal operating conditions. Prior to shipment, each unit undergoes pre-shipment functional testing including output voltage verification, load regulation check, and DC OK contact continuity test. Units are shipped with original packaging and documentation. Replacement or repair is arranged within the warranty period at no additional cost. Long-term inventory availability is maintained to support ongoing project requirements and spare parts programs.