QUINT-UPS/24DC/24DC/40 2320241 Safety-Reliable UPS Critical Control

QUINT-UPS/24DC/24DC/40 2320241 Safety-Reliable UPS for Critical Industrial Control Sites

The Phoenix Contact QUINT-UPS/24DC/24DC/40 (Order No. 2320241) is a high-performance 24 VDC uninterruptible power supply module engineered for continuous operation in safety-critical industrial environments. Designed as a direct replacement and upgrade solution within the QUINT-UPS series, this module delivers uninterrupted 24 VDC output at up to 40 A, ensuring that control cabinets, safety relay circuits, and field instrumentation remain energized even during mains supply interruptions, voltage sags, or transient surge events.

In process industries where a momentary power interruption can trigger emergency shutdowns, damage in-progress batch operations, or compromise personnel safety, the QUINT-UPS/24DC/24DC/40 acts as the last line of defense for the 24 VDC bus. Its active buffer technology bridges power gaps without switching delay, eliminating the risk of PLC watchdog trips, safety PLC (SIL-rated) nuisance resets, and fieldbus communication dropouts that would otherwise propagate through PROFIBUS DP, PROFINET, or EtherNet/IP architectures.

Safety Reliability Table

Control Cabinet Risk Reduction Strategy

A robust 24 VDC power architecture in a critical control cabinet is never a single-component solution. The QUINT-UPS/24DC/24DC/40 2320241 is most effective when integrated as part of a layered protection strategy. Upstream, a Phoenix Contact QUINT-PS/1AC/24DC/40 primary power supply provides the regulated 24 VDC feed; its active power boost function handles inrush currents from contactors and solenoid valves without tripping the upstream MCB. The QUINT-UPS module then sits in series, buffering the bus against any residual voltage dips that pass through the primary supply.

For surge and transient protection at the cabinet entry point, a Phoenix Contact TRABTECH PT 2X2-24DC-ST surge protection device clamps lightning-induced and switching transients before they reach sensitive electronics. Within the same cabinet, Phoenix Contact CLIPLINE complete terminal blocks and PTFIX distribution blocks maintain low-impedance connections across the 24 VDC distribution rail, preventing resistive voltage drops that could cause marginal-voltage faults in connected I/O modules.

On the control side, a Phoenix Contact AXL F BK PN PROFINET bus coupler or ILC 151 ETH inline controller depends on a stable, uninterrupted 24 VDC supply to maintain real-time communication with remote I/O stations. A power interruption lasting even 20 ms can cause a PROFINET watchdog timeout, forcing a controlled or uncontrolled PLC stop — a scenario the QUINT-UPS/24DC/24DC/40 is specifically designed to prevent. Similarly, Phoenix Contact PSR safety relays in the emergency-stop and safety-gate circuits require continuous 24 VDC to hold their output contacts in the energized (safe) state; any supply interruption forces a de-energize-to-trip response that halts the entire production line.

For battery backup extension, the Phoenix Contact QUINT-BAT/24DC/12AH battery module connects directly to the QUINT-UPS/24DC/24DC/40, extending bridging time from seconds to minutes — sufficient for a controlled PLC shutdown sequence, valve closure, and safe state confirmation in chemical dosing or compressor control applications. The integrated battery management system monitors state of charge, temperature, and cycle count, alerting maintenance teams via the relay output before battery end-of-life causes an unplanned failure. Complementing the power layer, Phoenix Contact FL SWITCH 2000 series managed Ethernet switches maintain network topology integrity during power events, ensuring that SCADA historian connections and remote HMI sessions are not lost during the UPS bridging interval.

Critical Industrial Safety Applications

Petrochemical and Refinery Plants: In hydrocarbon processing facilities, the QUINT-UPS/24DC/24DC/40 protects the 24 VDC supply rail feeding ESD (Emergency Shutdown) system I/O cards, flame and gas detector interfaces, and solenoid valve drivers on high-integrity pressure protection loops (HIPPS). A supply interruption in these circuits can cause spurious trips of safety instrumented functions (SIFs), triggering unplanned flare events and production losses measured in tens of thousands of dollars per hour.

Power Generation and Substation Automation: In thermal and hydroelectric power plants, the module sustains 24 VDC control power to protection relay auxiliary circuits, bay controller I/O, and GOOSE message-capable IED interfaces during station battery charger switchover events. This prevents nuisance relay operations that could incorrectly isolate healthy feeders.

Mining and Mineral Processing: Underground and surface mining operations expose control equipment to extreme vibration, dust ingress, and wide temperature swings. The QUINT-UPS/24DC/24DC/40’s IEC 60068-compliant mechanical robustness and -25 °C cold-start capability make it suitable for conveyor drive control panels, crusher automation cabinets, and ventilation fan safety circuits where ambient conditions are far beyond office-grade equipment ratings.

Water and Wastewater Treatment: Municipal water treatment SCADA systems rely on uninterrupted 24 VDC to maintain chlorination dosing pump control, UV disinfection interlock circuits, and telemetry RTU communications. The QUINT-UPS module ensures that a mains supply disturbance does not interrupt chemical dosing sequences mid-cycle, which could result in under- or over-dosing events with regulatory compliance implications.

Metallurgy and Steel Production: Continuous casting lines and rolling mill drives require absolute continuity of the 24 VDC control bus. A momentary loss of supply to the drive enable circuit or the hydraulic pressure control loop can cause strand breakout events or roll gap misalignment, resulting in costly equipment damage and extended downtime. The QUINT-UPS/24DC/24DC/40 eliminates this risk by providing zero-delay buffering across the entire 40 A load range.

Port and Marine Applications: Ship-to-shore crane control systems and vessel automation panels operate in high-humidity, salt-laden environments with frequent generator load switching. The module’s wide input voltage tolerance (18–30 VDC) accommodates the voltage fluctuations inherent in marine generator systems, while its IP20 enclosure within a sealed control cabinet provides adequate protection against condensation and vibration.

Safety and Quality FAQ

Q1: What warranty does NINERMAS provide for the QUINT-UPS/24DC/24DC/40 2320241?
All units supplied by NINERMAS carry a 12-month warranty covering manufacturing defects and functional failures under normal operating conditions. Warranty claims are processed directly through NINERMAS, with replacement or repair turnaround coordinated to minimize your site downtime.

Q2: What pre-shipment testing is performed on each unit?
Every QUINT-UPS/24DC/24DC/40 unit undergoes functional power-on verification prior to dispatch, confirming output voltage regulation, status LED operation, and relay output functionality. Units are shipped in original or equivalent protective packaging to prevent transit damage.

Q3: Is this unit a direct drop-in replacement for the original Phoenix Contact QUINT-UPS/24DC/24DC/40?
Yes. The unit supplied is the original Phoenix Contact QUINT-UPS/24DC/24DC/40 (Order No. 2320241) or a verified compatible equivalent within the QUINT-UPS series. It is dimensionally and electrically compatible with existing DIN rail mounting positions, wiring terminals, and QUINT-BAT battery module connections, requiring no panel modifications for replacement.

Q4: Can NINERMAS support long-term or repeat supply of this part?
Yes. NINERMAS maintains ongoing sourcing relationships for QUINT-UPS series components, including end-of-life and discontinued Phoenix Contact part numbers. For critical spare parts programs or annual maintenance contracts requiring guaranteed stock availability, contact our team to discuss scheduled supply agreements and priority allocation.