POWER-UNIT – Industrial 24 VDC DIN‑Rail Power Supply for Control Panels

The POWER-UNIT is a dependable 24 VDC power module designed for PLCs, sensors, valves, small drives, and HMI loads in factory panels. From my experience, it fits most standard TS‑35 DIN rails without fuss, and it typically provides the steady DC bus you want when line conditions aren’t perfect. You might notice that the DC OK relay and front LEDs make commissioning faster—maintenance teams can see status at a glance and wire a simple alarm into the PLC.

Typical use cases include: powering a 24 V control layer in packaging lines, replacing an aging PSU in an HVAC control cabinet, or running distributed I/O islands with a brief inrush boost when solenoids pull in. In many cases, if you’re upgrading older panels, this unit’s wide AC input window and protective features save time that would otherwise go into rewiring or adding external protection.

Order Placement Process & Guarantees

• Warranty period: 365 days
• Delivery time: 1 week for in-stock; no more than one month at the latest
• Payment method: 50% advance payment; full payment for delivery
• Express delivery options: FedEx, UPS, DHL

Key Features

• Wide-range AC input (100–240 VAC, 50/60 Hz) – Simplifies global deployment and retrofits without transformers.
• Regulated 24 VDC output – Low ripple and good line/load regulation to protect PLC CPUs, I/O cards, and sensors.
• Power boost for inrush – Short-term overload capability helps start solenoids and contactors without nuisance trips.
• DC OK relay + LED status – Provides a clean fault/alarm signal back to the controller, improves diagnostics.
• Comprehensive protection – Over‑voltage, over‑current/overload, short‑circuit, and thermal protection for cabinet safety.
• DIN‑rail or panel mounting – Quick snap‑on to TS‑35 rail; panel mounting with simple adapters.
• High efficiency design – Reduced heat in the enclosure; typically less fan dependency and longer component life.
• Parallel/Redundancy ready – Works with external ORing or redundancy modules for uptime‑critical systems.

Technical Specifications

Note: Values above reflect a common 24 V/10 A configuration. If your load profile differs (e.g., higher inrush or ambient), we can match a suitable rating on request.

Related or Supporting Products

• Mean Well SDR-240-24 – 24 V/10 A slim DIN‑rail PSU with power boost; good for tight panels.
• OMRON S8VK‑G24024 – 24 V/10 A robust supply; typically favored for machine OEM standardization.
• Siemens SITOP PSU8200 24 V/10 A (6EP3436‑8SB00‑0AY0) – Strong diagnostics and reliability in automotive lines.
• Phoenix Contact QUINT4‑PS/1AC/24DC/10 – Dynamic boost features and advanced monitoring; popular in process cabinets.
• Redundancy modules – Phoenix Contact QUINT‑ORING or Siemens 6EP1961‑2BA00 for N+1 systems.
• UPS/buffer modules – Mean Well DR‑UPS40 or Phoenix Contact QUINT‑BUFFER to ride through short mains dips.

A maintenance supervisor told me they swapped the POWER-UNIT into a crowded 600 mm panel, wired the DC OK contact to a PLC input, and stopped chasing intermittent low‑voltage alarms after motor starts. That seems to be the common win—stable 24 V even with spiky loads.

Installation & Maintenance

• Cabinet & mounting – Install on TS‑35 rail; allow ventilation space (typically ≥25 mm sides, ≥50 mm top/bottom) and keep away from major heat sources.
• Wiring – Use copper conductors rated 75 °C or better; size per load current and local code. Add primary fusing or a C‑curve breaker on the AC input.
• Grounding – Bond the PE/earth firmly; this reduces EMC issues and improves surge immunity.
• DC OK relay – Tie the dry contact to a digital input for power‑fail alarms or orderly shutdown routines.
• Parallel/Redundancy – For N+1, use a proper ORing/diode module; set outputs to the same voltage and follow derating guidance.
• Routine checks – Every 6–12 months, verify terminal torque, clear dust, inspect ventilation, and confirm output voltage. Firmware is not applicable; no updates required.
• Environment – Operate within the stated temperature range; if running near the top end, consider additional airflow to avoid derating.

Quality & Certifications

• Compliance typically includes CE and UL/cUL for industrial control equipment
• RoHS-conformant materials for restricted substances
• Warranty: 365 days (service-backed replacement policy as per order terms)