DPF240-24S
240W DIN rail AC-DC power supply with 24V output for industrial control panels and automation systems
Product Overview
Description
The Cosel DPF240-24S is a 240W DIN rail mount AC-DC power supply designed for industrial control panel applications. This compact unit features snap-on mounting to standard TS35 DIN rails, allowing quick installation and easy replacement. The universal 85-264VAC input makes it suitable for global deployment. The power supply delivers regulated 24VDC at up to 10A, providing 240W of continuous power. With high efficiency of 92%, the DPF240-24S minimizes heat generation in enclosed panels. Key features include active PFC with >0.95 PF, comprehensive protection (OCP, OVP, OTP, SCP), power good signal, and -20°C to +70°C operating temperature range. The unit meets UL, CE, and TUV safety certifications. With an MTBF of 380,000 hours and Cosel's 5-year warranty, this power supply offers exceptional reliability for industrial control systems.
Product Series
DPF
Primary Application
Industrial control panels
Key Features
- 240W output power with 24VDC at 10A
- DIN rail mount for easy panel installation
- Universal 85-264VAC input for global use
- High efficiency 92% reduces panel heat
- Active PFC >0.95 for power quality
- Comprehensive protection: OCP, OVP, OTP, SCP
- Power good signal for status monitoring
- Global safety certifications: UL, CE, TUV
- 5-year standard warranty
Specifications
| Input Voltage Range | 85-264VAC (universal) |
|---|---|
| Input Frequency | 47-63Hz |
| Output Voltage | 24VDC ±1% |
| Output Current | 10A maximum |
| Output Power | 240W continuous |
| Efficiency | 92% typical at 230VAC, full load |
| Power Factor | >0.95 at 230VAC, full load |
| Hold-up Time | 18ms typical at 230VAC, full load |
| Line Regulation | ±0.5% typical |
| Load Regulation | ±1% typical |
| Ripple and Noise | 120mVp-p maximum |
| Operating Temperature | -20°C to +70°C with derating |
| Storage Temperature | -25°C to +85°C |
| MTBF | 380,000 hours at 25°C (Telcordia SR-332) |
| Dimensions | 40 x 125 x 120 mm (W x H x D) |
| Weight | 0.6 kg typical |
| Mounting | DIN rail TS35 (IEC 60715) |
| Safety Standards | UL62368-1, EN62368-1, TUV |
| EMC Standards | EN55032 Class B, EN61000-6-2 |
Applications
Industrial control panels
Industrial automation and control
Factory automation systems
Industrial automation and control
Process control equipment
Industrial automation and control
Building automation
Industrial automation and control
Machine control systems
Industrial automation and control
Test and measurement
Data acquisition and conversion
Security systems
Electronic system design
Telecommunications
Communication and interface
FAE Expert Insights
"The DPF240-24S is our most popular DIN rail power supply for medium-power control panels. The 240W rating hits the sweet spot for many automation applications, and the 92% efficiency keeps panel temperatures down. We particularly like the power good signal which simplifies system monitoring. The snap-on DIN rail mounting makes installation and replacement quick and easy. We've deployed thousands of these in various industrial settings with excellent reliability. For control panels requiring 24V at moderate current, this is our standard recommendation."
Perfect balance of power, efficiency, and ease of installation
— BeiLuo FAE Team, BeiLuo
Frequently Asked Questions
How does the DPF240-24S compare to the DPF120-24S?
The DPF240-24S offers twice the power (240W vs 120W) with the same 24V output voltage. Key differences: Output current: 10A vs 5A; Physical size: Slightly larger to accommodate higher power; Efficiency: 92% vs 91%; MTBF: 380K vs 400K hours. Both share the same mounting dimensions and terminal layout, making them interchangeable in panel designs. The DPF240-24S is ideal when you need more power without changing panel layout. Contact our FAE team for selection guidance.
Choose DPF240-24S for higher power needs. Same mounting as DPF120-24S. Contact us for selection.
What is the power good signal specification?
The DPF240-24S power good (PG) signal indicates when output voltage is within specification: Logic: Open collector output, active high; Threshold: 90-95% of nominal output voltage; Response: 10-50ms delay to avoid false triggers; Rating: 30VDC, 10mA maximum; Connection: Use pull-up resistor to system voltage. Applications include system power sequencing, fault detection, status indication, and PLC monitoring. The PG signal provides confidence that the power supply is operating correctly. Contact our FAE team for power good interface design.
Connect to PLC or monitoring circuit. Active when output >90%. Contact us for interface design.
Can I use the DPF240-24S in parallel for redundancy?
Yes, the DPF240-24S supports parallel operation for redundancy: N+1 redundancy uses two units with decoupling diodes; Current sharing provides balanced load distribution; Hot-swap capability allows replacing failed units without shutdown. Configuration involves installing two DPF240-24S on DIN rail, using redundancy module with decoupling diodes, connecting outputs in parallel, and monitoring power good signals. Benefits include no single point of failure and higher system availability. Contact our FAE team for redundancy configuration design.
Use two units with redundancy module for N+1. Contact us for redundancy design.
What wire gauge should I use?
Recommended wire gauges for DPF240-24S: Input wiring: 16 AWG (1.5mm²) minimum at 115VAC, 18 AWG (1.0mm²) at 230VAC. Output wiring: 18 AWG (1.0mm²) minimum for 10A at 24V. Terminal capacity: 14-22 AWG (0.5-2.5mm²) with 0.5-0.6 Nm tightening torque. Best practices include using ferrules on stranded wire, keeping wire lengths short, separating input and output wiring, and calculating voltage drop for longer runs. Contact our FAE team for wiring recommendations.
Use 16 AWG for input, 18 AWG for output minimum. Use ferrules. Contact us for wiring design.
What is the overload capability?
The DPF240-24S overload protection operates as follows: Continuous operation: Up to 100% rated load (240W); Short-term overload: 110-130% for limited duration; Current limiting: Output current limited during overload; Auto-recovery: Returns to normal when overload removed; No damage: Protection prevents supply damage. For applications with pulsed loads: Calculate RMS power over time; Ensure average power within rating; Consider peak power duration. For sustained overloads above 110%, select higher power supply. Contact our FAE team for overload design.
110-130% short-term overload capability. Calculate RMS for pulsed loads. Contact us for overload design.