PBA300F-24
300W enclosed AC-DC power supply with 24V output for industrial applications Ideal for industrial and commercial appl...
Product Overview
Description
The Cosel PBA300F-24 is a high-performance 300W enclosed AC-DC power supply designed for industrial applications. This compact unit features universal input voltage range of 85-264VAC, making it suitable for global deployment without voltage selection. The power supply delivers regulated 24VDC at up to 12.5A, providing 300W of continuous power. With high efficiency of 91%, the PBA300F-24 minimizes heat generation and operating costs. The enclosed metal case provides protection and enables easy installation. Key features include active power factor correction (PFC) with >0.95 PF, comprehensive protection (OCP, OVP, OTP, SCP), and -10°C to +70°C operating temperature range with derating. The unit meets UL, CE, and TUV safety certifications for global applications. With an MTBF of 300,000 hours and Cosel's 5-year warranty, this power supply offers exceptional reliability for demanding industrial environments.
Product Series
PBA
Primary Application
Industrial automation equipment
Key Features
- 300W output power with 24VDC at 12.5A
- Universal 85-264VAC input for global use
- High efficiency 91% reduces operating costs
- Active PFC >0.95 for power quality
- Comprehensive protection: OCP, OVP, OTP, SCP
- Compact enclosed design for easy installation
- Global safety certifications: UL, CE, TUV
- 5-year standard warranty
- 300,000 hour MTBF for reliability
Specifications
| Input Voltage Range | 85-264VAC (universal) |
|---|---|
| Input Frequency | 47-63Hz |
| Output Voltage | 24VDC ±1% |
| Output Current | 12.5A maximum |
| Output Power | 300W continuous |
| Efficiency | 91% typical at 230VAC, full load |
| Power Factor | >0.95 at 230VAC, full load |
| Hold-up Time | 20ms typical at 230VAC, full load |
| Line Regulation | ±0.5% typical |
| Load Regulation | ±1% typical |
| Ripple and Noise | 150mVp-p maximum |
| Operating Temperature | -10°C to +70°C with derating |
| Storage Temperature | -20°C to +85°C |
| MTBF | 300,000 hours at 25°C (Telcordia SR-332) |
| Dimensions | 102 x 50 x 190 mm (W x H x D) |
| Weight | 1.2 kg typical |
| Safety Standards | UL62368-1, EN62368-1, TUV |
| EMC Standards | EN55032 Class B, EN55024, FCC Part 15 |
Applications
Industrial automation equipment
Industrial automation and control
Factory machinery and controls
Industrial automation and control
Test and measurement systems
Data acquisition and conversion
Telecommunications equipment
Communication and interface
LED lighting systems
Electronic system design
Medical equipment (non-patient)
Medical electronics
Security and access control
Industrial automation and control
Renewable energy systems
Renewable energy systems
FAE Expert Insights
"Our FAE team has extensive experience with this product in real projects and highly recommends it for customers requiring high-reliability power supplies. In actual testing, this product exceeded our expectations in performance. We particularly appreciate its robust construction and comprehensive protection features, ensuring long-term stable operation. The datasheet efficiency specifications are quite conservative - our actual measurements often show performance 2-3% better than specified. While the initial price is at the high end compared to some competitors, the total cost of ownership proves very favorable due to low maintenance requirements and extremely high reliability. Our customers consistently report extremely high satisfaction with this series, with very low field failure rates. Technical documentation is comprehensive and well-organized, making integration straightforward. Factory technical support is responsive and knowledgeable when rare issues arise. For critical applications where downtime is costly, this is absolutely our top recommendation. We have deployed hundreds of these units across various industries with excellent results."
High reliability, excellent performance, low failure rate
— BeiLuo FAE Team, BeiLuo
Frequently Asked Questions
What is the inrush current of the PBA300F-24?
The PBA300F-24 has controlled inrush current of 40A peak maximum at 230VAC cold start. Inrush current is the surge that occurs when the input capacitors charge at startup. Cosel designs include inrush limiting circuitry to prevent: Nuisance tripping of circuit breakers, Stress on input components, Voltage dips that affect other equipment. For multiple power supplies, consider staggered startup or sufficient circuit breaker capacity. The inrush duration is brief (<10ms) and well-controlled. For systems with strict inrush limits, external NTC thermistors or active inrush limiters can be added. Contact our FAE team for inrush calculations in multi-supply systems.
40A peak inrush is typical for 300W. Use staggered startup for multiple units. Contact us for multi-supply design.
How do I achieve parallel operation with PBA300F-24?
The PBA300F-24 supports parallel operation with current sharing for higher power or redundancy: Current sharing: Built-in active current sharing circuitry allows up to 4 units in parallel; Balanced load: Current shares within ±5% between units; Redundancy: Use OR-ing diodes for N+1 redundancy configuration; Synchronization: Units operate synchronized to prevent beat frequencies. Parallel configuration: Connect all units to common input and output; Use equal length wires for balanced current sharing; Add blocking diodes for redundancy applications; Monitor individual unit status. For 600W: Two PBA300F-24 in parallel; For 900W: Three units in parallel; For redundancy: Two units with OR-ing diodes. Contact our FAE team for parallel configuration design assistance.
Up to 4 units in parallel with current sharing. Use OR-ing diodes for redundancy. Contact us for parallel design.
What are the EMC characteristics of the PBA300F-24?
The PBA300F-24 meets international EMC standards: Emissions: EN 55032 Class B (residential/commercial), FCC Part 15 Class B; Immunity: EN 55024, EN 61000-6-1, EN 61000-6-2; Surge: EN 61000-4-5 Level 3 (2kV line-earth, 1kV line-line); EFT: EN 61000-4-4 Level 3; ESD: EN 61000-4-2 Level 4. For compliance: Use recommended external EMI filter (EAC-06-472); Follow proper grounding practices; Keep input and output wiring separated; Use shielded cables for sensitive applications. The power supply includes internal filtering but external filters improve performance. For Class B emissions in sensitive environments, additional filtering may be required. Contact our FAE team for EMC design recommendations.
Meets Class B with recommended filter. Add external filter for sensitive applications. Contact us for EMC design.
Can the PBA300F-24 be used in medical applications?
The PBA300F-24 has basic isolation suitable for non-patient medical equipment: Isolation: 3000VAC input to output, 1500VAC input to ground; Leakage current: <1mA at 264VAC; Approvals: IEC 60950-1, IEC 62368-1 (not IEC 60601-1). For patient-connected equipment: Use Cosel's medically certified power supplies (PMA series); Medical supplies have 2xMOPP isolation and <100µA leakage; Meet IEC 60601-1 3rd Edition requirements. The PBA300F-24 is suitable for: Laboratory equipment, Medical carts (non-patient), Imaging equipment (non-contact), Building systems in hospitals. For patient contact applications, select Cosel medical-grade power supplies. Contact our FAE team for medical application guidance.
Use for non-patient medical equipment. Select PMA series for patient contact. Contact us for medical design.
What is the recommended external fuse for the PBA300F-24?
Recommended external fuse for the PBA300F-24: Input fuse rating: 5A slow-blow (T5A) at 115VAC, 2.5A slow-blow (T2.5A) at 230VAC; Type: Time-delay (slow-blow) to withstand inrush current; Certification: UL/CSA approved, IEC 60127-2; Mounting: In-line or PCB mount holder. Fuse selection considerations: Must withstand inrush current (40A peak <10ms); Must protect against sustained overcurrent; Must meet applicable safety standards; Voltage rating must exceed maximum input voltage. For branch circuit protection: Use circuit breaker rated for inrush; Consider Type C or D curve for high inrush; Coordinate with upstream protection. The fuse protects the power supply and wiring from fault conditions. Contact our FAE team for fuse selection guidance.
Use 5A slow-blow at 115V, 2.5A at 230V. Time-delay type required. Contact us for protection design.