Description
The Edwards PS10-4B is a robust power supply board primarily utilized in specialized industrial monitoring and fire alarm control systems. It is designed to provide stable DC power conversion from AC mains, ensuring that critical safety and logic circuits remain operational even under fluctuating line conditions. The board features integrated filtering to minimize electromagnetic interference (EMI) and provides multiple output taps for peripheral device support.
- Input Voltage: 120V AC / 240V AC (Selectable)
- Output Voltage: 24V DC Nominal
- Output Current: 4.0 Amps continuous
- Frequency: 50/60 Hz
- Protection: Short circuit and thermal overload protection
- Battery Charging: Integrated float charging circuit for backup lead-acid batteries
- Diagnostic Indicators: Onboard LEDs for AC Power, DC Out, and Battery Status
Product Datasheet
| Feature | Specification |
|---|---|
| Model | Edwards PS10-4B |
| Device Category | Power Supply / Charger Board |
| Dimensions | 180 x 135 x 55 mm |
| Weight | 0.85 kg |
| Country of Origin | USA |
| Mounting | 4-Hole Standoff Mount |
| Enclosure Compatibility | Fits standard Edwards cabinet series |
Application Fields
This power supply assembly is a cornerstone in various safety and infrastructure environments, including:
- Fire Alarm Systems: Powering smoke detectors, notification appliances (horns/strobes), and control modules.
- Security & Access Control: Providing consistent 24V DC for magnetic locks and keypad controllers.
- Industrial Signaling: Running visual and audible status indicators in manufacturing plants.
- Emergency Lighting: Managing the charging and switching logic for backup emergency lighting circuits.
Product Instructions
- Mounting: Secure the PS10-4B to the internal chassis of the control panel using the provided insulated standoffs. Ensure there is adequate clearance for airflow.
- AC Connection: Connect the primary AC line to the input terminals. Ensure the ground wire is securely bonded to the system’s earth ground.
- Battery Backup: If using backup power, connect a compatible 24V battery set to the BAT terminals. Observe strict polarity (Red to +, Black to -).
- DC Distribution: Connect the field device loads to the DC output terminals. Do not exceed the 4.0 Amp maximum rated current draw.
- Testing: Power on the AC supply and verify the “AC ON” LED is illuminated. Test the battery switch-over by temporarily disconnecting the primary AC source.
Q&A – Common Questions
Q1: Can I use this board to charge batteries larger than 10Ah? A1: While the board can charge larger batteries, the recharge time will increase significantly. It is optimized for standard 7Ah to 18Ah battery sets typically found in safety cabinets.
Q2: What does it mean if the “Trouble” LED is lit? A2: This usually indicates a blown fuse, a battery disconnection, or a significant voltage drop. Inspect the onboard glass fuses and check battery terminal voltage.
Q3: Is this board compatible with 3rd party alarm systems? A3: The PS10-4B provides standard 24V DC power, making it electronically compatible with most 24V systems. However, ensure the physical mounting and regulatory certifications align with your specific local codes.
Related Product Recommendations
- Edwards SIGA-PS | Intelligent Photoelectric Smoke Detector
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- Edwards 2-PPS | Fire Alarm Replacement Power Board
- Honeywell HPFF12 | Fire Force Power Supply
- Altronix AL600ULXB | Standard Power Supply Charger PCB
