HAYDON HAY-PSU12V3ABB | 12VDC 3A Switch Mode Boxed PSU | 13.8V Battery Backup, Universal Input, Small Hinged
£36.62 (inc VAT: £43.94)
Summary
The HAYDON HAY-PSU12V3ABB is a high-efficiency, cost-effective 12VDC switch mode power supply unit designed specifically for security applications including intruder alarms, access control systems, and general security installations. This compact boxed PSU delivers reliable 3A output current with integrated 13.8V battery backup capability.
Featuring universal mains input voltage compatibility (90-264VAC), this power supply offers exceptional versatility for international installations. The unit incorporates comprehensive protection features including overload protection, mains transient protection, and anti-vandal tamper detection for both lid and rear access points.
Built with installer safety in mind, all high voltage electronics are fully shrouded, while the high-efficiency design reduces running costs and operating temperatures. The integrated LED indicators provide clear status monitoring with green mains present and red fault indication for easy diagnostics.
Features
- High efficiency switch mode design for reduced running costs
- Universal mains input voltage 90-264VAC, 50-60Hz
- Maximum 3A current output to connected loads
- Integrated 7Ah lead acid battery backup charging at 0.5A
- Comprehensive overload and short circuit protection
- Mains transient protection for enhanced reliability
- Lid open and rear anti-vandal tamper detection
- Green mains present and red fault LED indicators
- Installer safe design with fully shrouded high voltage components
- Compact hinged box design (200x240x75mm)
- Individual circuit fusing capability with optional output modules
- Volt-free tamper contact for security system integration
FAQ
What type of battery does this PSU support?
The PSU is designed for 12VDC lead acid batteries with a capacity of 7Ah. The unit provides battery charging at a maximum of 0.5A current and includes a 3A battery charging fuse for protection.
What happens when mains power fails?
When mains power is lost, the PSU automatically switches to battery backup, providing 10.0-12.3VDC output voltage. The green mains LED will turn off, indicating battery operation. The system will continue operating until the battery is depleted or mains power is restored.
How does the tamper detection work?
The PSU features dual tamper detection – one for the lid and one for rear access. The tamper contact is normally open (N/O) and only closes when both the PSU is properly fixed to the wall and the lid is securely closed. Any tampering will open the contact, alerting the connected security system.
What does the red fault LED indicate?
The red fault LED illuminates when there is a fault condition, specifically when either the output fuse fails or the battery fuse fails. This provides immediate visual indication of system problems requiring attention.
Can this PSU be used outdoors?
No, this power supply unit is not suitable for outdoor installation. It is designed for indoor use only within the specified environmental conditions of -10°C to +40°C operating temperature and up to 95% non-condensing humidity.
What safety certifications does this PSU have?
The PSU meets essential requirements of European Directives including Low Voltage 2006/95/EC, EMC 2004/108/EC, WEEE 2002/96/EC, and RoHS 2002/95/EC, ensuring compliance with safety and environmental standards.
Specifications
- Model: HAY-PSU12V3ABB
- Input Voltage: 90-264VAC
- Input Frequency: 50-60Hz
- Maximum Input Current: 3A
- Mains Input Fuse: 3.0A 250V
- Maximum Standby Power: 0.5W (no load, no battery)
- Output Voltage On Mains: 13.4-14.2VDC (13.8VDC nominal)
- Output Voltage On Battery: 10.0-12.3VDC
- Maximum Load Current: 3.0A
- Output Ripple: 150mV pk-pk maximum
- Load Output Fuse: 3A
- Battery Type: 12VDC Lead Acid
- Battery Capacity: 7Ah
- Battery Charging Current: 0.5A maximum
- Battery Charging Fuse: 3.0A
- Box Dimensions: 200x240x75mm (W x H x D)
- Working Temperature: -10°C to +40°C
- Storage Temperature: -20°C to +60°C
- Humidity: 95% RH non-condensing
- Protection: Overload, short circuit, mains transient
- Tamper Detection: Lid and rear N/O volt-free contact
- Indicators: Green mains LED, Red fault LED
- Compliance: Low Voltage 2006/95/EC, EMC 2004/108/EC, WEEE 2002/96/EC, RoHS 2002/95/EC
Downloads
- Datasheet (Adobe PDF)
Additional information
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