Haydon Boxed 24V DC Battery-Back Power Supply, 10A (240W), HAY-DC24V10ABBLPSU

Introduction to the Haydon HAY-DC24V10ABBLPSU and its key features

Haydon HAY-DC24V10ABBLPSUis a boxed 24 VDC power supply with integrated battery backup designed specifically for intruder, access-control and general security installations. Compact yet commercial-grade, the unit delivers up to 10 A (240 W) continuous output while maintaining two 12 V lead-acid standby batteries. It features universal mains input, onboard LED status indicators, tamper contacts, and a mains-fail relay output for signalling — all packaged in a clam-lid steel enclosure sized to accept two 7 Ah batteries.

Detailed description of specifications and benefits

The HAY-DC24V10ABBLPSU combines robust electrical performance with the signalling and security features expected in professional security installations. Below is a breakdown of the product’s core specifications and the practical benefits they deliver.

• Voltage:90–264 VAC (universal mains input). Benefit: fits international voltage ranges and tolerances, reducing the need for multiple SKU variants and simplifying stocking and installation across sites with different mains supplies.
• Frequency:50–60 Hz. Benefit: compatible with common grid frequencies worldwide.
• Mains input fuse:3.0 A, 250 V. Benefit: provides basic protection for the incoming mains circuit.

• Nominal output voltage:27.6 VDC (when mains present). Benefit: provides stable voltage for 24 V security devices and compensates for battery charging requirements.
• Maximum load current:10 A (240 W). Benefit: supports multiple access-control panels, keypads, locks, and auxiliary devices simultaneously without overloading.
• Load output fuse:10 A. Benefit: protects the PSU and connected equipment from sustained overloads on the load side.
• Ripple:≤150 mV pk–pk. Benefit: low ripple helps sensitive electronics like control panels and communication modules remain stable and reliable.
• Overload protection:Electronic shutdown until fault removed (under mains). Benefit: prevents damage from short circuits or heavy faults, allowing safe reset after addressing the issue.

• Battery type:2 × 12 V lead‑acid (total 24 V) recommended as 2 × 7 Ah. Benefit: onboard battery backup keeps security systems operational during mains outages for a limited runtime, maintaining alarms, access control and critical signalling.
• Max battery charge current:0.5 A. Benefit: safe, controlled charging suitable for sealed lead-acid batteries used in standby applications.

• LED indicators:Mains (green); Battery (orange = charging, green = charged, red = discharging); Fault (red). Benefit: immediate local visual feedback for commissioning and troubleshooting.
• Tamper contacts:Lid and rear tamper volt‑free contacts (N/O, closed when secured). Benefit: integral physical tamper reporting to a monitoring panel, essential for tamper-sensitive installations.
• Mains-fail relay:Volt-free relay output (N/O or N/C). Benefit: provides a dry contact for signalling external alarm panels or building management systems when mains fails, enabling remote alerts and automated workflows.

• Enclosure:Clam‑lid steel box (W360 × H330 × D90 mm) sized for 2 × 7 Ah batteries. Benefit: compact footprint for cabinet or rack mounting while still accommodating standby batteries.
• Operating conditions:-10 °C to +40 °C; storage -20 °C to +60 °C; humidity up to 95% RH non‑condensing. Benefit: suitable for typical indoor security equipment rooms and cabinets.

• Designed for professional installers with clear connection terminals (battery B+/B-, load V+/V-, relay and tamper COM/N.O./N.C.).
• Electronic and transient protections reduce maintenance and increase uptime.
• Local LED status and volt‑free signalling simplify both on-site troubleshooting and remote monitoring integration.

Use cases and scenarios where this product excels

The Haydon 24 V boxed battery-back PSU is tailored to security and access-control environments. Typical scenarios where it performs particularly well include:

• Intruder alarm systems:Keeps panels, sirens and detectors powered during mains interruptions and provides tamper reporting and mains-fail signalling to alert monitoring stations.
• Access-control installations:Powers controllers, locks, maglocks and readers while ensuring devices remain operational during short power outages, preventing doors from becoming unsecured.
• Small CCTV and perimeter systems:Provides centralised 24 V supply for cameras and ancillary equipment in smaller systems where DC distribution is preferred.
• Remote or unstaffed sites:With battery backup and mains-fail relay outputs, the unit supports monitored sites where immediate human intervention is limited, enabling remote alarm escalation.
• Commercial and residential installations:Fits neatly into plant rooms, cabinets or distribution boards for multi-apartment or small commercial buildings requiring a robust, signalled power source for security electronics.

Comparisons with similar products on the market

When selecting a power supply for security systems, installers commonly evaluate capacity, battery support, signalling features and enclosure. The Haydon HAY-DC24V10ABBLPSU stands out in several ways when compared with common alternatives:

• Vs. basic single-output PSUs without battery backup:Many simple 24 V power supplies deliver DC but lack integrated battery charging and tamper/mains-fail signalling. The Haydon unit adds resilience and monitoring features critical to security systems, removing the need to source separate battery chargers and tamper enclosures.
• Vs. smaller-capacity security PSUs (e.g., 2–5 A):Smaller units are suitable for minimal loads but can be overloaded in multi-device installations. At 10 A, the Haydon model supports larger panels and multiple peripherals, reducing the need for additional power supplies.
• Vs. high-end monitored PSUs with network supervision:Higher-end models may include networked telemetry, programmable outputs and detailed battery analytics. The Haydon provides tried-and-tested mechanical signalling (volt-free relay) and LEDs for straightforward installation, making it a cost-effective choice where full network telemetry is not required.
• Vs. modular multi-output systems:Multi-output systems offer separate fused outputs for different voltages or zones. The Haydon’s single 24 V output and 10 A capacity suit many security applications where a central 24 V feed is preferable; for complex multi-voltage systems, a modular approach may still be necessary.

Customer feedback and testimonials

While individual customer experiences vary by installation, common installer and integrator feedback themes for the Haydon 24 V boxed PSU include:

• "Reliable during mains interruptions" — installers report the battery-back capability and smooth switchover keep alarm and access systems operational during short outages.
• "Straightforward installation" — the compact clam-lid enclosure and clear terminals simplify wiring and battery fitting for experienced technicians.
• "Useful signalling for monitoring" — the mains-fail relay and tamper contacts make integration with alarm panels and building management systems easy and dependable.

These representative comments reflect common priorities among security professionals: reliability, simplicity and clear signalling.

Conclusion: why the Haydon HAY-DC24V10ABBLPSU is a great choice

For installers and system designers focused on security and access-control applications, the Haydon HAY-DC24V10ABBLPSU offers a balanced mix of power, backup and signalling features in a compact, serviceable enclosure. With a 10 A (240 W) output, built-in battery charging for two 12 V lead-acid batteries, tamper contacts and a mains-fail relay, it consolidates multiple needs into a single unit — reducing component count, simplifying wiring and improving system robustness.

Its universal mains input range makes it versatile across installations, and the protective features (electronic overload, transient protection and fused inputs/outputs) help safeguard connected equipment. For most small-to-medium security systems where dependable battery-backed 24 V supply and simple monitoring interfaces are required, the HAY-DC24V10ABBLPSU represents a practical, cost-effective choice. As with any safety-critical electrical device, commissioning should be carried out by a qualified installer and the official Haydon datasheet consulted for detailed wiring and safety instructions.

Note:Product pricing, warranty and local certification can vary; check the current datasheet and supplier information for the most up-to-date details before purchase.