Introduction to the Haydon 24 VAC Multi‑Output Boxed Power Supply
Haydon HAY‑PSU4/2‑2/4A24is a purpose‑built metal‑cased power supply designed for CCTV, access control and wider security installations that require multiple 24 VAC outputs. The unit offers selectable dual‑purpose outputs — configurable as either four independent 2 A channels or two 4 A channels — delivering a combined maximum of 8 A. With auto‑reset PTC protection on each output, individual LED status indicators, built‑in surge protection and an internal mains on/off switch, this boxed PSU is positioned as a reliable distribution solution for small to medium security systems.
The product is supplied in a robust metal enclosure suitable for mounting in equipment racks, cabinets or directly to walls. Typical suggested pricing is around 389.99 (suggested retail price), making it an affordable option for installers and facilities managers seeking a compact, protected and flexible 24 VAC distribution unit.
Key features at a glance
- Selectable outputs: configurable as 4 2 A outputs or 2 4 A outputs (24 VAC)
- Maximum total output current: 8 A (approx. 192 VA)
- Auto‑reset PTC protection on each output (no fuse replacement required)
- Surge protection on outputs to guard connected equipment
- Individual LED indicator for each output and internal mains ON/OFF switch
- Metal boxed enclosure for wall, cabinet or rack mounting
Detailed specifications and benefits
The HAY‑PSU4/2‑2/4A24 is built around a simple but flexible electrical concept: provide multiple isolated or grouped 24 VAC channels with inherent protection and status feedback. Key electrical details include a 24 VAC nominal output and an input range compatible with standard UK/European mains (200240 V AC, 50 Hz). The outputs are configurable as either four 2 A channels or two 4 A channels, giving installers freedom to allocate power in the way that best suits their system architecture.
Practically, this configuration means the unit can serve four low‑to‑medium current cameras or devices independently, or be switched to two higher‑current channels for equipment such as motorised mounts, heaters or larger access control devices. The combined maximum of 8 A (around 192 VA at 24 VAC) ensures a predictable upper limit for system design and prevents unexpected overloading when specifying connected devices.
Protection and resilience are central benefits. Each output is protected by an auto‑reset PTC fuse: if a short or overload occurs the PTC trips to limit current and then automatically resets when the fault clears. This avoids the need for onsite fuse replacement and reduces downtime. In addition, surge protection on the outputs provides a buffer against transient spikes that can damage sensitive electronics, particularly in outdoor camera installations exposed to lightning or switching transients.
LED indicators for each channel give instant visual feedback during installation and troubleshooting. An internal mains ON/OFF switch simplifies safe power control during maintenance. The metal enclosure not only offers mechanical protection but also aids heat dissipation and electromagnetic shielding compared with plastic housings.
Where the datasheet is silent in the supplied information (dimensions, weight, exact terminal types and certain approvals), installers should consult the manufacturer datasheet for full mechanical drawings and compliance details such as CE/UKCA markings and inrush current specifications.
Use cases and scenarios where the Haydon PSU excels
- CCTV camera systems:The most typical application. Use the four 2 A channels to power quad‑camera bays with independent protection or switch to two 4 A channels for PTZ or heavy‑duty cameras that draw more current.
- Access control and door entry:Many door controllers, electric strikes and magnetic locks in certain systems require 24 VAC. The selectable channels make it easy to segregate strike power from auxiliary devices or to provide dedicated high‑current outputs where needed.
- Small security systems in commercial properties:Retail shops, small offices and residential communal areas often need a compact, reliable power distribution box that can be mounted in a cabinet or on a wall near the equipment rack.
- Temporary or modular installations:Because outputs are easily configured, integrators setting up temporary sites or modular buildings can adapt power allocation as equipment is added or reconfigured.
- Mixed equipment zones:Where a single cabinet serves cameras, sensors and access control, the Haydon unit’s per‑output protection reduces the risk that a fault on one device will take down the entire 24 VAC rail.
Comparisons with similar products on the market
In the market for CCTV and access control power supplies you will find a range of approaches: single‑rail boxed supplies, individual plug‑top transformers, and multi‑output boxed PSUs with fused outputs. The Haydon HAY‑PSU4/2‑2/4A24 sits in the multi‑output, protected boxed category and stands out for a few practical reasons:
- Configurable channel currents:Many competing units offer fixed channels (for example 4 × 2 A only). The Haydon’s ability to switch between 4×2 A and 2×4 A provides extra flexibility when systems change or when mixed current demands exist.
- PTC auto‑reset protection:Some alternatives use replaceable fuses or circuit breakers. Auto‑reset PTCs reduce maintenance and keep systems running after transient issues clear, though they are not a substitute for correct fault diagnosis.
- Surge protection and LEDs:While LEDs per channel and surge protection are standard on higher‑end units, lower‑cost PSUs may omit either the surge element or per‑channel indicators. Haydon provides both, aiding troubleshooting and protection.
- Metal enclosure:The metal boxed format is common in professional installations. Some low‑cost consumer units use plastic enclosures or open‑frame designs; metal boxes offer better mechanical protection and can be more suitable for commercial installations.
Potential limitations compared with some competitors include the lack of detailed published mechanical and approval data in the summary information (installers should check full datasheets for CE/UKCA and inrush ratings), and the absence of a battery‑backup charger or integrated UPS functions, which some specialised CCTV PSUs include for emergency operation.
Customer feedback and installer perspectives
There are no named customer testimonials included with the supplied product brief. However, from common installer feedback patterns for similar multi‑output boxed PSUs, the following themes typically emerge:
- Installers appreciate the configurable output arrangement, which reduces the need to carry multiple PSU models to site.
- Auto‑reset PTCs are frequently praised for reducing call‑outs caused by blown fuses, especially in systems where momentary faults are common.
- Per‑channel LEDs and an internal mains switch are called out as useful for quick troubleshooting and safe maintenance.
- Some installers request clearer mechanical drawings and terminal specifics up front to ensure the unit fits existing mounting patterns and wiring methods.
If you require actual customer reviews or case studies, request the manufacturer datasheet or ask suppliers for installation references; many distributors can provide anonymised installer feedback or site case studies on request.
Safety, installation and maintenance notes
As with all mains‑powered equipment, installation must be carried out by a qualified electrician or competent installer. Always isolate the mains supply before installation or maintenance. Verify electrical limits, inrush current and safety approvals from the official manufacturer datasheet and ensure the enclosure is mounted in a suitable location with adequate ventilation to avoid overheating.
Conclusion: Why the Haydon HAY‑PSU4/2‑2/4A24 is a strong choice
The Haydon 24 VAC multi‑output boxed power supply is a practical, flexible and cost‑effective solution for professionals and integrators who need dependable 24 VAC distribution with per‑channel protection. Its selectable 4×2 A or 2×4 A configuration, combined with auto‑reset PTCs, surge protection and LED indicators, makes it especially well suited to CCTV and access control environments where mixed device currents and rapid fault isolation are required.
For installers who prioritise reliability, straightforward maintenance and the ability to adapt power allocation in the field, this unit offers clear operational advantages over basic fixed‑output supplies. Ensure you consult the full manufacturer datasheet for mechanical dimensions, terminal types and certifications before specifying for regulated or safety‑critical projects.
In summary: if you need a compact, protected and adaptable 24 VAC power distribution box for security installations, the Haydon HAY‑PSU4/2‑2/4A24 is a compelling, budget‑aware choice that balances practical features with professional build quality.
