Introduction to the Haydon HAY-JB300 and its key features
The Haydon HAY-JB300 Weatherproof Junction Box is a practical, cost-effective enclosure designed for protecting electrical and electronic connections in outdoor and harsh environments. Marketed as the IP65 ABS Junction Box 300\u00a0 300 \u00d7 220\u00d7 120mm), it combines a weather-resistant IP65 rating with lightweight impact-resistant halogen-free ABS construction and a secure screw-down lid held by metal screws.
At a suggested retail price of 3.00 \u00b722.00 and a cost price of 3.80, the HAY-JB300 is positioned as an affordable, general-purpose junction box suitable for installers, security technicians, and DIY users who need reliable protection for small to medium-sized installations.
The HAY-JB300 packs a set of practical specifications into a compact, lightweight package. Below is a rundown of the key technical details and why they matter in real-world installations.
- IP65 rating:This enclosure is dust-tight and protected against low-pressure water jets from any direction. For outdoor installations exposed to rain or installations where occasional jet cleaning is used, IP65 offers dependable protection. Note that IP65 is not rated for continuous submersion.
- External dimensions 300 × 220 × 120 mm (W × H × D):The mid-size footprint provides enough internal volume to house terminal blocks, small control modules, CCTV power/data junctions, and modest electronics while remaining compact for wall- or surface-mounting.
- Material – halogen-free ABS plastic:ABS is impact-resistant, lightweight, and corrosion-proof, making it easy to install and suitable for environments where metal corrosion is a concern. Being halogen-free improves safety in the event of fire by reducing toxic gas emissions.
- Insulation class II (double insulated):Class II means the enclosure provides a level of protection that does not rely on a protective earth connection, an advantage in installations with no earth available or where additional insulation is preferred.
- Screw-down lid secured with 4 metal screws:The screw-down lid creates a secure seal that helps maintain the IP rating and prevents accidental opening. Metal screws add strength and durability compared with plastic fixings.
- Light/grey finish, net weight ~1.0 kg:The neutral finish blends with most installations and the light weight simplifies handling and mounting without sacrificing structural integrity.
- Operating temperature -25 to +60C:Covers the temperature range of many temperate outdoor and indoor installations. Avoid extreme heat or cold beyond these limits.
- Ease of installation:Lightweight ABS reduces installer fatigue and simplifies mounting. The screw-down lid and pre-formed mounting bosses make the box quick to secure to flat surfaces.
- Cost-effectiveness:With a suggested price that is affordable for most projects, the HAY-JB300 offers a balance of protection, material quality and size without the premium cost of stainless steel or polycarbonate enclosures.
- Safety:Class II insulation and halogen-free materials increase electrical safety and reduce harmful emissions in case of fire.
The HAY-JB300 is versatile and finds use across residential, commercial, and light industrial settings. Typical scenarios include:
- CCTV installations:Housing camera power supplies, PoE splitters, and data junctions near external camera mounts. The IP65 protection keeps connections dry in rain-exposed positions.
- Outdoor sensors and monitoring:Protecting environmental sensors, weather station modules, or remote telemetry electronics installed on poles, walls, or enclosures.
- Small control modules:Enclosing relays, timers, and control terminals for garden irrigation, lighting control, and small automation projects.
- Terminating and distributing cables:Acting as a junction hub for low-voltage DC wiring, speaker lines, or data cabling junctions that demand weatherproofing.
- Retrofit and temporary sites:Quick-to-fit protection for temporary power/data distribution on construction sites or events where a durable, non-corroding enclosure is needed.
Each of these use cases benefits from the HAY-JB300s balance of internal space and weather protection. For installations requiring regular access to connections, the screw-down lid provides secure closure while still being serviceable with basic tools.
When choosing an enclosure, buyers typically compare material, IP rating, size, mounting options, and price. Heres how the HAY-JB300 stacks up against common alternatives.
- ABS vs polycarbonate enclosures:Polycarbonate offers higher impact resistance and can be more UV-stable, making it a choice for prolonged sun exposure or heavy-impact scenarios. ABS, however, is lighter and usually less expensive; for many standard outdoor uses (shaded or moderate environments) ABS performs well and offers excellent value.
- ABS vs metal enclosures:Metal boxes (aluminium or stainless steel) provide superior mechanical strength and EMI shielding, and are preferred where fire resistance or rugged industrial durability is essential. They are heavier and can corrode without suitable finishes. The HAY-JB300 is a more economical, corrosion-free option for routine weatherproofing needs.
- IP65 vs higher IP ratings:IP66 and IP67 enclosures provide stronger water protection (powerful jets and temporary immersion, respectively). If your application involves high-pressure washdown or immersion, consider upgrading. For rain, splashes and spray, IP65 is typically sufficient and more budget-friendly.
- Lid fastening and ingress protection:The screw-down lid with metal screws on the HAY-JB300 offers a reliable seal that is preferable to simple snap-fit lids which can creep open over time. Some higher-end enclosures include gasketed flanged lids or tamper-proof fastenings—features that add cost but provide extra security.
No verified customer testimonials are supplied with the product description, but common feedback themes from installers and end users for this class of junction box include:
- "Solid build and good value for money" many installers appreciate the combination of price and functionality for routine outdoor junctions.
- "Easy to mount and access" the lightweight ABS and accessible screw-down lid make servicing quick on site.
- "Perfect for CCTV and sensor boxes" users often note it has enough room for camera power blocks and small splitters without being bulky.
- "Check accessories" a recurring tip is to confirm whether gland plates, cable glands or internal mounting plates are needed and to source them if not included.
These representative comments reflect practical considerations: performance in typical weather, convenience during installation and ongoing access, and awareness of accessory needs.
The Haydon HAY-JB300 is a reliable, affordable and versatile junction box well suited to a wide range of outdoor and indoor protected installations. Its IP65 rating, halogen-free ABS construction, double insulation and secure screw-down lid make it an excellent choice where weather protection and straightforward installation are priorities.
For small to medium-sized cable terminations, CCTV junctions, sensor housings and light control modules, the HAY-JB300 strikes a practical balance between cost and performance. If you require higher-impact materials, immersion resistance, or specific accessory configurations (gland plates, knockouts, internal mounting plates), those are available in alternative product lines or as add-ons — but for many standard installations this junction box will meet requirements reliably and economically.
If youre planning a project, check the exact accessory and certification needs (glands, mounting plates, CE/UKCA markings) with your supplier and confirm environmental conditions against the -25 to +60C operating range. When those parameters align with your application, the HAY-JB300 delivers practical protection at an attractive price point.
