Haydon HAY-FRG10 Red Fire-Rated M20 Cable Glands – Pack of 10 for Fire Alarm Installations
Unless selecting a vari-focal camera (with an adjustable lens) It is important to select the correct camera lens option for where the camera is to be positioned. A smaller lens will give you a wider angle but will be "zoomed out more", while a bigger lens will narrow the angle down and "zoom in more". See below to give you some idea on angles of Megapixel HD Cameras:
| Lens in mm | Approx Viewing Angle (degrees) | Ideal Distance (metres) | Typical usage/notes |
|---|---|---|---|
| 2.8 | 106 | <6 | For seeing as much of the immediate area as possible such as above a doorway/low down/garage soffits (edges can appear slightly warped/distorted) - clearly "zoomed out" |
| 3.6/4 | 83-90 | <12 | A great general purpose option giving great coverage still in the corner of a room or higher up on second floor soffits with less distortion - more of a natural "zoom" |
| 6 | 56 | 6-20 | Narrows down the angle and zooms in to look past the immediate area a little to gain more detail - down a driveway for example from higher up |
| 12 | 24 | 20+ | Zooms in significantly more to look at a gate, entrance or adjascent building |
| 16 | 19 | 24+ | As above but more so |
The amount of hard drive space you require is dictated by how many cameras, as well as their resolution and frame rate settings. Finally you can often make your storage space last a lot longer by enabling motion detected recording rather than continuous, especially if there are long periods of no activity.
|
Resolution (Megapixels) |
Days of storage provided by 1TB per camera (continuous - full 25 frames per second) |
Days of storage provided by 1TB per 4 cameras (continuous - full 25 frames per second) |
Days of storage provided by 1TB per 4 cameras (50% motion- 15 frames per second) |
|---|---|---|---|
| 1 | 44 | 11 | 36 |
| 2 | 22 | 5 | 18 |
| 3 | 17 | 4 | 14 |
| 4 | 11 | 3 | 9 |
| 5 | 9 | 2 | 8 |
| 6 | 8 | 2 | 6 |
| 8 (4K) | 5 | 1 | 4 |
| 12 | 4 | 0.5 | 3 |
As a rule of thumb we recommend a minimum of 2 Terabytes per 4 x 2-4MP HD cameras, as this should give you 2 weeks to a month with a few adjustments on motion detected recording. You may only require the full 25 frames per second on certain cameras if things are fast moving.
(All of our hard drives come fitted and are CCTV specific from one of the major brands)
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Haydon HAY-FRG10 Red Fire-Rated M20 Cable Glands – Pack of 10 for Fire Alarm Installations
The Haydon HAY-FRG10 Fire-Rated Cable Glands are a professional cable management solution developed specifically for fire alarm and life safety installations. Supplied as a pack of 10, these high-quality cable glands provide a secure and reliable method of routing cables into fire alarm control panels, power supplies, junction boxes and other electrical enclosures while maintaining a neat, professional finish.
Manufactured from robust Nylon 66 (Polyamide), each cable gland offers excellent mechanical strength, durability and long-term reliability. The integrated NBR rubber sealing ring creates a tight seal around the cable, helping to minimise the ingress of dust and other contaminants into the enclosure while protecting cable terminations.
Designed with a standard M20 thread and 20mm thread diameter, the HAY-FRG10 is compatible with a wide range of fire alarm equipment and electrical enclosures. The 10mm thread length allows for secure installation in standard panel cut-outs, making these glands suitable for both new installations and retrofit projects.
KEY FEATURES
- Pack of 10 fire-rated cable glands
- Standard M20 threaded cable entry
- 20mm thread diameter
- 10mm thread length
- Manufactured from durable Nylon 66 (Polyamide)
- NBR rubber sealing ring for a secure cable seal
- Fire-rated to UL94V-2 (self-extinguishing)
- High-visibility RAL 3020 red finish
- Operating temperature from -40°C to +100°C
- Suitable for fire alarm and life safety systems
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