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Bell 840 12V DC 4 Amp Backup Power Supply
£225.35
£187.79
SKU
840
- This product is available to order. The lead time is normally 7 – 9 working days.
- An accurate despatch date will be confirmed with you once order is received by our sales team (during office hours).
Free Delivery on this product
Bell840 dc 4 amp backup power supply - provides 12v power for door entry systems in the event of mains power failure durable and efficient
Bell 840 Power Supply with Battery Backup is a high-capacity 13.8V nominal unit designed for large-scale door entry and video intercom systems, ensuring continuous security during main power failure.
The Model 840 power supply delivers a regulated 13.8V DC nominal output, providing 3A of continuous current with a 4A peak capacity. Designed for protected indoor environments, it features an integrated management system for a lead-acid standby battery (shipped separately). In the event of a power outage, the unit ensures an instant transition to battery power to maintain system integrity. The robust metal cabinet is vented to prevent gas build-up and must be securely wall-mounted. For safety, the unit includes high-breaking capacity (HBC) ceramic fuses for the mains and glass fuses for the battery circuit to protect against overcurrent and short circuits.
Features
- High-Current Performance: Delivers 3A continuous and up to 4A peak current, making it ideal for powering multiple entrance panels and heavy-duty locking hardware.
- Advanced Battery Management: Includes dedicated leads with spade terminals for easy connection to a standby battery, featuring correct polarity marking and a vented cabinet design.
- Comprehensive Circuit Protection: Equipped with a T2A HBC ceramic mains fuse and an F4A glass battery fuse to ensure compliance with BS EN 60127 safety standards.
- Regulated Output Stability: Maintains a 13.8V nominal supply to protect sensitive intercom electronics from voltage fluctuations and noise.
- Durable Vented Enclosure: The 350mm wide cabinet provides ample space for wiring and heat dissipation, ensuring reliable operation within a 0 ºC to 50 ºC temperature range.
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Dimensions
- 350 x 330 x 80 (hwd mm)
| Brand | Bell |
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