Dycon 1 Amp Magnetic Fire Door Holder Power Supply
£30.99 (inc VAT: £37.19)
Summary
The Dycon D2401-AA is a 24VDC switched-mode 1A power supply specially designed to power magnetic fire alarm door retainers and general 24 Volt DC applications. Supplied in a very compact, attractive, yet tough steel housing with an externally visible status LED, this power supply unit is optimised for the highly inductive loads that magnetic door retainers present.
The D2401-AA eliminates the need for additional control relays and reduces the chance of electrical spikes causing problems, which is a frequent cause of personnel delays and expensive engineer call-outs. The unit features a normally closed (NC) volt-free opto-relay output for remotely signalling its status and serviceability. This output can be used to indicate problems either locally or remotely to a fire alarm panel or to a suitable signalling device.
Protected by Dycon’s intelligent electronic fuse technology with automatic reset to reduce system downtime, the D2401-AA features unique protective technology including intelligent and capacitive load switching, surge protection and snubbing. When used for powering fire system magnetic door retainers, a single D2401-AA can drive 16 units or 8 double doors, based on 50mA each. Designed and manufactured in the UK, this power supply represents high quality, cost-effective engineering to meet current regulations.
Key Features
- 24VDC 1A nominal output
- Attractive, tough steel housing
- Externally visible status LED
- Opto-relay output for remote signalling of faults
- Anti-surge protection
- Electronically fused with automatic reset
- Powers 16 magnetic door retainers or 8 double doors (based on 50mA each)
- Ample provision for cabling
- Fitted with 12mm, 16mm and 20mm knockouts, plus 25 x 12mm trunking knockout
- Hinged/pivoted lid secured by single screw for faster fitting and servicing
- Rounded corners to avoid dust traps and dirt build-ups
- Tough, powder coated, 1.5mm steel construction painted white (RAL9003)
- Can be fitted horizontally or vertically
- Green LED to indicate mains/operational status
- Intelligent and capacitive load switching
- Designed for highly inductive loads
- Designed and manufactured in the UK
FAQ
How many magnetic door retainers can the D2401-AA power?
The D2401-AA can power up to 16 magnetic door retainers (equivalent to 8 double doors) when each retainer requires 24VDC at 50mA.
What is the purpose of the opto-relay output?
The normally closed (NC) volt-free opto-relay output provides remote signalling of the unit’s status and serviceability. This can be connected to a fire alarm panel or suitable signalling device to indicate faults either locally or remotely.
What protection features does the D2401-AA include?
The D2401-AA is protected by intelligent electronic fuse technology with automatic reset, surge protection, snubbing technology, and intelligent and capacitive load switching. These features reduce system downtime and protect against electrical spikes.
Can the unit be mounted in different orientations?
Yes, the D2401-AA can be fitted either horizontally or vertically to suit your installation requirements.
What does the LED indicator show?
The externally visible green LED indicates when mains power is present and the unit is operating correctly.
Is a PCB-only version available?
Yes, the D2401-P PCB-only version is available for inclusion in third-party housings or devices.
What input voltage does the D2401-AA accept?
The D2401-AA accepts 195VAC to 265VAC at 50-60Hz, making it suitable for standard UK mains supply with tolerance for voltage variations.
Specifications
- Power Supply Classification: Type A, Ungraded, Environmental Class 2
- Voltage Input: 195VAC – 265VAC @ 50-60Hz
- AC Input Fuse: T3.15 Ampere non-replaceable
- Output Voltage With AC Power: 24VDC nominal
- Output Ripple: < 100mV peak-to-peak @full rated output
- Max. Output Current At Full Load: 1 Ampere
- AC Fault Will Indicate: If the input voltage falls below 175VAC ± 25V
- Visible Indication: 1 x green LED visible from outside the box, power ok
- Fault Opto-Relay Rating: 60V @100mA, contact resistance of 16 ohms
- Automatic Output Reset Time: 10mS to 18s (depends on type and duration of fault)
- Construction: 1.5mm mild steel, tough, powder-coated, spray paint, heat-treated to provide a durable, wipe-clean surface
- Standard Paint Colour: White (RAL9003)
- Operating Temperature: -10°C to +50°C
- Humidity: 95% non-condensing
- Housing Size (H X W X D): 178 x 110 x 68mm
- Weight: 1.09 Kgs
Downloads
- Datasheet (Adobe PDF)
Additional information
| Weight | 1.09 kg |
|---|---|
| Output | 1A |
| Battery Charging | No |