The Dycon D2433-P is the PCB-only version of Dycon’s 3A, 24V DC EN54-4 fire alarm power supply. It is for OEM and custom enclosures. Dycon states that PCB-only modules are EN54-4 compliant but are not certified unless fitted in an approved Dycon housing.
Key features
- PCB-only module from the Dycon D2433 3A range
- Microprocessor-controlled operation and protection
- On-demand battery charging and load output current sharing
- Monitors the impedance of each battery, not just its voltage
- On-board temperature sensor adjusts the charge rate; optional remote sensor (D-TEMP-01)
- Two independent, electronically fused, switched 24V DC outputs
- Three opto-relay fault outputs: AC power fail, battery fault and PSU fault
- Automatic output reconnection after a short-circuit fault; no user-serviceable fuses
- Over-voltage output protection
- UK-manufactured electronics and steel housings
Technical specifications
- Input voltage: 230V AC +10% / -15%, 50Hz
- Maximum AC input continuous current: 0.9A
- Recommended fused-spur fuse: 250V T3.15A
- Output voltage with AC power: 26V DC min, 29.5V DC max
- Maximum output current: 3A
- Output ripple: less than 0.07V peak-to-peak at full rated output
- Battery charging voltage: 27.6V DC, on demand (up to 3A)
- Standby output voltage: 21V DC min, 27.6V DC max
- PSU standby current: 32mA
- Fault opto-relays: 3 x NC (or NO by jumper), 100mA at 60V
- Operating temperature: -10°C to +40°C
- Humidity: 95% non-condensing
- PCB size (H x W x D): 168 x 141 x 65mm
- Certification: EN54-4 compliant; certified only when fitted in an approved Dycon housing
