On-Line Electronics will be closed for the Holidays from Tuesday, December 24th, 2024 through Wednesday, January 1, 2025. There will be no shipping or receiving during this time. We will be open for business on Thursday January 2, 2025. From our families to yours, HAPPY HOLIDAYS!
Pro primary switch mode power supply units output voltage 24V dc 20A
Features
Switched-mode power supply with PowerBoost and TopBoost
Switch off the output and minimize power consumption via stand-by input
Output monitoring via DC OK contact
Suitable for both parallel and series operation
Natural convection cooling when horizontally mounted
Encapsulated for use in control cabinets
Electrically isolated output voltage (SELV) per EN 60950-1/UL 60950-1; PELV per EN 60204
Approvals
Underwriters Laboratories Inc., UL, E255817, UL 508
Underwriters Laboratories Inc., UL, E255815, UL 60950-1
Specifications
Input
Phases: 2 || 3
Nominal input voltage Ui nom: (2 / 3) x AC 400 … 500 V
Input voltage range: (2 / 3) x AC 340 … 550 V; DC 480 … 780 V
Nominal mains frequency range: 50 … 60 Hz; 0 Hz
Input current Ii: ≤ 3 x 1.1 A (340 VAC; 20 ADC)
Discharge current: ≤ 1 mA
Inrush current: ≤ 30 A
Power factor correction (PFC): Passive
Mains failure hold-up time: ≥ 13 ms (3 x 400 VAC)
Output
Nominal output voltage Uo nom: DC 24 V (SELV)
Output voltage range: DC 22.8 … 28.8 V (adjustable)
Default setting: DC 24 V
Nominal output current Io nom: 20 A (24 VDC)
Nominal output power: 480 W
Control deviation: ≤ 1 %
Residual ripple: ≤ 70 mV (Peak-to-peak)
Current limitation: 1.1 x Io nom (typ.)
Overload behavior: TopBoost/PowerBoost/Constant current mode
PowerBoost: DC 40 A (4 s); DC 30 A (16 s)
TopBoost: DC 80 A (50 ms)
Signaling And Communication
Signaling: 1 x LED DC OK (green) || 1 x Error LED (red) || 1 x Stand-by input || 1 x DC OK relay contact (changeover contact)
Operation status indicator: Green LED (DC OK) || Red LED (error)
Efficiency/Power Losses
Power loss Pl: ≤ 8.3 W (No load); ≤ 34.1 W (Nominal load)
Efficiency (typ.): 92.9 %
Circuit Protection
Internal fuse: 3 x T 2.5 A / 440 VAC
Required backup fusing: An external DC fuse is required for the DC input voltage.
Recommended backup fusing: 3 x circuit breaker: 6 A, 10 A, 16 A; Tripping characteristic: B or C || Alternative: motor circuit breaker; Setpoint: 2.5 A; Setting range: 2.5 … 4 A