Features

• Switched-mode power supply
• Natural convection cooling when horizontally mounted
• Stepped profile, ideal for distribution boards/boxes
• Suitable for both parallel and series operation
• Electrically isolated output voltage (SELV) per EN 60950-1/UL 60950-1
• Control deviation: ±1 % (±10 % within the application range of EN 50121-3-2)
• Suitable for railway applications

Specifications

Input

• Nominal input voltage Ui nom: DC 72 V
• Input voltage range: DC 40 … 90 V
• Nominal mains frequency range: 0 Hz
• Input current Ii: ≤ 0.79 A (72 VDC)
• Discharge current: ≤ 1 mA
• Inrush current: ≤ 30 A (NTC)
• Mains failure hold-up time: ≥ 8 ms (72 VDC)

Output

• Nominal output voltage Uo nom: DC 24 V (SELV)
• Default setting: DC 24 V
• Nominal output current Io nom: 2 A (24 VDC); 1.6 A (in any mounting position)
• Nominal output power: 48 W
• Control deviation: ≤ 1 %
• Residual ripple: ≤ 100 mV (Peak-to-peak)
• Current limitation: 1.1 x Io nom (typ.)
• Overload behavior: Constant current

Signaling And Communication

• Signaling: 1 x Status indication LED (green)
• Operation status indicator: Green LED (Uo)

Efficiency/Power Losses

• Power loss Pl: ≤ 2 W (72 VDC; No load); ≤ 9 W (72 VDC; Nominal load)
• Power loss (max.) Pl (max.): 10.5 W (40 VDC / 24 VDC; 2 A)
• Efficiency (typ.): 84 %

Circuit Protection

• Internal fuse: T 4 A / 125 VDC
• Recommended backup fusing: Circuit breaker: 6 A, 10 A; Tripping characteristic: B or C

Safety And Protection

• Isolation voltage (Pri.-Sec.): DC 4.242 kV
• Protection class: II
• Protection type: IP20 (per EN 60529)
• Resistance to reverse feed: ≤ DC 35 V
• Overvoltage category: II
• Pollution degree: 2
• Transient suppression (primary): Varistor
• Overvoltage protection; secondary: Internal protective circuit || ≤ 40 VDC (in the event of a fault)
• Short-circuit-protected: Yes
• Open-circuit-proof: Yes
• Parallel operation: No
• Series operation: Yes
• MTBF: > 500,000 h (per IEC 61709)

Connection Data

• Connection type (1): Input/output
• Connection technology: CAGE CLAMP®
• WAGO Connector: WAGO 740 Series
• Solid conductor: 0.08 … 2.5 mm² / 28 … 12 AWG
• Fine-stranded conductor: 0.08 … 2.5 mm² / 28 … 12 AWG
• Strip length: 6 … 7 mm / 0.24 … 0.28 inch

Physical Data

• Width: 72 mm / 2.835 inch
• Height: 89 mm / 3.504 inch
• Depth: 59 mm / 2.323 inch
• Depth from upper edge of DIN-rail: 55 mm / 2.165 inch

Mechanical Data

• Mounting type: DIN-35 rail

Material Data

• Flammability class per UL94: V0
• Fire load: 0.000 MJ
• Weight: 250.000 g

Environmental Requirements

• Surrounding air temperature (operation): -40 … 70 °C
• Surrounding air temperature (storage): -40 … 85 °C
• Relative humidity: 5 … 96 % (coated PCB)
• Derating: -1.5 %/K (> 55 °C)
• Resistance to shock and vibration: Category 1, Class B (per EN 61373:2010)

Standards And Specifications

• Conformity marking: CE
• Standards/Specifications: EN 61010-1 || EN 61010-2-201 || EN 61204-3 || EN 50121-3-2 || DNV GL
• Standards/Specifications (pending): EN 50125 || UL 60950 || UL 508

Commercial Data

• Packaging type: Box
• Country of origin Sales Organisation Germany: DE
• GTIN: 4055143256544
• Customs tariff number Sales Organisation Germany: 85044082900