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Item no. 787-1634

EPSITRON® CLASSIC power supply; 2-phase; output voltage 24 VDC; 20 A

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Description

Features:
  • Switched-mode power supply
  • Natural convection cooling when horizontally mounted
  • Enclosed for use in switchgear cabinets
  • Contact (DC O K)
  • Suitable for both parallel and series operation
  • Electrically isolated output voltage (SELV) per EN 60950-1/UL 60950-1; PELV per EN 60204
  • GL approval

Product details

Details

Technical Data

Input
Phases 1
Nominal input voltage Ui nom AC 100 … 240 V
Input voltage range AC 85 … 264 V; DC 120 … 372 V
Input voltage derating -1.8 %/V (< 105 VAC)
Nominal mains frequency range 44 … 66 Hz; 0 Hz
Input current Ii ≤ 2,23 A (230 VAC); ≤ 5,56 A (100 VAC)
Discharge current ≤ 1 mA
Inrush current ≤ 30 A
Power factor correction (PFC) Active
Mains failure hold-up time ≥ 20 ms (230 VAC); ≥ 8 ms (100 VAC)
Output
Nominal output voltage Uo nom DC 24 V (SELV)
Output voltage range DC 23 … 28,5 V (adjustable)
Factory preset DC 24 V
Nominal output current Io nom 20 A (24 VDC)
Nominal output power 480 W
Adjustment accuracy ≤ 1 %
Residual ripple ≤ 70 mV (peak-to-peak)
Current limitation 1.1 x Io nom (typ.)
Overload behavior Constant current
Signaling and communication
Signaling 1 x LED DC OK (green)
1 x DC OK contact (make contact; max. 30 VAC/DC; 1 A)
Operation status indicator Green LED (Uo)
Efficiency/Power losses:
Power loss Pl ≤ 7,2 W (230 VAC; No load); ≤ 42,4 W (230 VAC; Nominal load)
Max. power loss Pv max. 68,3 W (100 VAC / 24 VDC; 20 A)
Efficiency (typ.) 92 %
Fuse protection:
Internal fuse T 10 A / 250 VAC
External fuse (required) An external DC fuse is required for the DC input voltage.
External fuse (recommended) Circuit breaker: 10 A, 16 A; Tripping characteristic: B or C
Safety and protection:
Insulation voltage (PRI-SEC) DC 4,242 kV
Isolation voltage (PRI-GND) DC 2,2 kV
Insulation voltage (SEC-GND) DC 0,7 kV
Protection class I
Protection class IP20 (per EN 60529)
Feedback voltage ≤ DC 35 V
Overvoltage category II
Transient protection, primary Varistor
Overvoltage protection, secondary Internal protective circuit
≤ 40 VDC (in the event of a fault)
Short circuit protection Yes
No-load proof Yes
Parallel operation Yes
Series connection Yes
MTBF > 500,000 h (per IEC 61709)

Connection data

Connection type (1) Input/Signaling
Connection technology CAGE CLAMP®
WAGO terminal WAGO 721 Series
Solid conductor 0,08 … 2,5 mm² / 28 … 12 AWG
Fine-stranded conductor 0,08 … 2,5 mm² / 28 … 12 AWG
Strip length 8 … 9 mm / 0.31 … 0.35 inch
Connection type (2) Output
Connection technology 2 Push-in CAGE CLAMP®
WAGO terminal 2 WAGO 831 Series
Solid conductor (2) 0,5 … 10 mm² / 20 … 8 AWG
Fine-stranded conductor (2) 0,5 … 10 mm² / 20 … 8 AWG
Strip length (2) 13 … 15 mm / 0.51 … 0.59 inch

Geometrical Data

Width 95 mm / 3.74 inch
Height 127 mm / 5 inch
Length from upper-edge of DIN-35 rail 170 mm / 6.693 inch

Mechanical data

Type of mounting DIN-35 rail (EN 60715)

Material Data

Weight 1600 g

Environmental Requirements

Surrounding air (operating) temperature -25 … 70 °C (Device starts at −40 °C (type-tested))
Surrounding air (storage) temperature -25 … 85 °C
Relative humidity 5 … 96 % (no condensation permissible)
Derating -5 %/K (> 60 °C, 196 … 264 VAC); -2.5 %/K (> 50 °C, 85 … 195 VAC)
Pollution degree 2
Climatic category 3K3 (per EN 60721)

Standards and specifications

Conformity marking CE
Standards/specifications EN 60950-1; EN 61204-3; UL 60950-1; UL 508; GL

Commercial data

Product Group 6 (Interface Electronics)
Packaging type BOX
Country of origin DE
GTIN 4055143060530
Customs Tariff No. 85044082900

Approvals / Certificates

UL-Approvals

Approval
Additional Approval Text
Certificate name
Language
Approval: UL
Underwriters Laboratories Inc.
Additional Approval Text UL 60950-1
Certificate name: E255815
Approval: UL
Underwriters Laboratories Inc.
Additional Approval Text UL 508
Certificate name: E255817

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