About

SITOP PSU8200 24 V / 20 A (6EP3436-8SB00-0AY0)

• Type: Stabilized Power Supply
• Input: 400 … 500 V AC, 3-phase
• Output: 24 V DC / 20 A

Input Specifications

• Type of network: 3-phase AC

• Rated supply voltage: 400 … 500 V AC

• Initial voltage: 320 V AC

• Full-scale voltage: 575 V AC

• Wide range input: Yes

• Buffering time at rated output: minimum 15 ms

• Line frequency: 50/60 Hz (47 … 63 Hz)

• Input current:

  • 400 V AC → 1.2 A

  • 500 V AC → 1.0 A

• Inrush current (25 °C): max 16 A

• I²t value: max 0.8 A²·s

• Fuse protection: None (external feeder protection required)

• Recommended feeder protection: 3-pole miniature circuit breaker 6 … 16 A C-characteristic or 3RV2011-1DA10 (3 A) / 3RV2711-1DD10 (UL 489)

Output Specifications

• Voltage curve: Controlled, isolated DC

• Rated output voltage: 24 V DC

• Adjustable output voltage: Yes (24 … 28 V via potentiometer, max 480 W)

• Voltage tolerance: ±3 %

• Voltage precision:

  • Input fluctuation slow: 0.1 %

  • Ohmic load fluctuation: 0.2 %

• Residual ripple: max 100 mV

• Voltage peak: max 200 mV

• Display for normal operation: Green LED "24 V OK"

• Signal output: Relay contact (NO), 60 V DC / 0.3 A

• Soft start: No overshoot

• Response delay: max 2.5 s

• Output current: 0 … 20 A (derating 2%/K at +60 … +70 °C)

• Supplied active power: 480 W

Overload & Short-Circuit Protection

• Short-circuit proof: Yes

• Short-circuit current RMS: typical 22 A

• Overcurrent/overload: 150 % Iout rated up to 5 s/min

• Short-term overload: 60 A (operation)

• Constant overload current: 22 A (start-up)

• Overvoltage protection: < 32 V

• Display for overload/short circuit: LED yellow = "overload", LED red = "latching shutdown"

Efficiency & Power Loss

• Efficiency: 94 %

• Power loss: 31 W (typical at rated output)

• Voltage control with rapid input fluctuation ±15%: 0.1 %

• Load step control 50/100/50 %: 1 %

• Load step 10/90/10 %: 2 %

• Setting time for load steps: 0.2 … 10 ms

Safety & Isolation

• Galvanic isolation: Input ↔ Output, SELV according to EN 60950-1

• Operating protection class: Class I

• Leakage current: max 3.5 mA, typical 0.9 mA

• Protection class: IP20

Mechanical & Installation

• Dimensions (W × H × D): 70 × 125 × 125 mm

• Installation width × mounting height: 70 × 225 mm

• Required spacing: Top/bottom 50 mm, left/right 0 mm

• Mounting: DIN rail EN 60715 35×7.5/15

• Housing can be lined up: Yes

• Net weight: 1.2 kg 

Technical Details