KFA6-STR-1.24.500 Pepperl+Fuchs 24V 500mA DIN Power Supply

KFA6-STR-1.24.500 | Pepperl+Fuchs Power Supply

Product Overview
This regulated power supply delivers stable 24 V DC at 500 mA. It is built for industrial control cabinets and offers reliable performance in harsh environments. With electronic short circuit protection and Power Rail compatibility, it simplifies system integration.

• Brand: Pepperl+Fuchs
• Model: KFA6-STR-1.24.500
• Series: KFA6 Power Supply Series
• Type: DIN-rail power supply with screw terminals
• Output: 24 V DC / 500 mA (continuous, short-circuit proof)
• Input: 90 … 253 V AC (50/60 Hz) – universal AC input
• Efficiency & Loss: Power dissipation only 2.5 W
• Protection: Electronic short circuit protection, IP20 rated
• Mounting: 35 mm DIN rail (EN 60715) or Power Rail
• Terminals: Removable screw terminals, easy wiring
• Dimensions (W x H x D): 20 x 119 x 115 mm (0.8 x 4.7 x 4.5 in)
• Weight: Approx. 140 g (0.31 lbs)
• Ambient Temperature: -20 … 60 °C (-4 … 140 °F) – wide operating range
• Galvanic Isolation: Safe isolation according to DIN VDE 0106
• LED Indicator: Visual status display on front panel
• Labeling: Front labeling space for easy identification
• Standards: EN 60950-1, EN 50178, EN 55022, EN 61000 series

Technical Data – Detailed

• Input Voltage Range: 90 … 253 V AC, 48 … 63 Hz
• Output Voltage: 24 V DC ± 5% (regulated)
• Rated Current: 500 mA at 60 °C (derating not required)
• Short Circuit Protection: Electronic, permanent, auto-recovery
• Power Rail Compatibility: Direct connection to Power Rail or terminal 7+ / 8-
• Back-up Fuse Sizing: B characteristic: 16 A / 10 A / 6 A recommended
• Dielectric Strength: 253 Veff rated insulation voltage
• EMC Compliance: EN 55022, EN 61000-4-2/-3/-4/-5/-6/-11, EN 61000-6-2/-3
• Safety Standards: EN 60950-1, EN 50178 (galvanic isolation)
• Protection Degree: IP20 (finger-safe, indoor use)

Installation & Handling

• Mounting: Snap onto 35 mm DIN rail (EN 60715) – no tools required
• Wiring: Screw terminals accept solid or stranded wires up to 2.5 mm²
• Orientation: Any mounting position; ventilation not required
• Maintenance: No routine maintenance – LED indicates operation
• Space Saving: Slim housing (B2 type) fits tight cabinets

Compatibility & System Use

• Power Rail Integration: Use as rail supply or stand-alone power source
• Load Types: Suitable for sensors, relays, small PLCs, and logic circuits
• System Voltage: 24 V DC standard for automation and control
• Safety Isolation: SELV / PELV compliant, safe for human access

Certifications & Compliance

• Low Voltage Directive: 2014/35/EU
• EMC Directive: 2014/30/EU
• RoHS: Compliant with latest EU requirements
• CE Mark: Full conformity with applicable standards
• Insulation Coordination: EN 50178

Package Contents

• 1 x KFA6-STR-1.24.500 power supply unit
• 1 x set of screw terminal connectors (removable)
• 1 x product label sheet (pre-printed)
• 1 x quick-start guide (multilingual)

Warranty & Shipping

• Warranty: 12 months against manufacturing defects
• Delivery: Ships within 12–24 hours (business days)
• Carriers: FedEx, UPS, DHL – tracked express
• Packaging: Industrial anti-static bag + reinforced carton

Expert Review – Power Supply Performance

Engineers appreciate the KFA6-STR-1.24.500 for its rock-solid 24 V output even with fluctuating AC input. The electronic short circuit protection reacts instantly without fuse replacement. It is a workhorse for small automation panels, offering reliable isolation and low heat generation. The Power Rail connection reduces wiring clutter, making panel assembly faster.

Manager’s Insight – Cost & Efficiency

From a procurement perspective, this unit delivers excellent value. It reduces spare parts inventory because it covers 90–253 V AC worldwide. The slim footprint and IP20 rating suit most factory environments. With 12-month warranty and express shipping, it is a low-risk, high-availability choice for maintenance and new projects.

Applications & Suitable Devices

• Control Panels: Supply for PLCs, timers, and contactors
• Sensor Power: Inductive, capacitive, and photoelectric sensors
• Relay Circuits: Energize small relays or solenoid valves
• Logic Systems: 24 V DC for Arduino, Raspberry Pi (industrial shields)
• Test Benches: Laboratory power for functional tests

Frequently Asked Questions (FAQ)

• Can I use this supply with 230 V AC only?
  Yes, it accepts 90–253 V AC, 50/60 Hz – universal input.
• Does it include a fuse?
  No, but we recommend a B-characteristic 6 A or 10 A external fuse.
• Is the output isolated?
  Yes, galvanic isolation meets DIN VDE 0106, safe insulation.
• What is the maximum current at 50 °C?
  500 mA continuously, no derating up to 60 °C.
• Can I mount it without Power Rail?
  Yes, use terminals 7+ and 8- for direct wiring.

Selection Guide

Choose the KFA6-STR-1.24.500 if you need a compact 24 V/0.5 A supply for mixed sensor and logic loads. For higher current (1 A or 2 A), consider KFA6 series variants. This model excels in small panels, retrofits, and distributed I/O power. Ensure your total load does not exceed 500 mA at 60 °C.

Practical Tips – From Experience

• What if the LED does not light?
  Check AC input and external fuse. Verify terminal 14/15 wiring.
• Can I parallel two units for more current?
  Not recommended due to output regulation differences. Use a higher-rated model.
• How to connect to Power Rail?
  Slide the unit onto the rail; the internal contacts connect automatically.
• Does it handle motor inrush?
  For small motors (< 20 W), yes; for larger loads, add a separate contactor.

For inquiries, contact sales@powergearx.com or
+86 18030005825 (WhatsApp).

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