Allen-Bradley | 1746-P3 Power Supply

Allen-Bradley 1746-P3 SLC 500 DC Power Supply: Certified for Demanding Environments

Core Technical Specifications

• Brand & Model: Authentic Allen-Bradley power supply, model 1746-P3.
• Module Type: This is a DC Input Chassis Power Supply module.
• Input Voltage Range: Accepts 19.2 to 28.8 Volts DC (24V DC nominal).
• Backplane Power: Delivers 3.6 Amps at 5V DC and 0.87 Amps at 24V DC.
• Input Power: Has a typical line requirement of 90 VA (61 Watts).
• Inrush Current: Handles a maximum inrush of 20 Amps.
• Isolation: Provides 600V AC RMS dielectric withstand for 1 second (chassis ground to input).

Safety, Certification & Installation

• Hazardous Location Certification: UL & C-UL Listed for Class 1, Division 2, Groups A, B, C, D.
• Chassis Position: Mounts in the left-most area of the 1746 chassis and does not consume a slot.
• Fuse Protection: Equipped with an internal fuse; replace with 1746-F3 or equivalent (e.g., BUSSMAN AGC-5).
• Fuse Sizing Note: Fuse ratings may be adjusted downward based on actual circuit wiring gauge.
• Installation Tools: Requires only basic tools: a 1/8" flat head and a 1/4" Phillips screwdriver.
• ESD & Handling: Store in static-shield bag when unused. Avoid touching connector pins or internal components.
• Important Note: There is no isolation between the backplane and the input terminals.

Frequently Asked Questions (FAQ)

• Q: When should I choose the 1746-P3 over an AC-input power supply?
  A: Choose the 1746-P3 when your facility uses a 24VDC control power system, for battery-backed applications, or when AC power is unavailable at the rack location.
• Q: What certifications make this module suitable for harsh environments?
  A: It holds full UL and C-UL listings for Class 1, Division 2 hazardous locations, covering a wide range of flammable gas and dust groups (A, B, C, D).
• Q: Are there any special handling precautions for this module?
  A: Yes. Always practice ESD (Electrostatic Discharge) safety. Keep the module in its protective bag until installation, and avoid contact with circuit board components and connector pins.
• Q: What is your shipping policy for this item?
  A: We ship globally via major couriers (DHL/UPS/FedEx) within 5 business days. All items are guaranteed to be 100% authentic and new.

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