Description

Allen-Bradley 1606-XL480EP is a high-performance DIN rail mountable switch mode power supply manufactured by Rockwell Automation, belonging to the Bulletin 1606-XL series. This 480W power module converts standard AC mains input into a regulated 24VDC output at 20A, providing reliable power for PLC systems, distributed I/O stations, sensors, actuators, and industrial control networks.

The Allen-Bradley 1606-XL480EP serves as the 24VDC backbone in medium-to-large control cabinets, featuring active power factor correction (PFC) and the ability to operate in parallel for redundancy or capacity expansion. Its fanless convection cooling design and wide operating temperature range make it suitable for demanding industrial environments where reliability and uptime are paramount.

 

Application Scenarios

In a water treatment plant’s SCADA control room, a single Allen-Bradley 1606-XL480EP powers an entire PLC rack, two remote I/O drops, twenty-four 24VDC solenoid valves, and a network of pressure and flow transmitters. When the utility grid experiences a voltage sag to 85VAC during a summer storm, competing power supplies in adjacent panels drop out and force a system-wide reset. The Allen-Bradley 1606-XL480EP continues delivering stable 24VDC through the sag, holding up the process control network until grid voltage recovers. This scenario plays out daily in industrial facilities where power quality is unpredictable but process continuity is non-negotiable.

A pharmaceutical manufacturer in Puerto Rico required ATEX-rated equipment in their solvent handling area. The Allen-Bradley 1606-XL480EP carries Class 1 Div 2 certification, allowing it to be installed directly in the hazardous location panel rather than in a remote safe-area enclosure. This eliminated 200 feet of 24VDC cable runs, reduced voltage drop at the load end, and cut installation cost by an estimated $18,000 compared to the remote-panel design.

 

Parameters

Parameter	Value/Description
Product Model	Allen-Bradley 1606-XL480EP
Manufacturer	Allen-Bradley / Rockwell Automation
Product Category	DIN Rail Switch Mode Power Supply
Series	Bulletin 1606-XL
Output Voltage	24-28 VDC (front panel potentiometer adjustable)
Rated Output Current	20 A @ 24VDC, 18 A @ 28VDC
Output Power	480 W continuous (600 W short-term <30s)
Input Voltage	100-120V / 200-240V AC Auto Select
Input Tolerance	85-132V / 184-264V AC continuous
Input Frequency	47-63 Hz
Efficiency	Up to 94% at 230VAC input
Power Factor Correction	Active PFC (EN 61000-3-2 compliant)
Hold-up Time	30ms @ 24V/20A, 230VAC input
Output Ripple	≤ 50 mVpp (20 Hz – 20 MHz)
Protection	Overload, overvoltage, short circuit (hiccup mode)
Parallel Operation	Supported up to 4 units (N+1 redundancy)
Cooling	Natural convection, fanless
Operating Temperature	0°C to +70°C (derating above 60°C: 12 W/K)
Installation	35mm DIN rail (TS-35/7.5 or 15)
Dimensions	65 × 124 × 127 mm (W × H × D)
Weight	Approximately 1.0 kg
MTBF	519,000 hours (SN29500, 24V/20A, 40°C)
Certifications	UL, cUL, CE, RoHS, ATEX, Class 1 Div 2