1606-XL720E-3 is a legacy Allen-Bradley Bulletin 1606-XL power supply. It delivers 24 V DC at 30 A, a 720 W class unit. Input is three-phase 340–576 V AC, and two-phase operation is permitted. A DC OK status output and overload protection come standard. Rockwell discontinued this model on April 04, 2018. The listed direct replacement is 1606-XLE960DX-3N. For cabinets still running the original design, tested surplus stock avoids rewiring.
Model, Lifecycle, and Mounting
- Model: 1606-XL720E-3 — Bulletin 1606-XL, three-phase input
- Brand: Allen-Bradley
- Status: Discontinued as of 2018-04-04, per Rockwell lifecycle notice
- Direct replacement: 1606-XLE960DX-3N
- Mounting: DIN rail, open-frame construction
- Protection: overload and short-circuit protected
- Weight: 2.0 kg
Input and Output Envelope
- Input voltage: AC 340–576 V three-phase nominal
- Two-phase operation: permitted, per ODVA Rockwell conformance listing
- Output voltage: 24 V DC nominal, adjustable
- Output current: 30 A at 24 V, 26 A at 28 V
- Continuous rating: valid at ambient 0–60 °C, per Application Note 1606-AP026A
- Rated power: 720 W
- Efficiency: up to 92.5%, per PULS OEM counterpart SL30.300
- Status output: DC OK
Environmental Window
- Operating temperature: -10 to +70 °C, per XL series migration document
- Storage temperature: -25 to +85 °C, per Application Note 1606-AP026A
- Relative humidity: not published for this legacy model
- Protection rating: IP20, DIN-rail open-frame construction
- Dimensions (H×W×D): 124 × 240 × 112 mm
Interface and Approvals
- Built-in ports: none
- Protocols: not applicable, this is a power supply
- Only the DC OK output is available for signaling. There is no bus interface.
- Approvals: UL 60950-1, cUL, CE marked, per Bulletin 1606 series standard
Where This Supply Fits
- Legacy three-phase cabinets built around the original 1606-XL720E-3
- High-current DC loads up to 30 A at 24 V
- Panels that allow two-phase operation where one phase is unavailable
- Machines with wide ambient swings, down to -10 °C
- Sites holding spares for discontinued Bulletin 1606-XL designs
Oiltech Controls Review
- The 30 A rating holds only at 0–60 °C ambient. Confirm cabinet temperature first.
- Output drops to 26 A at 28 V. Size loads against the voltage you actually set.
- Two-phase operation is useful during phase loss. It is a stopgap, not a design target.
- Efficiency comes from the PULS SL30.300 counterpart. Treat it as reference, not guaranteed.
- Storage range is published, which helps with long-term spares storage.
- Humidity data is missing. Ask us before deploying in wet or tropical sites.
- At 240 mm wide, plan rail space early. This is a large unit.
- For new builds, the 1606-XLE960DX-3N is the supported path.
Why Buy From Oiltech Controls?
- 15+ years of industrial automation spare parts experience
- Global shipment support via FedEx, UPS, and DHL
- Tested industrial surplus and refurbished options
- 12-month warranty on supplied units
- Technical verification before shipment
- Support for obsolete control systems
- 24–28 hour dispatch after order confirmation
Shipping and Warranty Terms
- 24–28 hour dispatch after payment confirmation.
- Carriers: FedEx, UPS, and DHL.
- 12-month warranty covers functional defects.
- Warranty excludes wrong input voltage, overload, and reverse wiring.
- Report shipping damage within 7 days of delivery.
FAQ
Can I replace the 1606-XL720E-3 directly with the 1606-XLE960DX-3N?
Electrically, the replacement covers the load. Mechanically, check width, terminals, and clearance. Ask us to compare both datasheets before you order.
Is two-phase operation safe for long-term use?
It is permitted, per the ODVA conformance listing. Treat it as a temporary condition. Restore all three phases for continuous duty.
What happens above 60 °C ambient?
The 30 A rating is only valid at 0–60 °C. Above that, derate the load. Measure at the supply intake, not the panel door.
Why is humidity not listed?
The manufacturer does not publish it for this legacy model. For humid sites, contact our team. We can advise from field experience.
How do I confirm a spare matches my cabinet?
Send the old unit label, cabinet photo, and load list. Email info@oiltechcontrols.com or message +86 158 8020 0923 on WhatsApp.
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