1606-XLS240K: 28 V DC, 240 W, Single-Phase PSU
The 1606-XLS240K is a Bulletin 1606-XL switched-mode power supply from Allen-Bradley. It delivers 28 V DC at 240 W. Input accepts AC 100…240 V or DC 110…150 V. It mounts on a DIN rail and uses spring clamp terminals. A DC OK relay contact reports output status. There is no communication interface. This is a plain power module. Efficiency is 93.5% typical. Ripple stays at 50 mVpp maximum. The 28 V rail suits loads that need a tight, low-noise supply.
Why Buy From Oiltech Controls?
- 15+ years sourcing industrial automation spares
- Worldwide shipping with tracking
- Tested surplus and refurbished stock
- 12-month warranty on all units
- Bench check before dispatch on every order
- Parts support for legacy and obsolete controls
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Technical Data
- Brand: Allen-Bradley
- Model: 1606-XLS240K
- Series: Bulletin 1606-XL
- Type: Switched-mode power supply, single-phase input
- Input: AC 100…240 V / DC 110…150 V
- Output: DC 28 V nominal, adjustable 28…32 V
- Current: 8.6 A nominal, 8.6…7.5 A range
- Rated power: 240 W
- Efficiency: 93.5% typical
- Losses: 16.7 W typical
- Ripple and noise: 50 mVpp maximum
- Power factor: 0.92 typical
- Derating: 6 W/°C from +60…+70 °C
- Operating temperature: -25…+70 °C
- Storage temperature: -40…+85 °C, non-operating
- Humidity: Not stated in 1606-TD002
- Protection: IP20
- Size (H×W×D): 124×60×117 mm
- Weight: 0.90 kg
- Terminals: Spring clamp
- Status: DC OK relay contact
- Communication: None, no port, no protocol
Oiltech Controls’s Insight
- The 28 V rail sits between common 24 V and 48 V lines. It fits older 28 V machine loads.
- Dual input (AC or DC) helps in mixed-power plants.
- Low 50 mVpp ripple suits sensors and analog cards.
- No network port means no firmware or config risk.
- Spring clamps cut wiring time on panel builds.
- Good pick for legacy 1606-XL panels that need a drop-in 240 W unit.
Oiltech Controls Review
- Build quality matches the Bulletin 1606-XL family.
- Efficiency near 93.5% keeps cabinet heat low.
- Terminal layout is clean and easy to service.
- The DC OK relay helps panel fault checks.
- Stock is tested and shipped fast. Lead time is 24…28 hours before dispatch.
- Best value for legacy panels, not for new bus-linked designs.
Best-Fit Equipment
- 28 V machine control panels
- Legacy Bulletin 1606-XL cabinets
- Sensor and analog I/O rails
- Plants with AC or DC control supply
- Retrofit projects with no bus link
Installation and Setup
- Clip onto DIN rail inside the cabinet.
- Leave space above and below for airflow.
- Wire AC 100…240 V or DC 110…150 V to input.
- Tighten the spring clamp terminals.
- Set output by trim pot. Range is 28…32 V DC.
- Wire the DC OK relay to a PLC or lamp.
- Check load current against 8.6 A nominal.
- Apply derating above +60 °C at 6 W/°C.
Approvals
- UL 60950-1
- cUL
- CE marked per the official Bulletin 1606 series standard
Shipping and Warranty
- Dispatch in 24…28 hours after order
- Couriers: FedEx, UPS, DHL
- 12-month warranty on all units
- Technical check before shipment
FAQ
Q: Can this unit run on DC input?
A: Yes. Input accepts DC 110…150 V as well as AC 100…240 V. This helps in DC control plants.
Q: Will 28 V work for a 24 V load?
A: Check the load spec first. Many 24 V devices accept 28 V, but not all. Stay within the device rating.
Q: How do I pick between 1606-XLS240K and a 24 V model?
A: Match your existing rail. If the panel is wired for 28 V, keep 28 V. Do not mix rails in one cabinet.
Q: Is a 240 W unit enough for my panel?
A: Add up load current. Keep total below 8.6 A at 28 V. Leave headroom for inrush.
Q: What should I check on a used unit?
A: Test output at 28 V under load. Check the DC OK relay. Look for swollen caps and burnt terminals. Our units get this check before shipment.
Lifecycle
- Active on the official Rockwell product page
- Listed in current Bulletin 1606-TD002
- Last verified: 2026-10
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