1606-XLS960E-3 New Factory Sealed 1606XLS960E3 Power Supply Module
PRODUCT DETAILS
1606-XLS960E-3 — 960W Three-Phase DIN Rail Power Supply with SFB, 24V DC / 40A
The 1606-XLS960E-3 is a high-power 24V DC DIN rail power supply accepting three-phase AC input, delivering up to 40A continuous at 960W. It carries the same Selective Fuse Bridging (SFB) behavior as the smaller single-phase XLS units, scaled up for panels with substantial 24V DC field power demand — multi-axis servo control cabinets, large I/O racks with dozens of output points, or process panels where one centralized supply replaces several smaller units.
Specifications
| Parameter | Value |
|---|---|
| Part Number | 1606-XLS960E-3 |
| Output Voltage | 24V DC (adjustable 24–28V DC) |
| Output Current | 40 A continuous |
| Output Power | 960 W |
| Input Voltage | 3-phase AC (380–500V AC range, model dependent) |
| Selective Fuse Bridging | Yes — boost current to clear downstream fuses on fault |
| Efficiency | ≥ 90% at full load |
| NEC Class 2 | Yes |
| Mounting | 35 mm DIN rail |
| Operating Temperature | −25°C to 60°C (derate above 50°C) |
Sizing and Branch Protection at 40A
- Segment the 24V output into multiple fused branches rather than running all 40A through a single unprotected distribution point — this isolates faults to the affected branch instead of risking the full rated current flowing through one wiring run.
- Size each branch fuse to clear reliably within the SFB boost window while staying above the branch's normal operating current to avoid nuisance trips.
- Verify the three-phase input wiring and protection device (breaker or fuse set) match the supply's nameplate input current and the facility's available fault current rating.
- At 40A output, conductor sizing on the DC side matters — undersized output wiring introduces voltage drop and heating that compounds at this current level more than it would on a smaller supply.
FAQ
Q: Can this supply run from a single-phase source if three-phase isn't available?
No. This model is designed for three-phase AC input. For single-phase applications at lower power, the smaller single-phase XLS models (120W, 240W) are the appropriate choice instead.
Q: Is parallel redundancy supported the same way as smaller XLS units?
Parallel operation for redundancy or capacity expansion follows the same general approach — trimming one unit's output slightly higher than the other — but verify compatibility and current-sharing behavior against the specific redundancy module rated for this power class before implementing.
Q: How many branch fuses should a 40A output typically be split into?
This depends entirely on the panel's load distribution — group loads logically by function or location, then size each branch fuse for that group's expected current while keeping the total within the supply's rated output. There's no fixed number; it follows the application's wiring architecture.
Q: Does the three-phase input require a specific phase rotation?
Most three-phase rectifier-based power supplies tolerate either phase rotation without requiring a specific sequence, since they don't rely on rotation direction the way a motor would. Confirm against the specific unit's installation documentation if rotation sensitivity is a concern for the installation.