1606-XLE960DX-3N — 960W Three-Phase DIN Rail Power Supply, 24V DC / 40A

The 1606-XLE960DX-3N is a 960W power supply accepting 380–480V AC three-phase input, delivering a semi-regulated 24V DC output at 40A. The "semi-regulated" designation reflects a deliberate design tradeoff at this power class: regulation is fully tight across the normal 432–528V input window, with somewhat wider output variation tolerated if the input strays into the extended 360–552V range — a practical compromise that keeps the unit efficient and compact while still covering a genuinely wide voltage tolerance band.

Specifications

Parameter	Value
Part Number	1606-XLE960DX-3N
Output Voltage	24V DC (adjustable)
Output Current	40 A
Output Power	960 W
Input Voltage	380–480V AC, Three-Phase (432–528V fully regulated; 360–552V extended)
Regulation Type	Semi-regulated
Efficiency	~95%
Hold-up Time	Load-dependent; up to ~1 min at no load
Terminal Type	Screw / plug-in
Operating Temperature	−25°C to 70°C (derate above 60°C)

Three-Phase Input for High-Current Panels

At 40A continuous output, drawing that current from a single-phase branch would require oversized wiring and a dedicated high-amperage circuit — three-phase input distributes the draw across three conductors, keeping per-phase current manageable and aligning with the three-phase distribution already present in most facilities running equipment at this power scale. For panels with substantial 24V DC demand across PLCs, multiple I/O racks, and field devices, this consolidates what might otherwise require several smaller single-phase supplies into one unit.

The semi-regulated behavior under extreme input conditions is worth understanding before specifying: at the normal 432–528V range, output stays tightly regulated. Only when input voltage drifts into the wider 360–432V or 528–552V extended bands does output regulation loosen somewhat — a behavior that's appropriate for the vast majority of installations where supply voltage stays within normal utility tolerance, but worth flagging for applications with genuinely unstable three-phase supply quality.

FAQ

Q: What happens to the output if the three-phase input voltage drops below the normal regulated range?

Output voltage decreases according to the unit's hold-up time characteristics during the dip, then returns to normal once input voltage recovers — for applications requiring tighter immunity to voltage dips, an additional buffer module is recommended.

Q: Can this supply tolerate phase loss on one of the three input legs?

Operating with one phase missing is outside the unit's normal specified input condition and should be avoided — verify all three phases are present and within range before energizing.

Q: Is the output voltage adjustable, and over what range?

Yes, the output is adjustable within the specified 24V DC nominal range via the front-panel trim — consult the unit's adjustment range specification for the exact upper and lower limits.

Q: Does this supply require any special input fusing given its three-phase, high-current input?

Yes. Each input phase should be fused or breaker-protected according to the unit's rated input current and the facility's applicable electrical code requirements — verify the specific fuse rating against the unit's input current specification.

1606-XLE960DX-3N Genuine 1606XLE960DX3N Ser A Power Supply Module 24V 40A 960W