Phoenix Contact 2866789 QUINT-PS/1AC/24DC/40 – 24 V DC, 40 A Power Supply
The Phoenix Contact 2866789 (QUINT-PS/1AC/24DC/40) is a single-phase, primary-switched DIN rail power supply from the Phoenix Contact QUINT POWER range. It delivers 24 V DC at 40 A (960 W), and the output can be adjusted from 18 to 29.5 V DC. It is one of the most powerful single-phase units in the QUINT range, built for control panels with many loads. Its SFB technology (Selective Fuse Breaking) can supply up to six times the nominal current for 12 ms. This trips standard miniature circuit breakers selectively, so only the faulty circuit is switched off and the rest of the system keeps running.
What the Part Number Means
- 2866789 – Phoenix Contact order number
- QUINT-PS – QUINT POWER power supply
- 1AC – Single-phase AC input
- 24DC – 24 V DC output
- 40 – 40 A nominal output current
Key Features
- SFB technology: up to 6× nominal current for 12 ms to trip circuit breakers selectively
- POWER BOOST: a permanent power reserve to start loads with high inrush current
- Preventive function monitoring: DC OK and POWER BOOST signal outputs and a floating DC OK relay contact report critical operating states to the PLC
- Wide input range: AC and DC input, for use on most networks worldwide
- Marine approvals: suitable for shipbuilding and offshore applications
Key Specifications (Phoenix Contact 2866789)
Input
- Input voltage: 85–264 V AC (nominal range 100–240 V AC), 45–65 Hz, single-phase
- DC input: 90–300 V DC
Output
- Nominal output voltage: 24 V DC
- Setting range: 18–29.5 V DC
- Nominal output current: 40 A (-25 °C to +60 °C)
- Output power: 960 W
- SFB technology: up to 6× nominal current for 12 ms
- Efficiency: >92% (at 230 V AC and nominal load)
Signalling
- Active DC OK and POWER BOOST signal outputs
- Floating DC OK relay contact, max. 1 A
General Data
- Connection: screw connection
- Mounting: DIN rail NS 35
- Degree of protection: IP20
- Ambient temperature (operation): -25 °C to +70 °C, derating 2.5%/K above +60 °C
- Storage temperature: -40 °C to +85 °C
- Dimensions (W × H × D): approx. 180 × 130 × 125 mm
- Tested to ISA-S71.04-1985 G3 Harsh Group A (corrosive gas environments)
Approvals
- UL Listed / cUL Listed (UL 508)
- UL Recognized
- cCSAus
- IECEE CB Scheme
- SEMI F47
- EAC
- Marine: DNV, ABS, LR, BV, RINA, NK
Successor Product
For new projects, Phoenix Contact recommends the 2904603 QUINT4-PS/1AC/24DC/40, the next generation of the QUINT range with the same 24 V DC / 40 A rating. Atlantech Drives supplies both the original 2866789 for direct replacement and the QUINT4 version.
Typical Applications
- Central 24 V DC supply for large control panels
- Machine building and production lines with many loads
- Process automation, infrastructure and marine installations
- Direct replacement of 2866789 units in existing panels
Buy the Phoenix Contact 2866789 from Atlantech Drives
Atlantech Drives supplies the Phoenix Contact 2866789 QUINT-PS/1AC/24DC/40 with fast worldwide shipping and a 12-month warranty. We supply current and obsolete items, and our experienced sales team can also quote the QUINT4 successor, other QUINT voltages and currents, and QUINT UPS modules. Request a quote today for price and availability.
