PHOENIX CONTACT QUINT4-PS/24DC/24DC/10/SC DC/DC Converter

Overview

The PHOENIX CONTACT QUINT4-PS/24DC/24DC/10/SC (order code 1046803) is an isolated industrial DC/DC converter from the QUINT4 POWER series. The PHOENIX CONTACT QUINT4-PS/24DC/24DC/10/SC accepts 24 V DC input and provides stabilized 24 V DC / 10 A galvanically isolated output. It is equipped with SFB selective fuse breaking technology, static and dynamic boost functions, and preventive diagnostic signaling. This unit is widely used for long cable voltage drop compensation, isolated power branch creation, and backup power separation in PLC, distributed I/O, sensor and actuator circuits in factory automation, process skids and railway auxiliary systems.

Features

The PHOENIX CONTACT QUINT4-PS/24DC/24DC/10/SC supports input range 18–32 V DC, with adjustable output voltage from 24 V to 28 V DC. The PHOENIX CONTACT QUINT4-PS/24DC/24DC/10/SC delivers 12.5 A static boost continuously, 20 A dynamic boost for 5 seconds for heavy startup loads, and 60 A short pulse SFB current to reliably trip miniature circuit breakers for selective protection. It provides floating signal contacts and analog 4–20 mA diagnostic output for remote monitoring of input status, output voltage, temperature and power reserve. The unit adopts screw terminal connection, standard DIN rail mounting, high efficiency up to 93.3%, and built-in protection against short circuit, overload and overvoltage. Same part number supports direct plug‑and‑play replacement without modification.

Specs

Device Type: Isolated DC/DC Converter Model: PHOENIX CONTACT QUINT4-PS/24DC/24DC/10/SC Order No: 1046803 Brand: Phoenix Contact Series: QUINT4 POWER Input: 18–32 V DC Output: 24 V DC, 10 A (240 W) Output adjustment: 24 V DC – 28 V DC Boost: Static boost 12.5 A; Dynamic boost 20 A (5 s) SFB selective breaking current: 60 A (15 ms) Isolation: Galvanic isolation between input and output Diagnostics: Relay signaling contact, 4–20 mA analog diagnostic signal Connection: Screw terminal (SC = Screw Connection) Mounting: DIN rail NS 35 Dimensions: 50 × 130 × 125 mm Weight: Approx. 0.8 kg Operating Temperature: -25°C ~ +70°C (derating above 60°C) Protection: Short-circuit proof, no-load proof, overvoltage protection MTBF: >800,000 h at 40°C

Principle

The PHOENIX CONTACT QUINT4-PS/24DC/24DC/10/SC uses primary switching DC/DC topology to achieve galvanic isolation and voltage regulation. The internal control loop stabilizes the output voltage regardless of input fluctuation and load variation. The SFB circuit generates a high short‑pulse current during short circuit to trip upstream breakers selectively. The preventive monitoring circuit tracks operating parameters and sends early warning signals before failure occurs, improving the reliability of the 24 V DC control power loop.

Applications

The PHOENIX CONTACT QUINT4-PS/24DC/24DC/10/SC is deployed for isolated power supply, long cable drop compensation and power domain separation in control cabinets, distributed I/O stations, railway auxiliary control and process automation skids. The PHOENIX CONTACT QUINT4-PS/24DC/24DC/10/SC is stocked as spare part for emergency replacement and scheduled maintenance of QUINT4 DC/DC systems. It also supports power loop expansion and isolated power branch upgrade projects.