Field mountable power supplies
Technology

Integrated electronic circuit breakers protect your system

The DN42xx field mountable module supplies 500W of configurable voltage power for systems with a supply of three phase mains (380...480 V AC) and is designed to be field mounted without a control enclosure. A hardened enclosure with sealing rating of IP65/IP67 ensures protection against electrical, mechanical, and fire hazards. An integrated overvoltage protection eliminates the need for external fusing.

Multi-Channel Supply with integrated fusing

Four separate channels allows the correct amount of power where you need it. Combined into two channels per connector, high amperage cabling limits voltage loss and configurable fusing means that you get more efficiency out of your distribution system, and valuable protection and diagnostics. Each integrated fuse is configurable for between 1 and 12 amps.

Separately Fused Channels

Each L-coded output connector delivers two separately fused supply channels, US to supply sensing systems and UA to supply actuators. This way the actuator power can be cut off under a stop condition while the sensing systems are still supplied with electrical power.

The separate fuses ensure reliable operation of faultless supply channels, without being affected by a fault in one of the other supply channels.

Explore the different fault scenarios and discover how the intelligent power supply reacts.

Configurable Integrated Electronic Fusing

For each of (4) supply channels, the integrated output fuse is configurable with pre-alarm and usage diagnostics in real time. The integrated fusing protects your system from overload and short circuits, and each is independently configurable between 1...12 Amp per channel. A pre-alarm is triggered (flashing green) when a circuit reaches 80% of its configured capacity indicating a reduction in reserve power. Once tripped, each circuit can be reset with a simple push of the associated button.

LED Bar display for load and diagnostics

A 12 segment LED bar graph show the current draw of the overall system, as well as the draw of individual channels in % of the configured fusing for each independent supply. Additional system diagnostics are offered through channel specific LEDs, indicating normal operation, load pre-alarm, and tripped internal fuse.

Accounting for voltage drop

In order to assure that the correct voltage is received at the point of work, cable resistance can be accounted for in the configuration of the system. In the configuration menu, the operating voltage of the system can be defined between 24...28 V. While an exact calculation of voltage drop is recommended for an installed system, an approximation of the loss due to resistance can be achieved through the example formula below.

Voltage drop calculation
DC single phase: V_{drop (V)}= I_{wire (A)} x (2 x L_(ft) x R_{wire (Ω/kft)} / 1000_(ft/kft)) 3-phase: V_{drop (V)}= √3 x I_{wire (A)} x (L_(ft) x R_{wire (Ω/kft)} / 1000_(ft/kft))	V = voltage I = current (Amps) L = length (ft) R = wire resistance (Ω/kft)

Voltage drop calculation

DC single phase:
V_{drop (V)}= I_{wire (A)} x (2 x L_(ft) x R_{wire (Ω/kft)} / 1000_(ft/kft))

3-phase:
V_{drop (V)}= √3 x I_{wire (A)} x (L_(ft) x R_{wire (Ω/kft)} / 1000_(ft/kft))

V = voltage
I = current (Amps)
L = length (ft)
R = wire resistance (Ω/kft)

Sensor and Actuator Supply in a single cable

High amperage cables allow for lower-loss, independently fused, power distribution of both sensors (US) and actuators (UA), or simply two supplies to be divided with a cabling tee.