2902646

What does this DIN-rail power supply do?

It is a primary-switched power supply designed for mounting on an NS 35 DIN rail, converting single-phase AC input into a regulated 5 V DC output for control and automation equipment.

What input voltage range can it accept?

It supports a wide-range AC input from 85 to 264 V AC (nominal range 100 to 240 V AC) at 45 to 65 Hz, allowing use on many global mains systems.

What output does it provide?

It provides 5 V DC (±1%) at a nominal 10 A output current, delivering up to 50 W output power under normal conditions.

Can the output voltage be adjusted?

Yes. The output voltage is adjustable from 4.5 to 6 V DC via the front adjustment, which can help compensate for voltage drops in cabling.

What happens if the load draws too much current or there is a short circuit?

The unit features active current limiting at approximately 12 A in the event of a short circuit, helping to protect the power supply and connected wiring from excessive current.

Can I wire units in parallel for higher power or redundancy?

Yes. It supports parallel connection for redundancy and increased capacity, provided current sharing and wiring practices are suitable for your application.

Can it be wired in series to increase voltage?

Yes. Series connection is supported to achieve a higher DC voltage, as long as the overall system design remains within the ratings of each unit and connected loads.

What are the mounting requirements on the DIN rail?

It is intended for horizontal mounting on an NS 35 rail (EN 60715). For installation spacing, it can be aligned with 0 mm horizontal spacing and 50 mm vertical spacing.

What ambient temperatures can it operate in?

Operating temperature range is -25 °C to +70 °C. Above +55 °C the output must be derated by 2.5% per kelvin.

Does low input voltage require derating?

Yes. When the AC input is below 90 V AC, output capability must be derated by 2.5% per kelvin, as specified for the low-input condition.

What type of terminal connections and conductor sizes are supported?

Both input and output use screw connections. Supported conductor cross-sections are 0.2 to 2.5 mm² (solid or flexible), AWG 24 to 14, with a 9 mm stripping length and M2.5 screw thread.

What enclosure protection and electrical class does it have?

The unit is rated IP20 and is Class I equipment. It also includes transient surge protection using a varistor and offers high isolation strength (up to 4 kV AC input/output in type testing).

How stable is the output voltage under changing load and input conditions?

Typical regulation is strong: load regulation is <1% (static 10% to 90%) and <2% (dynamic 10% to 90%), and input variation influence is <0.1% for ±10% input changes. Residual ripple is <60 mV peak-to-peak.

What are typical power and efficiency characteristics?

Efficiency is >80% at 230 V AC. Typical maximum power dissipation is 1.5 W at no load, and up to 13.5 W power loss at nominal load.

What should I consider for upstream protection devices?

For upstream circuit protection, suitable miniature circuit breakers are typically 6 A to 16 A with characteristics B, C, D, or K, depending on your installation and inrush conditions (inrush surge current is <30 A).