Two-phase, primary switched mode power supply PM 2AC

Product catalog summary

General Data
The PM 2AC is a two-phase, primary switched mode power supply with an input voltage range of 200 - 500 Vac and a nominal output voltage of DC 24 V. It provides a nominal output current of 3.8 A and operates within an ambient temperature range of -25 °C to +70 °C. The device is housed in a plastic casing with a protection index of IP 20.

Advantages
Key features include a stabilised and adjustable output voltage, low stand-by consumption (<1 W), constant current limiting without overload shutdown, DC OK signalling, and options for parallel operation. It also features push-in terminals and is designed for panel installation on mounting rails.

Applications
This power supply is suitable for a wide range of applications, including solar, measurement and control technology, and industrial and building automation. It is capable of establishing NEC Class 2 circuits and allows easy output voltage adjustment via a rotary potentiometer. The DIN rail fastening and push-in connection terminals facilitate quick and secure mounting.

Standards and Approvals
The PM 2AC complies with several standards, including UL 60950, UL 508, UL 1310, EN 61558-2-16, EN 60950-1, EN 60335-1, and EN 61204-3. Approvals are pending for UL/CSA 60950 and UL 508.

Technical Specifications

Input: Rated voltage of 200 - 500 Vac, voltage range of 180 - 575 Vac, and a rated frequency range of 44 Hz - 66 Hz. It includes an internal fuse of 3.15 A and transient surge voltage protection via a varistor.
Output: Rated voltage of 24 Vdc with a range of 23 – 28.5 Vdc, rated current of 3.8 A, and efficiency of 89%. It supports parallel and serial operations and features over-voltage protection up to 40 Vdc.
Signaling: Equipped with a green LED status indicator and an active high signal output.
Environment: Storage temperature ranges from -25 °C to +85 °C, with natural convection cooling and specific spacing requirements for installation.

Order Information
The order number for this model is PM-0224-038-0.

Catalog excerpts

Two-phase, primary switched mode power supply PM 2AC-1

Power supplies Two-phase switched mode power supplies Two-phase, primary switched mode power supply PM 2AC General Data Input voltage range 200 - 500 Vac Nominal output voltage: DC 24 V Nominal output current: 3.8 A Ambient temperature: -25 °C ... +70 °C Protection index IP 20 Plastic housing Advantages Stabilised and adjustable output voltage Low stand-by consumption <1 W Constant current limiting without overload shutdown DC OK signalling Parallel operation option Push-in terminals Panel installation on mounting rails Applications Efficient, primary switched mode power supply in slim plastic housing. A powerful and flexible option that's still light and compact. This power supply is suitable for a highly diverse range of applications in solar, measurement and control technology as well as industrial and building automation. It delivers an output current of 3.8 A and is suitable for establishing NEC Class 2 circuits. The output voltage can be easily set using the rotary potentiometer on the front of the housing. The DIN rail fastening method and push-in connection terminals enable fast and secure mounting. Primary switched mode power supply for NEC Class 2 applications UL/CSA 60950 recognised (pending), UL 508 listed (pending), UL 1310

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Two-phase, primary switched mode power supply PM 2AC-2

2 Power supplies Two-phase switched mode power supplies BLDCKE5 Input rated current (rated load) 0.82 A / 0.52 A (200 Vac / 500 Vac) Starting current limiter < 30 A, NTC Input fuse internal 3.15 A Recommended back-up fuse (circuit breaker) 6 A, 10 A, 16 A, characteristic B, C Mains buffering (rated load) >15 ms (230 Vac) / >60 ms (400 Vac) Transient surge voltage protection Varistor Output rated voltage 24 Vdc Output voltage range 23 - 28.5 Vdc (> 24 Vdc constant capacity) Output rated current Output limited current Class 2 output (UL Limited Power Source, LPS) Parallel...

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