Datasheet

ManualsBrandsPHOENIX CONTACT ManualsRack & DIN Rail Mount PSUsSTEP-PS/1AC/24DC/0.75/FL DIN Rail Power Supply 24Vdc 0.75A 18W

1Description

Primary-switched power supply for building

automation

STEP-PS/1AC/24DC/0.75/FL

Data sheet

INTERFACE

STEP POWER power supply units – for building

automation

The new STEP POWER generation of compact power supply

units is particularly suitable for installation distributors and flat

control panels thanks to its design. The power supply units

are available with 24 V DC output voltage in four performance

classes and widths and with the special voltages 5, 12, 15

and 48 V DC. Their high degree of efficiency and the low

standby losses make for high power efficiency.

DANGER OF EXPLOSION!

Only remove equipment when it is disconnected and not in the potentially explosive area.

DANGER

The device contains dangerous live elements and high levels of stored energy.

Never carry out work when the power is turned on.

Make sure you always use the latest documentation.

It can be downloaded at www.phoenixcontact.net/download

– Easy assembly on the DIN rail or panel

– Maximum energy efficiency thanks to low idling losses

– Quick startup with LED function monitoring

– High operating safety due to long mains buffering under

full load and high MTBF (> 500,000 h)

– Can be used worldwide in all industrial sectors due to a

wide-range input and an international approval package

– Wide temperature range of -25°C to +70°C

– Parallel connection possible for increased performance

and redundancy

– Extra flat type for mounting on DIN rails or horizontal

103898_en_00

Features

Summary of content (13 pages)

PAGE 1
STEP-PS/1AC/24DC/0.75/FL Primary-switched power supply for building automation INTERFACE Data sheet 103898_en_00 1 © PHOENIX CONTACT - 08/2009 Description STEP POWER power supply units – for building automation The new STEP POWER generation of compact power supply units is particularly suitable for installation distributors and flat control panels thanks to its design.
PAGE 2
STEP-PS/1AC/24DC/0.75/FL 2 1 Table of contents Description ..................................................................................................................................1 Features.....................................................................................................................................................................1 2 Table of contents.........................................................................................................................
PAGE 3
STEP-PS/1AC/24DC/0.75/FL 3 Ordering data Description Type Order No. Pcs. / Pkt. DIN rail power supply unit 24 V DC/0.75 A, primary switched-mode, 1phase, 43 mm constructional depth. STEP-PS/1AC/24DC/0.75/FL 2868622 1 4 Technical data Input data Input nominal voltage range 100 V AC ... 240 V AC AC input voltage range 85 V AC ... 264 V AC DC input voltage range 95 V DC ... 250 V DC AC frequency range 45 Hz ... 65 Hz DC frequency range 0 Hz Current consumption Approx. 0.
PAGE 4
STEP-PS/1AC/24DC/0.75/FL General data Insulation voltage input/output 4 kV AC (type test) 2 kV AC (routine test) Insulation voltage input / PE 3.5 kV AC (type test) 2 kV AC (routine test) Insulation voltage output / PE 500 V DC (routine test) Degree of protection IP20 Class of protection II MTBF > 500 000 h in acc. with IEC 61709 (SN 29500) Housing material polycarbonate Foot latch material Plastic POM Dimensions W / H / D (state of delivery) 36 mm / 90 mm / 43 mm Weight 0.
PAGE 5
STEP-PS/1AC/24DC/0.75/FL Conformance with EMC guideline 2004/108/EC and for low-voltage guideline 2006/95/EC Noise immunity according to EN 61000-6-2 Electrostatic discharge Electromagnetic HF field Fast transients (burst) Surge current loads (surge) Conducted interference Voltage dips EN 61000-4-2 Housing Level 3 Contact discharge ± 6 kV (Contact discharge) Discharge in air ± 8 kV (Air discharge) Comments Criterion B EN 61000-4-3 Housing Level 4 Frequency range 80 MHz ...
PAGE 6
STEP-PS/1AC/24DC/0.75/FL 5 Structure 1 2 3 4 4 2 AC input DC output "DC OK" LED Universal snap-on foot for EN DIN rails and for wall mounting Ou tpu tD C DC OK 3 In pu tA C 1 Input Output [mm2] solid stranded 0.2 - 2.5 0.2 - 2.5 0.2 - 2.5 0.2 - 2.5 AWG 24 - 12 24 - 12 [Nm] Torque 0.6 - 0.8 0.6 - 0.8 Input data Input nominal voltage range 100 V AC ... 240 V AC AC input voltage range 85 V AC ... 264 V AC DC input voltage range 95 V DC ... 250 V DC AC frequency range 45 Hz ...
PAGE 7
STEP-PS/1AC/24DC/0.75/FL 6 Block diagram + + – – L (+) N (-) 7 Safety notes DANGER OF EXPLOSION! Only remove equipment when it is disconnected and not in the potentially explosive area. DANGER The device contains dangerous live elements and high levels of stored energy. Never carry out work when the power is turned on.
PAGE 8
STEP-PS/1AC/24DC/0.75/FL 8 Installation ATTENTION In order to ensure sufficient convection, we recommend a minimum vertical distance of 30 mm to the other devices. Ou tpu tD C DC In pu 9 tA The power supply unit can be snapped onto all DIN rails as per EN 60715; it can also be mounted on walls. The device must be mounted vertically (connecting terminals above or below).
PAGE 9
STEP-PS/1AC/24DC/0.75/FL 10 Mounting on DIN rails Assembly To mount on an EN DIN rail, snap the device straight onto the DIN rail. If the power supply unit is to be fastened directly onto an even surface, press the orange base latch upward and down. Place a washer between the pulled-out base latch and the even surface (max. outer diameter 8.5 mm, max. thickness 1.3 mm, e.g., spring washer for M4 in acc. with DIN 127-B or toothed lock washer in acc. with DIN 6797).
PAGE 10
STEP-PS/1AC/24DC/0.75/FL 12 Input CAUTION If an internal fuse is triggered, there is most probably a malfunction in the device. In this case, the device must be inspected in the factory! Ou tpu tD C Protection of the primary side DC In pu tA The device must be installed in acc. with the regulations as in EN 60950. It must be possible to disconnect the device using a suitable isolating facility outside the power supply. The primary side line protection, for example, is suitable.
PAGE 11
STEP-PS/1AC/24DC/0.75/FL 14 Signaling The "DC OK" LED enables evaluation of the function of the power supply directly on site. State 1 State 2 ON OFF Cause Output voltage > 21.5 V Output voltage < 21,5 V or no voltage at the output Meaning Output voltage and output current OK The device is in operation, but there is a fault in the consumer, the current consumption is greater than I1 or the output is short circuited.
PAGE 12
STEP-PS/1AC/24DC/0.75/FL Output current [A] Thermal behavior With an ambient temperature of up to +55°C, the device supplies the continuous output current of IN. In the case of ambient temperatures above +55°C, the output current must be reduced by 2.5% per Kelvin increase in temperature. The device does not switch off at ambient temperatures of +70°C or thermal overload. The output capacity is reduced as far as necessary to provide device protection.
PAGE 13
STEP-PS/1AC/24DC/0.75/FL Increased performance IN IN + − + − + − + − 103898_en_00 For n parallel connected devices, the output current can be increased to n x IN. Parallel connection to increase efficiency is used for the expansion of existing systems. It is advisable to use parallel connection if the power supply unit does not cover the current requirement of the most powerful consumer. Otherwise the consumers should be spread among individual devices independent of one another.