STEP-PS/1AC/24DC/3.8/C2LPS Single-Phase DIN Rail Power Supply
24V Industrial Power Supply for Regulated AC/DC or DC/DC Conversion
- 24 V DC Output Voltage
- 3.8 Amps
- 91.2 Watts
- Single phase AC or DC Input
- Input Voltage Range: 85 ... 264 V AC and 95 ... 250 V DC
The STEP-PS/1AC/24DC/3.8/C2LPS Industrial Power Supply is a rugged AC to DC and DC to DC Converter built to meet the high stability and efficiency expectations of industrial, machine automation and process control environments. With its low-profile design, this STEP power supply is ideal for building automation, installation distributors and flat control panels. This Switching (switch mode) Power Supply ensures a regulated output voltage even in the event of voltage fluctuations in the power supply network. With all required safety certifications to support ITE (Information Technology Equipment), ruggedized packaging, extended operating temperatures, high peak load capabilities and high isolation voltages, this STEP Industrial Power Supply is designed to meet the needs of your industrial application.
Industrial operating temperature of -25°C to +70°C with reliable device start-up at -40°C
Equipment found in traffic management, oil and gas pipelines, weather tracking, industrial and outdoor applications must function in temperatures that cannot be supported by a commercial power supplies. With an operating temperature of -25°C to +70°C, and reliable device start-up at -40°C, the STEP-PS/1AC/24DC/3.8/C2LPS Industrial Power Supply is ideal for use with equipment subjected to harsh environments and severe temperatures.
High efficiency and low no load power consumption
Compared with other products on the market, this STEP Industrial Power Supply provides excellent energy savings. With a very low no load power consumption and high efficiency at nominal load, just a small amount of electrical energy is converted into undesired heat energy making this a very ECO friendly power supply. This is important if the power supply is on call 24 hours a day, but rarely loaded.
Flexible mounting
The STEP-PS/1AC/24DC/3.8/C2LPS power supply offers flexible mounting options. It can either be snapped onto a DIN rail or screwed onto a level surface. When mounting on level surfaces, lugs integrated into the housing eliminate the need for additional mounting material.
U/I characteristic curve for the supply of capacitive loads
The STEP-PS/1AC/24DC/3.8/C2LPS Industrial Power Supply is well suited for driving capacitive loads, and DC/DC converters in the primary circuit, due to its U/I characteristic curve. This makes STEP DIN Rail Power Supply suitable for applications such solar cell testing, solar panel testing, testing of piezoelectric driving devices, capacitor testing, driving and testing of capacitive transducers, powering industrial substation capacitors, and lab-type applications with capacitive-resistive loads. This STEP Power Supply can also be used to power resistive loads, and inductive loads.
22.5 to 25 V DC Adjustable Output Voltage Range
Using the rotary potentiometer on the front face of the STEP power supply, the output voltage can be optimally adjusted to meet specific application environment requirements. For example, you can easily adjust to compensate for a voltage drop caused by a long cable length.
Ideal application environments for a STEP-PS/1AC/24DC/3.8/C2LPS DIN Rail Power Supply
- Shipbuilding
- DeviceNet environments
- flat control panels
- testing of solar cells, solar panels, piezoelectric driving devices and capacitors
- driving and testing of capacitive transducers
- powering industrial substation capacitors
- lab-type applications with capacitive-resistive loads
- automated production process
- building control, security and surveillance, and climate control systems
Other reasons to choose a STEP-PS/1AC/24DC/3.8/C2LPS Industrial Power Supply
- Shipbuilding Approvals
- DeviceNet Certified
- DIN Rail mount narrow housing saves space in the control cabinet
- Voltage Isolation input/output: 4 kV AC
- LED indicator for voltage out failure: If the output voltage is below the operational range, the LED turns off.
- Protections: Short-circuit, Overload, Over voltage, Over-temperature
- High MTBF (Mean Time Between Failure) values of more than 500,000 hours at +40°C ensure maximum availability
- IEC Protection Class II Power Supplies
Industrial Class 2 Power Supply
With the NEC designation as a Class 2 Power Supply, all regulations address the wiring requirements (wire size and insulation, wire derating factors, overcurrent protection limits and methods of wiring installation) between the output of the supply and the input of the load are met by this STEP. The output voltage and power delivery capabilities of this Class 2 power supply will lower the risk of fire initiation and electrical shocks, which allows for lower cost wiring methods to be employed when installing an electrical system in a building.
Environmental Product Compliance
REACH SVHC
Lead 7439-92-1
China RoHS
Environmentally Friendly Use Period = 25;
General
Net weight
0.33 kg
Efficiency
> 88 % (for 230 V AC and nominal values)
Insulation voltage input/output
- 4 kV AC (type test)
- 3.75 kV AC (routine test)
Protection class
II (in closed control cabinet)
Degree of protection
IP20
MTBF (IEC 61709, SN 29500)
> 897000 Hours (40°C)
Mounting position
horizontal DIN rail NS 35, EN 60715
Assembly instructions
alignable: 0 mm horizontally, 30 mm vertically
Standards and Regulations
Electromagnetic compatibility
Conformance with EMC Directive 2014/30/EU
Noise immunity
EN 61000-6-2:2005
Connection in acc. with standard
CUL
Standards/regulations
EN 61000-4-2
Contact discharge
4 kV (Test Level 2)
Standards/regulations
EN 61000-4-3
Frequency range
80 MHz ... 1 GHz
Test field strength
10 V/m
Frequency range
1.4 GHz ... 2 GHz
Test field strength
3 V/m
Standards/regulations
EN 61000-4-4
Comments
Criterion B
Standards/regulations
- EN 61000-6-3
- EN 61000-4-6
Frequency range
10 kHz ... 80 MHz
Voltage
10 V (Test Level 3)
Standards/regulations
EN 61000-4-11
Low Voltage Directive
Conformance with LV directive 2006/95/EC
Standard - Safety of transformers
EN 61558-2-16
Standard - Electrical safety
IEC 60950-1/VDE 0805 (SELV)
Standard – Electronic equipment for use in electrical power installations and their assembly into electrical power installations
EN 50178/VDE 0160 (PELV)
Standard – Safety extra-low voltage
IEC 60950-1 (SELV) and EN 60204-1 (PELV)
Standard - Safe isolation
DIN VDE 0100-410
Standard – Protection against shock currents, basic requirements for protective separation in electrical equipment
EN 50178
Standard – Limitation of mains harmonic currents
EN 61000-3-2
UL approvals
- UL/C-UL listed UL 508
- UL/C-UL Recognized UL 60950-1
- UL ANSI/ISA-12.12.01 Class I, Division 2, Groups A, B, C, D T4A (Hazardous Location)
- NEC Class 2 as per UL 1310
Shock
18 ms, 30g, in each space direction (according to IEC 60068-2-27)
Vibration (operation)
- < 15 Hz, amplitude ±2.5 mm (according to IEC 60068-2-6)
- 15 Hz ... 150 Hz, 2.3g, 90 min.
Information technology equipment - safety (CB scheme)
CB Scheme
Rail applications
EN 50121-4
Connection data, input
Connection method
Screw connection
Conductor cross section solid min.
0.2 mm²
Conductor cross section solid max.
2.5 mm²
Conductor cross section flexible min.
0.2 mm²
Conductor cross section flexible max.
2.5 mm²
Conductor cross section AWG min.
24
Conductor cross section AWG max.
12
Stripping length
6.5 mm
Screw thread
M3
Output data
Nominal output voltage
24 V DC ±1 %
Setting range of the output voltage (USet)
22.5 V DC ... 25 V DC (> 24 V DC, constant capacity restricted)
Nominal output current (IN)
3.8 A (-25°C ... 55°C)
Output current Imax
6.5 A
Derating
55°C ... 70°C (2.5%/K)
Connection in series
No
Feedback resistance
≤ 35 V DC
Protection against surge voltage on the output
< 35 V DC
Control deviation
- < 1 % (change in load, static 10 % ... 90 %)
- < 2 % (change in load, dynamic 10 % ... 90 %)
- < 0.1 % (change in input voltage ±10 %)
Residual ripple
< 80 mVPP (20 MHz)
Output power
91.2 W
Typical response time
< 0.5 s
Peak switching voltages nominal load
< 10 mVPP (20 MHz)
Maximum power dissipation in no-load condition
< 0.7 W
Power loss nominal load max.
11.8 W
Dimensions
Width
90 mm
Height
90 mm
Depth
61 mm
Weight per piece
330.0 GRM
Input data
Nominal input voltage range
100 V AC ... 240 V AC
Input voltage range
- 85 V AC ... 264 V AC
- 95 V DC ... 250 V DC
AC frequency range
45 Hz ... 65 Hz
Current consumption
- 1.3 A (120 V AC)
- 0.8 A (230 V AC)
Nominal power consumption
175.8 VA
Inrush surge current
< 15 A (typical)
Mains buffering
- typ. 25 ms (120 V AC)
- typ. 120 ms (230 V AC)
Input fuse
4 A (slow-blow, internal)
Choice of suitable circuit breakers
6 A ... 16 A (Characteristics B, C, D, K)
Power factor (cos phi)
0.59
Type of protection
Transient surge protection
Protective circuit/component
Varistor
Connection data, onput
Connection method
Screw connection
Conductor cross section solid min.
0.2 mm²
Conductor cross section solid max.
2.5 mm²
Conductor cross section flexible min.
0.2 mm²
Conductor cross section flexible max.
2.5 mm²
Conductor cross section AWG min.
24
Conductor cross section AWG max.
12
Stripping length
6.5 mm
Screw thread
M3
Ambient conditions
Degree of protection
IP20
Ambient temperature (operation)
-25°C ... 70°C (> 55°C derating, 2.5 %/K)
Ambient temperature (storage/transport)
-40°C ... 85°C
Max. permissible relative humidity (operation)
≤ 95 % (at 25°C, non-condensing)
Climatic class
3K3 (in acc. with EN 60721)
Degree of pollution
2
Approvals
- cULus Listed
- DNV GL
- cULus Recognized
- EAC
- UL Recognized
- cUL Recognized
- cUL Listed
- IECEE CB Scheme
- UL Listed
Application Diagrams
Step-PS Industrial Power Supply Block Diagram
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Product Description
Power Cord & Part No.
STEP-PS/1AC/24DC/3.8/C2LPS Power Supply - STEP power supply for DIN rail mounting, input: 1-phase, output: 24 V DC/3.8 A
