PULS CPS20.481 DIN-rail Power Supply
- Model: CPS20.481
PULS CPS20.481 FEATURES
- 100 - 240V Wide-range input, active PFC
- Efficiency up to 94%
- Negligibly low input inrush current
- 20% Power reserves can be used continuously up to +45°C
- Full output power between -25 and +60°C
- DC-OK Signal, a parallel mode for load sharing
PULS CPS20.481 INTRODUCTION
The Dimension C-Series are cost-optimized power supplies without compromising quality, reliability, and performance. The C-Series is part of the DIMENSION power supply family. The most outstanding features of CPS20.481 are the high efficiency, electronic inrush current limitation, active PFC, and wide operational temperature range.
The C-Series includes all the essential basic functions. The devices have a power reserve of 20% included, which may even be used continuously at temperatures up to +45°C. Additionally, the CPS20.481 can deliver about 4 times the nominal output current for 15 ms, which helps to trip fuses on faulty output branches. High immunity to transients and power surges, as well as low electromagnetic emission, a DC-OK relay contact, and a large international approval package for a variety of applications make this unit suitable for nearly every situation.
As an Authorized Distributor of PULS, Manufacturers Automation Inc. (ManuAuto) offers a wide variety of Industrial Automation and Communication products across North America, including Canada (Ontario, Toronto) and the US. Buy PULS CPS20.481 DIN-rail Power Supply online at a competitive price, with on-time delivery and fast shipping services. Our certified engineers are always available to support you.
You can also find the CPS20.241 and CPS20.361 models in the PULS DIN-Rail Power Supplies for 1-phase Systems Series.
PULS CPS20.481 CERTIFICATIONS

| PULS Power Supply : Input Data | |
| Input Voltage Range | AC: 85 to 264 VAC |
| Nominal Input Voltage | AC: nom. 100 to 240 VAC |
| Input Frequency Range | 50 to 60 Hz |
| Input Current | AC: At 120 to 230 VAC: 4.36 to 2.33A |
| Power Factor | At 120 to 230 VAC: 0.95 to 0.99 |
| Crest Factor | At 100 to 230 VAC: 1.5 to 1.65 |
| Inrush Current | At 120 to 230 VAC: 9 to 7 Apeak |
| Input Fuse | Yes |
| PULS Power Supply : Output Data | |
| Output Voltage Range | 48 to 56V |
| Nominal Output Voltage | nom. 48V |
| Output Current | At +60°C ambient: 10.0 to 8.6A, At +70°C ambient: 7.5 to 6.5A |
| Output Power | 480 W |
| Power Boost | Up to +45°C ambient: 12.0 to 10.3A |
| Output Capacitance | typ. 2450µF |
| PULS Power Supply : Protection Features | |
| Overload Protection | Yes |
| Reverse Input Polarity Protection | No |
| Over-Temperature Protection | Yes |
| Input Transient Protection | Yes: MOV |
| Output Transient Protection | No |
| Short Circuit Protection | Yes |
| Output Overvoltage Protection | Yes: typ. 58.5 VDC, max. 60 VDC |
| PULS Power Supply : General | |
| MTBF | SN 29500: 537000 h |
| Connection Method | Screw terminals |
| AC/DC OK | AC: Yes |
| LED Indicators | 1 green LED |
| Remote ON / OFF Function | - |
| IO-Link Interface | - |
| PULS Power Supply : Physical Characteristics | |
| Operating Temperature | -25 to 70°C |
| Storage Temperature | -40 to 85°C |
| Relative Humidity Range | 5 to 95% r.h |
| Altitude Range | 0 to 2000m |
| Derating | Between +60°C and +70°C: 12W/°C, Between +45°C and +60°C: 6.4W/°C |
| Dimensions | 65 mm x 124 mm x 127 mm |
| Weight | 1000 g |
| Mounting Type | DIN rail |
| Housing | Body: Aluminium alloy, Cover: Zinc-plated steel |
| Standards and Certifications | CCC, WEEE, REACH, EU, Labs, ISA-71.04 G3, IEC 60068-2-60, IEC 61558-2-16, Marine (ABS), Marine (DNV), Class I Div 2, IECEx, ATEX, UL 60950-1, IEC 60950-1, IEC 61010-2-201, UL 508, IEC 60068-2-6, IEC 60068-2-27 |