PULS QS20.244 DIN-rail Power Supply
- Model: QS20.244
PULS QS20.244 FEATURES
- AC 200-240V Input
- Width only 70mm
- Efficiency up to 94.5%
- Very Low No-load Losses
- 150% (720W) Peak Load Capability
- Safe HiccupPLUS Overload Mode
- Easy Fuse Tripping due to High Overload Current
- Full Power Between -25°C and +60°C
- DC-OK Relay Contact
- Quick-connect Spring-clamp Terminals
PULS QS20.244 INTRODUCTION
The most outstanding features of this Dimension QSeries DIN-rail power supply are the high efficiency and the small size, which are achieved by synchronous rectification and further novel design details.
The QS20.244 is a device for 200-240V non-public mains only. This supports regional applications and offers additional cost and space savings. If a wide-range unit with PFC is preferred, choose the QS20.241. With short-term peak power capability of 150% and built-in large-sized output capacitors, these features help start motors, charge capacitors absorb reverse energy, and often allow a unit of a lower wattage class to be used. Diagnostics are easy due to the dry DC-ok contact, a green DC-ok LED, and a red overload LED. High immunity to transients and power surges, as well as low electromagnetic emission, makes usage in nearly every environment possible. Unique quick-connect spring-clamp terminals allow a safe and fast installation, and a large international approval package for a variety of applications makes 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 QS20.244 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 QS20.481 and QS20.361 models in the PULS DIN-Rail Power Supplies for 1-phase Systems Series.
PULS QS20.244 CERTIFICATIONS

| PULS Power Supply : Input Data | |
| Input Voltage Range | AC: 170 to 276 VAC |
| Nominal Input Voltage | - |
| Input Frequency Range | 50 to 60 Hz |
| Input Current | At 230 VAC: 4.45A |
| Power Factor | At 230 VAC: typ. 0.5 |
| Crest Factor | At 230 VAC: typ. 4.2 |
| Inrush Current | At 230 VAC: typ. 40A peak |
| Input Fuse | Yes |
| PULS Power Supply : Output Data | |
| Output Voltage Range | 24 to 28 V |
| Nominal Output Voltage | 24 VDC |
| Output Current | 17 A at 28 V, 20 A at 24 V |
| Output Power | 480 W |
| Power Boost | - |
| Output Capacitance | typ. 8500µF |
| 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. 32 VDC; max. 37 VDC |
| PULS Power Supply : General | |
| MTBF | SN 29500: 577000 h |
| Connection Method | Spring clamps |
| 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 to +70 °C: 12 W/°C |
| Dimensions | 70 mm x 124 mm x 127 mm |
| Weight | 880 g |
| Mounting Type | DIN rail |
| Housing | - |
| Standards and Certifications | GOST P, Marine, Class I Div 2, UL 60950-1, UL 508, IEC 60950-1, EC, IEC 60068-2-27, IEC 60068-2-6 |