Overview
The PULS QS20.241 is a Dimension Q-Series single-phase DIN rail switching power supply designed for demanding industrial automation applications. Rated at 24V DC output with 20A continuous current (480W nominal power), this compact unit delivers reliable, regulated DC power to PLC processors, distributed I/O modules, HMIs, servo drives, and other 24V control system components. Its wide AC input voltage range (100–240VAC, 50–60Hz) accommodates global power standards without external voltage selection.
Key Features
- High Efficiency (93.9%): Synchronous rectification and advanced design minimize power losses, reducing operating costs and heat dissipation in control cabinets.
- Compact DIN Rail Format: Only 82mm wide, saving valuable panel space while maintaining robust 480W output.
- 150% Peak Load Capability: Built-in output capacitors support short-term overloads and enable starting of inductive loads (motors, solenoids, contactors) without undersizing.
- Wide Input Voltage: Accepts 100–240VAC single-phase input with active power factor correction (PFC), simplifying installation across different utility supplies.
- Low Inrush Current: Negligible input inrush current and wide-range design reduce strain on upstream protection devices and branch circuits.
- Status Indication: DC-OK relay output, green DC-OK LED, and red overload LED enable quick diagnostics and integration with control logic.
- Quick-Connect Terminals: Spring-clamp terminals allow safe, fast installation without crimping tools, reducing assembly time and connection errors.
- Industrial Approvals: Complies with IEC 62368-1, IEC 60950, UL 508, and CB Scheme certifications for use in Class 1, Division II environments.
Technical Specifications
- Output Voltage: 24V DC (adjustable range 24–28V)
- Output Current: 20A continuous
- Output Power: 480W nominal
- Output Ripple: < 100mVpp
- Input Voltage Range: 100–240VAC, 50–60Hz
- Input Current: 4.56A @ 230VAC (typical)
- Power Factor: 0.95 typical
- Efficiency: 93.9% @ 230VAC, 25°C
- Temperature Range: –25°C to +70°C (full power –25°C to +60°C)
- Hold-Up Time: Typical 32ms @ full load
- Dimensions (W×H×D): 82 × 124 × 127mm
- Weight: 3.0 lbs (1.36 kg)
- Mounting: DIN rail, 35mm per IEC 60715
- Certifications: IEC 62368-1, IEC 60950, UL 508, CB Scheme, CE marking
- Series: Dimension Q-Series
Typical Applications
The QS20.241 is widely deployed in industrial control cabinets for:
- PLC and PAC power supplies for automation systems
- 24V control circuit power in distributed I/O and remote terminal units
- Servo drive and stepper motor control power in motion control systems
- HMI touch panel power and signal conditioning modules
- Solenoid valve and contactor coil supplies in pneumatic and hydraulic controls
- Factory automation, machine tools, material handling, and packaging equipment
- HVAC and building automation control networks
- Industrial communication gateway and network switch power
Compatibility & Replacements
Compatible With
- Allen-Bradley CompactLogix, ControlLogix, and MicroLogix PLC systems
- Siemens S7-1200, S7-1500, and LOGO! controllers
- Mitsubishi FX-series, Q-series, and iQ-F PLCs
- Omron CP and NX-series automation controllers
- Schneider Electric Modicon M241, M251, and TeSys control products
- 24V I/O modules (analog, discrete, safety modules) from major automation vendors
- HMI panels and smart relays requiring 24V DC input
- EtherCAT, EtherNet/IP, and PROFINET gateway devices
- Servo drives and motor controllers with 24V auxiliary power inputs
Replaces / Drop-In Replacement For
- PULS QS20.241 (standard)
- PULS QS20.241-A1 (with conformal coating and ATEX approval)
- PULS QS20.241-C1 (variant)
- Legacy 480W 24V power supplies in the Puls Dimension series
Works With
- Software Platforms: Studio 5000 (Allen-Bradley), TIA Portal (Siemens), GX Works (Mitsubishi), Sysmac Studio (Omron), SoMachine (Schneider)
- Communication Protocols: EtherNet/IP, PROFINET, Modbus TCP/IP, CANopen, CC-Link
- Power Ecosystem: DIN rail mounting standard IEC 60715; compatible with standard control enclosure 35mm rail systems
- Redundancy Modules: PULS offers optional redundancy and monitoring modules (order separately) for high-availability applications
