Overview

This document provides detailed technical specifications, features, and application guidelines for a series of industrial DIN rail power supplies manufactured by Relpol S.A. The power supplies are designed for mounting on 35 mm DIN rails and are available in plastic or metal covers. They support universal AC or DC input ranges and offer multiple output voltage and current options.

Product Range and Models

• Models include RPS-20, RPS-30, RPS-45, RPS-60, RPS-75, RPS-120, RPSP-240, and RPSP-480 series.
• Output voltages: 12 V and 24 V DC.
• Output currents range from 1 A up to 20 A depending on the model.
• Power ratings vary from 20 W to 480 W.

Electrical Specifications

• Input Voltage: 85–264 V AC (some models support 120–370 V DC).
• Frequency Range: 47–63 Hz.
• Output Voltage Adjustment: Adjustable within specified ranges (e.g., 10.8–13.2 V for 12 V models, 21.6–26.4 V for 24 V models).
• Voltage Tolerance: ±1% including setup, line, and load regulation.
• Ripple and Noise: Typically between 80 mVp-p and 480 mVp-p depending on model and output voltage.
• Efficiency: Ranges from 76% to 89% depending on model and load.
• Inrush Current: Cold start values vary by model and input voltage, e.g., 20 A to 60 A.
• Leakage Current: Typically less than 3.5 mA at 240 V AC.

Protections and Safety

• Overload Protection: Rectangular current limitation with automatic recovery after overload removal, operating typically between 105% and 160% of rated current.
• Overvoltage Protection: Output voltage cutoff requiring power cycling to reset.
• Overtemperature Protection: Output voltage cutoff with automatic restart after temperature normalization.
• Isolation: Class II insulation according to PN-EN 60664-1 with dielectric strength of 3000 V AC input/output and 1500 V AC input/ground.
• Compliance: Safety standards UL60950-1, TÜV EN60950-1, UL508; EMC standards EN55011, EN55022 (CISPR22) Class B, EN61000 series for immunity and harmonic current.

Mechanical and Environmental Data

• Dimensions vary by model, e.g., 93 x 78 x 67 mm for smaller units up to 125.2 x 227 x 100 mm for larger units.
• Weight ranges from approximately 190 g to 2400 g depending on model.
• Operating temperature range: -20 °C to +85 °C, with full load derating above +45 °C or +50 °C depending on model.
• Storage temperature: -40 °C to +85 °C.
• Humidity: 10–95% RH operating, 20–90% RH non-condensing storage.
• Vibration resistance: 2 g, 10–500 Hz tested on all axes.
• MTBF (Mean Time Between Failures): Ranges from approximately 105,000 to 445,000 hours at 25 °C depending on model.

Functional Features

• Single output power supplies with fixed switching frequency (100 kHz for plastic cover models, 55 kHz for metal cover models).
• Cooling by free air convection.
• LED indicator for power ON status.
• Terminal pin assignments detailed for input, output, and adjustment connections.
• DC OK signal function available with specified voltage and current limits for active signaling.
• Full load 100% burn-in test performed for reliability assurance.
• Wiring options include 2, 3, or 4 terminals for input/output connections.
• 3-year warranty provided.

Derating and Performance Curves

The document includes multiple derating curves illustrating output load capacity versus ambient temperature and input voltage. Key points include:

• Load must be derated above certain ambient temperatures (typically above +45 °C to +50 °C) to maintain reliability.
• Output power decreases as input voltage deviates from nominal values.
• Graphs show ripple voltage and output voltage stability across input voltage and load ranges.

Application Notes

• Power supplies are components intended for integration into final equipment, which must be re-verified for EMC compliance.
• Recommended resistor values for DC OK signal LED and relay applications are provided for 12 V and 24 V models.
• Installation guidelines include mounting on standard 35 mm DIN rails and wiring instructions.

Summary

Relpol’s industrial DIN rail power supplies offer a robust, efficient, and versatile solution for industrial automation and control applications. They provide reliable power with comprehensive protection features, compliance with international safety and EMC standards, and flexible installation options. The detailed technical data and derating information support proper selection and application to ensure optimal performance and longevity.