REDUNDANCY MODULE Cost Effective Solution to Build Redundant Systems Dual Input with Single Output Two Diodes (Common Cathode) DC12-48V (120V) ±25% Wide-range Input Full Power Between -40°C and +60°C Width only 32mm Rugged Metal Housing Quick-connect Spring-clamp Terminals Easy Wiring: Distribution Terminal for Negative Pole Included 3 Year Warranty GENERAL DESCRIPTION SHORT-FORM DATA The YR2.DIODE is a redundancy module, which can be used to build 1+1 and N+1 redundant systems. It is equipped with two input channels, which can be connected to power supplies with up to 10A output current and one output, which can carry nominal currents up to 20A. The module is suitable for power supplies with constant current overload behavior as well as any kind of “Hiccup” overload behavior. Input voltage The YR2.DIODE is the perfect solution to use in a redundant system, if the power supply itself is equipped with a DC-OK signal (e.g.: DIMENSION Q-Series). In addition to the YR2.DIODE is the YRM2.DIODE which has a monitoring circuitry included. LEDs and relay contacts signal when one of the two DC-input voltages is not in range due to a non-functioning power supply. Another interesting application for this diode module is to separate sensitive loads from non-sensitive loads. This avoids the distortion of the power quality for the sensitive loads which can cause controller failures. 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. ORDER NUMBERS Input voltage range Input current Output current Input to output voltage drop typ. 0.78V typ. 0.85V typ. 0.85V Power losses typ. 0W typ. 7.8W typ. 8.5W typ. 17W Temperature range -40°C to +70°C Derating 0.5A/°C Dimensions 32x124x102mm w/o restrictions with restrictions w/o restrictions with restrictions continuous for 5 seconds continuous for 5 seconds at cont. overload/ short circuit input: 2x5A input: 1x10A input: 2x10A at no load input: 2x5A input: 1x10A input: 2x10A operational, +60 to +70°C WxHxD Redundancy Module Wall/ panel mount bracket Side mount bracket Apr. 2014 / Rev. 1.4 DS-YR2.DIODE-EN All parameters are specified at 24V, 20A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted www.pulspower.com Phone +49 89 9278 0

The information presented in this document is believed to be accurate and reliable and may change without notice. No part of this document may be reproduced or utilized in any form without permission in writing from the publisher. PE is the abbreviation for Protective Earth and has the same meaning as the symbol Earth, Ground This document uses the term “earth” which is the same as the U.S. term “ground”. To be defined, value or description will follow later. A figure displayed with the AC or DC before the value represents a nominal voltage with standard tolerances (usually ±15%) included. E.g.:...

1. INTENDED USE This redundancy module is designed for installation in an enclosure and is intended for the general use such as in industrial control, office, communication, and instrumentation equipment. This redundancy module can be used with any type of power supply as long as the maximum ratings are not exceeded. It is suitable for power supplies with constant current overload behavior as well as any kind of “Hiccup” overload behavior. Do not use this redundancy module in equipment, where malfunction may cause severe personal injury or threaten human life. This device is designed for use...

3. INPUT AND OUTPUT CHARACTERISTICS Number of inputs Number of outputs Input voltage Input voltage range Input voltage with restrictions Input voltage range with restrictions Voltage drop, input to output See note 3 on bottom of the table Restrictions apply, see note 3 on bottom of the table. at 2x5A, see Fig. 3-2 at 1x10A, see Fig. 3-3 at 2x10A, see Fig. 3-2 continuous continuous, see note 1 for 5 seconds for maximal 10ms per input continuous for 5 seconds at continuous overload or short circuit, see note 2 per input, -40°C to +60°C voltage applied to the output, continuously allowed Input current...

Fig. 3-2 Input to output voltage drop when both inputs draw current (typical 1+1 redundant case, when the output voltages of the two units are equal or set into “parallel use” mode) Input, Output Current Voltage Drop = U1 - UOUT Fig. 3-3 Input to output voltage drop when only one input draws current QS/QT20 Output Current Not used or power supply with lower voltage Voltage Drop = U1 - UOUT 4. POWER LOSSES Power losses Standby power losses input: 2x5A input: 1x10A input: 2x10A at no output current Fig. 4-1 Power losses Power Losses, typ. Output Current Apr. 2014 / Rev. 1.4 DS-YR2.DIODE-EN All...

□innefUSIOfU Y-Series DC12-48V (120V), 20A, DUAL REDUNDANCY MODULE I 5. LIFETIME EXPECTANCY AND MTBF_ The redundancy module has two input channels which are completely independent from each other. Each control circuit, auxiliary voltage source, or other circuitry in the module are designed separately for each input. The dual input redundancy module can be considered as two single redundancy modules combined together in one housing. The only common point is the circuit trace that ties the two separate circuits together at the output. The MTBF figures below are for the entire dual input module....

□mnefUSIOfU Y-Series DC12-48V (120V), 20A, DUAL REDUNDANCY MODULE Type Bi-stable, quick-connect spring clamp terminals. IP20 Finger safe construction. Suitable for field- and factory installation. Shipped in open position. American Wire Gauge 20-10 AWG Max. wire diameter 2.8mm (including ferrule) Wire stripping length 10mm/0.4inch a) Use appropriate copper cables that are designed for minimum operating temperatures of: b) Follow national installation codes and installation c) Ensure that all strands of a stranded wire enter the terminal connection! e) Do not connect or disconnect the wires from...