YR80.242 12-28V, 80A, DUAL REDUNDANCY MODULE MOSFET REDUNDANCY MODULE For N+1 and 1+1 Redundant Systems Dual Input with Single Output Suitable for all DIMENSION Power Supplies Except QT40 Series Only 65mV Voltage Drop at 40A Output Current Only 2.9W Loss at 40A and 11.8W at 80A Output Current 160% (130A) Peak Load Capability Reverse Input Polarity Protection Full Power Between -40°C and +60°C Width only 46mm Rugged Metal Housing Easy Wiring: Distribution Terminal for Negative Pole Included 3 Year Warranty GENERAL DESCRIPTION SHORT-FORM DATA The YR80.242 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 40A output current and one output, which can carry nominal currents up to 80A. In addition to the YR80.242, the YR80.241 is also available. This unit has an additional circuit included, which generates a supply voltage for the internal mosfets even when the output of the unit is in a short circuit condition. This makes the unit suitable for any power supplies. Input voltage DC 12-28V Input voltage range 8.4-36.4Vdc Input current 2x 0-40A 2x 40-65A Output current 0-80A 80-130A max. 44A The novelty of this redundancy module is the utilization of mosfets instead of diodes for the decoupling of the two input channels. This reduces the heat generation and the voltage drop between input and output. The redundancy module does not require an additional auxiliary voltage. Due to the low power losses, the unit is very slender and only requires 46mm width on the DIN-rail. Large connection terminals allow for a safe and fast installation. The large international approval package makes this unit suitable for nearly every application. ORDER NUMBERS Input to output voltage drop Power losses Temperature range Derating Dimensions **) Weight continuous for 5 seconds continuous for 5 seconds in overload*) or short circuit mode typ. 65mV input: 2x20A typ. 110mV input: 1x40A typ. 145mV input: 2x40A typ. 220mW at no load typ. 2.9W input: 2x20A typ. 4.7W input: 1x40A typ. 11.8W input: 2x40A -40°C to +70°C operational 2A/°C (output) +60 to +70°C 46x124x127mm WxHxD 370g, 0.81lb *) Currents at voltages below 6V **) Plus 6mm in depth for the screw terminal Redundancy Module Wall/ panel mount bracket Side mount bracket Apr. 2014 / Rev. 1.1 DS-YR80.242-EN All parameters are specified at 24V, 80A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted www.pulspower.com Phone +49 89 9278 0

YR80.242 12-28V, 80A, DUAL REDUNDANCY MODULE 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...

YR80.242 12-28V, 80A, DUAL REDUNDANCY MODULE 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 DIMENSION power supplies except the QT40 series. 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 in hazardous, non-hazardous, ordinary or unclassified locations. 2. INSTALLATION REQUIREMENTS This device...

12-28V, 80A, DUAL REDUNDANCY MODULE I 3. INPUT AND OUTPUT CHARACTERISTICS Input voltage Input voltage range The input circuitry must meet the SELV requirements Voltage drop, input to output Input current max 2x 22A in overload (voltage < 6V) or short circuit mode Peak input current Output current in overload (voltage < 6V) or short circuit mode Reverse current Reverse voltage voltage applied to the output, continuously allowed Output capacitance Fig. 3-1 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...

YR80.242 12-28V, 80A, DUAL REDUNDANCY MODULE 4. POWER LOSSES Power losses Standby power losses input: 2x20A input: 2x40A input: 1x40A, (only one input is connected to input voltage) at no output current, (only one input is connected to input voltage) at no output current, (both inputs are connected to input voltages) Fig. 4-1 Power losses when both inputs draw equal current (typical n+1 or 1+1 redundant case, when the power supplies are set into “parallel use” mode) Power Losses, typ. Losses = ( U1 * I1 + U2 * I2 ) - UOUT * IOUT Fig. 4-2 Power losses when only one input is used Power Losses,...

YR80.242 12-28V, 80A, DUAL REDUNDANCY MODULE 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. If the MTBF number of only...

YR80.242 12-28V, 80A, DUAL REDUNDANCY MODULE 6. TERMINALS AND WIRING Type Solid wire Stranded wire American Wire Gauge Max. wire diameter Wire stripping length Screwdriver Recommended tightening torque Input Screw termination IP20 Finger safe construction. Suitable for field installation. 0.5-16mm2 0.5-10mm2 22-8 AWG 5.2mm (including ferrule) 12mm / 0.5inch 3.5mm slotted or Pozidrive No 2 1.2Nm, 10.6lb.in Output Screw termination IP20 Finger safe construction. Suitable for field installation. 0.5-35mm2 0.5-35mm2 20-2 AWG 18mm / 0.7inch 5mm slotted or Pozidrive No 2 2.5Nm, 22lb.in To connect the...