YR80.241 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 Power Supplies Only 50mV Voltage Drop at 40A Output Current Only 2.7W Loss at 40A and 8.3W at 80A Output Current 160% (130A) Peak Load Capability Reverse Input Polarity Protection Full Power Between -40°C and +70°C Width only 46mm Rugged Metal Housing Easy Wiring: Distribution Terminal for Negative Pole Included 3 Year Warranty GENERAL DESCRIPTION SHORT-FORM DATA The YR80.241 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. The module is suitable for power supplies with constant current overload behavior as well as any kind of “Hiccup” overload behavior. In addition to the YR80.241, the YR80.242 is also available which is cost-optimized and suitable for all DIMENSION power supplies except the QT40 series. Input voltage Input voltage range Input current 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 and is self-sufficient even in case of a short circuit across the output. 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 with a large international approval package. This unit is suitable for nearly every application. ORDER NUMBERS Output current continuous for 5 seconds continuous for 5 seconds at cont. overload or short circuit input: 2x20A input: 1x40A input: 2x40A at no load input: 2x20A input: 1x40A input: 2x40A operational, no de-rating req. WxHxD Input to output voltage drop typ. 49mV typ. 85mV typ. 95mV Power losses typ. 700mW typ. 2.7W typ. 3.6W typ. 8.3W Temperature range -40°C to +70°C 46x124x127mm*) *) plus 6mm in depth for the screw terminal Redundancy Module Wall/ panel mount bracket Side mount bracket Feb. 2014 / Rev. 1.3 DS-YR80.241-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

YR80.241 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...

YR80.241 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 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...

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 65A at continuous overload or short circuit Peak input current Output current at continuous overload or short circuit Reverse current Reverse voltage voltage applied to the output, continuously allowed Output capacitance Note: Ensure that the continuous output current does not exceed 130A. Check the short-circuit current of the power sources and if the power source can deliver more than...

YR80.241 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. Output Current Losses = ( U1 * I1 + U2 * I2 ) - UOUT * IOUT Fig. 4-2 Power losses when only one input is used...

YR80.241 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...

YR80.241 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...