When failure is not an option: 40 A Redundancy Module Data sheet SLR01 • Easy set-up of N+1 redundancies on the DIN-Rail • Decoupling diode • Ready relay contact • For use with 24...28V power supplies up to max. 50A Short description When failures might cause costly extensive downtimes, a design solution is a redundant power supply that uses several (N+1) identical power supplies. The redundancy module SLR01 is designed to create an N+1 redundancy in combination with the PULS power supply SL40 or other 24...28V power supplies with an output current of up to 40A (max. 50A). One SLR01 is required for each power supply. The module decouples the output of the connected power supply from the others so that in the event of failure one power supply unit cannot overload the other units. A relaychangeover contact, picked up under normal conditions and dropped in the event of failure, indicates the status of the connected power supply unit. A Dual Redundancy Module, SLR02, is available to provide redundancy with two attached power supply units, each with an output current of up to 30A (max. 35A). For smaller current values of 2.5A, 5A and 10A PULS also offers the SLR2, SLR5 and SLR10 power supplies with integrated redundancy modules. Decoupling part Relay contacts Voltage • nominal value • max. rated Relay type 24 V DC 35 V, short-term 45 V Voltage drop Vin → Vout Changeover contact, picked-up during normal operation • relay picks up („ok“) when Vin between Vlow and Vhigh when Vin < Vlow or Vin > Vhigh • relay drops out Upper limit Vhigh • hysteresis Current per in- and output • nominal value 40 A • max. rated 50 A Hysteresis drops out picks up adjustable OK 16...27 V 22.0 V 22 V ± 1% Not OK 21.3 V appr. 0.7 V typ. 50 ms at undervoltage Protection against polarity reversal Lower limit Vlow • guaranteed range • preset • hysteresis • relay delay Connection • Connector size range via stable screw terminals solid: 0.5 - 16 mm2 flexible: 0.5-10 mm2 Contact load Note: The GND connector on the module exclusively serves as intrinsic power supply Connection • connector size range via stable screw terminals solid: 0.5 - 6 mm2 flexible: 0.5-4 mm2 Construction/ Mechanics* LEDs on the front panel • for input green LED, when Vin between Vlow and Vhigh • for output green LED, when Vout > appr. 2.5...3.5 V Housing dimensions and Weight 48 mm x 124 mm x 117 mm (+ DIN Rail) • WxHxD above/below 10 mm recommended • Free space left/right 10 mm recommended for ventilation 646 g • Weight Design advantages: • All connection blocks are easy to reach as mounted at the front panel Note: • All relay contacts are potential-free Further information Test voltage • relay cont., Vin, Vout 3 kV 2.5 kV • relay contacts/PE 500 V AC • Vin, Vout/PE Ambient temperature range Tamb *For further information see data sheets „The SilverLine“, „SilverLine Family Branches“ Order information Order number 40A Redundancy Modul (Screw mounting set, two needed per unit) 1/2

Data sheet Fall Monitor Threshold Adjust Further information, especially about EMC, Connections, Safety, Approvals, Mechanics and Mounting, see page 2 of „The SilverLine" data sheet. Unless otherwise stated, specifications are valid for AC 230V input voltage, +25°C ambient temperature, and 5 min. run-in time. They are subject to change without prior notice. Your partner in power supply: Power Supply PULS GmbH ^PULS GmbH