When failure is not an option: Single Redundancy Module Data sheet SLR02 • Easy set-up of N+1 redundancies on the DIN-Rail • Decoupling diodes • Ready relay contacts • For use with 24...28V power supplies up to max. 35A Short description When failures might cause cost extensive downtimes, you should design a redundant power supply by using several (N+1) identical power supplies. The redundancy module SLR02 is designed to create an N+1 redundancy in combination with the PULS 24...28V power supplies units SL10, SL20 or SL30 or other 24...28V power supplies with an output current of up to 30A (max. 35A). One SLR02 is required for two power supply units. The module decouples the power supply outputs from each other, so that in case of failure one power supply unit cannot overload the other power supply units. A relay-changeover contact, picked up under normal conditions and dropped in case of failure, indicates the status of each connected power supply unit. A Single Redundancy Module, the SLR01, is available to design a redundancy with one attached power supply unit and an output current of up to 40A (max. 50A). 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 Current per input • nominal value • max. rated Output current • nominal value • max. rated Changeover contact, picked-up during normal operation • relay picks up („ok“) when Vin between Vlow and Vhigh • relay drops out when Vin < Vlow or Vin > Vhigh 30.7 V 30.0 V Hysteresis drops out picks up Upper limit Vhigh • hysteresis Lower limit Vlow • guaranteed range • preset • hysteresis Inverse battery protection Connection • Connector size range via stable screw terminals solid: 0.5 - 6 mm2 flexible: 0.5-4 mm2 Note: The GND connector on the module exclusively serves as intrinsic power supply Construction / Mechanics* Housing dimensions and Weight 48 mm x 124 mm x 102 mm (+ DIN Rail) • WxHxD above/below 10 mm recommended • Free space left/right 10 mm recommended for ventilation 625 g • Weight Design advantages: • All connection blocks are easy to reach as mounted at the front panel Contact load Parallel operation for increasing the power is only permissible if the total output current cannot exceed the maximum rated value of 35A (danger of overloading). Connection • connector size range via stable screw terminals solid: 0.5 - 6 mm2 flexible: 0.5-4 mm2 LEDs on the front panel • for inputs green LED, when Vin between Vlow and Vhigh • for output green LED, when Vout > appr. 2.5...3.5 V Note: • All relay contacts are potential-free. • The SLR02 includes two of these relay contacts, each per input. Further information Test voltage • relay cont., Vin, Vout 500 V AC • Vin, Vout / housing 500 V AC Ambient temperature range Tamb *For further information see data sheets „The SilverLine“, „SilverLine Family Branches“ Order information Order number Single Redundancy Module (Screw mounting set, two needed per unit) 1/2

Data sheet Fail 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