|The redundancy module DRR-20A/40A is the latest offering from one of the world's largest power supply manufacturers, Delta. Redundancy module DRR-20A/40A offers a variable input and output voltage from 22-60 Vdc and a wide operating temperature range from -40°C to +80°C. The state-of-the-art design is made to withstand harsh industrial environments. The rugged, ultra-compact metal case is shock and vibration resistant according to IEC60068-2. Due to the wide range input and output voltage range from 22-60 Vdc, Delta's redundancy module is able to support power supplies in parallel operation. The DRR module has an alarm relay contact as an indicator.