The WR51 Sheltered from Sector Microwave Industries is a Waveguide Switch with Frequency 15 to 22 GHz, Insertion Loss 0.1 dB, Isolation 60 dB, Supply Voltage -54 to 32 V, Current 0.5 to 1.5 A. Tags: Motorized. More details for WR51 Sheltered can be seen below.