DTK-HW Series 
                DITEK’s “HW” series of  surge protectors are engineered and manufactured to the exacting  standards of the life safety industry. More fire alarm panels worldwide  are protected by the 120 HW than any other protector. HW products are  available in 120V, 240V, or 120/240V single phase configurations.  Parallel connected AC surge protector.  | 
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