Solid State Mechanical Contactor Replacements

Solid State Mechanical Contactor Replacements
Darrah offers a complete line of Solid State Air Cooled Mechanical Contactor Replacements for welding controls thru 60 KVA. Solid state replacements have no moving parts. No contacts to wear out.

These are simple to install. Complete instructions are included.

Darrah Part Number Welding Rating Amps RMS at 50% duty cycle SCR Voltage Rating (PIV) (VRRM) Suggested Maximum Transformer KVA (2)
  10% 20% 50% 100%   230 Line Volts 460 Line Volts
CMB175-12 310 205 115 60 1200 20 -
CMB175-16 310 205 115 60 1600 - 40
CMB275-12 450 275 140 70 1200 25 -
CMB275-18 450 275 140 70 1800 - 50
CMB300-12 500 330 160 75 1200 30 -
CMB300-12 500 330 160 75 1600 - 60

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