McDonnell & Miller 310464 Model SWA-150S-MD – Switch Assembly
McDonnell & Miller model number SWA-150S-MD is a snap switch assembly with automatic reset for model number 150S-B-MD, 150S-MD, 157S-MD, 157S-P-MD, 157S-R-MD, 157S-RB-MD, 157S-RB-P-MD, 157S-RD-MD, and 157S-RLS-MD controls.