Bulletin 700S Safety Relays

The Allen-Bradley Bulletin 700S Safety Relay family is a line of forced-guided, safety-rated industrial and IEC control relays designed for machine safety circuits requiring positive-opening contacts and reliable fault detection. With 112 catalog numbers in the family, buyers select a part by decoding several key positions: the CF vs. EF designation distinguishes standard industrial contact form from IEC control relay construction; the contact arrangement code (e.g., 440 = 4 NO/4 NC, 530 = 5 NO/3 NC, 620 = 6 NO/2 NC) defines pole count; and the coil voltage suffix (e.g., BC = 24V DC electronic, DC = 120V 60 Hz, KJC = 24V 50/60 Hz AC) specifies operating voltage and termination style. A CFM prefix denotes a master relay variant (e.g., 700S-CFM530EJC, 24V DC, 2 NO/2 NC), while bifurcated contacts are indicated by a B infix (e.g., 700S-CFB620DC, 120V 60 Hz, 3 NO/1 NC). Popular catalog numbers span 440V/480V AC (700S-CF530BC) through low-coil 12–20V DC configurations (700S-EF440EQC). Consult the Guardmaster Safety Relay Technical Data (440R-TD001) for complete catalog-number construction, contact ratings, and safety category references.