Nameplate

CatalogueAllen-BradleyControlLogix 1756 removable terminal block

1756-TBCH

Allen-Bradley · PLC I/O module · ControlLogix 1756 removable terminal block confirmed

Manufacturer Allen-Bradley (also Rockwell Automation, AB)
Family ControlLogix 1756 removable terminal block
Category PLC I/O module
Without separators 1756TBCH
Notes 36-position cage-clamp RTB; verified: Rockwell 1756-sg001 ControlLogix Selection Guide

What changes what this is worth

Same catalogue number, different money. These are the attributes that separate two otherwise identical 1756-TBCH units — check each one before you quote or bid.

Series letter

Series letter on the label. Later series are not always backward compatible and sell for more.

Printed on the label, usually right after the catalogue number, as "SER A".

Tested or untested

Tested / as-is / new-in-box. The single biggest multiplier on used price.

Not on the plate. It comes from whoever pulled the unit, and it moves the price more than anything printed.

Others in ControlLogix 1756 removable terminal block

See the whole ControlLogix 1756 removable terminal block family →