Cut Sheet

eFab Components
14
Fire Alarm Boxes and Fittings
Easytoidentifyandinstall.
Steel City
®
Fire Alarm Boxes and Fittings can meet all of your
visualidenticationrequirementsforrealarmsystems—and
make installation and upgrades faster and easier than ever
before. Available in a variety of sizes to accommodate new
or old work configurations, these boxes are simple to install
with high-quality Thomas & Betts fittings. Plus the bright
red finish eliminates time-consuming painting of existing
fixtures and provides long-lasting identification in even the
harshest environments.
TC122A-FA
TK122A-FA
52171-EXTOWRD
52171-EXTRD
72171-1234 RD
52151-1234RD
52171-1234RD
52-C-1RD 52171-CV-1234RD 53171-1234 RD
TK121A-FA
TC121A-FA
Fire Alarm Boxes
Cat. No. Description Ears Brkts.
Each Side
Conduit
Each End
Conduit
Bottom
Conduit
Cu. Inch
Capacity
Std.
Ctn.
52171-1234RD 2"-deep 4-square red box — — 2½", 1½" & ¾"E 2½", 1½" & ¾"E 3½", 2½" & ¾"E 30.3 50
52151-1234RD 1½"-deep drawn red box — — 2½", 1¾" 2½", 1¾" 3½", 2¾" 21.0 50
72171-1234RD 2"-deep 4⁄" red box — — 3½" & ¾"E 3½" & ¾"E 3½", 2½" & ¾"E 42.0 20
52171-CV-1234RD 2"-deep 4-square red box
with CV bracket
— CV 2½", 1½" & ¾"E 2½", 1½" & ¾"E 3½", 2½" & ¾"E 30.3 50
52171-EXTRD 2"-deep 4-square red box
with ext. ring
— — 4½", 2½" & ¾"E 4½", 2½" & ¾"E 3½", 2½" & ¾"E 60.6 25
52171-EXTOWRD 2"-deep 4-square red box
with ext. ring and old work ears
Yes — 4½", 2½" & ¾"E 4½", 2½" & ¾"E 3½", 2½" & ¾"E 60.6 25
52-C-1RD Flat 4-square red cover — — — — — — 100
53171-1234RD 2"-deep 4-square
red extension ring
— — 2½", 1½" & ¾"E 2½", 1½" & ¾"E — 30.3 25
Fire Alarm Fittings
Cat. No. Description
Std.
Ctn.
TC121A-FA ½" Red Steel EMT Set Screw Connector 50
TC122A-FA ¾" Red Steel EMT Set Screw Connector 50
TC123A-FA 1" Red Steel EMT Set Screw Connector 25
TC721A-FA ½" Red Insulated Steel EMT Set Screw Connector 50
TC722A-FA ¾" Red Insulated Steel EMT Set Screw Connector 50
TC723A-FA 1" Red Insulated Steel EMT Set Screw Connector 25
TK121A-FA ½" Red Steel EMT Set Screw Coupling 50
TK122A-FA ¾" Red Steel EMT Set Screw Coupling 50
TK123A-FA 1" Red Steel EMT Set Screw Coupling 25