Our NEMA Terminal Blocks offer easy wiring with standard size screwdrivers, easy visual verification of proper wire position and easy marking. Most of our NEMA blocks are available pre-assembled on a breakaway-mounting channel, complete with one end anchor, retaining clip and one end barrier. We offer four types of NEMA Terminal Blocks: open construction, voltage-indicating, fuse, and isolation switch.
NEMA Terminal Blocks
Fuse Terminal Blocks
Our Bulletin 1492 Fuse Terminal Blocks provide a simple way to add overcurrent protection into a circuit. The status indicator lights when the fuse is blown, helping to speed troubleshooting. The GMT-type fuse block has a visual alarm flag that also acts as an output contact for an electrical signal when the fuse is blown.
NEMA Voltage-indicating Terminal Blocks
Our Bulletin 1492 NEMA Voltage-indicating Terminal Blocks provide visual voltage indication across the upper and lower terminals.
Open Construction Terminal Blocks
Our Bulletin 1492 Open Construction Terminal Blocks (Styles C and F) provide visual verification that the wire is properly positioned in the clamping area. You can use a standard screwdriver for wiring the blocks. Styles C and F blocks mount more securely on Allen‑Bradley® rail; some also mount on DIN rail. Several Style C blocks accept snap-on markers for marking long wire identifications.
Isolation Switch Terminal Blocks
Our Bulletin 1492 Isolation Switch Terminal Blocks provide positive electrical circuit isolation. They are available in open and high-density styles.