Catalogs > Industrial Controls Catalog > Terminal Blocks and Wiring Systems > Terminal Blocks, NEMA/EEMAC > NEMA/EEMAC Terminal Blocks
NEMA/EEMAC Terminal Blocks
| Introduction |  |
Open Construction Blocks | |
Isolation Switch Blocks | |
Fuse Blocks | |
Voltage Indicating Blocks | |
Short-Circuit Current Ratings | |
| Product Overview |
Product Overview
Devices available in the Allen-Bradley NEMA/EEMAC⋆ line include Terminal Blocks, Isolation Switch Blocks, and Fuse Blocks.
Terminal Blocks
Allen-Bradley NEMA/EEMAC terminal blocks are available in ten colors for easy circuit identification. Colors and suggested
uses are:
- RED for AC Control Circuits
- BLUE for DC Control Circuits
- BLACK for AC/DC Power Circuits
- ORANGE for Data Collection Circuits
- GREEN for Ground Circuits
- YELLOW for Externally Fed Circuits (Interlocks)
- BROWN for Miscellaneous Circuits
- VIOLET/GREY to denote PLC Inputs and Outputs
- WHITE for Neutral Circuits
Most NEMA/EEMAC blocks are available preassembled on a breakaway mounting channel, complete with one end anchor, one retaining clip, and one end barrier.
Open Construction Terminal Blocks
Open construction blocks (Styles C and F) allow easy visual verification that the wire is properly positioned in the clamping area, and allows the use of a standard screwdriver for wiring. Style C and F blocks mount securely on Allen‑Bradley rail.
Cat. No. 1492-CAM blocks also mount on DIN Rail. Several Style C blocks accept a snap-on marker for marking long wire identifications. All open construction blocks have:
- Tin-plated copper alloy connections for corrosion resistance
- A write-on marking surface for easy circuit identification
- Optional marking strips to make mass markings easier
Isolation Switch Blocks
- Allow easy, positive electrical circuit isolation
- Are available in both open and high density styles
- Feature a write-on marking surface for easy circuit identification
Fuse Blocks
- Provides a simple way to add overcurrent protection into a circuit
- Can be used with the following fuse styles: 13/32 in. x 1-1/2 in., 1/4 in. x 1-1/4 in., and GMT-type alarm fuses. Blown fuse indicators are available on the 1/4 in. x 1-1/4 in. and 13/32 in. x 1-1/2 in. blocks. The indicator lights up when the fuse is blown, speeding 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.
UL and CSA File Numbers
NEMA/EEMAC Style Terminal Blocks have a 94-V2 flammability rating. The NEMA/EEMAC line is UL Recognized and CSA Certified.
- UL File Number E40735, Guide Number XCFR2
- UL File Number E34648, Guide Number IZLT2 (for Catalog Number 1492-CE6 only)
- CSA File Number LR67896, Class 6228-01
⋆ NEMA — National Electrical Manufacturer’s Association
EEMAC — Electrical and Electronic Manufacturer’s Association of Canada