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T&B 18RA-8 NON BULK STAKON
Features
- These terminals are self-insulated with a PVC insulation sleeve of extra length to give protection and relieve bending stress at wire's flex point. Brazed seam barrel is serrated to obtain high pull-out value.
Certifications
- UL
- CSA
Manufacturer Resources
Product Specs
- A Inches:
- 0.97
- Alternate Package Qty:
- RA867
- Application Tools:
- WT145C, WT2000, WT112M, ERG4001, ERG4003
- B Inches:
- 0.31
- C Inches:
- 0.27
- Flammability Rating:
- UL 94 V-0
- Inner Package:
- 100
- Insulation Type:
- Insulated Vinyl
- M Inches:
- 0.81
- Maximum Insulation Inches:
- 0.15
- Order Multiple:
- 100
- Outer Package:
- 500
- Package Height:
- 8.8
- Package Length:
- 14.9
- Package Type:
- Standard
- Package Width:
- 9.4
- Recommended Tool:
- ERG4001
- Rohs Compliance:
- Yes
- Stock Thickness:
- 0.03
- Stud Size:
- #8
- T B Sold In Uom:
- Each
- T B Weight Per Uom:
- 2.5 lbs. per 1000
- Temperature Rating:
- 105°C
- Terminal Series:
- RA
- Voltage Rating:
- 600V
- Wire Size:
- 22-16
- Department:
- Electrical
- Product Finish:
- Electro Tin-Plated
- Product Color:
- Red
- Product Material:
- Copper
- Product Type:
- STAKON Connector
- Product Group:
- Wire Connectors & Terminals
- Product Subgroup:
- Lugs & Terminals
Thomas & Betts 18RA-8 – Frequently Asked Questions
1) What wire gauge does the T&B 18RA-8 ring terminal accept?
The Thomas & Betts 18RA-8 STAKON ring terminal takes 22 to 16 AWG stranded copper wire, and it's color coded red for that range. The PVC insulation sleeve will accept insulation up to 0.15 inch in diameter, so heavily jacketed or double-insulated leads may not seat fully.
2) Will a T&B 18RA-8 ring terminal fit a #8 screw or stud?
Yes, the 18RA-8 is built for a #8 stud. The ring tongue measures 0.31 inch across (B) with a 0.27 inch hole dimension (C), and overall length is 0.97 inch, so allow that much clearance behind the terminal block or ground screw.
3) What crimp tool should I use on T&B 18RA ring terminals?
ERG4001 is the recommended tool for the 18RA-8. T&B also lists the WT145C, WT2000, WT112M and ERG4003 as approved application tools. The barrel is a brazed seam with serrations for pull-out strength, so it needs a proper insulated-terminal crimp die rather than a generic pliers crimp.
4) Is the 18RA-8 STAKON terminal rated for 600V control panel wiring?
Yes. The 18RA-8 carries a 600V rating with a 105 degrees C temperature rating, and it is UL and CSA recognized with a UL 94 V-0 flammability rating on the vinyl insulation. That combination covers typical 600V control and motor-control panel work.
5) How many 18RA-8 terminals come in a pack and do I have to buy a full box?
The 18RA-8 ships in an inner pack of 100 with 500 to the outer carton, and the order multiple is 100 pieces. It is priced each but ordered in hundreds, so plan quantities in round 100s.
6) Are T&B 18RA-8 terminals copper and RoHS compliant for a spec job?
The barrel and tongue are copper with an electro tin-plated finish, stock thickness 0.03 inch, and the part is RoHS compliant. The insulation is insulated vinyl. That's the usual answer needed for submittal packages on panel and fixture wiring.
7) Should I use a ring terminal like the 18RA-8 or a fork terminal on my terminal strip?
A ring tongue like the 18RA-8 has to come off the stud to be removed, which is exactly what you want on vibration-prone or safety-critical connections such as ground screws and motor leads. A spade or fork tongue slides out under a loosened screw and is quicker for frequent service work. If the #8 screw can be fully backed out, the ring is the more secure choice.
8) Why does the 18RA-8 have a long insulation sleeve?
The PVC sleeve on the RA series runs extra long past the barrel to support the wire where it flexes, relieving bending stress at the conductor's flex point. That matters on door operators, panel doors and any lead that moves, where a bare crimp barrel would let strands fatigue and break right behind the terminal.
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Does the Thomas & Betts 18RA-8 come with a warranty?
Absolutely. The Thomas & Betts 18RA-8 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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