










⚡ Twist with confidence, connect like a pro!
The IDEAL Electrical Twister PRO (30-644J) is a premium wire connector designed for professional electricians and serious DIYers. Rated for up to 600 volts and compatible with wire sizes from 22 to 8 AWG, it features a durable copolymer shell with a patented expanding square-wire spring for secure, reliable connections. The SureGrip comfort overmold and ergonomic swept wings reduce hand fatigue and increase leverage, enabling faster, safer installations. Sold in a convenient jar of 500, it’s UL certified, flame retardant, and backed by a limited lifetime warranty, making it the go-to choice for efficient, high-quality electrical splicing.







| Color | Yellow,Gray,Red | 
| Connector Type | Twist | 
| Contact Material | Copper | 
| Insulation Material | Polypropylene | 
| Material | Plastic | 
| Brand | Ideal Industries | 
| Specification Met | UL | 
| Temperature Rating | 221 degree celsius | 
| Product Dimensions | 6.5"L x 4.5"W x 11.5"H | 
| Maximum Voltage | 600 Volts | 
| Global Trade Identification Number | 00783250585571 | 
| Manufacturer | IDEAL INDUSTRIES | 
| UPC | 783250585571 | 
| Part Number | 30-644J | 
| Item Weight | 2 pounds | 
| Country of Origin | China | 
| Item model number | 30-644J | 
| Is Discontinued By Manufacturer | No | 
| Voltage | 120 Volts | 
| Item Package Quantity | 1 | 
| Handle Material | Plastic | 
| Measurement System | Inch and Metric | 
| Usage | Crimping,Electrical | 
| Included Components | TWISTER PRO 344 R/Y, 500/JAR | 
| Batteries Included? | No | 
| Batteries Required? | No | 
| Warranty Description | Limited lifetime warranty with proper installation | 
C**S
Wow! One Wire Nut For 22-12 Gauge Wire!!
I was hanging a light recently and didn't have the right color/size connector, so when I saw these it was a no-brainer. This size covers most types of DC and AC wiring I do, from 22-12 gauge.My son is a union electrician and he recommended these Ideal nuts over others because he uses the next larger size regularly.He also told me a great way (see photo) to more easily twist these nuts... a socket! This size Ideal nut fits perfectly into a 12mm metric socket. They also fit into a 1/2" socket, but 12mm is a more snug fit. The standard 12mm socket worked, but the deep well 12mm was perfect, as the nut sort-of clicks into it and stays in place. I found a spare 12mm 1/4" drive deep socket and bought a 1/4" socket to 1/4" hex drive adapter (Dewalt DW2541) for a couple bucks. Now when I need to screw on wire nuts, I simply put the end of the hex drive socket into my hex screwdriver (or drill).Safety Note: Obviously, turn off the power first and use a plastic handled screwdriver to insulate yourself from the metal socket and driver shaft just in case. This isn't an issue with the Klein hex driver I use.These are great quality, super versatile wire nuts!!
S**.
Very good wire nuts
These wire nuts are so much better than the usual ones. They are very secure and are easy to use.
L**N
The best wire nuts used by pros
Best wire nuts on the market buy yourself a jug or 2
M**E
Very nice Quality wire nut
These are very nice. Easy to get tight on the wires. I used them on 4 wire awg 12 and they worked great!
S**A
These are genuine
These are genuine IDEAL large wirenuts. They are really good quality and the little part inside doesn't come out like the cheaper ones. I highly recommend them for larger wires (maybe 12awg +)
J**S
Great for contractors
These are a go to for our shop of electricians. This was a great price, but I was disappointed to not be able to order the smaller wire nuts in a larger container quantity. We go through these very fast and these small containers don’t last long. These twist on well every time, but always pre-twist wires. The protector sleeve is a great feature.
M**.
Can go up to 4x #12AWG solid
Great for tight boxes, like smoke detectors/
R**N
Good
Good
Trustpilot
1 week ago
4 days ago