Is this for copper wire only?,or will they work for aluminum wire?..I have seen them used for just sprinkler systems.

yes they will work for aluminum wire also

The rated voltage is 600v. can i assume it is safe to use in 240vac wiring system?

Yes, 600v is a maximum, so lesser voltages would meet the specification.

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Wire-Nut 30-074J Wire Connector Cable Binder

Wire-Nut 30-074J Wire Connector Cable Binder

Product ID: 563613854

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Details

Color
Yellow
Gauge
12.0
Connector Type
Twist
Contact Material
Copper
Insulation Material
Polypropylene

⚡Rated for up to 600V max

🔌Supports 2x 18 to 3x 12 gauge wires

🛠️Self-threading square-wire spring grip

Description

🔗 Lock in your connections with confidence—no twists, no worries!

DURABLE RELIABLE - Built to maintain a positive grip under demanding conditions
HIGH VOLTAGE ASSURANCE - Engineered to safely manage up to 600 volts
NO PRE TWISTING NEEDED - Save time and avoid hassle with instant wire binding
SECURE GRIP TECHNOLOGY - Square-wire spring creates its own threads for a rock-solid connection
VERSATILE WIRE COMPATIBILITY - Handles multiple wire gauge combos effortlessly

The Wire-Nut 30-074J Wire Connector Cable Binder is a high-performance electrical connector designed to securely bind two 18 to three 12 gauge wires. Rated for up to 600 volts, it features a unique fixed square-wire spring that self-threads onto conductors, eliminating the need for pre-twisting and ensuring a reliable, long-lasting connection.

Specifications

ASIN	B000LDO22I
Best Sellers Rank	#484,902 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,222 in Electrical Wire
Date First Available	October 26, 2005
Is Discontinued By Manufacturer	No
Item Weight	14.6 ounces
Item model number	30-074J
Manufacturer	IDEAL INDUSTRIES
Product Dimensions	6.2 x 4 x 2.5 inches

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