Is the 221 series rated for aluminum?

I do not believe so, I believe you could use the 222 series with the WAGO contact paste - you would need to verify. The issue is always the chemical reaction that can cause a fire when aluminum, copper and moisture is involved. Not a fan of mixing the two types.

box above shows ul listed, etc, but then says "do not work.inder load!". at some point the power(load) has to be turned on, so what does that mean?

I used these lever nuts to power a 6,000 watt dr heater using a 10 gauge solid wire. The plastic gets a little warm. The lever sometimes lifts a little. See that it’s always down. I don’t recommend using these lever nuts where you can’t see them, like behind walls. ‘Do not put under load’ has #1 footnote. I don’t have the box anymore. I can’t tell you what that footnote is.

Can i use these on 12-2 wire?

Yes it will work with 12-2 wire I really prefer to use these when ever I can.

Is there a trick to opening the tabs? Mine will not open at all.

No trick to open. Mine lifted up easily enough and work great. Hold one side in your hand and lift the end of the other side tab where the wire goes into the connector. Make sure that you are lifting only the yellow tab and not catching on the clear edge of the connector under the tab. If necessary - use a flat edge to slip under the tab vice your fingernail for more leverage. (Like a screwdriver)

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Wago 221-612 Lever-Nuts 10AWG 2 Conductor Compact Wire Connectors 10 PK

Wago 221-612 Lever-Nuts 10AWG 2 Conductor Compact Wire Connectors 10 PK

Product ID: 190668843

Details

Gauge
10.0
Connector Type
Clamp
Number Of Contacts
2
Material
Copper
Color
Orange
Brand
WAGO

⚡10AWG power

✅UL Listed

🔗2 conductor

€ 19.49

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Description

🔌 Connect Like a Pro with Wago's Lever-Nuts!

PACK OF 10 - Stock up with a convenient pack of 10 for all your wiring needs.
COMPACT CONVENIENT - Lightweight design (1.58 oz) for easy handling and storage.
QUALITY YOU CAN TRUST - Genuine WAGO connectors, ensuring reliability and safety.
CONNECT WITH CONFIDENCE - Easily connect solid, stranded, and flexible copper wires in seconds.
VERSATILE COMPATIBILITY - Terminates 20-10 AWG solid and stranded wires effortlessly.

The Wago 221-612 Lever-Nuts are a pack of 10 compact wire connectors designed for 10AWG applications. These connectors allow for quick and reliable connections of various copper wire types, including solid, stranded, and flexible. UL Listed for safety, they are a trusted choice for both professionals and DIY enthusiasts.

Specifications

ASIN	B085P2WT8K
Best Sellers Rank	#86,954 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #70 in Electrical Connectors
Brand Name	WAGO
Centerline Length	25.4 millimeters
Color	Orange
Connector Type	Clamp
Current Rating	30 A
Customer Reviews	4.8 out of 5 stars 1,347 Reviews
Gauge	10
Item Dimensions W x H	0.63"W x 0.4"H
Item Weight	17.8 g
Manufacturer	WAGO
Material	Copper
Material Type	Copper
Model	221-612
Mounting Type	Panel Mount
Number Of Contacts	2
Number Of Poles	2
Number of Items	10
Number of Positions	2
Part Number	221-612
Temperature Range	105 °C
UPC	611359336506
Unit Count	10 Count
Upper Temperature Rating	105 °C
Voltage	600 volts

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€ 19.49

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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The product exactly matches the description. Very satisfied with my purchase.

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