Ideal Electrical’s In-Sure push-in wire connector has an ergonomic design for easy grip and comfortable installation. The clear shell gives users visual verification of connection, and the UL 94V-2 flame-retardant shell is rated at 221°F. It is approved for bonding and grounding applications.

HellermannTyton’s HelaCon releasable wire connector replaces traditional twist-on wire connectors. It has levers that open to allow insertion and repositioning of wires. Once the wire is inserted, the lever can be snapped closed to establish a secure connection. The lever acts as a quick release, simplifying maintenance.

Ideal Industries’ Twister Proflex mini wire connector features a flexible skirt that provides protection and adapts to tightly fit electrical boxes with limited space. The expanding square-wire spring and polypropylene shell deliver a secure connection. The shell is flame-retardant.

3M’s secure-grip wire connector can be used in a range of residential and commercial wiring jobs. An internal, insulated spring delivers a grip for secure, solid connections. The slip-resistant ridges and straight wing design make installation easy on fingers. The maximum operating temperature is 221ºF.