WIZ (A2B) Limit Switch

Name: WIZ (A2B) Limit Switch
Brand: WIZ
SKU: 2612
Price: 1840.00 ZAR
Availability: InStock

R 1 ,840.00 Incl. VAT

The WIZ anti-two-block (A2B) limit switch is a critical crane safety device that prevents the hook block from colliding with the boom tip (two-blocking). When the hook lifts too high, it triggers a counterweighted switch, automatically stopping hoist-up motion to prevent broken hoist ropes, dropped loads, and structural damage. This lightweight yet robust switch is the perfect solution to keep your cranes compliant and ready for their next job.

Specs

Universal switch with 1k and 4k7 compatible
Suitable to use with 3,5 kg to 5 kg hanging weight

Only 2 left in stock (can be backordered)

Description
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Key Features and Functions:

Mechanism: A counterweight hangs around the hoist line and is lifted by the hook block when it gets too close to the boom tip, activating the limit switch.
Safety Action: It instantly cuts the power to the hoist-up function, and often also stops telescope-out and boom-down motions.
Durability: Designed for extreme conditions, frequently featuring robust housing for construction, mining, and maritime applications.
Compliance: Essential for meeting OSHA and safety regulations to prevent accidents, including fatalities

These switches are often referred to as winch limit switches or A2B switches and are vital for protecting equipment and personnel.