XCMG Truck Crane Wireless Height Limit Switch - A2B Device
This wireless height limit switch is an anti-two-block safety device reference for XCMG truck and truck-mounted cranes. It monitors the hook-block or boom-head condition and communicates with the crane warning or control system. The transmitter and receiver must belong to a compatible system.
Information Required for Matching
XCMG crane model and complete serial number
Readable label, frequency or system references on the original transmitter
Housing shape, antenna, indicator and switch arrangement
Mounting bracket and hanging-weight connection details
Photos and reference information for the paired receiver or display
Whether the request is for transmitter, receiver, weight, cable or complete set
Why System Compatibility Matters
A wireless limit switch may fit physically but fail to communicate with a different receiver generation or control configuration. Identification should therefore include both sides of the wireless system. We do not claim frequency, protocol, ingress rating or cross-brand compatibility unless it is confirmed by the product reference.
Safety Inspection
Before replacement, inspect the hanging weight, actuating cable, bracket, antenna, battery compartment and housing for damage or contamination. Confirm that the receiver has power and that wiring to the crane warning circuit is intact. Functional testing must follow the applicable crane service and safety procedure; this device should never be bypassed to keep the crane operating.
Supply and Packing
Once the system version is confirmed, the switch is protected against impact, moisture and accidental actuation during transport. Small accessories are bagged and labelled separately so the receiving technician can confirm all components before installation.
Frequently Asked Questions
Can any wireless height limit switch work with the existing receiver?
No. The transmitter and receiver must use a compatible system and configuration.
What should be photographed?
Send the switch from all sides, every label, antenna, bracket, hanging-weight connection, receiver and display information.
Can the crane operate with the device bypassed?
The safety device should not be bypassed. Testing and installation must follow the crane manufacturer’s procedure and local safety requirements.
