Limit Switch for XCMG XCT100L7 Truck Crane

LIMIT SWITCH FOR XCMG XCT100L7 TRUCK CRANE

Precision Safety Control for XCMG XCT100L7

This limit switch is an engineered OEM-grade replacement specifically designed for the XCMG XCT100L7 100-ton truck crane. It serves as a critical safety interlock device that monitors the mechanical travel limits of the boom telescopic sections, hoist drum, and outrigger cylinders. When the moving parts reach their pre-set end positions, this switch sends an electrical cut-off signal to the crane’s PLC (Programmable Logic Controller), preventing over-extension, cable snapping, or hydraulic overload.

Electrical Ratings

• Rated Voltage: AC 250V / DC 125V

• Rated Current: 15A (resistive load)

• Contact Configuration: 1NO + 1NC (SPDT snap-action)

• Insulation Resistance: ≥ 100 MΩ (at 500V DC)

• Dielectric Strength: 1,000V AC for 1 minute between terminals and housing

   Mechanical & Environmental Specifications

• Actuator Type: Lever roller plunger (adjustable angle: ±20°)

• Operating Torque: 0.5 N·m (max)

• Mounting Hole: 4.5 mm diameter, 48 mm pitch (compatible with standard XCMG bracket)

• Protection Class: IP67 (dust-tight and waterproof up to 1-meter immersion)

• Operating Temperature: -25°C to +85°C (suitable for extreme construction site environments)

• Housing Material: Glass-fiber reinforced thermoplastic (flame-retardant UL94-V0)

• Mechanical Life: ≥ 10,000,000 operations

Direct Replacement For:

• XCMG original part number: ZBL-1007-LS (verify before ordering)

• Compatible with chassis serial numbers starting with XCT100L7-2023 and later.

Critical Crane Functions This Switch Controls:

Why Choose This Limit Switch for Your XCT100L7?

1. Drop-in fitment – No bracket modification required. Uses factory bolt holes.

2. Gold-plated contacts – Ensure low resistance and stable signal transmission even in humid port environments.

3. Sealed boot around plunger – Prevents cement dust and sand from jamming the mechanism (a common failure point on standard switches).

4. 100% electrical test – Every unit is cycled 500 times under load before packing to guarantee zero defect.

Installation & Safety Note

Important: Disconnect the crane’s main battery power before replacing this switch. Adjust the roller lever so that it makes contact with the cam plate at 75% of the total stroke – this ensures the snap-action triggers precisely at the mechanical hard-stop limit. After installation, perform a manual slow-motion test on all axes without load to verify correct cut-off points.