OVERLOAD LIMITER

Safety-Critical Load Protection with Audible Alert & Load-Cut Control

The Overload Limiter serves as a vital safety device in crane and hoist systems, actively preventing lifts that exceed rated load capacities. It combines real-time load sensing with programmable threshold management, offering warning signals and load-cut action to protect equipment and personnel.

Proactive Overload Warning & Cut-off
Typically triggers an alarm around 90% of rated load, followed by a relay cutoff or shutdown when threshold is exceeded (e.g., 105%–110%)
Configurable Load Sensitivity
Adjustable set points for alarm and cut-off levels—tailored to specific load requirements—ensuring optimal safety and operational flexibility
LED Indicators & Alarm Feedback
Commonly includes visible and audible alerts. Some models incorporate simplified displays or indicator LEDs to provide clear status feedback.
Robust, Industrial-Grade Construction
Enclosures typically rated IP44 to IP65, with load sensor rated higher for dust and moisture protection, ensuring durability in harsh environments.

Specification	Typical Values
Warning Threshold	~90% of rated load
Load Cut-off Threshold	~105–110% of rated load
Error Tolerance	±3% action error; ≤5% overall accuracy
Relay Contact Rating	~5–10 A @ 250 VAC (NO/NC selectable)
Enclosure Rating	IP44–IP65
Power Supply	Often AC 380 V or 110–230 VAC
Operating Conditions	–20 °C to +60 °C; humidity ≤90% RH
Components	Load sensor, control unit, indicator/alert module

Delayed Response Logic
Works in stages—issue warning at near-capacity, delay before disengagement, and immediate relock at high overload—to reduce operational shocks.
Sensor Versatility
Compatible with different sensor types including side-pressure, shaft/pin, or shear beam types to match crane design constraints.
Data Recording (Optional)
Some advanced models log overload events—duration, frequency, load magnitude—for compliance and maintenance analysis .

Overhead and gantry cranes needing load integrity and safety monitoring.
Retrofit projects upgrading older cranes with modern overload protection.
Heavy-duty industrial zones (steel, mining, ports) where enforcing safe load limits is critical.
High-use crane operations where automatic load shut-off minimizes risk and downtime.

OVERLOAD LIMITER

OVERLOAD LIMITER

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