Product Description

Overview

The LMCK-24 50/5A Accuracy Class 1.3 is a clamp-on, split-core current transformer designed for safe, accurate measurement of AC currents without needing to disconnect or reroute wires. With a primary rating of 50 A and a secondary of 5 A, this CT is ideal for metering, protection, and monitoring applications in industrial, commercial, or residential environments.

Key Features

• Model: LMCK-24

• Primary Current (In): 50 A AC

• Secondary Current (Is): 5 A AC — consistent current ratio 50/5A

• Accuracy Class: 1.3 (i.e. 1.3% accuracy)

• Type: Clamp-on / split-core design — allows installation around conductors without interrupting the circuit

• Inner Diameter (Core Opening): 24 mm — fits conductors sized accordingly without tight bending or unsafe clearance 

• Rated Secondary Output: 5 A; typically used with compatible measurement or monitoring devices 

• Housing & Safety: Flame retardant plastic enclosure, moisture protected; designed for robust service with low maintenance. The external case meets safety/isolation standards. 

• Installation: Self-locking clamp mechanism for quick, safe installation; no need for rewiring the primary conductor or shutting off power (depending on local safety regulations) 

Technical Specifications

Applications

• Energy monitoring and metering in panels, switchboards

• Protection circuits (where Class 1.3 is acceptable) — e.g. overload trip, general indication

• Industrial or commercial installations with retrofit or additions, where opening the circuit is inconvenient

• Integration with panel meters, power analyzers, PLCs, or SCADA systems

Installation & Usage Notes

• Ensure that the conductor to be measured fits comfortably into the 24 mm opening without deformation.

• Secondary output must not be open‐circuited while the transformer is energized — always have the secondary terminated in a load (meter, burden resistor, etc.).

• Install in a location where environmental conditions (temperature, humidity, vibration) comply with the CT’s specifications.

• Use proper insulation / cable protection to prevent damage to wires or the clamp housing.

Safety & Compliance

• Adheres to split-core CT safety norms for insulation and fire resistance (plastic housing, etc.) 

• Class 1.3 accuracy is suitable for general metering / control but not precision billing (unless local regulation allows)

• Secondary must always be loaded; never leave open‐circuit when primary is energised

Benefits

• Non-invasive installation reduces downtime and labour

• Compact design with inner diameter 24 mm fits many typical conductors easily

• Decent accuracy (1.3%) for many monitoring/control uses

• Robust build, minimal maintenance required