The nJoy CT50A is a split-core clamp-on current transformer for measuring current up to 50 A at 50 mA output. It has a turns ratio of 1:1000, a durable UL 94V-0 plastic housing, and 1015 22AWG PVC output conductors. It is suitable for measurement, monitoring, and control systems.

nJoy CT50A is a split-core clip-on current transformer designed for current measurement, consumption submetering and electrical load control. It is used in energy meters, power quality monitoring systems, control devices and control systems.

The housing is made of durable UL 94V-0 grade plastic and the connection is made via 1015 22AWG PVC output conductors. The transformer supports a nominal current of 50 A with an output of 50 mA, and the maximum supported current is 60 A.

– Split core for easy installation without disconnecting the conductor
– Winding ratio Np:Ns = 1:1000
– Current ratio 50 A / 50 mA
– Accuracy 0.5% at RL <= 10 Ohm
– UL 94V-0 plastic housing
– Suitable for consumption measurement, load control and power metering

Technical features:
– Model: CT50A
– Product type: current transformer
– Type: clip-on
– Design: split core
– Winding ratio: Np:Ns = 1:1000
– Current ratio: 50 A / 50 mA
– Maximum supported current: 60 A
– Accuracy: 0.5% at RL <= 10 Ohm
– Housing material: durable plastic UL 94V-0
– Output conductors: PVC, 1015, 22AWG
– Operating temperature: from -40 °C to +65 °C
– Storage temperature: from -45 °C to +80 °C

Package includes: 1x nJoy current transformer CT50A, 1x Instructions

Dimensions: 23.50 x 26.50 x 39 mm
Weight: 75 g
Warranty: 12 months

Same summary

The nJoy CT50A current transformer is primarily intended for users who need a practical solution for monitoring or managing electrical current in connection with smart devices. The design is best suited for households or individuals who want to further increase security and have a better overview of electricity consumption, especially when using smart sockets or other smart telephony accessories. Before purchasing, it is important to check compatibility with a specific device or system, as universal support is not always guaranteed. The product is lightweight and discreetly designed, but is not intended for demanding professional installations or advanced monitoring of larger current circuits.

Recommendation source: Enaa guides and team experience.

User view

This transformer is typically used by consumers who want to improve control over their home's energy consumption or are looking for a smart solution for safer use of electrical appliances. In practice, it is particularly useful in combination with smartphones or smart home systems where additional current control is required - for example, for charging control or remote monitoring of consumers.

Users often choose the Njoy brand because of its good integration with smart solutions and trust in their proven quality in the field of accessories for the smart use of everyday devices.

Why buy at Enaa

When purchasing from Enaa, you can be sure that the product is carefully presented with factual information, while its compatibility and practical value are clearly visible. A wide range of accessories allows you to easily complete your smart home and compare several suitable solutions in one place.

Answers to frequently asked questions

For which type of devices is the nJoy CT50A current transformer best suited?

The device is best suited for use with simple smart home appliances and systems that support an external current transformer, such as certain smart plugs or relays.

Is the installation of the CT50A transformer difficult?

Installation is not difficult for most users with basic technical knowledge, but it is recommended to follow the manufacturer's instructions and, if necessary, seek expert advice.

Is the transformer suitable for use in every electrical system?

The transformer is not universal for all systems - always check before use whether it meets the requirements or connections of your smart device.

How can a user check if the CT50A is compatible with their system?

The easiest way is to check the technical requirements and instructions of the device in which you want to include the transformer and make sure that the current values correspond to the CT50A limits.

Description updated: April 2026