Fluke ST240+ RCD Socket Tester with Beeper
The Fluke ST240+ is a plug-in socket tester that checks whether a mains socket is wired correctly and whether its RCD protection trips as it should. Plug it into an outlet, read the three LED lights against the supplied chart, and you can identify one of six wiring conditions in seconds. It is a fast, pocket-sized verification tool for electricians and maintenance staff working on socket-outlet circuits.
Brand and standards
Fluke is one of the most trusted names in electrical test and measurement, and Powerpoint Engineering is an authorised Fluke distributor in Ireland. The ST240+ works on both standard socket outlets and RCD-protected outlets, and its dedicated RCD test button confirms that a protective device switches off correctly when tested. Because it is a quick go/no-go checker rather than a measuring instrument, it complements, rather than replaces, a full installation tester for certification work.
Applications
The ST240+ suits day-to-day socket verification and fault-finding:
- Confirming correct wiring after installing or altering socket outlets
- Spotting common faults such as reversed live and neutral, an earth fault, or a neutral fault
- Press-button checks that an RCD-protected outlet trips when it should
- Tracing which breaker feeds an outlet by listening for the audible beeper at the consumer unit
Specifications
|
Feature |
Fluke ST240+ |
|
Type |
Plug-in RCD socket tester with beeper |
|
Indication |
Three LED lights |
|
Wiring conditions detected |
Six, via LED chart |
|
RCD function |
Dedicated RCD test button |
|
Audible beeper |
Signals live voltage; can be muted |
|
Socket types |
Standard and RCD-protected outlets |
Key features
- Three bright LEDs read against a chart for fast, clear interpretation
- Indicates correct wiring, earth-connection faults and neutral-connection faults
- Beeper sounds when voltage is present, so you can find the right breaker without repeated trips to the board
- Mute the beeper for quiet environments such as offices or hospitals
FAQs
What can the ST240+ actually detect?
It identifies six wiring conditions through its three LED lights, including correct wiring, reversed live and neutral, an earth-connection fault and a neutral-connection fault. Its RCD button also checks that an RCD-protected outlet switches off correctly when tested.
What is the beeper for?
The beeper sounds whenever the tester detects voltage at the socket. That lets you trace which breaker feeds an outlet by listening for the sound to stop as you switch breakers at the board, and it can be muted when you need to work quietly.
Can Powerpoint Engineering calibrate my Fluke test equipment?
Yes. Our in-house calibration and repair laboratory services Fluke instruments and issues traceable certificates. Speak to our calibration team to arrange a booking for your installation testers.
To see more options, browse our range of installation testers, or talk to our team about calibration and training for your instruments.
Fluke ST240+ RCD Socket Tester with Beeper Datasheet
For additional technical details about the Fluke ST240+ RCD Socket Tester with Beeper please refer to the product datasheet.
