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Compact RCD Socket Tester with Audible Alarm
The Fluke ST240+/UK RCD Socket Tester with Beeper provides fast and reliable verification of 230 V electrical outlets. Designed for UK-style socket configurations, this portable diagnostic tool detects correct wiring as well as five common electrical installation faults. Featuring bright LED indicators and a switchable audible tone, the ST240+ simplifies circuit tracing and RCD functionality checks under CAT II 300 V safety conditions.
Industrial Use Cases
- Fast Circuit Breaker Identification: Plugging the tester into an outlet and listening for the audible beeper to turn off or on while toggling breakers in the panel.
- RCD Outlet Safety Testing: Verifying single-push RCD trip functionality on protected circuits in residential, commercial, and healthcare facilities.
- Visual Wiring Fault Diagnostics: Identifying inverted phase/neutral wires, missing earth connections, and neutral faults using three front-panel LEDs and the reference chart.
Key Specifications
| Parameter | Value |
|---|---|
| Rated Operating Voltage | 230 V AC +/-10% at 4 mA |
| Operating Frequency | 50 Hz |
| Power Consumption | 0.92 W typical |
| Fault Diagnostics | 6 wiring conditions (Correct, Earth fault, Neutral fault, Live fault, Live/Neutral reversed, Live/Earth reversed) |
| RCD Test Function | Yes (integrated button) |
| Audible Alarm | Integrated switchable beeper |
| Display / Status Lights | 1 Red, 2 Green LEDs |
| Safety Rating | CAT II 300 V |
Package Contents
- Fluke ST240+/UK RCD Socket Tester with Beeper
- Integrated UK-plug interface
- Quick Reference Chart on housing