The T & R 50A-3PH features an easy to use interface and simple panel layout. Ideal for maintenance and commisioning engineers, every function status can be seen at a glance, with no complex menu navigation.
A range of outputs are available, from low mA currents up to 50A and voltages of up to 18V are available on the main outputs. Full scale of the meter and trip level can be set independently of the selected output, via three true RMS metering ranges.
The tester is protected from overcurrent, duty cycle and thermal trips, with any trip condition visible to the user. Inputs and outputs are also fuse protected.
A flexible timing system allows you to measure trip times, reset times and reclose times quickly and accurately. The timing system can also be used as a standalone timer and the contact inputs are independently isolated.
Suitable for testing single & three phase protection including:
Over & Under Current Relays
IDMT Relays
Auto-Reclosers
Time Delay Relays
Earth Fault Relays
Miniature Circuit Breakers
Power Relays
Tripping Relays
Thermal Relays
The standard model is supplied with an aluminium carry case, however there is an option to add a heavy duty peli-case, which also has space for the test leads.
All units are calibrated by the manufacturer prior to shipping, however there is no certification included. If you require a full calibration certificate, please contact us for details.
This product is only made to order, therefore please allow a delivery time of 4 - 6 weeks and contact us for confirmation at the time of order.
Why choose Instrotech for your electrical test equipment?
With over 40 years’ experience supporting UK electricians, technicians and engineers, Instrotech is your trusted partner for quality tools and expert service. When you purchase from us, you benefit from:
Free UK shipping on all orders
Access to our knowledgeable technical support team
Available calibration services to maintain safety compliance
A 90-day money-back guarantee for complete peace of mind
We’re committed to helping you work safely and efficiently with industry-leading products and ongoing support.