PowerTest 1557

Multi functional installation tester with integral probe

Loop test in 5 seconds
Integral probe makes reading results easy
Auto RCD test

Overview Specification

PowerTest 1557

The PowerTest 1557 is a multi function installation tester with integral probe, allowing the instrument to be held and the results to be read at the same time.

The PowerTest 1557 is also very fast, performing earth loop, line loop, PFC and PSC tests with one press of a button in under 5 seconds. It's lightweight, handheld and battery powered.

PowerTest 1557

Technical specification

Earth Continuity

Test Current	>200mA
Display Range	0.00ohms - 199ohms
Resolution	0.01ohms max
Test Lead	Compensation: 0.00ohms - 10.00ohms
Live Circuit Detection	Test inhibit if >30V detected

Insulation Resistance

Test Voltage	100V, 250V, 500V
Display Range	0.05Mohms - 199Mohms
Resolution	0.01Mohms maximum
Live Circuit Detection Test	inhibit if >30V detected

Loop/Line Impedance

Supply Voltage	195 - 253V/440V, 45Hz - 65Hz
Test Current	15mA (non tripping for RCD protected circuits)
Display Range	0.01ohms - 2000ohms
Resolution	0.01ohms maximum
Loop Impedance	Phase to Earth
Line Impedance	Phase to Neutral/Phase to Phase
PFC/PSC Range	0 - 26kA