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Seaward PowerTest 1557 Multifunction Installation Tester

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  • One of the smallest mutlifunction testers on the market

  • Unique cordless probe for easier testing

  • Measures insulation, earth continuity, loop impedance, RCD trip current, voltage, frequency and more

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Seaward Powertest 1557 MultiFunction Installation Tester

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  • Description

Seaward PowerTest 1557 Multifunction Installation Tester Details

Designed with portability in mind, Seaward's Powertest 1557 is a lightweight, ergonomically designed multifunction testing instrument that is a perfect addition to any professionals' range of instruments.

Capable of carrying out a wide range of testing procedures, the Powertest 1557 can be used to test earth continuity, insulation at 100V, 250V and 500V, non-trip loop impedance, line impedance, RCD, trip current and also carries out voltage and frequency measurements.

One of the most unique functions of the Powertest 1557 is the fact that it comes with a cordless probe. This makes it much easier to test as you don't have to worry about wires getting in the way; simply hold the probe in one hand and the lightweight multifunction tester in the other.

The 1557 also runs on rechargeable batteries, is compliant with IEC 61010-1, EN 61557 and is CAT III 300V rated.

Key Features

  • Smallest MFT in its class
  • Lightweight design for a comfortable hold
  • Unique cordless probe
  • Rotary dial for choosing between functions
  • Backlit LCD screen
  • Earth continuity testing
  • Insulation testing at 100, 250 and 500V
  • Non-trip loop impedance testing
  • Line impedance testing
  • RCD trip current testing
  • Voltage/frequency measurements

Supplied With:

  • Seaward PowerTest 1557 Multifunction Installation Tester
  • 2 Year Warranty
  • 6 x 1.5V Cell LR6 Type AA Alkaline Batteries
  • Test Lead (1.5m 13A UK Plug to Red, Black, Green 4mm Shrouded Safety Plugs)
  • Alligator Clips (Red, Black and Green)
  • Test Lead Set
  • Red Cordless 4mm Shrouded Safety Test Probe
  • Manufacturer's Calibration Certificate
Questions?Do you have a question about this product? Call our customer service team on 01642 631685.
  • Technical Specs

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

RCD Trip Time

  • Supply Voltage     195 - 253V, 45 - 65Hz
  • Test Currents     10, 30, 100, 300, 500mA
  • Trip Time Ranges     0ms - 2000ms at ½IDn
  • 0ms - 300ms at IDn general
Questions?Do you have a question about this product? Call our customer service team on 01642 631685.
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