Seaward Powercheck 1557

The PowerCheck 1557 is a robust and comprehensive verification device designed specifically for routine performance checks of Portable Appliance Testers (PAT) and Installation Testers. Housed in a rugged, drop-resistant enclosure, it enables quick and reliable verification of key test functions between formal calibrations—ensuring instruments continue to operate correctly while in use.

Importantly, the PowerCheck 1557 is not a substitute for full, traceable calibration, but rather a valuable tool for periodic checking in line with quality assurance protocols and compliance requirements.

Compatible with a wide range of standards—including BS 7671, BS EN 61557, the IET On-Site Guide, and the IEE Code of Practice—this device helps meet the ongoing verification needs demanded by regulatory bodies such as NICEIC, ELECSA, and CORGI.

Please note that this items has a 6-8 week delivery time.

The PowerCheck 1557 supports verification of:

• Earth Continuity
• Insulation Resistance
• RCD Trip Time
• RCD Trip Current
• Loop Impedance
• PE Conductor Current
• Touch Current
• Flash Test parameters

It comes pre-fitted with an Australian plug and also includes an outlet adapter suitable for Australian power outlets, making it ready for immediate use in Australian test environments.

Insulation Resistance Verification

Open circuit test voltage:
• 250V < Un < 375V indication
• 500V < Un < 750V indication
• 1000V < Un < 1500V indication

Test current: In > 1mA into 1000 ohm/V

Max test current: < 2mA

Test resistances: 0.25 MΩ, 0.5 MΩ, 1.0 MΩ

Earth Loop Verification

Test values:
• Loop
• Loop + 1Ω
• Loop + 180Ω

RCD Verification

Trip current: 10mA, 30mA, 100mA

Trip times: 20ms, 40ms, 500ms

Test current multiplier: ½ Irn, Irn, and 5 Irn

Voltage Verification

Test voltage: 240V AC RMS test output

PAT Functions

Earth Continuity Verification
Test resistances: 0.2Ω and 2Ω

Insulation Resistance Verification
Test resistances: 500kΩ, 1MΩ, and 2MΩ

PE Conductor Current
Test currents*: 0.1mA, 0.25mA, and 0.5mA

Flash Test Current
Test currents*: 0.5mA, 1mA, and 1.5mA

Additional Information
Power supply: 230V AC ±10%

Dimensions / Weight: 210mm x 145mm x 85mm / 1kg

1 Year