Seaward 20A 3 Phase Insulation Adaptor

Seaward 20 A 3‑Phase Insulation/Leakage Adaptor — Technical Specifications

Purpose:
This adaptor allows three‑phase appliances and equipment (up to 20 A or 32 A) to be tested for earth continuity and protective conductor leakage current using a compatible Seaward appliance tester. It enables tests under powered conditions on industrial machinery and 3‑phase appliances that cannot be tested with standard single‑phase leads.

General Description

• Designed for use with compatible Seaward PAT testers (e.g., PAC3760DL, PAC3760 Plus, PAC3760 Plus II, Primetest Elite)

• Provides connections for 3‑phase supply up to 20 A or 32 A with a 5‑pin (star) configuration

• Enables earth continuity tests and protective conductor current measurements on 3‑phase equipment

• Displays results (actual readings and Pass/Fail) on the Seaward tester’s screen

⚡ Technical Specification (Typical)

Rated Supply Voltage:

• 3‑phase mains supply (415 V nominal)

Current Rating:

• 20 A (primary adaptor rating; unit supplies 20 A capacity)

Connector Type:

• 5‑pin 3‑phase (STAR configuration) suitable for industrial connectors

Test Functions Supported (with Compatible Tester):

• Earth Continuity Test – Checks protective conductor integrity under 3‑phase load

• Leakage Current Measurement – Measures protective conductor leakage current while the equipment is energized

Display Range (Leakage Measurement):

• Approximately 0.15 mA to 9.99 mA

Measurement Accuracy:

• ±(5% + 2 digits) typical for leakage measurement range

Pass Threshold (Leakage):

• Approximately 5 mA (industry normative value for Class I protection)

Frequency Response:

• 50 Hz (standard mains frequency)

???? Operating Notes

• Must be used only with a compatible Seaward tester that supports 3‑phase measurement

• Powers up the 3‑phase appliance supply so internal circuits are active during testing

• Insulation resistance tests on live 3‑phase loads may require dedicated insulation adapters and are not part of the standard leakage adaptor function

???? Typical Usage

• Earth continuity and protective conductor current testing on 3‑phase industrial machinery, compressors, pumps, heavy-duty tools, and workshop equipment

• Part of in-service electrical safety testing for industrial sites

???? Compatibility

• Compatible with Seaward testers such as PAC3760DL, PAC3760 Plus, PAC3760 Plus II, Primetest Elite, and other units that support 3‑phase leakage test function