AMPTEC Research · Accessories & Test Lead Sets
620UK-300V4
Kelvin Clip Lead Set with gold-plated Kelvin clips for the 620UK-V4, the 4-wire version of the 620UK
The 620UK-300V4 is a gold-plated 4-wire Kelvin clip lead set, for the 4-wire 620UK-V4 (5-pin male circular connector): the standard hands-free connection for bridgewire and igniter resistance checks.
Overview
The 620UK-300V4 is the standard hands-free lead set for bridgewire and igniter resistance checks on the 620UK-V4. Leads are 48″ each (96″ total span), 1 lb per set, 5-pin male circular connector to gold-plated Kelvin clips. Operating 0° to 50° C, storage -10° to 70° C. Evencat, sole distributor for AMPTEC Research in Taiwan, quotes accessories with delivery dates.

Key specifications
| Category | Accessory · 620 Series accessories |
|---|---|
| Cable length | 48″ each (96″ total span) |
| Weight | 1 lb |
| Instrument-end connector | 5-pin male circular connector |
| Probe / clip type | Gold-plated Kelvin clips |
| Operating temperature | 0° to 50° C |
| Storage temperature | -10° to 70° C |
| Compatible instruments | 620UK-V4 (4-wire version of the 620UK, also called V4) |
| Manufacturer | AMPTEC Research (made in USA) |
Features
Gold-plated contacts
Low contact resistance and no oxidation, so readings stay repeatable.
4-wire Kelvin connection
Separate current and voltage paths keep lead and contact resistance out of the reading.
5-pin circular connector
5-pin male circular connector at the instrument end, for the 4-wire 620UK-V4.
Custom lengths and probe types
Built to order by AMPTEC; describe the application and we confirm the specification.
Compatibility and applications

Compatibility
AMPTEC instruments the 620UK-300V4 fits
620UK-V4 (4-wire version of the 620UK, also called V4). On this site: 620UK-V4. Ask Evencat if in doubt.
Field
Defense, aerospace and shipboard sites
Igniter circuits, electro-explosive devices and ground bonds differ in contact and span; probe type and lead length decide whether a reading repeats.


Lab
Calibration and QA laboratories
A 4-wire Kelvin connection to a resistance standard or the unit under test removes lead and contact resistance.
QA
Ordnance and pyrotechnics line QA
Batch sampling needs a fast, repeatable contact; keep several probe types on hand.

Options and configuration
Tick what you need; the list goes into the quote request form.
Standard (included)
Options and custom builds
Host instrument
Downloads
Appearance, lead length or battery brand may differ from the photo. Custom lengths and probe types are built to order.
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