Southwire · Updated August 2026
Southwire 21050T / 21550T 400A True RMS AC/DC Clamp Meter: full specs
Southwire 21050T / 21550T 400A True RMS AC/DC Clamp Meter. Every price and spec below is linked to its source and dated — no guesses.
Source: southwire.com verified ✓ corroborated verify in ledger
Specifications
| Price (US) | Not published Southwire sells through distributors/retailers rather than displaying consumer pricing on southwire.com, and no reliably current US retail price could be confirmed for either SKU via direct page access during this research pass (Amazon, Home Depot, Grainger, and Zoro all blocked automated access); priceUsd is left null rather than guessed. A used unit was seen at $39.90 on eBay, which is not usable as a new-unit price reference. |
|---|---|
| Brand | Southwire |
| Released | — |
| Ac current range | 400 A |
| Dc current range | 400 A (per user-facing marketing copy and verified purchaser reviews on southwire.com describing DC clamp-amp use; exact numeric DC accuracy table not published on the fetched product page) |
| Jaw opening | — |
| Ac dc voltage range | — |
| True rms | Yes |
| Resistance continuity | — |
| Capacitance | Yes |
| Temperature | Yes |
| Cat safety rating | CAT III 600V |
| Display count | — |
Source: southwire.com (verified 2026-08-05) · corroborated by amazon.com. CORRECTED / CLARIFIED FROM SEED: Southwire's own current site catalog no longer surfaces the seed model '21050T' — searching southwire.com for it resolves to model 21550T, '400A AC/DC Clamp Meter with True RMS, Built-In NCV, Worklight, and Third-Hand Test Probe Holder' (Southwire # 65031840), which Southwire's Features & Benefits and Specifications sections describe identically to how 21050T is marketed by third-party retailers (Amazon, Gordon Electric Supply, Alarmax) — 21550T appears to be the current-catalog successor SKU for the same 400A True-RMS AC/DC clamp meter design, similar to a running running-change part number. Southwire's own page confirms 400A AC/DC current range, CAT III 600V rating, True RMS accuracy, built-in NCV, and that the unit ships with a Type K temperature probe (implying temperature capability) and capacitance/frequency/duty-cycle functions per Amazon's reproduced feature copy — but Southwire's page (a JavaScript-rendered spec table) did not expose numeric voltage, resistance, jaw opening, or display-count figures to automated fetch, so those are left null rather than estimated. The listing is retained under the requested slug/name 21050T with the 21550T successor noted, consistent with how this dataset handles other renamed/successor SKUs.
Frequently asked questions
How much does the Southwire 21050T / 21550T 400A True RMS AC/DC Clamp Meter cost?
The Southwire 21050T / 21550T 400A True RMS AC/DC Clamp Meter has no published US price as of 2026-08-05.
What are the Southwire 21050T / 21550T 400A True RMS AC/DC Clamp Meter's key specs?
Southwire 21050T / 21550T 400A True RMS AC/DC Clamp Meter (Southwire): acCurrentRange 400 A, dcCurrentRange 400 A (per user-facing marketing copy and verified purchaser reviews on southwire.com describing DC clamp-amp use; exact numeric DC accuracy table not published on the fetched product page), trueRms Yes, capacitance Yes, temperature Yes. Full sourced spec sheet verified 2026-08-05.
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