# HT HTFLEX33E 3000A AC Flexible Clamp Meter

# HT HTFLEX33E 3000A AC Flexible Clamp Meter

## Key Features At A Glance

-   Maximum input rating CAT III 1000V / CAT IV 600V with double insulation for safe use in distribution and service-entrance environments
-   3000A AC RMS measurement range with 0.5% of reading accuracy at 25°C
-   Flexible 600 mm coil accommodates conductors up to 174 mm diameter for measurements around large cables and busbars
-   Frequency range from 10 Hz to 20 kHz suitable for harmonic and non-sinusoidal current analysis
-   Output signal of 85 mV AC at 1000 A RMS / 50 Hz with 170Ω ±20Ω output impedance for connection to compatible instruments
-   2 m double-insulated connection cable terminated in a Hypertac connector
-   Position sensitivity of ±2% of reading and temperature coefficient of ±0.005% of reading per °C maximum
-   Operating temperature range of -20°C to +80°C; storage range of -40°C to +90°C

The HT Italia HTFLEX33E is a flexible clamp meter designed to measure AC current up to 3000 A RMS using a flexible coil that wraps around the conductor under test. Unlike rigid-jaw clamp meters, the flexible coil design allows the probe to be looped around large cables, busbars, or conductor bundles that cannot fit inside conventional clamp jaws, making it well suited to measurements in distribution panels and around large electrical infrastructure.

A flexible clamp meter of this type is used to measure current non-invasively — the conductor does not need to be broken or disconnected to make the measurement. The HTFLEX33E supports conductors up to 174 mm in diameter and a 600 mm flexible coil length, which extends its reach to large-conductor applications where standard clamp meters cannot mechanically engage the conductor.

ValueTronics International stocks and ships test and measurement equipment from its 20,000 sq ft secure facility at 1675 Cambridge Drive, Elgin, Illinois. Equipment is held, inspected, and processed in-house by our team rather than drop-shipped from third parties, giving our customers a single accountable source for current-condition specifics, accessory verification, and order fulfillment on every transaction.

## Product Core & Specifications

Electrical Specifications

Measurement range

3000A ACRMS

Output signal (@ 1000ARMS, 50Hz)

85mV AC

Output impedance (@ 50Hz)

170Ω ± 20Ω

Min allowed load impedance

100kΩ

Accuracy (at 25°C)

± 0.5%rdg

Maximum frequency

10Hz ÷ 20kHz

Position sensitivity

± 2%rdg

Temperature coefficient

± 0.005%rdg maximum /°C

Measurement category

CAT III 1000V, CAT IV 600V

Insulation

Double insulation

Pollution degree

2 according to IEC/EN61010-1

General Specifications

Flexible clamp length (double insulation)

600 mm

Maximum conductor diameter

174 mm

Instrument connection cable length

2m (double insulation)

Output connection

2m cables with Hypertac connector

Operating temperature

\-20°C ÷ +80°C

Storage temperature

\-40°C ÷ +90°C

Operating humidity

15% ÷ 85%HR, without condense

Reference Guidelines

Safety

IEC/EN61010-1:2001  
IEC/EN61010-031:2002  
IEC/EN61010-2-032:2002

**Important:** Minimum allowed load impedance: 100 kΩ. Maximum frequency: 10 Hz to 20 kHz.**Important:** This instrument complies with the requirements of the European Low Voltage Directives 2014/35/EU (LVD) and EMC 2014/30/EU.**Important:** This instrument satisfies the requirements of 2011/65/EU (RoHS) directive and 2012/19/EU (WEEE) directive.

**Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.**

## Details

- **Price:** 345.0 USD
- **Vendor:** HT
- **Type:** Accessory
- **Tags:** Current Clamp, HT Instruments, Manufacturers, Other Equipment, product_manual_group_3, Product_new

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 345.00 USD | In stock |

## Images

- HT HTFLEX33E 3000A AC Flexible Clamp Meter

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> Source: [ValueTronics](https://valuetronics.com/products/htflex33e-ht-instruments-current-clamp-new)
> Updated: 2026-05-30