# Shelly 120A Clamp Split Core Current Transformer ONLY Compatible With Shelly EM

## Shelly 120A Clamp Split Core Current Transformer ONLY Compatible With Shelly EM

This is the split-core 120A current transformer originally designed for the legacy Shelly EM/3EM screw-terminal connection, used to non-invasively measure higher-current circuits than the standard 50A clamp allows. It is compatible with the older Shelly EM (not the Gen3/Pro range) and, with its connector removed, can also be wired directly to the legacy Shelly EM's screw terminals; two can be run on one legacy Shelly EM for dual-circuit monitoring.

### Specifications

**SKU**

SHELLY 120A CLAMP

**Brand**

Shelly

**Category**

Smart Home

**Key Specs**

Compatible with: legacy Shelly EM (older, screw-terminal generation) — not Shelly EM Gen3/Pro devices; Rated primary current: 120A; Clamp type: split-core; Accuracy: 1%; Electrical strength: 3000VAC 1mA/60s; Cable length: 60cm

## Details

- **Price:** 579.0 ZAR
- **Vendor:** Shelly
- **Type:** Smart Home
- **Tags:** Nology, Shelly, Smart Home

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 579.00 ZAR | In stock |

## Images

- Shelly 120A Clamp Split Core Current Transformer ONLY Compatible With Shelly EM

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> Source: [Guards On Duty Shop & Security Guards ](https://guardsondutyshop.co.za/products/shelly-shelly-120a-clamp)
> Updated: 2026-07-07