CT 120A

CT 120A

120 A current transformer for Shelly Pro 3EM

Device identification

  • Device name: CT 120A

  • Manufacturer model: CT313

Short description

CT 120A (The Device) is a split-core current transformer for the Shelly Pro 3EM energy meter.

Features

  • Snap-on, screwless mounting system

Connector to Shelly Pro 3EM

  • 2-pin MX3.0-2x1Y connector

Safety features

  • Secondary winding high voltage protection

Specifications

Type

Value

Physical

Size (HxWxD):

45x40x36 ±0.5 mm / 1.77x1.57x1.42 ±0.02 in (without the cable)

Weight:

75 ±1 g / 2.65 ±0.05 oz (with the cable)

Conductor aperture:

Ø15 mm / Ø0.6 in

Core:

Ferite

Shell material:

Plastic

Color:

White

Environmental

Ambient temperature:

-10 °C to 50 °C / 14 °F to 122 °F

Humidity:

0 % to 80 % RH

Max. altitude:

2000 m / 6562 ft

Electrical

Primary/secondary current ratio:

3000/1

Rated max. primary current:

120 A

Electrical strength:

3000 VAC, 60 sec

Installation

Legend

A

Shelly CT 120A

B

Cable tie (another one on the opposite side)

C

Primary conductor

Compliance

  • Declaration of conformity