Buy Siemens 4NC5121-2FA21 4NC51212FA21 Single phase current transformer Primary current 150 A Secondary current 5 A Screw-fi

A blue current transformer with a rectangular opening in the centre, screw mounting, and metal clamp at the bottom. Used for current measurement.

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A technical drawing of a front view and side view of a rectangular hardware slot with detailed dimensional specifications.

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Datasheet (PDF)

Dispatches on Wed, 16 Sep

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Technical specifications

Protection class: IP20
Ambient temperature: -30 °C to +55 °C
Operating frequency: 50/60 Hz

Product type: Single phase current transformer

Fitting type: Screw-fit

Primary current: 150 A

Secondary current: 5 A

: 1 VA

Accuracy class: 0.2S

Type: 4NC5121-2FA21

Dim: (L x W x H) 55 x 60 x 75 mm

Weight: 332 g

Width: 60 mm

Height: 75 mm

Length: 55 mm

: Attachable current transformer

: 0.2

: 19 mm

: 1

: 150 A

: 1 VA

: 5 A

: FS 10

: TRUE

UKCA: yes

Variants(All information is without VAT, plus shipping costs)

Primary current

Power

Secondary current

Siemens 4NC5121-2FA21 4NC51212FA21 Single phase current transformer Primary current 150 A Secondary current 5 A Screw-fit 1 pc(s)

Item no:1700800

This article

150 A

1 VA

5 A

Siemens 4NC5121-2DC21 4NC51212DC21 Single phase current transformer Primary current 150 A Secondary current 5 A Line feed-through diameter:19 mm Screw-fit 1 pc(s)

Item no:1700799

150 A

2.5 VA

5 A

Siemens 4NC5122-0CE21 Single phase current transformer Primary current 200 A Secondary current 1 A Line feed-through diameter:19 mm Screw-fit 1 pc(s)

Item no:1700801

200 A

5 VA

1 A

Siemens 4NC5123-0CE21 4NC51230CE21 Single phase current transformer Primary current 250 A Secondary current 1 A Line feed-through diameter:19 mm Screw-fit 1 pc(s)

Item no:1700802

250 A

5 VA

1 A

Siemens 4NC5123-2DE21 4NC51232DE21 Single phase current transformer Primary current 250 A Secondary current 5 A Line feed-through diameter:19 mm Screw-fit 1 pc(s)

Item no:1706513

250 A

5 VA

5 A

Siemens 4NC5112-0CB21 4NC51120CB21 Single phase current transformer Primary current 50 A Secondary current 1 A Line feed-through diameter:19 mm Screw-fit 1 pc(s)

Item no:1728566

50 A

1.2 VA

1 A

Siemens 4NC5113-2CB21 4NC51132CB21 Single phase current transformer Primary current 60 A Secondary current 5 A Line feed-through diameter:19 mm Screw-fit 1 pc(s)

Item no:1728567

60 A

1.2 VA

5 A

Siemens 4NC5115-0CC21 4NC51150CC21 Single phase current transformer Primary current 75 A Secondary current 1 A Line feed-through diameter:19 mm Screw-fit 1 pc(s)

Item no:1728568

75 A

2.5 VA

1 A

Siemens 4NC5115-2CC21 4NC51152CC21 Single phase current transformer Primary current 75 A Secondary current 5 A Line feed-through diameter:19 mm Screw-fit 1 pc(s)

Item no:1728686

75 A

2.5 VA

5 A

Siemens 4NC5117-0CC21 4NC51170CC21 Single phase current transformer Primary current 100 A Secondary current 1 A Line feed-through diameter:19 mm Screw-fit 1 pc(s)

Item no:1728687

100 A

2.5 VA

1 A

Documents & Downloads

Datasheet

Datasheet 1700800 Siemens 4NC5121-2FA21 4NC51212FA21 Single phase current transformer Primary current 150 A Secondary current 5 A Screw-fi

User & Safety Instructions

User & Safety Instructions 1700800 Siemens 4NC5121-2FA21 4NC51212FA21 Single phase current transformer Primary current 150 A Secondary current 5 A Screw-fi

Description

current transformer 150/1 A 2.5 VA CL 0.5 4NC bushing type current transformer The bushing-type current transformers are used for primary rated currents of 40 A to 3000 A, secondary rated currents of 5 A or 1 A and in the categories 0.2S, 0.5 and 1. They are also suitable for measurement functions with PAC and AI Energy Meter thanks to better accuracy, and are employed in the mechanical engineering sector most commonly for new systems with mid-range power ratings and in plant construction. www.siemens.com/switching-devices. Siemens offers a comprehensive portfolio of protection, switching, measuring and monitoring devices, distribution systems as well as switches and sockets for safe and efficient electrical infrastructure in buildings and industry.