Residual Current Circuit Breakers FI, NFI, RFI2

Residual current circuit breakers – FI, NFI

With a residual current circuit breaker (RCCB) the following protective measures are available: fault protection, protection against fire and additional protection in case of direct contact.



Features

Isolating function

Simple and solid assembly to a 35 mm wide mounting rail according
to EN 60715, optional operating position

Additional colour display of the position of main contacts
(red – contacts closed, green – contacts open)

A terminal shape prevents connection of a conductor outside the connection area

Types

RCCBs are manufactured in two versions in compliance with the EN 61008 standard.

Type A (designated NFI) – sensitive to alternating and pulsating dc residual operating currents.

Type AC (designated FI) – sensitive only to alternating residual operating currents of a sine wave form.

Special versions

Type S: A switch with a delayed break enabling selectivity regarding a general type and a short-time delayed type (type G) connected on the load side.

Type G: a short-time delayed breaking characteristic (a min. non-actuating period is 10 ms).

FIR-FIT combination: It is used for a protection in circuits where operational currents are higher than rated currents of residual current circuit breakers.

Residual current circuit breakers with overcurrent protection – RFI2



RFI2 is a combination of a residual current circuit breaker and a miniature circuit breaker. With RFI2 the following protective measures are available: fault protection, protection against fire and additional protection in case of direct contact.

Features

A built-in protection against overload and short-circuit

Tripping characteristics B in C according to EN 61009

Sensitive to alternating and pulsating dc residual currents  – type A

Possibility of sealing in ON or OFF position

Simple and solid assembly to a 35 mm wide mounting rail according to EN 60715, optional operating position

Additional colour display of the position of main contacts (red – contacts closed, green – contacts open)

Documentation

Data sheets:
Catalogue pages
Catalogue pages (in Italian language)
Catalogue pages (in Spanish language)
Catalogue pages (in Russian language)
Catalogue pages (in Serbian language)

Certificates:  
NFI EC Declaration of Conformity
FI EC Declaration of Conformity
VDE FI Marks Approval
VDE NFI Marks Approval
VDE RFI2 Marks Approval
Fire certificate (in Russian language)
NF certificate for NFI, FI
GOST-R Certificate (in Russian language)

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