Eaton xEffect FRCmM 40-80 A Type B Residual Current Devices

Catalog and Technical Data

Introduction to Residual Current Devices (RCDs)

This document provides detailed information on Eaton's xEffect FRCmM 40-80 A Type B Residual Current Devices (RCCBs), designed for industrial switchgear applications requiring high levels of safety and reliability.

General Data: RCD Types

Understanding different RCD types is crucial for selecting the appropriate device for specific applications. The following table summarizes the most important RCD types:

Symbol	Description
[Temperature: -25°C]	Eaton standard. Suitable for outdoor installation (distribution boxes for outdoor installation and building sites) up to -25° C.
[Surge-proof: >250 A, 8/20 µs]	Conditionally surge-current proof (>250 A, 8/20 µs) for general application.
[AC Current Symbol]	Type AC: AC current sensitive RCCB
[AC/Pulsating DC Symbol]	Type A: AC and pulsating DC current sensitive RCCB, not affected by smooth DC fault currents up to 6 mA
[Frequency/Delayed Symbol]	Type F: AC and pulsating DC current sensitive RCCB, trips also at frequency mixtures (10 Hz, 50 Hz, 1000 Hz), min. 10 ms time-delayed, min. 3 kA surge current proof, higher load capacity with smooth DC fault currents up to 10 mA
[Frequency Range Symbol: up to 20 kHz]	Frequency range up to 20 kHz
[Frequency Mixture Symbol]	Trips also at frequency mixtures (10 Hz, 50 Hz, 1000 Hz)
[All Current Symbol]	Type B: All-current sensitive RCD switchgear for applications where DC fault currents may occur. Non-selective, non-delayed. Protection against all kinds of fault currents.
[All Current/Fire Safe Symbol]	Type B+: All-current sensitive RCD switchgear for applications where DC fault currents may occur. Non-selective, non-delayed. Protection against all kinds of fault currents. Provides enhanced fire safety.
[Type G Symbol]	RCD of type G (min 10 ms time delay) surge current-proof up to 3 kA. For system components where protection against unwanted tripping is needed to avoid personal injury and damage to property. Also for systems involving long lines with high capacitive reactance. Some versions are sensitive to pulsating DC. Some versions are available in all-current sensitive design.
[Type S Symbol]	RCD of type S (selective, min 40 ms time delay) surge current-proof up to 5 kA. Mainly used as main switch, as well as in combination with surge arresters. This is the only RCD suitable for series connection with other types if the rated tripping current of the downstream RCD does not exceed one third of the rated tripping current of the device of type S. Some versions are sensitive to pulsating DC. Some versions are available in all-current sensitive design.

RCD Type Application and Tripping Times

This section details the compatibility of different residual current types with various RCCB types and provides tripping time specifications.

Kind of Residual Current and Correct Use of RCD Types

Kind of current	Current profile	Correct use / application field of RCCB types	Tripping current
Sinusoidal AC residual current	[AC waveform]	AC: ✔️, A: ✔️, F: ✔️, B: ✔️, B+: ✔️	0.5 to 1.0 I_Δn
Pulsating DC residual current (positive or negative half-wave)	[Pulsating DC waveform]	AC: ❌, A: ✔️, F: ✔️, B: ✔️, B+: ✔️	0.35 to 1.4 I_Δn
Cut half-wave current	[Cut half-wave waveform]	AC: ❌, A: ✔️, F: ✔️, B: ✔️, B+: ✔️	Lead angle 90°: 0.25 to 1.4 I_Δn Lead angle 135°: 0.11 to 1.4 I_Δn
Half-wave with smooth DC current of 6 mA	[Half-wave with smooth DC waveform]	AC: ❌, A: ✔️, F: ✔️, B: ✔️, B+: ✔️	max. 1.4 I_Δn + 6 mA
Half-wave with smooth DC current of 10 mA	[Half-wave with smooth DC waveform]	AC: ❌, A: ✔️, F: ✔️, B: ✔️, B+: ✔️	max. 1.4 I_Δn + 10 mA
Smooth DC current	[Smooth DC waveform]	AC: ❌, A: ❌, F: ❌, B: ✔️, B+: ✔️	0.5 to 2.0 I_Δn

Break Time and Non-Actuating Time for Alternating Residual Currents (r.m.s. values) for Type AC and A RCCB

Classification	I_Δn mA	Tripping Current Multiplier
Classification	I_Δn mA	I_Δn	2xI_Δn	5xI_Δn	5 x I_Δn or 0.25A	500A
Standard RCD Conditionally surge current-proof 250 A	<30	Max. tripping time (s): 0.3	0.15	0.04	0.04	0.04
Standard RCD Conditionally surge current-proof 250 A	>30	Max. tripping time (s): 0.3	0.15	0.04	0.04	0.04
RCCB Type G (Short-time-delay) Surge current-proof 3 kA	30	Min. non actuating time(s): 0.01 Max. tripping time (s): 0.3	0.01 0.15	0.01 0.04	0.01 0.04	0.01 0.04
RCCB Type G (Short-time-delay) Surge current-proof 3 kA	>30	Min. non actuating time(s): 0.01 Max. tripping time (s): 0.3	0.01 0.15	0.01 0.04	0.01 0.04	0.01 0.04
RCCB Type S (Selective) Surge current-proof 5 kA	>30	Min. non actuating time(s): 0.13 Max. tripping time (s): 0.5	0.06 0.2	0.05 0.15	0.04 0.15	0.04 0.15

Break Time for Half-Wave Pulsating Residual Currents (r.m.s. values) for Type A RCCB

Classification	I_Δn mA	Tripping Current Multiplier
Classification	I_Δn mA	1.4xI_Δn	2xI_Δn	2.8xI_Δn	4xI_Δn	7 x I_Δn	0.35 A	0.5 A	350A
Standard RCD Conditionally surge current-proof 250 A	<30	Max. tripping time (s): 0.3	0.15	0.04	0.04	0.04	0.04	0.04	0.04
Standard RCD Conditionally surge current-proof 250 A	30	Max. tripping time (s): 0.3	0.15	0.04	0.04	0.04	0.04	0.04	0.04
Standard RCD Conditionally surge current-proof 250 A	>30	Max. tripping time (s): 0.3	0.15	0.04	0.04	0.04	0.04	0.04	0.04
RCCB Type G (Short-time-delay) Surge current-proof 3 kA	30	Max. tripping time (s): 0.3	0.15	0.04	0.04	0.04	0.04	0.04	0.04
RCCB Type G (Short-time-delay) Surge current-proof 3 kA	>30	Max. tripping time (s): 0.3	0.15	0.04	0.04	0.04	0.04	0.04	0.04
RCCB Type S (Selective) Surge current-proof 5 kA	>30	Max. tripping time (s): 0.5	0.2	0.15	0.15	0.15	0.15	0.15	0.15

Tripping Characteristics (IEC/EN 61008)

This section illustrates the tripping characteristics, time ranges, and selectivity for instantaneous, surge current-proof "G", and surge current-proof selective "S" residual current devices.

Tripping Characteristics Diagram Description

The diagram plots Tripping Time (ms) on the y-axis against Residual Tripping Current I_Δn (mA) on the x-axis. It shows the operational limits for different RCD types:

Non-delayed (Instantaneous): A narrow band indicating rapid tripping.
Type G (Short-time-delay): A wider band, indicating a delayed response, suitable for systems with high capacitive reactance or where nuisance tripping must be avoided. It is surge current-proof up to 3 kA.
Type S (Selective): The widest band, indicating the longest delay, used for selectivity in series installations or with surge arresters. It is surge current-proof up to 5 kA.
Areas: The diagram also delineates areas for "surge current-proof", "conditionally surge current-proof", and "area of unwanted tripping".

The diagram includes reference lines for specific tripping currents (I_Δn1, I_Δn2, I_Δn3) and their multiples (e.g., 2xI_Δn, 5xI_Δn).

IEC 60364-4-41 and Additional Protection: This standard recognizes the use of RCDs with a rated residual operating current not exceeding 30 mA as additional protection against electric shock in AC systems, especially when basic or fault protection provisions fail, or due to user carelessness. For fault current/residual current protection, two RCDs must be connected in series.

Testing: RCDs with tripping time delay (Types -G and -S) can be function-tested using conventional equipment. The testing device must be set according to its operating instructions. Due to inherent measuring process limitations, the tripping time measured may differ slightly from manufacturer specifications. A result within the manufacturer's specified time range indicates the device is functioning correctly.

Applications with Frequency Converters

Frequency converters are widely used in systems requiring variable speed, such as lifts, escalators, and conveyor belts. Their use with conventional residual current devices can lead to frequent unwanted tripping.

Technical Cause: Fast switching operations in frequency converters generate high interference levels that propagate through lines and as radiation. Anti-interference capacitors in filters connected between the RCD and the frequency converter (or on the output side) can produce discharge currents against earth, causing apparent residual currents that trigger the RCD.

Frequency Converter Setup Diagram Description

The diagram illustrates a typical setup where a Residual Current Device (RCD) is connected to the mains supply via a mains-side filter. A frequency converter is then connected to the filter. The output of the frequency converter is connected to a motor, often via a screened motor line and potentially another filter. The diagram highlights the "Frequency converter interference range (approx. 100 - 300 Hz)".

Recommended Solution: Type F RCCBs

The tripping characteristic diagram for a 100 mA and 300 mA RCD shows that while RCDs trip correctly around 50 Hz, unwanted tripping occurs frequently between approximately 100 Hz and 300 Hz due to frequency converters. Type F RCCBs are specifically designed to reliably sense higher frequency residual currents, significantly increasing system reliability and availability.

These special residual current devices are identified by the "-F" suffix in their type designation and meet compatibility requirements with frequency converters to prevent unwanted tripping. Eaton offers a comprehensive range of Type F RCCBs.

Characteristics of Type "-F" RCDs:

Improved capabilities for reliably sensing residual currents up to 1 kHz.
Improved capabilities for withstanding 10 mA DC offset.
10 ms short time delay minimum (G/F).
Surge current proofness of 3 kA (G/F) and 5 kA (S/F).

FRCmM 40-80 A Type B (non-digital) - Product Description

Eaton's FRCmM 40-80 A Type B Residual Current Devices are designed for special applications requiring the highest safety standards.

[Image of an Eaton FRCmM Type B Residual Current Device]

Key Features:

Comprehensive range of RCCBs with ratings up to 80A.
Higher tripping currents available for special applications.
All current sensitive Type B RCCBs meet the highest safety standards.
Line voltage independent 2 and 4 pole RCCBs suitable for fault protection, additional protection, and fire protection.
As stated in IEC/EN 62423, the B sensitivity relies on line voltage.

Product Range and Article Numbers

This section lists the available models for Type B and Type S/B FRCmM devices.

Type B: Conditionally Surge Current-Proof 250 A

I_Δn (A)	Type Designation	Article No.	Units per package
4-poles
40/0.1	FRCMM-40/4/01-B	187804	1/30
63/0.1	FRCMM-63/4/01-B	187805	1/30
63/0.5	FRCMM-63/4/05-B	303861	1/30
80/0.03	FRCMM-80/4/003-B	187806	1/30
80/0.1	FRCMM-80/4/01-B	187807	1/30
80/0.3	FRCMM-80/4/03-B	187808	1/30
80/0.5	FRCMM-80/4/05-B	303862	1/30

Type S/B: Selective + Surge Current-Proof 5 kA, All-Current Sensitive

I_Δn (A)	Type Designation	Article No.	Units per package
4-poles
80/0,3	FRCMM-80/4/03-S/B	187809	1/30

Technical Data and Specifications

Detailed technical specifications for the FRCmM Type B Residual Current Devices.

Specifications | Residual Current Devices FRCmM, Type B

Design

All current sensitive Residual Current Circuit Breakers (RCCBs) for special applications.
Twin-purpose terminal (lift/open-mouthed) above and below.
Contact position indicator (red - green).
The device functions irrespective of the position of installation.
Type B: These types offer the highest safety levels in electrical systems due to their all-current sensitivity and best-in-class reliability and system availability.

Accessories

Auxiliary contact Z-HD to be mounted onto the device.
Auxiliary switch for subsequent installation to the left (Z-HD, Article No. 265620).

Additional Information for the Application

Tripping is line voltage independent (VI) and therefore suitable for all BA-classes.
The RCD is suitable for fault protection, additional protection, and fire protection within the regulations of applicable wiring regulations (e.g., IEC/EN 60364).
As stated in IEC/EN 62423, the B sensitivity relies on line voltage.

Test Button

The test button "T" must be pressed once every 6 months. The system operator must be informed of this obligation and their responsibility in a way that can be proven.

Under special conditions (e.g., damp/dusty environments, polluting/corroding conditions, large temperature fluctuations, risk of overvoltage due to switching equipment/atmospheric discharges, portable equipment), testing monthly is recommended. Regulations according to IEC/EN 60364 or wiring regulations still apply.

The test button "T" tests the function of the RCCB itself. It does not measure a "suitable" fault loop or if requirements of such are kept. Testing your fault loop (earth rod resistance, continuity of fault loop, etc.) requires separate special tests.

Electrical Technical Data

Parameter	Specification
Design according to	FRCmM, Type B IEC/EN 61008, IEC/EN 62423
Current test marks as printed onto the device
Tripping	Type B: short-time delayed Type S/B: 50 ms delay - with selective disconnecting function
Rated voltage (U_n)	230/400 V; 50 Hz
Limits operation voltage test circuit	250 - 440 V~ (30 mA) 185 - 440 V~ (100, 300, 500 mA)
Rated tripping current (I_Δn)	30, 100, 300, 500 mA
Sensitivity	All types of current
Rated insulation voltage (U_i)	400 V
Rated impulse withstand voltage (U_imp)	2.5 kV
Rated short circuit capacity (I_cn)	10 kA with back-up fuse
Peak withstand current	Type B: 3 kA (8/20µs), surge current-proof, 10 ms delay Type S/B: 5 kA (8/20µs), surge current-proof, 40 ms delay
Maximum back-up fuse	Short circuit protection: I_n = 40 A: 100 A gG/gL I_n = 63 A: 100 A gG/gL I_n = 80 A: 100 A gG/gL Overload protection: I_n = 40 A: 40 A gG/gL I_n = 63 A: 63 A gG/gL I_n = 80 A: 80 A gG/gL
Rated breaking capacity or rated fault breaking capacity (I_m, I_Δm)	I_n = 40 A: 500 A I_n = 63 A: 630 A I_n = 80 A: 800 A
Endurance	electrical components: ≥ 4,000 operating cycles mechanical components: ≥ 10,000 operating cycles

Mechanical Technical Data

Parameter	Specification
Frame size	45 mm
Device height	80 mm
Device width	70 mm (4MU)
Mounting	quick fastening with DIN rail EN50022
Degree of protection, built-in	IP40
Upper and lower terminals	open mouthed/lift terminals
Terminal protection	finger and hand touch safe, DGUV VS3, EN 50274
Terminal capacity	1.5 - 50 mm²
Busbar thickness	0.8 - 2 mm
Operation temperature	-25°C to +40°C
Storage- and transport temperature	-25°C to +60°C
Resistance to climatic conditions	25-55°C/90-95% relative humidity acc. to IEC 60068-2
Mounting position	any

Connection Diagram

4-poles: [Diagram showing a 4-pole connection with terminals labeled 1, 3, 5, N and 2, 4, 6, N, and symbols for RCD and protection]

Dimensions (mm)

[Diagram showing dimensions: 4P, 72mm width, 85mm height, 45mm depth, 30mm terminal height, 62mm base width, 9.5mm side clearance]

Power Loss at I_n FRCmM - Type B (entire unit)

I_n [A]	P [W]
4-poles
40	1.3
63	3.1
80	5.0

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Contact Information

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