Product Description

Siemens 5SV3346-6RC RCCB – 63A, 4-Pole, 30mA, Type A, 415V

The Siemens 5SV3346-6RC is a SENTRON 5SV3 Residual Current Operated Circuit Breaker (RCCB) designed for residual-current protection in suitable three-phase AC electrical installations. It is a 4-pole / 3+N, Type A RCCB with a 63 A rated current and 30 mA rated residual operating current. Siemens' current product data identifies the corresponding 5SV3346-6 as an instantaneous 4-pole Type A RCCB, In 63 A, residual current 30 mA and Un AC 400 V.

The supplied India product designation specifies 415 V and 4MW, making this model suitable for compatible three-phase-plus-neutral distribution boards and electrical protection applications.

Siemens 5SV3346-6RC Residual Current Circuit Breaker

The 5SV3346-6RC belongs to the Siemens SENTRON 5SV3 RCCB family. Its primary function is to detect residual current in the protected circuit and disconnect the supply when the residual current reaches the specified operating threshold.

The 4-pole / 3+N configuration is intended for three-phase systems with neutral. This makes the device suitable for compatible industrial, commercial and building electrical distribution systems.

Siemens currently lists the corresponding 5SV3346-6 as an active product in the SENTRON RCCB family.

63 A Rated Current

The RCCB has a rated current of 63 A.

This makes it suitable for compatible three-phase distribution circuits and feeders where a 63 A residual-current protection device is required.

The protected circuit should always be designed so that the RCCB operates within its specified electrical ratings and installation conditions.

30 mA Residual Current Sensitivity

The 5SV3346-6RC has a rated residual operating current of 30 mA. Siemens' technical data confirms the 30 mA tripping fault current for the corresponding article.

When the residual current reaches the specified operating threshold, the RCCB trips and disconnects the protected circuit.

A 30 mA residual-current sensitivity is used where the electrical protection design requires this level of protection. The exact selection must be based on the complete installation design and applicable regulations.

Type A Residual Current Protection

The device is a Type A RCCB.

Type A residual-current protection is suitable for residual currents containing AC components and pulsating DC components, making it more suitable than Type AC devices for many modern electronic loads.

This characteristic can be relevant in electrical systems containing equipment such as:

• Electronic power supplies

• Rectifier circuits

• Variable-speed drives

• Power converters

• Automation equipment

• Modern industrial machinery

The appropriate RCCB type should always be selected according to the residual-current characteristics of the connected equipment.

4-Pole / 3+N Configuration

The 5SV3346-6RC has 4 poles, suitable for three-phase plus neutral systems.

This arrangement allows the three phase conductors and neutral to be included in the residual-current protection arrangement.

Typical applications include:

• Three-phase distribution boards

• PCC panels

• MCC panels

• Industrial feeder circuits

• Commercial electrical panels

• Sub-distribution boards

• Factory electrical systems

• Machine supply circuits

415 V India Application

The supplied India product description identifies this RCCB for 415 V AC applications.

Siemens' current technical data for the corresponding 5SV3346-6 specifies 400 V AC rated supply voltage.

For the SB Smart listing, the 415 V India-market designation can be retained, while actual installation selection should be checked against the Siemens technical rating and the electrical system design.

Instantaneous Operation

The 5SV3346-6RC is an instantaneous RCCB. Siemens specifies that the switching function is not short-time delayed.

This means the device responds without an intentionally introduced short-time delay when the specified residual-current threshold is reached.

10 kA Short-Circuit Current Rating

The corresponding Siemens 5SV3346-6 is specified with a 10 kA short-circuit current rating. Siemens also specifies a maximum permissible series-fuse rating of 100 A for this article.

The RCCB should nevertheless be coordinated with suitable upstream overcurrent protection and the prospective short-circuit conditions of the installation.

An RCCB primarily provides residual-current protection and should not be treated as a substitute for an MCB or MCCB for overload and short-circuit protection unless the complete protection arrangement specifically provides those functions.

4-Module Design

The India product description specifies 4MW, meaning 4 module width.

The 4MW designation refers to the physical modular width and does not mean a 4 MW power rating.

The Siemens 5SV3 4-pole format is designed for standard modular electrical distribution installations.

DIN Modular Installation

The corresponding 5SV3346-6 is classified as size 1 according to DIN 43880 and uses 60 mm grid spacing.

This supports installation in conventional modular distribution boards and electrical panels.

The RCCB can be combined with compatible MCBs, busbars and supplementary protection accessories according to the panel design.

IP20 Protection

Siemens specifies IP20 protection when the device is installed in a suitable distribution board with connected conductors.

The RCCB should therefore be installed within an appropriate electrical enclosure or distribution assembly.

Residual Current Protection

Residual current occurs when part of the electrical current flows through an unintended path, such as an earth-leakage path.

The RCCB monitors the current balance and disconnects the protected circuit when the residual current reaches the configured 30 mA operating threshold.

This provides an additional layer of electrical protection within the overall installation.

Three-Phase Distribution Applications

The 5SV3346-6RC can be considered for compatible:

• Industrial distribution boards

• Commercial electrical panels

• Three-phase feeder circuits

• PCC and MCC panels

• Factory electrical systems

• Building distribution systems

• Machine supply circuits

• Sub-distribution boards

Applications with Electronic Loads

The Type A characteristic makes this RCCB particularly relevant to installations where leakage currents can contain pulsating DC components.

Potential applications include systems containing:

• Variable-speed equipment

• Electronic control systems

• Rectifier-based equipment

• Industrial automation equipment

• Switching power supplies

• Modern machinery

The actual suitability should be verified against the equipment manufacturer's leakage-current characteristics.

Maintenance and Testing

RCCBs should be included in the electrical installation's regular inspection and testing program.

The test function should be operated according to the manufacturer's instructions and applicable electrical-maintenance requirements to verify correct residual-current tripping.

Regular testing helps confirm that the protective mechanism remains operational.

Installation Considerations

Before selecting the 5SV3346-6RC, verify:

• Rated current: 63 A

• Residual-current sensitivity: 30 mA

• RCCB type: Type A

• Pole configuration: 4-pole / 3+N

• System voltage compatibility

• Upstream overcurrent protection

• Available panel space: 4 module width

• Conductor size and termination

• Connected equipment leakage-current characteristics

• Applicable national electrical regulations

Difference from Type AC 63 A, 30 mA Version

The 5SV4346-0RC is a 63 A, 4-pole, Type AC, 30 mA RCCB, whereas the 5SV3346-6RC is a 63 A, 4-pole, Type A, 30 mA RCCB.

Therefore:

5SV3346-6RC → Type A, 63 A, 30 mA

5SV4346-0RC → Type AC, 63 A, 30 mA

The main difference is the residual-current type.

Type A is intended for applications where residual-current waveforms may include pulsating DC components, whereas Type AC is intended for compatible sinusoidal AC residual currents.

Difference from Type A 300 mA Version

The 5SV3646-6RC is a 63 A, 4-pole, Type A, 300 mA RCCB.

Therefore:

5SV3346-6RC → 63 A, 30 mA, Type A

5SV3646-6RC → 63 A, 300 mA, Type A

The difference is the residual-current operating threshold.

Difference from Type B Version

Siemens also provides Type B RCCBs for applications requiring broader residual-current detection.

The 5SV3346-6RC is specifically a Type A instantaneous RCCB, so it should not be substituted with another RCCB type without verifying the protection requirements of the connected equipment.

Difference from Selective Type A Version

A selective Type A RCCB is designed with intentional time grading for coordination with downstream or upstream residual-current protection.

The 5SV3346-6RC is instantaneous, so it does not provide that intentional short-time delay.

Difference from 40 A Version

A corresponding Type A RCCB with a lower current rating should be selected when the protected circuit requires less than 63 A.

The 5SV3346-6RC is specifically selected where the required rated current is 63 A.

Difference from 80 A Version

Higher-current variants are available in the 5SV3 family.

The 5SV3346-6RC should be selected specifically for circuits requiring a 63 A Type A, 30 mA, 4-pole RCCB.

Suitable for Electrical Panel Builders and Industrial Buyers

The Siemens 5SV3346-6RC is relevant for:

• Electrical panel builders

• Industrial buyers

• Electrical contractors

• Commercial electrical contractors

• Facility-maintenance teams

• OEMs

• Machine builders

• Electrical distributors

• Factory maintenance departments

• Electrical product dealers

For SB Smart, the product is positioned as a Siemens SENTRON 5SV3 Type A RCCB for 63 A three-phase residual-current protection.

Technical Specification

These specifications are based on Siemens' current data for 5SV3346-6, together with the supplied India designation.

Key Features

• Siemens SENTRON 5SV3 RCCB

• Article number 5SV3346-6RC

• 63 A rated current

• 4-pole / 3+N configuration

• 30 mA residual-current sensitivity

• Type A

• Instantaneous operation

• 400 V AC technical rating for the corresponding Siemens article

• 415 V India-market designation

• 4-module installation format

• 10 kA short-circuit current rating

• 2,000 V rated insulation voltage

• 60 mm grid spacing

• DIN modular installation

• Suitable for three-phase plus neutral residual-current protection

• Suitable for installations with compatible electronic loads

Benefits

• Type A protection: Suitable where residual currents may include pulsating DC components.

• 63 A rating: Suitable for compatible higher-current three-phase circuits.

• 30 mA sensitivity: Provides residual-current protection at the specified operating threshold.

• 4-pole / 3+N design: Suitable for three-phase plus neutral systems.

• Instantaneous operation: Provides residual-current disconnection without intentional short-time delay.

• 4-module format: Supports standard modular electrical-panel installation.

• 10 kA short-circuit rating: Supports coordination with suitable upstream protective equipment.

• DIN modular design: Allows convenient integration into standard electrical distribution assemblies.

• Siemens SENTRON 5SV3 platform: Provides a standardized Type A residual-current protection solution.

Why Choose Siemens 5SV3346-6RC?

The Siemens 5SV3346-6RC is a 63 A, 4-pole / 3+N, Type A RCCB with 30 mA residual-current sensitivity, designed for suitable three-phase electrical installations. Siemens' current product data identifies the corresponding 5SV3346-6 as an active, instantaneous 4-pole Type A RCCB with 63 A rated current, 30 mA residual current and 400 V AC rated voltage.

Its Type A characteristic makes it a suitable choice for compatible installations where residual-current waveforms can include pulsating DC components.

For SB Smart, this product is best presented as a Siemens SENTRON 5SV3 Type A residual-current circuit breaker for 63 A three-phase electrical protection across India.

Delivery Across India

SB Smart supplies Siemens SENTRON/Betagard RCCBs and industrial electrical protection products across Faridabad, Gurgaon/Gurugram, Delhi NCR, Haryana, Noida, Punjab, Mumbai and other major Indian cities.

Major delivery locations include:

• Faridabad

• Delhi

• Gurgaon/Gurugram

• Delhi NCR

• Noida

• Greater Noida

• Haryana

• Punjab

• Mumbai

• Pune

• Ahmedabad

• Bengaluru

• Hyderabad

• Chennai

• Kolkata

• Jaipur

• Chandigarh

• Lucknow

• Indore

• Surat

• Vadodara

• Nagpur

• Coimbatore

• And other major cities across India

Frequently Asked Questions

1. What is Siemens 5SV3346-6RC?

The 5SV3346-6RC is a Siemens SENTRON 5SV3 residual-current operated circuit breaker rated at 63 A, with 4 poles / 3+N, 30 mA residual-current sensitivity and Type A characteristics.

2. How many poles does it have?

It has 4 poles, suitable for three-phase plus neutral applications.

3. What is the rated current?

The rated current is 63 A.

4. What is the residual-current sensitivity?

The rated residual operating current is 30 mA.

5. What type of RCCB is it?

It is a Type A RCCB, suitable for compatible AC residual currents and pulsating DC residual-current components.

6. Is it instantaneous?

Yes. Siemens identifies the corresponding 5SV3346-6 as instantaneous.

7. What is the voltage rating?

Siemens' current technical data specifies 400 V AC for the corresponding 5SV3346-6 article, while the India-facing designation uses 415 V.

8. What does 4MW mean?

4MW means 4 module width in the modular installation format. It does not mean a 4 MW power rating.

9. What is the short-circuit current rating?

The specified short-circuit current rating is 10 kA.

10. What is the difference between 5SV3346-6RC and 5SV4346-0RC?

5SV3346-6RC: 63 A, 4-pole, Type A, 30 mA.

5SV4346-0RC: 63 A, 4-pole, Type AC, 30 mA.

11. What is the difference between 5SV3346-6RC and 5SV3646-6RC?

5SV3346-6RC: 63 A, 4-pole, Type A, 30 mA.

5SV3646-6RC: 63 A, 4-pole, Type A, 300 mA.

12. Where can I buy Siemens 5SV3346-6RC in India?

SB Smart supplies Siemens SENTRON 5SV3 Type A RCCBs and industrial electrical protection products in India for panel builders, electrical contractors, industrial buyers, maintenance teams and distribution applications.