Product Description

Siemens 5SU1654-7RC32 RCBO – 32A, 2-Pole, Type A, 300mA, C-Curve, 240V

The Siemens 5SU1654-7RC32 is a Betagard / SENTRON 5SU1 Residual Current Circuit Breaker with Overcurrent Protection (RCBO) designed to provide both overcurrent protection and residual-current protection in a single device. It is rated at 32 A, has a 2-pole / 1+N configuration, 2-module width, C tripping characteristic, and Type A residual-current protection with 300 mA sensitivity. Siemens' Indian product listings identify the article as 5SU16547RC32, with a 240 V AC rating, while Siemens' product family data identifies the 5SU1 RCBO range as 10 kA devices.

Siemens 5SU1654-7RC32 RCBO

The 5SU1654-7RC32 belongs to the Siemens Betagard / SENTRON 5SU1 RCBO family. An RCBO combines the functions of a miniature circuit breaker and a residual-current protective device in one compact unit.

This means the device can provide protection against:

• Overload current

• Short-circuit current

• Residual or earth-leakage current

The integrated design can reduce panel space and simplify protection arrangements compared with using separate MCB and RCCB devices.

Indian Siemens product documentation identifies the 5SU16547RC32 as a 32 A, 2-pole, 2-module, C-characteristic, Type A, 300 mA RCBO.

32 A Rated Current

The 5SU1654-7RC32 has a rated current of 32 A.

This makes it suitable for compatible single-phase circuits where the protective device needs to carry a nominal current of 32 A.

The final selection should consider the connected load, conductor size, installation method, ambient temperature and applicable electrical regulations.

C Tripping Characteristic

This RCBO uses a C tripping characteristic.

The C-curve is designed for circuits where normal operation can involve higher short-duration inrush currents than typical resistive loads.

It can therefore be suitable for compatible applications involving loads such as:

• Small motors

• Pumps

• Control transformers

• Lighting circuits with starting current

• Solenoid loads

• Equipment with moderate inrush current

The actual tripping characteristic should be selected according to the connected load and protection coordination requirements.

Type A Residual Current Protection

The device provides Type A residual-current protection.

Type A RCCBs and RCBOs are designed to detect suitable AC residual currents as well as pulsating DC residual-current components. This makes Type A protection useful for many modern electrical and electronic loads. Indian Siemens product documentation specifically identifies this model as Type A.

Potential applications include:

• Electronic power supplies

• Rectifier-based equipment

• Automation equipment

• Modern appliances

• Industrial control equipment

• Variable-speed equipment

The correct residual-current type should always be selected according to the equipment and installation.

300 mA Residual Current Sensitivity

The 5SU1654-7RC32 has a rated residual operating current of 300 mA.

When the residual-current level reaches the specified operating threshold, the residual-current protection function operates and disconnects the protected circuit.

The 300 mA sensitivity is different from the lower 30 mA level used in applications requiring a different protection approach. Selection should be based on the complete electrical protection design.

Indian product data confirms the 300 mA residual-current rating for the exact 5SU16547RC32 article.

Combined Overcurrent and Residual-Current Protection

One of the key advantages of the 5SU1654-7RC32 is that it combines two protective functions in one device:

Overcurrent protection + residual-current protection = RCBO

The overcurrent section protects against:

• Overload

• Short circuit

The residual-current section protects against:

• Earth leakage

• Residual current conditions

This integrated arrangement can simplify panel design and reduce the number of separate protection devices required.

2-Pole / 1+N Configuration

The device is a 2-pole RCBO, suitable for 1+N single-phase applications.

This configuration is intended for systems in which phase and neutral are incorporated into the protective arrangement.

Typical applications include:

• Single-phase distribution boards

• Commercial panels

• Residential electrical systems

• Office circuits

• Small industrial equipment

• Machine auxiliary supplies

• Building electrical installations

240 V AC Application

The India product specification identifies the 5SU16547RC32 as a 240 V AC RCBO. Indian Siemens product listings also specify 240 V AC for this 2-pole, 2-module series.

The product is therefore suitable for compatible single-phase AC distribution applications where the system voltage and protection requirements match the device rating.

10 kA Short-Circuit Rating

The Siemens 5SU1 RCBO range is specified as a 10 kA class of RCBO products. Indian technical/product documentation identifies the 5SU16547RC32 within this 10 kA family.

Short-circuit protection should nevertheless be coordinated with the installation's prospective fault current and upstream protective arrangement.

2-Module Compact Design

The India product description specifies the device as a 2-module RCBO.

The compact 2-module width makes it suitable for modular distribution boards and electrical panels where available DIN-rail space is important.

The 2-module format can help reduce panel space compared with some separate MCB + RCCB arrangements.

DIN-Rail Installation

The 5SU1 RCBO family is designed for modular electrical distribution assemblies.

The compact construction is suitable for integration into:

• DIN-rail distribution boards

• Consumer units

• Commercial panels

• Control panels

• Sub-distribution boards

• Industrial electrical enclosures

This makes the device convenient for panel builders and electrical contractors working with modular protection systems.

Protection Against Overload

The overcurrent protection function of the RCBO provides protection against excessive current caused by an overloaded circuit.

An overloaded circuit can occur when connected equipment draws more current than the circuit and protective design permits.

The RCBO's 32 A rated current and C characteristic should be matched to the cable and load according to the electrical installation design.

Protection Against Short Circuit

The RCBO also provides short-circuit protection.

A short circuit can result in a very high fault current, and the overcurrent protection section is designed to interrupt the circuit under the specified conditions.

The 10 kA short-circuit capability of the 5SU1 family should be considered together with the actual prospective short-circuit current at the installation point.

Residual-Current Protection

Residual current occurs when electrical current leaves the intended circuit path, such as through an unintended earth-leakage path.

The RCBO continuously monitors the relevant current relationship and can disconnect the circuit when the residual current reaches the specified 300 mA operating threshold.

This provides an additional protection function beyond conventional overload and short-circuit protection.

Type A and Modern Electronic Loads

The Type A characteristic makes the 5SU1654-7RC32 more suitable than a Type AC device for compatible applications where residual currents may contain pulsating DC components.

Examples can include:

• Electronic control equipment

• Rectifier circuits

• Variable-speed drives

• Switched-mode power supplies

• Automation systems

• Modern office equipment

The exact RCCB/RCBO type should always be selected according to the leakage-current waveform generated by the connected equipment.

C-Curve Applications

The C characteristic is useful for circuits with moderate inrush current.

Potential applications include:

• Small motors

• Pumps

• Fans

• Compressors

• Transformers

• Solenoids

• Industrial control equipment

The C curve is not automatically appropriate for every application; cable protection, fault level and inrush characteristics must be considered together.

Electrical Panel Applications

The 5SU1654-7RC32 can be considered for:

• Single-phase distribution boards

• Commercial electrical panels

• Industrial control panels

• Machine control circuits

• Building electrical systems

• Equipment feeders

• Office distribution systems

• Sub-distribution boards

Its combined protective functions can simplify circuit-level protection.

Industrial Applications

The RCBO can be useful in industrial environments where individual single-phase loads need protection against both overcurrent and residual current.

Possible applications include:

• Control panels

• Machine auxiliaries

• Industrial sockets

• Small pumps

• Fans

• Control transformers

• Automation equipment

• Instrumentation circuits

Commercial and Building Applications

The compact two-module design also makes the device suitable for commercial and building electrical distribution where circuit-level RCBO protection is required.

It can be used for suitable:

• Office circuits

• Commercial equipment

• Building services

• Single-phase feeders

• Service circuits

• Equipment outlets

The final selection depends on the circuit's electrical characteristics and applicable regulations.

Difference Between RCBO and RCCB

An important advantage of the 5SU1654-7RC32 is that it is an RCBO, not just an RCCB.

An RCCB provides residual-current protection but normally requires separate overcurrent protection.

An RCBO combines:

Residual-current protection + overload protection + short-circuit protection

in one device.

This can simplify panel architecture and reduce installation space.

Difference from Siemens 5SV4 RCCB

The Siemens 5SV4 products in your previous range are RCCBs. The 5SU1654-7RC32 is part of the 5SU1 RCBO family.

Therefore:

5SU1654-7RC32 → RCBO, Type A, 32 A, C curve, 300 mA

A 5SV4 RCCB does not provide the same integrated overcurrent-protection function.

Difference from 5SU16547RC25

The 5SU16547RC25 is the corresponding 25 A, 2-pole, Type A, C-characteristic, 300 mA RCBO.

Therefore:

5SU16547RC25 → 25 A

5SU16547RC32 → 32 A

The main difference is the rated current. Indian product listings show both articles within the same 300 mA Type A, C-characteristic family.

Difference from 5SU16547RC40

The 5SU16547RC40 is a 40 A, 2-pole, 2-module, C-characteristic RCBO, but Indian product listings identify it as Type AC, rather than Type A.

Therefore:

5SU16547RC32 → 32 A, Type A, 300 mA

5SU16547RC40 → 40 A, Type AC, 300 mA

This difference in residual-current type is important when selecting an exact replacement.

Difference from 30 mA Type A Version

The Siemens 5SU1 range also includes Type A, C-characteristic RCBOs with 30 mA residual-current sensitivity, such as the 5SU1354 series.

The 5SU16547RC32 is specifically the 300 mA version.

Therefore, a 30 mA variant should not be substituted for the 300 mA model without confirming the protection requirements.

Suitable for Electrical Panel Builders and Industrial Buyers

The Siemens 5SU1654-7RC32 is relevant for:

• Electrical panel builders

• Industrial buyers

• Electrical contractors

• Commercial electrical contractors

• Facility-maintenance teams

• OEMs

• Machine builders

• Electrical distributors

• Building-services contractors

• Electrical product dealers

For SB Smart, the product is positioned as a Siemens Betagard 5SU1 Type A RCBO for 32 A single-phase circuit protection.

Technical Specification

The exact Indian product literature identifies the article as 32 A, 2-pole, 2-module, Type A, 300 mA, C characteristic, 240 V AC, while the Siemens 5SU1 family is specified as a 10 kA RCBO family.

Key Features

• Siemens Betagard / SENTRON 5SU1 RCBO

• Article number 5SU1654-7RC32

• 32 A rated current

• 2-pole / 1+N

• 2-module compact design

• Type A residual-current protection

• 300 mA residual-current sensitivity

• C tripping characteristic

• 240 V AC India-market rating

• 50 Hz operating frequency

• 10 kA short-circuit rating class

• Combined overload and residual-current protection

• Suitable for modular DIN-rail electrical panels

• Suitable for compatible electronic loads and single-phase circuits

Benefits

• Combined protection: Integrates overcurrent and residual-current protection in one device.

• 32 A rating: Suitable for compatible medium-current single-phase circuits.

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

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

• C characteristic: Suitable for compatible circuits with moderate starting or inrush current.

• 2-module format: Helps optimize available space in modular distribution boards.

• 10 kA class: Provides high short-circuit protection capability within the specified installation conditions.

• DIN modular design: Supports practical installation in standard electrical panels.

• Siemens Betagard platform: Provides a recognized Siemens solution for integrated circuit protection.

Why Choose Siemens 5SU1654-7RC32?

The Siemens 5SU1654-7RC32 combines 32 A overcurrent protection, C-curve tripping and Type A 300 mA residual-current protection in a compact 2-pole, 2-module RCBO. Indian Siemens product documentation and current product listings identify the exact article as 5SU16547RC32, rated 240 V AC, making it suitable for compatible single-phase electrical circuits.

It is particularly suitable where a panel builder or electrical contractor wants to combine circuit overcurrent protection and residual-current protection without installing a separate MCB and RCCB.

For SB Smart, this product is best presented as a Siemens Betagard 5SU1 Type A RCBO for 32 A, 300 mA single-phase electrical protection across India.

Delivery Across India

SB Smart supplies Siemens Betagard, SENTRON protection devices, RCBOs and industrial electrical 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 5SU1654-7RC32?

The 5SU1654-7RC32 is a Siemens Betagard / SENTRON 5SU1 RCBO rated at 32 A, with 2 poles, 2-module width, Type A, 300 mA residual-current sensitivity and C characteristic.

2. Is this an RCBO or RCCB?

It is an RCBO. It combines residual-current protection with overcurrent protection in one device.

3. What is the rated current?

The rated current is 32 A.

4. What is the residual-current sensitivity?

The rated residual operating current is 300 mA.

5. What type of residual-current protection does it use?

It uses Type A residual-current protection, suitable for compatible AC and pulsating DC residual-current components.

6. What is the tripping characteristic?

The RCBO has a C tripping characteristic.

7. How many poles does it have?

It is a 2-pole / 1+N device suitable for compatible single-phase applications.

8. What does 2-module mean?

The device occupies approximately 2 module widths in a modular distribution-board arrangement. It does not refer to a 2 MW power rating.

9. What is the rated voltage?

The Indian product specification identifies the device as 240 V AC.

10. What is the short-circuit rating?

The 5SU1 RCBO family is specified as a 10 kA class, and the exact 5SU16547RC32 is listed within that family.

11. What is the difference between 5SU16547RC32 and 5SU16547RC25?

5SU16547RC32: 32 A, Type A, 300 mA, C characteristic.

5SU16547RC25: 25 A, Type A, 300 mA, C characteristic.

12. Where can I buy Siemens 5SU1654-7RC32 in India?

SB Smart supplies Siemens Betagard/SENTRON RCBOs and industrial electrical protection devices in India for panel builders, electrical contractors, industrial buyers, OEMs, commercial installations and maintenance requirements.