Product Description

Siemens 5SU1654-1RC16 RCBO – 16A, 2-Pole, 300mA, Type AC, C-Characteristic

The Siemens 5SU1654-1RC16 is a SENTRON / Betagard RCBO (Residual Current Circuit Breaker with Overcurrent Protection) designed to combine residual-current protection and overcurrent protection in one compact device. The exact Siemens market-facing article is specified as 16 A, 2-pole, 2-module, C characteristic, Type AC, 300 mA, with a 240 V AC supply rating.

This RCBO is suitable for compatible single-phase electrical circuits where protection against overload, short circuit and AC residual current is required in a compact modular format.

Siemens 5SU1654-1RC16 RCBO

The 5SU1654-1RC16 belongs to the Siemens SENTRON 5SU1 RCBO family. Unlike an RCCB, which primarily provides residual-current protection, an RCBO combines multiple protective functions in a single device.

It provides:

• Overload protection

• Short-circuit protection

• Residual-current protection

This integrated approach can simplify electrical-panel design and reduce the need for separate MCB and RCCB devices.

Siemens' product-family information lists the 5SU1654-1RC16 among its 5SU1 RCBO articles.

16 A Rated Current

The 5SU1654-1RC16 has a rated current of 16 A.

This makes it suitable for compatible single-phase circuits designed around a 16 A protective device.

The final selection should consider:

• Connected load

• Cable size

• Installation method

• Ambient conditions

• Fault level

• Applicable electrical regulations

C Tripping Characteristic

The RCBO uses a C tripping characteristic.

A C-curve protective device is generally suitable for circuits where normal operation can involve moderate inrush currents.

Potential applications include:

• Small motors

• Fans

• Pumps

• Solenoids

• Control transformers

• Contactors

• Suitable lighting equipment

• Industrial auxiliary circuits

The C characteristic should always be matched to the connected load and protection-coordination requirements.

Type AC Residual Current Protection

The 5SU1654-1RC16 uses Type AC residual-current protection.

Type AC RCCB/RCBO devices are intended for compatible sinusoidal alternating residual currents. The exact residual-current waveform of the connected equipment should be evaluated before selecting the protection type.

The Siemens 5SU1654-1RC16 data identifies the product specifically as Type AC.

300 mA Residual Current Sensitivity

The rated residual operating current is 300 mA.

When the residual current reaches the applicable operating threshold, the RCBO's residual-current protection function disconnects the circuit.

The 300 mA sensitivity should be selected according to the overall electrical protection design. It should not automatically be replaced by a 30 mA device, as the two have different protection characteristics.

The exact product data confirms 300 mA residual-current sensitivity.

2-Pole / 1+N Configuration

The device has 2 poles, with 1 protected pole and neutral switching, corresponding to a 1P+N configuration.

This makes it suitable for compatible single-phase circuits in which phase and neutral are incorporated into the switching arrangement.

Typical applications include:

• Single-phase distribution boards

• Commercial panels

• Building electrical systems

• Equipment feeders

• Office circuits

• Industrial auxiliary circuits

• Control-panel supplies

240 V AC Supply

The exact Siemens 5SU1654-1RC16 data specifies a 240 V AC operating supply.

This makes the article suitable for compatible single-phase AC distribution systems within its specified installation conditions.

10 kA Short-Circuit Capability

The exact 5SU1654-1RC16 data specifies a 10 kA short-circuit breaking capacity according to EN 61009-1, with a 20 kA value according to IEC 60947-2 in the technical data.

The applicable rating should be interpreted according to the relevant standard and installation arrangement.

The prospective short-circuit current at the installation point should still be checked during system design.

Compact 2-Module Design

The product is specified as a 2-module RCBO.

The exact technical data gives a width of approximately 36 mm, corresponding to two modular units.

This compact design is useful where electrical-panel space is limited.

Typical installation locations include:

• Modular distribution boards

• Consumer units

• Commercial panels

• Control panels

• Sub-distribution boards

• Industrial electrical enclosures

DIN Modular Installation

The 5SU1 RCBO family is designed for modular electrical installations.

The 2-module form factor allows the RCBO to be integrated with compatible MCBs, busbars and other DIN-mounted components according to the panel design.

Overload Protection

The RCBO's overcurrent protection function provides protection against excessive current caused by circuit overload.

The 16 A rated current should be coordinated with the cable capacity and connected load.

This helps protect the circuit from sustained overcurrent conditions.

Short-Circuit Protection

The overcurrent section also provides short-circuit protection.

The specified 10 kA EN 61009-1 breaking capacity should be considered in relation to the prospective fault current of the installation.

The complete protection arrangement should be designed according to the relevant electrical standard.

Residual-Current Protection

Residual current occurs when a portion of current flows outside its intended circuit path, such as through an unintended leakage path to earth.

The RCBO monitors this condition and disconnects the circuit when the residual-current operating threshold is reached.

With Type AC, 300 mA residual-current protection, the device is intended for compatible AC leakage-current applications.

C-Curve Applications

The C characteristic can be useful for circuits with moderate starting or inrush current.

Potential applications include:

• Small motors

• Pumps

• Fans

• Solenoids

• Contactors

• Transformers

• Selected lighting circuits

• Control equipment

The actual application should be checked against the load's starting characteristics.

Single-Phase Electrical Applications

The 5SU1654-1RC16 can be considered for compatible:

• Commercial distribution boards

• Building electrical panels

• Equipment feeders

• Control circuits

• Office electrical installations

• Small industrial circuits

• Machine auxiliary circuits

• Single-phase equipment supplies

Difference Between RCBO and RCCB

The 5SU1654-1RC16 is an RCBO, so it combines residual-current and overcurrent protection.

In comparison:

RCCB → Residual-current protection

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

This integrated design can simplify circuit-level protection and reduce panel component count.

Difference from 5SU1654-1RC25

The 5SU1654-1RC25 is the higher-rated 25 A version with the same general 2-pole, 2-module, C characteristic, Type AC, 300 mA configuration. Siemens India lists this exact article with the same product description structure.

Therefore:

5SU1654-1RC16 → 16 A

5SU1654-1RC25 → 25 A

The main difference is rated current.

Difference from 5SU1654-1RC32

The 5SU1654-1RC32 is the 32 A version within the same general product family.

Therefore:

5SU1654-1RC16 → 16 A

5SU1654-1RC25 → 25 A

5SU1654-1RC32 → 32 A

The correct rating should be selected according to the protected circuit.

Difference from Type A Version

The 5SU1654-7RC16 is a Type A variant in the Siemens 5SU1 family, while 5SU1654-1RC16 is specifically Type AC.

Therefore:

5SU1654-1RC16 → Type AC, 16 A, 300 mA

5SU1654-7RC16 → Type A, 16 A, 300 mA

The principal difference is the residual-current type.

Difference from 30 mA Version

Siemens also offers 5SU1 RCBO variants with lower residual-current sensitivity such as 30 mA.

The 5SU1654-1RC16 is specifically the 300 mA version.

A 30 mA RCBO should therefore not be treated as an exact substitute without checking the protection requirements of the installation.

Difference from B Characteristic

The C characteristic is intended for compatible circuits with moderate inrush current.

B-characteristic RCBOs are generally selected for circuits with lower inrush characteristics.

The 5SU1654-1RC16 should be selected specifically when the protection design requires the C tripping characteristic.

Suitable for Electrical Panel Builders and Industrial Buyers

The Siemens 5SU1654-1RC16 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/SENTRON 5SU1 Type AC RCBO for 16 A single-phase circuit protection.

These specifications are based on the technical datasheet for the exact 5SU1654-1RC16 article.

Key Features

• Siemens SENTRON / Betagard 5SU1 RCBO

• Article number 5SU1654-1RC16

• 16 A rated current

• 2-pole / 1P+N

• 2-module compact design

• 36 mm device width

• Type AC residual-current protection

• 300 mA residual-current sensitivity

• C tripping characteristic

• 240 V AC supply

• 50 Hz operating frequency

• 10 kA short-circuit breaking capacity according to EN 61009-1

• Neutral conductor switching

• Power supply possible from top or bottom

• Suitable for single-phase modular circuit protection

Benefits

• Combined protection: Provides overload, short-circuit and residual-current protection in one device.

• 16 A rating: Suitable for compatible single-phase circuits.

• Type AC protection: Designed for compatible sinusoidal AC residual currents.

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

• C characteristic: Suitable for compatible loads with moderate inrush current.

• 2-module design: Helps optimize electrical-panel space.

• 36 mm width: Provides a compact modular solution.

• 10 kA breaking capacity: Supports high fault-level applications within the specified standard and installation conditions.

• Neutral switching: Provides 1P+N switching functionality.

• Top or bottom supply: Offers installation flexibility.

Why Choose Siemens 5SU1654-1RC16?

The Siemens 5SU1654-1RC16 combines 16 A overcurrent protection, C-curve tripping and Type AC 300 mA residual-current protection in a compact 2-pole, 2-module RCBO.

The exact Siemens technical data confirms 240 V AC operation, 1P+N configuration, Type AC residual-current protection, 300 mA sensitivity, C characteristic and 10 kA EN 61009-1 breaking capacity.

It is suitable for customers looking to buy or source Siemens 5SU1 RCBOs for single-phase electrical panels, distribution boards, equipment circuits and commercial or industrial applications in India.

For SB Smart, this product is best presented as a Siemens Betagard 5SU1 Type AC RCBO for 16 A, 300 mA single-phase circuit protection across India.

Delivery Across India

SB Smart supplies Siemens SENTRON/Betagard RCBOs, 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 5SU1654-1RC16?

The 5SU1654-1RC16 is a Siemens SENTRON / Betagard 5SU1 RCBO rated at 16 A, with 2 poles / 1P+N, 2-module width, C characteristic, Type AC and 300 mA residual-current sensitivity.

2. Is this an RCBO or RCCB?

It is an RCBO, meaning it combines residual-current and overcurrent protection.

3. What is the rated current?

The rated current is 16 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 AC residual-current protection.

6. What is the tripping characteristic?

It has a C tripping characteristic.

7. How many poles does it have?

It has 2 poles in a 1P+N configuration.

8. What is the module width?

It is a 2-module device with a width of approximately 36 mm.

9. What is the rated voltage?

The exact product data specifies 240 V AC.

10. What is the short-circuit breaking capacity?

The datasheet specifies 10 kA according to EN 61009-1, with 20 kA according to IEC 60947-2.

11. What is the difference between 5SU1654-1RC16 and 5SU1654-7RC16?

5SU1654-1RC16: 16 A, Type AC, 300 mA, C characteristic.

5SU1654-7RC16: 16 A, Type A, 300 mA, C characteristic.

The key difference is the residual-current type.

12. Where can I buy Siemens 5SU1654-1RC16 in India?

SB Smart supplies Siemens SENTRON/Betagard 5SU1 RCBOs and industrial electrical protection products in India for panel builders, electrical contractors, industrial buyers, OEMs, commercial installations and maintenance requirements.