Product Description

Siemens 5SU1354-1RC25 RCBO – 25A, 2-Pole, 30mA, Type AC, C-Characteristic

The Siemens 5SU1354-1RC25 is a SENTRON / Betagard 5SU1 Residual Current Circuit Breaker with Overcurrent Protection (RCBO) designed to combine overload, short-circuit and residual-current protection in one compact device. The exact Siemens product is specified as a 25 A, 2-pole / 1P+N, 2-module, C-characteristic, Type AC, 30 mA RCBO with a 240 V AC supply voltage and 10 kA short-circuit breaking capacity according to EN 61009-1.

Siemens 5SU1354-1RC25 RCBO

The 5SU1354-1RC25 belongs to the Siemens SENTRON / Betagard 5SU1 RCBO family. Unlike a conventional RCCB, an RCBO integrates multiple protection functions in one device:

• Overload protection

• Short-circuit protection

• Residual-current protection

This integrated arrangement can simplify circuit-level protection and reduce the need for separate MCB and RCCB devices.

The exact product listing confirms the configuration as 25 A, 2-pole, 2-module, C characteristic, Type AC and 30 mA.

25 A Rated Current

The 5SU1354-1RC25 has a rated current of 25 A.

This makes it suitable for compatible single-phase circuits designed around a 25 A protective device. The actual selection should consider cable ampacity, connected load, installation method, ambient temperature and applicable electrical regulations.

Siemens technical data specifies 25 A operational current at the AC rated value.

C Tripping Characteristic

The RCBO uses a C tripping characteristic.

The C curve is intended for compatible circuits where normal operation can involve moderate starting or inrush current.

Potential applications include:

• Pumps

• Fans

• Small motors

• Contactors

• Solenoids

• Control transformers

• Industrial auxiliary equipment

• Selected electrical equipment

The C characteristic should be matched to the actual load and protection-coordination requirements. The exact Siemens data confirms the C characteristic.

Type AC Residual Current Protection

The 5SU1354-1RC25 uses Type AC residual-current protection.

Type AC protection is intended for compatible sinusoidal alternating residual currents.

The residual-current waveform of the connected equipment should be considered before selecting Type AC. Equipment capable of producing pulsating DC or other residual-current components may require a different residual-current protection type.

The exact product data identifies the residual-current type as AC.

30 mA Residual Current Sensitivity

The 5SU1354-1RC25 has a rated residual operating current of 30 mA.

When the residual-current condition reaches the specified operating threshold, the RCBO disconnects the protected circuit.

The 30 mA sensitivity should be selected according to the overall electrical protection design and applicable installation requirements.

Siemens technical data confirms the 30 mA rated tripping fault current.

2-Pole / 1P+N Configuration

The device has 2 poles in a 1P+N configuration, with 1 protected pole.

This makes it suitable for compatible single-phase circuits where phase and neutral are incorporated into the switching/protection arrangement.

Typical applications include:

• Single-phase distribution boards

• Commercial electrical panels

• Building electrical systems

• Office circuits

• Equipment feeders

• Industrial auxiliary circuits

• Control-panel supplies

240 V AC Application

The exact Siemens technical data specifies a 240 V AC supply voltage and 50 Hz operating frequency.

This makes the device suitable for compatible single-phase AC distribution systems within its specified electrical ratings.

10 kA Short-Circuit Breaking Capacity

The 5SU1354-1RC25 has a 10 kA short-circuit current breaking capacity according to EN 61009-1. Siemens data additionally specifies 10 kA according to EN 60898, 20 kA according to IEC 60947-2, and 10 kA rated residual switching capacity according to IEC 61009-1.

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

Energy Limitation Class 3

The exact technical data specifies energy limitation class 3.

This rating is relevant when evaluating the device's short-circuit energy-limiting characteristics within its applicable standard and installation conditions.

Compact 2-Module Design

The 5SU1354-1RC25 is a 2-module RCBO.

Siemens specifies 2 modular width units and a physical width of 36 mm.

This compact arrangement is useful where panel space is limited, including:

• DIN-rail distribution boards

• Commercial panels

• Control panels

• Sub-distribution boards

• Industrial electrical enclosures

The 2-module designation refers to physical panel space and does not represent a power rating.

DIN-Rail / Modular Installation

The Siemens 5SU1 RCBO family is designed for modular electrical installation.

The 5SU1354-1RC25 can be integrated into compatible distribution boards and electrical panels alongside other DIN-mounted protection and control components.

The technical data specifies the mounting position as any, subject to the manufacturer's installation requirements.

Overload Protection

The overcurrent section of the RCBO protects the connected circuit against sustained excessive current caused by overload.

The 25 A rated current should be coordinated with:

• Cable ampacity

• Connected load

• Installation method

• Ambient temperature

• Protection requirements

Correct selection helps protect the circuit while minimizing nuisance tripping.

Short-Circuit Protection

The RCBO also provides integrated short-circuit protection.

Its 10 kA EN 61009-1 breaking capacity should be considered against the prospective fault current at the installation point.

Residual-Current Protection

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

The RCBO monitors this condition and disconnects the protected circuit when the residual-current operating threshold reaches 30 mA.

This adds residual-current protection to the integrated overload and short-circuit functions.

C-Curve Applications

The C characteristic can be suitable for compatible loads with moderate inrush current.

Potential applications include:

• Pumps

• Fans

• Small motors

• Solenoids

• Contactors

• Control transformers

• Industrial auxiliary equipment

• Selected commercial equipment

The final selection should be evaluated according to the load's starting-current characteristics.

Type AC Load Compatibility

The 5SU1354-1RC25 is intended for compatible sinusoidal AC residual currents.

For modern electronic equipment containing rectifiers, variable-speed drives or other power electronics, the appropriate residual-current type should be verified before selecting Type AC.

Single-Phase Electrical Applications

The 5SU1354-1RC25 can be considered for compatible:

• Commercial distribution boards

• Building electrical panels

• Office circuits

• Equipment feeders

• Industrial auxiliary circuits

• Control-panel supplies

• Single-phase equipment

• Dedicated electrical circuits

The final application should follow the electrical design and applicable standards.

Protection Coordination

A typical arrangement can be:

Incoming Supply → RCBO → Protected Single-Phase Load

The complete protection design should consider:

• Prospective short-circuit current

• Cable capacity

• Load current

• C-curve characteristics

• 30 mA residual-current sensitivity

• Upstream protection

• Applicable electrical standards

Power-Supply Connection

The exact technical data specifies that the power-supply connection can be made from either the top or bottom.

This provides practical flexibility during panel wiring and installation.

IP20 Protection

The device is specified as IP20 when the distribution board is installed with connected conductors.

The RCBO should therefore be installed within a suitable electrical enclosure or distribution assembly.

Environmental Conditions

The technical data specifies:

• Operating temperature: -5 °C to +45 °C

• Storage temperature: -40 °C to +75 °C

• Maximum relative humidity: 95%

These conditions should be considered when selecting the installation location.

Permitted Countries and National Installation Regulations

The supplied Siemens product designation states that the device is permitted in all countries and instructs users to observe national installation regulations.

For installations in India, applicable Indian electrical installation requirements and the manufacturer's instructions should be followed.

Difference from 16 A Version

The 5SU1354-1RC16 is the corresponding 16 A, 2-pole, 2-module, C-characteristic, Type AC, 30 mA RCBO.

Therefore:

5SU1354-1RC16 → 16 A

5SU1354-1RC25 → 25 A

The main difference is the rated current. Siemens' current product range includes the 16 A Type AC, 30 mA, C-characteristic variant.

Difference from 32 A Version

The 5SU1354-1RC32 is the corresponding 32 A, 2-pole, 2-module, C-characteristic, Type AC, 30 mA RCBO.

Therefore:

5SU1354-1RC25 → 25 A

5SU1354-1RC32 → 32 A

The primary difference is the rated current.

Difference from 40 A Version

The 5SU1354-1RC40 is the corresponding 40 A, 2-pole, 2-module, C-characteristic, Type AC, 30 mA RCBO.

Therefore:

5SU1354-1RC25 → 25 A

5SU1354-1RC32 → 32 A

5SU1354-1RC40 → 40 A

The correct current rating should be matched to the protected circuit and cable design.

Difference from Type A Version

The 5SU1354-7RC25 belongs to the Type A version of this general 5SU1 RCBO configuration, whereas 5SU1354-1RC25 is specifically Type AC.

Therefore:

5SU1354-1RC25 → Type AC, 25 A, 30 mA

5SU1354-7RC25 → Type A, 25 A, 30 mA

The main difference is the residual-current type.

Difference from 300 mA Version

The 5SU1654-1RC25 is the corresponding 25 A, Type AC, C-characteristic, 300 mA configuration.

Therefore:

5SU1354-1RC25 → 25 A, 30 mA

5SU1654-1RC25 → 25 A, 300 mA

The main difference is residual-current sensitivity.

Difference Between RCBO and RCCB

The 5SU1354-1RC25 is an RCBO, not simply an RCCB.

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

An RCBO combines:

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

in a single device.

Suitable for Electrical Panel Builders and Industrial Buyers

The Siemens 5SU1354-1RC25 is relevant for:

• Electrical panel builders

• Industrial buyers

• Electrical contractors

• OEMs

• Machine builders

• Facility-maintenance teams

• Commercial electrical contractors

• Electrical distributors

• Automation system integrators

• Electrical product dealers

For SB Smart, the product is positioned as a Siemens Betagard/SENTRON 5SU1 Type AC RCBO for 25 A, 30 mA single-phase circuit protection with C characteristic.

Technical Specification

These specifications are based on the Siemens technical data for 5SU1354-1RC25.

Key Features

• Siemens SENTRON / Betagard 5SU1 RCBO

• Article number 5SU1354-1RC25

• 25 A rated current

• 2-pole / 1P+N configuration

• 2-module compact format

• 36 mm physical width

• Type AC residual-current protection

• 30 mA residual-current sensitivity

• C tripping characteristic

• 240 V AC rated supply voltage

• 50 Hz operating frequency

• 10 kA EN 61009-1 breaking capacity

• 20 kA IEC 60947-2 switching capacity

• 10 kA residual switching capacity

• Energy limitation class 3

• Top or bottom power-supply connection

• Suitable for compatible single-phase circuits

Benefits

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

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

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

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

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

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

• 10 kA breaking capacity: Provides substantial short-circuit interruption capability within specified conditions.

• 1P+N configuration: Suitable for compatible phase-and-neutral single-phase circuits.

• Flexible supply connection: Allows top or bottom power connection.

Why Choose Siemens 5SU1354-1RC25?

The Siemens 5SU1354-1RC25 combines 25 A overcurrent protection, C-curve tripping and Type AC 30 mA residual-current protection in a compact 2-pole, 2-module RCBO.

The exact technical data confirms 1P+N configuration, 25 A rated current, 30 mA residual-current sensitivity, Type AC protection, C characteristic, 240 V AC supply voltage and 10 kA EN 61009-1 short-circuit breaking capacity.

For SB Smart, this product is best presented as a Siemens Betagard/SENTRON 5SU1 Type AC RCBO for 25 A, 30 mA single-phase circuit protection with C characteristic 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 5SU1354-1RC25?

The 5SU1354-1RC25 is a Siemens SENTRON / Betagard 5SU1 RCBO rated at 25 A, with 2 poles / 1P+N, 2-module width, C characteristic, Type AC residual-current protection and 30 mA sensitivity.

2. Is this an RCBO or RCCB?

It is an RCBO, combining residual-current and overcurrent protection in one device.

3. What is the rated current?

The rated current is 25 A.

4. What is the residual-current sensitivity?

The rated residual operating current is 30 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 RCBO with a physical width of 36 mm.

9. What is the rated voltage?

The exact product data specifies 240 V AC at 50 Hz.

10. What is the short-circuit breaking capacity?

The product is specified at 10 kA according to EN 61009-1, with 20 kA according to IEC 60947-2 for the applicable switching-capacity specification.

11. What is the difference between 5SU1354-1RC25 and 5SU1354-1RC32?

5SU1354-1RC25: 25 A, Type AC, 30 mA, C characteristic.

5SU1354-1RC32: 32 A, Type AC, 30 mA, C characteristic.

The main difference is the rated current.

12. What is the difference between 5SU1354-1RC25 and 5SU1354-7RC25?

5SU1354-1RC25: Type AC, 25 A, 30 mA, C characteristic.

5SU1354-7RC25: Type A, 25 A, 30 mA, C characteristic.

The main difference is the residual-current type.

13. Where can I buy Siemens 5SU1354-1RC25 in India?

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