Product Description

Siemens 5SU1324-1RC32 RCBO – 32A, 2-Pole, 30mA, Type AC, C-Characteristic

The Siemens 5SU1324-1RC32 is a SENTRON / Betagard 5SU1 Residual Current Circuit Breaker with Overcurrent Protection (RCBO) designed to combine overload, short-circuit and residual-current protection in a single compact device. The exact Siemens data specifies a 32 A, 2-pole, 4-module, C-characteristic, Type AC, 30 mA RCBO for compatible single-phase applications. It has a 240 V AC supply rating, 50 Hz operating frequency, 10 kA short-circuit breaking capacity according to EN 61009-1, and 15 kA switching capacity according to IEC 60947-2.

The product documentation also carries an important country-use warning: use of these devices is not permitted in all countries; national installation regulations must be observed.

Siemens 5SU1324-1RC32 RCBO

The 5SU1324-1RC32 belongs to the Siemens SENTRON / Betagard 5SU1 RCBO family.

An RCBO combines three protection functions in one device:

• Overload protection

• Short-circuit protection

• Residual-current protection

This integrated design can simplify circuit-level protection compared with separate MCB and RCCB arrangements.

The exact Siemens article is specified as 32 A, 2-pole, 4-module, C characteristic, Type AC and 30 mA.

32 A Rated Current

The 5SU1324-1RC32 has a rated current of 32 A.

It is intended for compatible higher-current single-phase circuits and feeders where a 32 A protective device is required.

The final selection should consider:

• Connected load

• Cable ampacity

• Installation method

• Ambient conditions

• Prospective short-circuit current

• Protection coordination

• Applicable electrical regulations

The exact technical data confirms 32 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 moderate starting or inrush current may occur during normal operation.

Potential applications include:

• Pumps

• Fans

• Small motors

• Control transformers

• Contactors

• Solenoids

• Industrial auxiliary equipment

• Selected electrical equipment

The exact Siemens data confirms the C characteristic.

Type AC Residual Current Protection

The 5SU1324-1RC32 uses Type AC residual-current protection.

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

The leakage-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 type.

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

30 mA Residual Current Sensitivity

The device 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 complete electrical protection design and applicable national requirements.

The exact Siemens data confirms 30 mA tripping fault current.

2-Pole Configuration

The device has 2 poles, with both poles protected, and is designed in a 2P configuration.

This configuration is suitable for compatible single-phase applications where phase and neutral are included in the circuit protection arrangement.

Typical applications include:

• Single-phase distribution boards

• Commercial electrical panels

• Building electrical systems

• Equipment feeders

• Office circuits

• Industrial auxiliary supplies

• Control-panel circuits

240 V AC Application

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

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

10 kA Short-Circuit Breaking Capacity

The 5SU1324-1RC32 has a 10 kA short-circuit current breaking capacity according to EN 61009-1.

The technical data also specifies:

• 10 kA according to EN 60898

• 15 kA according to IEC 60947-2

• 10 kA rated residual switching capacity according to IEC 61009-1

• Energy limitation class 3

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

Combined Overcurrent and Residual-Current Protection

The main advantage of the 5SU1324-1RC32 is its integrated protection arrangement.

A conventional installation may use:

MCB + RCCB

An RCBO combines these functions:

RCBO = Overload + Short Circuit + Residual Current Protection

This can reduce component count and simplify individual circuit protection.

4-Module Design

The product is specified as a 4-module RCBO.

Siemens' technical data lists 4 modular width units and a physical width of 72 mm.

The 4-module designation refers to physical panel space and does not represent a power rating.

Physical Dimensions

The exact technical data specifies approximately:

• Height: 90 mm

• Width: 72 mm

• Depth: 70 mm

• Installation depth: 70 mm

• Modular width units: 4

• Net weight: approximately 490 g

• Mounting position: Any

These dimensions are useful for panel builders when checking DIN-rail and enclosure space.

DIN-Rail / Modular Installation

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

The 5SU1324-1RC32 can be incorporated into suitable:

• DIN-rail distribution boards

• Commercial panels

• Control panels

• Sub-distribution boards

• Industrial electrical enclosures

Installation should follow Siemens' wiring, mounting and terminal requirements.

Neutral Conductor Switching

The technical data specifies neutral conductor switching.

This supports suitable phase-and-neutral circuit arrangements.

Flexible Power-Supply Connection

The Siemens technical data specifies that the power supply can be connected from either the top or bottom.

This provides practical flexibility during panel wiring.

Overload Protection

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

The 32 A rating should be coordinated with:

• Cable ampacity

• Connected load

• Installation method

• Ambient temperature

• Protection requirements

Short-Circuit Protection

The RCBO also provides integrated short-circuit protection.

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

Residual-Current Protection

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

The RCBO monitors this condition and disconnects the protected circuit when the specified 30 mA threshold is reached.

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 actual application should be evaluated according to load starting-current characteristics.

Type AC Applications

The 5SU1324-1RC32 is intended for compatible circuits carrying suitable sinusoidal AC residual currents.

For modern 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 5SU1324-1RC32 can be considered for compatible:

• Commercial distribution boards

• Building electrical panels

• Equipment feeders

• Office circuits

• 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

Maintenance and Testing

RCBOs should be included in an appropriate electrical inspection and testing program.

The device test function should be operated according to Siemens' instructions and applicable maintenance requirements to verify residual-current operation.

Regular testing helps confirm that the protection mechanism remains operational.

Installation Considerations

Before selecting the 5SU1324-1RC32, verify:

• Rated current: 32 A

• Residual-current sensitivity: 30 mA

• Residual-current type: Type AC

• Tripping characteristic: C

• Pole configuration: 2-pole

• Rated supply voltage: 240 V AC

• Operating frequency: 50 Hz

• Short-circuit breaking capacity: 10 kA

• Panel space: 4 modules

• Cable size and installation method

• Load starting characteristics

• Applicable national installation regulations

Important Country-Specific Installation Note

The exact Siemens product description states:

“Use of these devices is not permitted in all countries. Observe national installation regulations!”

This warning should remain visible on the SB Smart product page.

For installations in India, the installer should verify the applicable Indian electrical requirements and current Siemens product documentation before installation.

Difference from Type A Version

The 5SU1324-7RC32 is the corresponding 32 A, 2-pole, Type A, 30 mA, C-characteristic configuration. Siemens product documentation lists the Type A 32 A variant in the same 5SU1 family.

Therefore:

5SU1324-1RC32 → Type AC, 32 A, 30 mA

5SU1324-7RC32 → Type A, 32 A, 30 mA

The main difference is the residual-current type.

Difference from 63 A Version

The 5SU1324-1RC63 is the corresponding 63 A, 2-pole, 4-module, Type AC, 30 mA, C-characteristic configuration.

Therefore:

5SU1324-1RC32 → 32 A

5SU1324-1RC63 → 63 A

The main difference is the rated current.

Difference from Lower Current Versions

The Siemens 5SU1 two-pole range includes multiple lower-rated Type A/AC variants.

The 5SU1324-1RC32 is specifically the 32 A configuration, so the current rating should always be matched to the protected circuit and conductor capacity.

Difference from 4-Pole RCBO

The 5SU1344 family contains 4-pole RCBOs for compatible three-phase-plus-neutral applications.

The 5SU1324-1RC32 is a 2-pole RCBO for compatible single-phase applications.

The pole configuration should therefore be checked before selecting a replacement.

Difference from D-Characteristic Version

The 5SU1324-2RC32 represents a D-characteristic configuration in the corresponding Type AC family.

Therefore:

5SU1324-1RC32 → C characteristic

5SU1324-2RC32 → D characteristic

The principal difference is the overcurrent tripping characteristic.

Difference from 100 mA or 300 mA Versions

The 5SU1324-1RC32 is specifically a 30 mA configuration.

A 100 mA or 300 mA RCBO has a different residual-current operating threshold and should not be treated as a direct replacement without confirming the protection requirements.

Difference Between RCBO and RCCB

The 5SU1324-1RC32 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 one device.

Suitable for Electrical Panel Builders and Industrial Buyers

The Siemens 5SU1324-1RC32 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 SENTRON / Betagard 5SU1 Type AC RCBO for 32 A single-phase circuit protection with C characteristic and 30 mA sensitivity.

These values are based on the technical data for the exact 5SU1324-1RC32 article.

Key Features

• Siemens SENTRON / Betagard 5SU1 RCBO

• Article number 5SU1324-1RC32

• 32 A rated current

• 2-pole configuration

• 4-module format

• Type AC residual-current protection

• 30 mA residual-current sensitivity

• C tripping characteristic

• 240 V AC supply voltage

• 50 Hz operating frequency

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

• 15 kA IEC 60947-2 switching capacity

• 10 kA residual switching capacity

• 440 V insulation voltage

• 4 kV surge-voltage resistance

• Neutral conductor switching

• Touch protection

• Top or bottom power-supply connection

• Integrated overload and short-circuit protection

• Integrated residual-current protection

• Modular DIN-rail installation

Benefits

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

• 32 A rating: Suitable for compatible higher-current 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-pole design: Suitable for compatible single-phase applications.

• 4-module format: Provides a modular solution for higher-current two-pole circuit protection.

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

• Neutral switching: Supports suitable phase-and-neutral circuit arrangements.

• Flexible supply connection: Power can be connected from the top or bottom.

Why Choose Siemens 5SU1324-1RC32?

The Siemens 5SU1324-1RC32 combines 32 A overcurrent protection, C-curve tripping and Type AC 30 mA residual-current protection in a 2-pole, 4-module RCBO.

The exact Siemens data confirms 240 V AC, 50 Hz, 32 A, 2-pole configuration, Type AC, 30 mA sensitivity, C characteristic 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 32 A, 30 mA single-phase circuit protection with C characteristic across India.

The country-use warning should remain clearly visible because Siemens states that these devices are not permitted in all countries and national installation regulations must be observed.

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.

Frequently Asked Questions

1. What is Siemens 5SU1324-1RC32?

The 5SU1324-1RC32 is a Siemens SENTRON / Betagard 5SU1 RCBO rated at 32 A, with 2 poles, 4-module width, C characteristic, Type AC residual-current protection and 30 mA sensitivity.

2. Is this an RCBO or RCCB?

It is an RCBO, meaning it combines residual-current and 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 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, with both poles protected.

8. What is the module width?

It is a 4-module / 4 MW RCBO with approximately 72 mm physical width.

9. What is the rated voltage?

The exact technical 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 15 kA according to IEC 60947-2 for the applicable switching-capacity specification.

11. Is this product permitted in every country?

No. Siemens explicitly states that use of these devices is not permitted in all countries and that national installation regulations must be observed.

12. What is the difference between 5SU1324-1RC32 and 5SU1324-7RC32?

5SU1324-1RC32: 32 A, 2-pole, Type AC, 30 mA, C characteristic.

5SU1324-7RC32: 32 A, 2-pole, Type A, 30 mA, C characteristic.

The main difference is the residual-current type.

13. What is the difference between 5SU1324-1RC32 and 5SU1324-1RC63?

5SU1324-1RC32: 32 A, 2-pole, Type AC, 30 mA.

5SU1324-1RC63: 63 A, 2-pole, Type AC, 30 mA.

The main difference is the rated current.

14. Where can I buy Siemens 5SU1324-1RC32 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.