The Siemens 5SU1344-7RC32 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 device. The exact product configuration is 32 A, 4-pole, 7 modules, C characteristic, Type A and 30 mA residual-current sensitivity.
This RCBO is intended for compatible three-phase-plus-neutral electrical circuits where integrated overcurrent and residual-current protection is required in a compact modular device.
The 5SU1344-7RC32 belongs to the Siemens SENTRON / Betagard 5SU1 RCBO family.
An RCBO combines:
Overload protection
Short-circuit protection
Residual-current protection
in one device.
This integrated design can simplify electrical-panel construction compared with separate MCB and RCCB arrangements.
The 5SU1344-7RC32 has a rated current of 32 A.
It is suitable for compatible three-phase circuits and feeders designed around a 32 A protective device.
The final current selection should consider:
Connected load
Cable ampacity
Installation method
Ambient conditions
Prospective short-circuit current
Protection coordination
Applicable electrical regulations
The RCBO uses a C tripping characteristic.
C-curve protection is intended for compatible circuits where normal operation may involve moderate starting or inrush current.
Potential applications include:
Pumps
Fans
Motors
Control transformers
Contactors
Solenoids
Industrial auxiliary equipment
Selected machinery
The actual tripping characteristic should be selected according to the load's starting-current profile and protection-coordination requirements.
The 5SU1344-7RC32 uses Type A residual-current protection.
Type A protection is designed to detect suitable AC residual currents as well as pulsating DC residual-current components.
This makes Type A suitable for many modern electrical and electronic loads, including compatible:
Automation equipment
Electronic power supplies
Rectifier-based equipment
Industrial control systems
Modern machinery
Commercial electronic equipment
The residual-current characteristics of the connected equipment should be checked before selecting the RCBO.
The RCBO has a rated residual operating current of 30 mA.
When the residual-current condition reaches the specified operating threshold, the device disconnects the protected circuit.
The 30 mA sensitivity should be selected according to the complete electrical protection design and applicable installation requirements.
It should not automatically be substituted with a 100 mA or 300 mA device because those configurations have different residual-current operating thresholds.
The device has 4 poles, making it suitable for compatible three-phase-plus-neutral systems.
The four-pole arrangement incorporates the three phases and neutral into the switching/protection arrangement.
Typical applications include:
Three-phase distribution boards
Industrial feeder circuits
PCC panels
MCC panels
Commercial three-phase panels
Machine power circuits
Factory electrical systems
Sub-distribution boards
The 5SU1344-7RC32 is intended for compatible three-phase low-voltage systems in the 415 V AC class.
The exact installation voltage should be checked against the applicable Siemens technical documentation and electrical-system design before installation.
The Siemens 5SU1 RCBO range is designed for short-circuit protection within its specified breaking capacity.
For this product family, the relevant RCBO configurations are available with 10 kA class short-circuit breaking capacity, subject to the applicable standard and exact article configuration.
The prospective short-circuit current at the installation point must still be verified during system design.
The main advantage of the 5SU1344-7RC32 is its integrated protection.
A conventional arrangement may require:
MCB + RCCB
An RCBO combines these functions:
RCBO = Overload + Short Circuit + Residual Current Protection
This can simplify panel design and provide dedicated protection for an individual three-phase circuit.
The product designation specifies 7 modules.
The modular-width designation refers to the physical panel space required by the device and does not represent a power rating.
The 4-pole construction provides a compact arrangement compared with installing separate overcurrent and residual-current protection devices.
The corresponding Siemens 5SU1 four-pole 7-module construction uses approximately:
Height: 90 mm
Width: 126 mm
Depth: 70 mm
Installation depth: 70 mm
Modular width: 7 units
These dimensions are relevant for electrical panel builders when checking available DIN-rail and enclosure space.
The Siemens Betagard 5SU1 RCBO family is intended for modular electrical installation.
The 5SU1344-7RC32 can be installed in suitable:
Distribution boards
Electrical control panels
PCC panels
MCC panels
Industrial switchboards
Commercial electrical enclosures
Machine panels
The installation should follow Siemens mounting, wiring and torque requirements.
The four-pole configuration supports switching of the neutral conductor as part of the complete circuit arrangement.
This makes the device suitable for compatible three-phase-plus-neutral systems requiring the corresponding four-pole protection arrangement.
The Siemens 5SU1 construction supports flexible power-supply connection according to the product's terminal configuration.
The exact connection method should always be verified against the manufacturer's current wiring diagram before installation.
The overcurrent section protects the circuit against sustained excessive current caused by overload.
The 32 A rating should be coordinated with:
Cable capacity
Connected load
Installation method
Ambient temperature
Protection requirements
Correct selection helps provide appropriate circuit protection while minimizing nuisance tripping.
The RCBO also provides integrated short-circuit protection.
The applicable short-circuit breaking capacity should be checked against the prospective fault current at the installation point.
Upstream protection and system coordination must also be considered.
Residual current occurs when part of the electrical current flows through an unintended path, such as leakage toward earth.
The RCBO monitors the residual-current condition and disconnects the circuit when the specified 30 mA threshold is reached.
This provides residual-current protection in addition to overload and short-circuit protection.
The C characteristic can be suitable for compatible loads with moderate starting or inrush current.
Potential applications include:
Pumps
Fans
Motors
Solenoids
Contactors
Control transformers
Industrial machinery
Automation equipment
The actual application should be evaluated according to load starting characteristics and protection coordination.
Type A residual-current protection can be appropriate for compatible loads where residual currents may contain pulsating DC components.
Potential applications include:
Automation systems
Electronic control panels
Switching power supplies
Industrial instrumentation
Rectifier-based equipment
Modern electrical machinery
The equipment manufacturer's leakage-current requirements should be checked before final selection.
The 5SU1344-7RC32 can be considered for compatible:
Industrial distribution boards
Three-phase equipment feeders
PCC panels
MCC panels
Machine power circuits
Factory electrical systems
Commercial switchboards
Sub-distribution boards
Building electrical panels
A typical arrangement can be:
Incoming Supply → RCBO → Protected Three-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
RCBOs should be included in an appropriate inspection and testing program.
The test function should be operated according to Siemens' instructions and applicable maintenance requirements to verify correct residual-current operation.
Regular testing helps confirm that the protective mechanism remains operational.
Before selecting the 5SU1344-7RC32, verify:
Rated current: 32 A
Residual-current sensitivity: 30 mA
Residual-current type: Type A
Tripping characteristic: C
Pole configuration: 4-pole
System voltage: 415 V AC class
Short-circuit level
Panel space: 7 modules
Cable size and installation method
Load starting characteristics
Applicable national installation regulations
The 5SU1344-7RC40 is the corresponding 40 A, 4-pole, 7-module, Type A, 30 mA, C-characteristic version.
Therefore:
5SU1344-7RC32 → 32 A
5SU1344-7RC40 → 40 A
The primary difference is the rated current.
The 5SU1344-7RC63 is the corresponding 63 A, 4-pole, 7-module, Type A, 30 mA, C-characteristic version.
Therefore:
5SU1344-7RC32 → 32 A
5SU1344-7RC40 → 40 A
5SU1344-7RC63 → 63 A
The correct current rating should be selected according to the protected circuit and conductor capacity.
The 5SU1344-8RC32 is the corresponding D-characteristic version within the Type A 30 mA family.
Therefore:
5SU1344-7RC32 → C characteristic
5SU1344-8RC32 → D characteristic
The main difference is the overcurrent tripping characteristic. D curve is intended for compatible loads with higher starting or inrush current.
The 5SU1644-1RC32 is a Type AC, C-characteristic, 300 mA RCBO configuration.
The 5SU1344-7RC32 is specifically:
32 A + 4-pole + 7 modules + C characteristic + Type A + 30 mA
Therefore, both the residual-current type and sensitivity should be checked before selecting an alternative.
The 5SU1444-7RC32 belongs to the Type A, C-characteristic family with 100 mA residual-current sensitivity.
Therefore:
5SU1344-7RC32 → Type A, 30 mA
5SU1444-7RC32 → Type A, 100 mA
The main difference is the residual-current operating threshold.
The 5SU1644-7RC32 is the Type A, C-characteristic configuration with 300 mA residual-current sensitivity.
Therefore:
5SU1344-7RC32 → Type A, 30 mA
5SU1644-7RC32 → Type A, 300 mA
The main difference is residual-current sensitivity.
The 5SU1354 and 5SU1624 product families contain 2-pole RCBOs for compatible single-phase applications.
The 5SU1344-7RC32 is a 4-pole device intended for compatible three-phase-plus-neutral circuits.
The pole configuration must therefore be checked carefully when choosing a replacement.
The 5SU1344-7RC32 is an RCBO, not 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.
The Siemens 5SU1344-7RC32 is relevant for:
Electrical panel builders
Industrial buyers
Electrical contractors
OEMs
Machine builders
Factory 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 A RCBO for 32 A three-phase circuit protection with C characteristic and 30 mA sensitivity.
| Specification | Details |
|---|---|
| Brand | Siemens |
| Product Family | SENTRON / Betagard 5SU1 |
| Article Number | 5SU1344-7RC32 |
| Product Type | Residual Current Circuit Breaker with Overcurrent Protection (RCBO) |
| Rated Current | 32 A |
| Number of Poles | 4 Pole / 4P |
| Number of Protected Poles | 4 |
| Tripping Characteristic | C Curve |
| Residual Current Type | Type A |
| Rated Residual Operating Current | 30 mA |
| Rated Operating Voltage | 415 V AC |
| Operating Frequency | 50 Hz |
| Insulation Voltage (Ui) | 440 V |
| Surge Voltage Resistance | 4 kV |
| Module Width | 7 Modules |
| Physical Width | 126 mm |
| Height | 90 mm |
| Depth | 70 mm |
| Installation Depth | 70 mm |
| Short-Circuit Breaking Capacity | 10 kA class |
| Residual Switching Capacity | 10 kA class |
| Energy Limitation Class | 3 |
| Overvoltage Category | III |
| Pollution Degree | 2 |
| Protection Degree | IP20 when installed in a suitable distribution board |
| Neutral Conductor Switching | Yes |
| Power Supply Position | Top or bottom |
| Mounting Position | Any |
| Application | Three-phase + Neutral AC circuit protection |
Siemens SENTRON / Betagard 5SU1 RCBO
Article number 5SU1344-7RC32
32 A rated current
4-pole configuration
7-module format
Type A residual-current protection
30 mA residual-current sensitivity
C tripping characteristic
415 V AC rated voltage
50 Hz operating frequency
Integrated overload protection
Integrated short-circuit protection
Integrated residual-current protection
Neutral conductor switching
Modular DIN-rail installation
Suitable for compatible three-phase-plus-neutral circuits
Combined protection: Integrates overload, short-circuit and residual-current protection in one device.
32 A rating: Suitable for compatible three-phase circuits and feeders.
Type A protection: Suitable where residual currents may include pulsating DC components.
30 mA sensitivity: Provides residual-current protection at the specified operating threshold.
C characteristic: Suitable for compatible loads with moderate inrush current.
4-pole design: Suitable for compatible three-phase-plus-neutral systems.
7-module format: Provides a practical modular solution for four-pole protection.
Integrated protection: Reduces the need for separate MCB and RCCB components.
Siemens 5SU1 platform: Provides a standardized electrical protection solution.
The Siemens 5SU1344-7RC32 combines 32 A overcurrent protection, C-curve tripping and Type A 30 mA residual-current protection in a 4-pole, 7-module RCBO.
It is suitable for compatible three-phase distribution boards, industrial feeders, machine circuits and commercial electrical panels where Type A, 30 mA residual-current protection is required.
For SB Smart, this product is best presented as a Siemens Betagard/SENTRON 5SU1 Type A RCBO for 32 A, 30 mA three-phase circuit protection with C characteristic 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
The 5SU1344-7RC32 is a Siemens SENTRON / Betagard 5SU1 RCBO rated at 32 A, with 4 poles, 7 modules, C characteristic, Type A residual-current protection and 30 mA sensitivity.
It is an RCBO, meaning it combines residual-current and overcurrent protection in one device.
The rated current is 32 A.
The rated residual operating current is 30 mA.
It uses Type A residual-current protection.
It has a C tripping characteristic.
It has 4 poles, suitable for compatible three-phase-plus-neutral applications.
The product is specified as a 7-module RCBO with approximately 126 mm physical width.
The product is intended for compatible 415 V AC three-phase systems.
The applicable 5SU1 configuration is specified in the 10 kA class, subject to the exact standard and installation conditions.
5SU1344-7RC32: 32 A, 4-pole, Type A, 30 mA, C characteristic.
5SU1344-8RC32: 32 A, 4-pole, Type A, 30 mA, D characteristic.
The main difference is the overcurrent tripping characteristic.
5SU1344-7RC32: Type A, 32 A, 30 mA, C characteristic.
5SU1444-7RC32: Type A, 32 A, 100 mA, C characteristic.
The main difference is residual-current sensitivity.
5SU1344-7RC32: Type A, 32 A, 30 mA, C characteristic.
5SU1644-7RC32: Type A, 32 A, 300 mA, C characteristic.
The main difference is residual-current sensitivity.
5SU1344-7RC32: 32 A, 4-pole, Type A, 30 mA, C characteristic.
5SU1344-7RC40: 40 A, 4-pole, Type A, 30 mA, C characteristic.
The main difference is the rated current.
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.
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