Product Description

Siemens 5SU1624-1RC63 RCBO – 63A, 2-Pole, 300mA, Type AC, C-Characteristic

The Siemens 5SU1624-1RC63 is a SENTRON / Betagard 5SU1 Residual Current Circuit Breaker with Overcurrent Protection (RCBO) designed to provide combined overload, short-circuit and residual-current protection for compatible single-phase electrical circuits. The exact article is specified as a 63 A, 2-pole, 4-module, C-characteristic, Type AC, 300 mA RCBO with 10 kA breaking capacity. Indian product data identifies it for 240/415 V AC, 50/60 Hz applications.

Siemens 5SU1624-1RC63 RCBO

The 5SU1624-1RC63 belongs to the Siemens SENTRON / Betagard 5SU1 RCBO family. Unlike a conventional RCCB, an RCBO combines several protective 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 description identifies this article as 63 A, 2-pole, 4-module, C characteristic, Type AC, 300 mA.

63 A Rated Current

The RCBO has a rated current of 63 A.

This makes it suitable for compatible higher-current single-phase circuits and feeders where the circuit protection design requires a 63 A protective device.

The actual selection should consider:

• Connected load

• Cable ampacity

• Installation method

• Ambient temperature

• Prospective short-circuit current

• Protection coordination requirements

The exact article is listed with a 63 A rating.

C Tripping Characteristic

The 5SU1624-1RC63 uses a C tripping characteristic.

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

Potential applications include:

• Small motors

• Pumps

• Fans

• Control transformers

• Contactors

• Solenoids

• Industrial auxiliary circuits

• Selected equipment feeders

The C characteristic should be selected according to the connected load and protection-coordination requirements.

Type AC Residual Current Protection

The RCBO uses Type AC residual-current protection.

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

The actual residual-current waveform of the connected equipment should be checked before selecting the RCBO type. Where equipment can produce pulsating DC or other residual-current components, a different residual-current type may be required.

The exact article is identified as Type AC.

300 mA Residual Current Sensitivity

The 5SU1624-1RC63 has a rated residual operating current of 300 mA.

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

The 300 mA sensitivity should be selected according to the complete electrical protection design. It should not automatically be replaced with a 30 mA device because the two thresholds are intended for different protection requirements.

The exact product data confirms 300 mA sensitivity.

2-Pole / Single-Phase Configuration

The device is a 2-pole RCBO, intended for suitable single-phase circuit protection.

The two-pole arrangement allows phase and neutral to be incorporated into the switching/protection arrangement.

Typical applications include:

• Single-phase distribution boards

• Commercial electrical panels

• Building electrical systems

• Equipment feeders

• Office circuits

• Industrial auxiliary supplies

• Machine control circuits

240/415 V AC Supply Category

Indian product information identifies the 5SU1624-1RC63 within the 240/415 V AC, 50/60 Hz Betagard RCBO range.

For a two-pole single-phase application, the applicable system voltage should be checked against the actual installation and the current Siemens technical documentation.

10 kA Short-Circuit Breaking Capacity

The exact product is listed with a 10 kA breaking capacity.

The prospective short-circuit current at the installation point should nevertheless be verified during system design, together with upstream protection and coordination requirements.

Because the device is an RCBO, its overcurrent function also provides short-circuit protection within its specified ratings.

Compact 4-Module Design

The supplied product description specifies 4 modules.

A module-width designation refers to physical panel space and does not indicate a 4 MW power rating.

The 4-module format provides a compact arrangement for a 63 A two-pole RCBO compared with larger multi-device protection arrangements.

DIN-Rail Installation

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

The 5SU1624-1RC63 can be incorporated into suitable:

• DIN-rail distribution boards

• Commercial electrical panels

• Control panels

• Sub-distribution boards

• Industrial electrical enclosures

The panel should provide sufficient space and compatible mounting arrangements for the selected device.

Overload Protection

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

The 63 A rating should be coordinated with the conductor size, connected load and installation method.

Correct selection helps ensure circuit protection without unnecessary nuisance tripping.

Short-Circuit Protection

The RCBO also provides integrated short-circuit protection.

The 10 kA capability should be evaluated against the prospective fault current at the installation point.

The complete electrical protection system should be designed according to applicable standards and installation requirements.

Residual-Current Protection

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

The RCBO monitors the relevant residual-current condition and disconnects the protected circuit when the specified 300 mA threshold is reached.

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

C-Curve Applications

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

Potential applications include:

• Pumps

• Fans

• Small motors

• Transformers

• Solenoids

• Contactors

• Auxiliary industrial equipment

• Selected commercial equipment

Actual suitability depends on the starting current and protection-coordination requirements of the load.

Single-Phase Electrical Applications

The 5SU1624-1RC63 can be considered for compatible:

• Single-phase distribution boards

• Commercial feeder circuits

• Building electrical panels

• Equipment supply circuits

• Industrial auxiliary circuits

• Control-panel supplies

• Small machinery feeders

• Commercial installations

The final application should follow the electrical-system design and applicable regulations.

Difference Between RCBO and RCCB

The 5SU1624-1RC63 is an RCBO.

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.

This can simplify circuit-level protection and reduce component count in electrical panels.

Difference from 5SU1624-1RC32

The 5SU1624-1RC32 is the corresponding 32 A version in the same general 2-pole, C characteristic, Type AC, 300 mA family.

Therefore:

5SU1624-1RC32 → 32 A

5SU1624-1RC63 → 63 A

The principal difference is the rated current.

Difference from 30 mA Version

The 5SU1624-1RC63 is specifically a 300 mA residual-current version.

Where the protection design requires a 30 mA threshold, a different article should be selected.

The residual-current sensitivity should not be changed without checking the protection requirements of the circuit.

Difference from Type A Version

This article is Type AC.

A Type A RCBO is designed for compatible AC residual currents plus pulsating DC residual-current components, whereas Type AC is intended for compatible sinusoidal AC residual currents.

For modern electronic loads, the correct residual-current type should be verified before selection.

Difference from D Characteristic

A D-curve RCBO is intended for compatible circuits with higher starting or inrush currents than a C-curve device.

The 5SU1624-1RC63 specifically uses a C characteristic, so the D-curve equivalent should be selected only where the load characteristics and coordination requirements justify it.

Difference from 4-Pole RCBO

The 5SU1644 family contains four-pole RCBOs for compatible three-phase-plus-neutral applications.

The 5SU1624-1RC63 is a 2-pole device for suitable single-phase circuits.

Therefore, pole configuration must be checked carefully when selecting an exact replacement.

Suitable for Electrical Panel Builders and Industrial Buyers

The Siemens 5SU1624-1RC63 is relevant for:

• Electrical panel builders

• Industrial buyers

• Electrical contractors

• Commercial electrical contractors

• OEMs

• Machine builders

• Facility-maintenance teams

• Electrical distributors

• Building-services contractors

• Electrical product dealers

For SB Smart, the product is positioned as a Siemens SENTRON / Betagard 5SU1 Type AC RCBO for 63 A single-phase circuit protection with C characteristic.

Technical Specification

The exact product data confirms 63 A, 2-pole, 4-module, Type AC, C curve, 300 mA and 10 kA. Indian product information also specifies the Betagard 5SU1 range at 240/415 V AC, 50/60 Hz and identifies this article as 5SU16241RC63.

Key Features

• Siemens SENTRON / Betagard 5SU1 RCBO

• Article number 5SU1624-1RC63

• 63 A rated current

• 2-pole configuration

• 4-module format

• Type AC residual-current protection

• 300 mA residual-current sensitivity

• C tripping characteristic

• 10 kA breaking capacity

• 240/415 V AC family rating

• 50/60 Hz operating frequency

• Integrated overload protection

• Integrated short-circuit protection

• Integrated residual-current protection

• Suitable for compatible single-phase electrical circuits

Benefits

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

• 63 A rating: Suitable for compatible higher-current single-phase circuits.

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

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

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

• 2-pole design: Suitable for compatible single-phase circuit protection.

• 4-module format: Provides a compact modular installation arrangement.

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

• Siemens Betagard 5SU1 platform: Provides a standardized integrated circuit-protection solution.

Why Choose Siemens 5SU1624-1RC63?

The Siemens 5SU1624-1RC63 combines 63 A overcurrent protection, C-curve tripping and Type AC 300 mA residual-current protection in a compact 2-pole, 4-module RCBO.

The exact product information confirms the combination of 63 A, 2 poles, 4 modules, Type AC, 300 mA, C characteristic and 10 kA breaking capacity.

For SB Smart, this product is best presented as a Siemens Betagard/SENTRON 5SU1 Type AC RCBO for 63 A, 300 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 5SU1624-1RC63?

The 5SU1624-1RC63 is a Siemens SENTRON / Betagard 5SU1 RCBO rated at 63 A, with 2 poles, 4 modules, C characteristic, Type AC residual-current protection and 300 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 63 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, making it suitable for compatible single-phase circuit protection.

8. What does 4 modules mean?

The 4-module designation refers to the physical space occupied by the device in a modular electrical panel. It does not mean a 4 MW power rating.

9. What is the voltage rating?

The Betagard 5SU1 product range is specified for 240/415 V AC, 50/60 Hz. For this 2-pole article, the applicable single-phase system voltage should be checked against the exact installation requirements.

10. What is the short-circuit breaking capacity?

The product is listed with a 10 kA breaking capacity.

11. What is the difference between 5SU1624-1RC32 and 5SU1624-1RC63?

5SU1624-1RC32: 32 A, 2-pole, Type AC, 300 mA, C characteristic.

5SU1624-1RC63: 63 A, 2-pole, Type AC, 300 mA, C characteristic.

The principal difference is the rated current.

12. Where can I buy Siemens 5SU1624-1RC63 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.