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1SDA100556R1 XT5S 4 pole 400A MCCB Breaking Part with front terminals
ABB 1SDA100556R1 SACE Tmax XT5S 400 A fixed four-pole breaking part with front terminals for assembly with a compatible ABB XT5 trip unit.
£596.06
Why Choose the ABB 1SDA100556R1 Tmax XT5S Breaking Part?
The ABB 1SDA100556R1 is a 400 A four-pole breaking part designed for modular ABB SACE Tmax XT5 moulded case circuit breaker assemblies. Part of the ABB Tmax XT5S range, it combines a fixed mounting format with front terminals and enhanced short-circuit interruption performance for demanding industrial and commercial power distribution systems.
This product is supplied as the circuit breaker's breaking part and does not include a protection trip unit. A compatible ABB XT5 thermal-magnetic or electronic trip unit must therefore be selected separately to create a complete MCCB with the required overload, short-circuit and system-coordination characteristics.
The four-pole construction enables all three phase conductors and the neutral conductor to be switched together. With a rated uninterrupted current of 400 A, an operational voltage of up to 690 V AC and a breaking capacity of 50 kA at 415 V AC, the ABB 1SDA100556R1 provides a flexible foundation for reliable circuit protection in higher-fault-level installations.
Key Advantages
- 400 A breaking part for ABB Tmax XT5 circuit breaker assemblies.
- XT5S interruption-performance level for demanding installations.
- Four-pole configuration supports simultaneous phase and neutral switching.
- Compatible with selected ABB XT5 thermal-magnetic and electronic trip units.
- Fixed mounting format provides secure switchboard integration.
- Front terminals simplify cable and busbar connections.
Key Features
- ABB SACE Tmax XT5S series.
- 400 A rated uninterrupted current.
- Four-pole breaking part.
- S-level short-circuit performance.
- Fixed installation configuration.
- Front terminal connection arrangement.
- Modular compatibility with ABB XT5 trip units.
- Suitable for AC and selected DC applications.
Flexible Modular Circuit Protection
The ABB 1SDA100556R1 provides the switching and interruption mechanism required for an XT5S circuit breaker assembly. By pairing it with a suitable ABB XT5 trip unit, engineers can configure the completed MCCB around the load current, conductor capacity, prospective fault level and required protection functions.
This modular approach allows panel builders to standardise the breaker platform while selecting thermal-magnetic or electronic protection appropriate to each circuit. It can also simplify servicing and future system modifications because the breaking part and trip unit are selected as compatible components.
Enhanced Short-Circuit Interruption Performance
The XT5S performance level is designed for electrical installations with higher prospective fault currents. The ABB 1SDA100556R1 offers an ultimate and service breaking capacity of 50 kA at 415 V AC, making it suitable for use in industrial switchboards, main distribution assemblies and installations positioned closer to transformers or high-capacity supplies.
Four-Pole Switching for Three-Phase Systems
Its four-pole arrangement enables the three phase conductors and neutral conductor to be switched by the same mechanism. This configuration is commonly specified for three-phase, four-wire networks where neutral isolation is required for operational safety, maintenance or installation compliance.
Typical Applications
- Industrial low-voltage switchboards.
- Main and sub-main distribution panels.
- Three-phase, four-wire electrical systems.
- Motor control centres.
- Commercial power distribution systems.
- OEM machinery and control-panel assemblies.
Technical Specifications
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| Mounting Type | Fixed | |
|---|---|---|
| Application | Power distribution | |
| Current | 400 A | |
| Phase | Three Phase | |
| Poles | 4-pole | |
| Device Type | MCCB | |
| Breaking Capacity | 85 kA | |
| Manufacturer | ABB | |
| Series | SACE Tmax XT | |
| Extended product type | XT5S 400 BREAKING PART 4p F F | |
| Product ID | 1SDA100556R1 | |
| EAN / GTIN | 8056221006323 | |
| Product type | Moulded case circuit breaker breaking part | |
| Frame size | XT5 | |
| Rated uninterrupted current | 400 A | |
| Number of poles | 4 | |
| Short-circuit performance level | S | |
| Rated operational voltage | 690 V AC / 750 V DC | |
| Rated insulation voltage | 1000 V | |
| Rated impulse withstand voltage | 8 kV | |
| Ultimate breaking capacity at 220–240 V AC | 85 kA | |
| Ultimate breaking capacity at 380–440 V AC | 50 kA | |
| Ultimate breaking capacity at 500–525 V AC | 30 kA | |
| Ultimate breaking capacity at 690 V AC | 25 kA | |
| Service breaking capacity at 415 V AC | 50 kA | |
| Rated short-time withstand current | 5 kA | |
| Mounting type | Fixed | |
| Terminal type | Front terminals | |
| Trip unit included | No | |
| Compatible trip-unit platform | ABB XT5 | |
| Electrical durability | 7,000 operating cycles | |
| Mechanical durability | 20,000 operating cycles | |
| Standards | IEC | |
| Dimensions (H × W × D) | 205 × 186 × 103.5 mm | |
| Net weight | Approx. 4.15 kg | |
| Customs tariff code | 85389099 | |
| HS Code | 85389099 | |
| Country of Manufacture | Italy |
Frequently Asked Questions
What is the ABB 1SDA100556R1?
The ABB 1SDA100556R1 is an XT5S 400 A fixed four-pole breaking part with front terminals, designed for use within a compatible ABB Tmax XT5 moulded case circuit breaker assembly.
Is the ABB 1SDA100556R1 a complete circuit breaker?
No. It is supplied as a breaking part without a trip unit. A compatible ABB XT5 trip unit must be installed to provide overload and short-circuit protection.
What is its breaking capacity at 415 V AC?
The ABB 1SDA100556R1 has an ultimate and service short-circuit breaking capacity of 50 kA at 415 V AC.
How many poles does this breaking part have?
This model has four poles, enabling simultaneous switching of three phase conductors and the neutral conductor.
How is the ABB 1SDA100556R1 installed?
It has a fixed mounting configuration with front terminals for permanent integration into a suitable low-voltage switchboard or distribution enclosure.
Engineered for Professional Power Distribution
ABB SACE Tmax XT modular components give electrical engineers and panel builders a dependable platform for configuring low-voltage circuit protection around the precise requirements of each installation.
