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1SDA054081R1 ABB T4L 250 PR221DS-LS/I 100A 4-Pole Fixed MCCB
ABB 1SDA054081R1 is a fixed four-pole SACE Tmax T4L 250 moulded-case circuit breaker with front terminals, a 100 A PR221DS-LS/I electronic trip unit and 120 kA ultimate short-circuit breaking capacity at 380–415 V AC.
£2,570.36
Why Choose the ABB 1SDA054081R1 T4L 250 Circuit Breaker?
The ABB 1SDA054081R1 is a SACE Tmax T4L 250 four-pole moulded-case circuit breaker designed for protection of AC low-voltage power distribution systems. This fixed breaker combines a 100 A PR221DS-LS/I solid-state electronic trip unit with front terminals, providing adjustable overload and short-circuit protection for industrial, commercial and infrastructure installations.
The T4L performance level provides high short-circuit breaking capability, including an ultimate short-circuit breaking capacity (Icu) of 120 kA at 380–415 V AC. ABB also specifies 200 kA at 220–230 V AC, 100 kA at 440 V AC, 85 kA at 500 V AC and 70 kA at 690 V AC, making this breaker suitable for distribution networks with substantial prospective fault currents.
ABB order code 1SDA054081R1 uses the PR221DS-LS/I electronic release, with long-time adjustment from 0.4–1 × In and short-circuit adjustment from 1–10 × In. Its four-pole construction also provides selectable neutral protection at OFF, 50% or 100%, supporting three-phase systems where switching and protection of the neutral conductor are required.
Key Advantages
- Genuine ABB SACE Tmax T4L 250 moulded-case circuit breaker.
- 100 A PR221DS-LS/I solid-state electronic trip unit.
- High 120 kA Icu at 380–415 V AC short-circuit breaking capacity.
- 4-pole configuration for three-phase and neutral applications.
- Fixed installation with front power terminals.
- Long-time protection adjustable from 0.4–1 × In.
- Short-circuit protection adjustable from 1–10 × In.
- Selectable neutral protection settings of OFF / 50% / 100%.
Key Features
- ABB T4L 250 PR221DS-LS/I In=100 4p F F.
- ABB order code 1SDA054081R1.
- T4L 250 frame with L short-circuit performance level.
- Rated trip-unit current of 100 A.
- PR221DS-LS/I solid-state electronic release.
- 4-pole configuration.
- Fixed circuit-breaker execution.
- Front terminal connection.
- Rated operational voltage up to 690 V AC.
- Rated insulation voltage of 1000 V.
- Rated impulse withstand voltage of 8 kV.
- IEC circuit-breaker configuration for AC power distribution.
Electronic Protection with the PR221DS-LS/I Trip Unit
The PR221DS-LS/I electronic trip unit provides configurable current protection for low-voltage distribution circuits. Its long-time function protects against sustained overload conditions, while its short-circuit function responds to higher fault currents. The adjustable settings allow the protection response to be coordinated more closely with the characteristics of the protected circuit.
On this four-pole version, neutral protection can be selected as OFF, 50% or 100%, providing additional flexibility for three-phase systems incorporating a neutral conductor. Combined with the high breaking performance of the T4L platform, the 1SDA054081R1 provides a compact solution for circuits requiring electronic protection and high fault-current interruption capability.
Typical Applications
- Industrial low-voltage power distribution.
- Main and sub-distribution switchboards.
- Four-pole three-phase and neutral circuits.
- Feeder circuit protection.
- Commercial building electrical distribution.
- Manufacturing and process installations.
- Infrastructure and utility distribution panels.
- Circuits requiring 100 A electronic overload and short-circuit protection.
- Installations with high prospective short-circuit currents.
Technical Specifications
| Product group | 310511-T-Max T4 - T8 |
|---|---|
| Series | SACE Tmax T |
| Order code | 1SDA054081R1 |
| MPN | 1SDA054081R1 |
| EAN / GTIN | 8015644551735 |
| Product type | Moulded-case circuit breaker (MCCB) |
| Frame | T4L 250 |
| Rated uninterrupted current (Iu) | 250 A |
| Trip-unit rated current (In) | 100 A |
| Trip unit | PR221DS-LS/I solid-state electronic release |
| Number of poles | 4 |
| Installation | Fixed |
| Main terminal position | Front |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Icu at 220–230 V AC | 200 kA |
| Icu at 380–415 V AC | 120 kA |
| Icu at 440 V AC | 100 kA |
| Icu at 500 V AC | 85 kA |
| Icu at 690 V AC | 70 kA |
| Long-time protection adjustment | 0.4–1 × In |
| Short-circuit protection adjustment | 1–10 × In |
| Neutral protection | OFF / 50% / 100% |
| Electrical durability | 8,000 operating cycles |
| Mechanical durability | 20,000 operating cycles |
| Product dimensions (W × H × D) | 140 × 205 × 103.5 mm |
| Product net weight | 3.05 kg |
| Standard | IEC |
Frequently Asked Questions
What is the current rating of the ABB 1SDA054081R1?
The ABB 1SDA054081R1 has a 100 A PR221DS-LS/I electronic trip unit installed in a T4L 250 breaker with a rated uninterrupted current of 250 A.
What breaking capacity does the ABB 1SDA054081R1 provide?
The T4L breaker provides an ultimate short-circuit breaking capacity (Icu) of 120 kA at 380–415 V AC. ABB also specifies 200 kA at 220–230 V AC, 100 kA at 440 V AC, 85 kA at 500 V AC and 70 kA at 690 V AC.
What trip unit is fitted to the ABB 1SDA054081R1?
The breaker is fitted with an ABB PR221DS-LS/I solid-state electronic release, with long-time protection adjustable from 0.4–1 × In and short-circuit protection adjustable from 1–10 × In.
Is the ABB 1SDA054081R1 a four-pole circuit breaker?
Yes. The 1SDA054081R1 is a four-pole fixed moulded-case circuit breaker with front terminals and selectable neutral protection settings of OFF, 50% or 100%.
What are the dimensions of the ABB 1SDA054081R1?
The circuit breaker measures approximately 140 mm wide, 205 mm high and 103.5 mm deep, with a net weight of approximately 3.05 kg.
ABB SACE Tmax Circuit Protection
ABB SACE Tmax moulded-case circuit breakers combine compact construction, high short-circuit breaking performance and configurable electronic protection for dependable low-voltage power distribution in industrial, commercial and infrastructure applications.
