Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
1SDA060643R1 ABB Tmax T5L 400A UL/CSA TMA 3-Pole Circuit Breaker
ABB 1SDA060643R1 is a fixed three-pole Tmax T5L 400 A UL/CSA moulded-case circuit breaker with front terminals, a TMA thermomagnetic release and 100 kA ultimate breaking capacity at 400 V AC, 50 Hz.
£3,198.32
Why Choose the ABB 1SDA060643R1 Tmax T5L 400 Circuit Breaker?
The ABB 1SDA060643R1 is a Tmax T5L 400 moulded-case circuit breaker (MCCB) designed for dependable protection and switching in demanding low-voltage power distribution systems. This UL/CSA configuration is supplied as a fixed three-pole breaker with front terminals and an ABB TMA thermomagnetic trip unit.
Rated at 400 A, the T5L 400 combines thermal overload protection with adjustable instantaneous magnetic short-circuit protection. The overload release can be set from 280–400 A, while the instantaneous short-circuit release is adjustable from 2000–4000 A, allowing the breaker protection to be matched to the requirements of the installation.
The T5L performance level provides a rated ultimate short-circuit breaking capacity of 100 kA at 400 V AC, 50 Hz. Together with its 600 V rated voltage, fixed construction and front bolted connections, the 1SDA060643R1 is well suited to industrial switchboards, commercial distribution equipment and high-fault-level electrical systems.
Key Advantages
- Genuine ABB SACE Tmax T5L 400 MCCB.
- 400 A rated uninterrupted current for substantial distribution loads.
- TMA thermomagnetic trip unit provides overload and instantaneous short-circuit protection.
- Adjustable overload protection from 280–400 A.
- Adjustable instantaneous short-circuit protection from 2000–4000 A.
- High 100 kA Icu at 400 V AC, 50 Hz for demanding fault levels.
Key Features
- ABB SACE Tmax T5L 400 moulded-case circuit breaker.
- 400 A rated uninterrupted current.
- Three-pole configuration.
- UL/CSA product configuration.
- ABB TMA thermomagnetic release.
- 280–400 A overload release adjustment range.
- 2000–4000 A instantaneous short-circuit release adjustment range.
- 100 kA ultimate breaking capacity at 400 V AC, 50 Hz.
- Fixed mounting with front bolted terminals.
- IP20 degree of protection.
Reliable Thermomagnetic Protection for Power Distribution
A thermomagnetic circuit breaker combines two complementary protection principles. The thermal element responds to sustained overload conditions, while the magnetic element operates rapidly when a high short-circuit current is detected. This provides straightforward and dependable protection without requiring an electronic trip unit.
The ABB 1SDA060643R1 uses a TMA 400 A thermomagnetic release with adjustable overload and instantaneous protection thresholds. Combined with the T5L breaker's 100 kA Icu at 400 V AC, this makes it particularly suitable for distribution circuits where both high fault interruption capability and adjustable conventional protection are required.
Typical Applications
- Industrial low-voltage power distribution.
- Main and sub-main electrical feeders.
- Manufacturing and process plant switchboards.
- Commercial and infrastructure distribution panels.
- Electrical systems with high prospective short-circuit currents.
- UL/CSA-configured machinery and power distribution equipment.
Technical Specifications
| Series | SACE Tmax T5 |
|---|---|
| Order code | 1SDA060643R1 |
| Product type | Moulded-case circuit breaker (MCCB) |
| Breaker designation | T5L 400 |
| Rated uninterrupted current (Iu) | 400 A |
| Number of poles | 3 |
| Trip unit | TMA thermomagnetic release |
| Overload release adjustment range | 280–400 A |
| Instantaneous short-circuit release adjustment range | 2000–4000 A |
| Rated voltage | 600 V |
| Rated ultimate short-circuit breaking capacity (Icu) at 400 V AC, 50 Hz | 100 kA |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Mounting type | Fixed |
| Main connection position | Front |
| Main-circuit connection | Bolted connection |
| Operating element | Toggle handle |
| Complete device with protection unit | Yes |
| Integrated motor operator | No |
| Optional motor operator | Yes |
| Integrated earth-fault protection | No |
| Degree of protection | IP20 |
| Power loss per pole at rated operating conditions | 19.5 W |
| Mechanical durability | 20,000 cycles |
| Maximum mechanical operating rate | 120 cycles per hour |
| Dimensions (W × H × D) | 140 × 205 × 103.5 mm |
| Net weight | 3.25 kg |
| EAN / GTIN | 8015644631581 |
| ABB product group | 310511-T-Max T4 - T8 |
Frequently Asked Questions
What is the ABB 1SDA060643R1?
The ABB 1SDA060643R1 is a Tmax T5L 400 A three-pole moulded-case circuit breaker with fixed mounting, front terminals and a TMA thermomagnetic protection release.
What is the current rating of the ABB 1SDA060643R1?
The breaker has a rated uninterrupted current of 400 A, with its thermal overload release adjustable from 280–400 A.
What is the short-circuit adjustment range of the ABB 1SDA060643R1?
The TMA magnetic short-circuit release is adjustable from 2000–4000 A, providing instantaneous protection against high fault currents.
What is the breaking capacity of the ABB T5L400 1SDA060643R1?
The breaker has a rated ultimate short-circuit breaking capacity of 100 kA at 400 V AC, 50 Hz.
Is the ABB 1SDA060643R1 a complete circuit breaker?
Yes. The 1SDA060643R1 is a complete three-pole Tmax T5L circuit breaker with its TMA thermomagnetic protection unit, supplied in a fixed configuration with front main-circuit connections.
Trusted ABB Circuit Protection
ABB SACE Tmax moulded-case circuit breakers combine robust switching technology with coordinated overload and short-circuit protection, providing dependable circuit protection for demanding industrial, commercial and infrastructure power distribution systems.
