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1SDA064745R1 ABB E6H 4000 PR123/DC 4000 A 3-Pole Fixed Air Circuit Breaker
ABB 1SDA064745R1 is a SACE New Emax DC E6H 4000 A three-pole fixed air circuit breaker with rear vertical terminals and a PR123/DC R4000 electronic overcurrent release for high-current DC power distribution.
£29,411.48
Why Choose the ABB 1SDA064745R1 E6H 4000 DC Air Circuit Breaker?
The ABB 1SDA064745R1, product designation E6H4000PR123/DCIn=4000A3pFVR, is a high-performance three-pole fixed DC air circuit breaker designed for protection and switching in demanding direct-current electrical distribution systems. As part of the ABB SACE New Emax DC series, it combines the heavy-duty E6H breaker platform with the advanced PR123/DC electronic overcurrent release for dependable protection of high-current DC installations.
This circuit breaker has a rated current of 4000 A and is equipped with an ABB PR123/DC R4000 electronic overcurrent release. Its rated operational voltage is 750 V DC, with a rated insulation voltage of 1000 V and rated impulse withstand voltage of 12 kV, providing robust electrical performance for large industrial DC distribution systems.
The 1SDA064745R1 is a three-pole fixed breaker with rear vertical terminals, providing a durable connection arrangement for integration into compatible switchboards. It is fitted with four auxiliary change-over contacts and open/closed position indication, while an optional motor drive can be added where electrically operated switching is required.
Key Advantages
- Heavy-duty DC air circuit breaker for high-current power distribution.
- 4000 A rated current for demanding industrial DC installations.
- 750 V DC rated operational voltage.
- Advanced PR123/DC R4000 electronic overcurrent release.
- Three-pole fixed configuration for permanent switchboard installation.
- Rear vertical terminals provide a practical high-current connection arrangement.
- Rated ultimate breaking capacity up to 100 kA at 500 V DC.
- Equipped with four auxiliary change-over contacts for control and signalling.
Key Features
- ABB SACE New Emax DC E6H series.
- 4000 A rated current.
- PR123/DC R4000 electronic overcurrent release.
- Three-pole (3P) construction.
- Fixed (F) circuit-breaker execution.
- Rear vertical (VR) main terminals.
- 750 V DC rated operational voltage.
- 1000 V rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- IP30 protection rating.
- Four auxiliary change-over contacts and breaker status indication.
- Optional motor drive for electrically operated switching.
Advanced Protection for High-Current DC Networks
Direct-current distribution systems require circuit breakers specifically engineered to interrupt DC fault currents because DC does not provide the natural current zero crossings present in alternating-current networks. The ABB SACE Emax DC platform combines dedicated interruption technology with electronic protection releases to provide reliable protection for demanding industrial DC systems.
The PR123/DC electronic release provides dedicated overcurrent protection, while the E6H performance level delivers substantial short-circuit interruption capability. With rated ultimate and service breaking capacities of 100 kA at 500 V DC and 65 kA at 750 V DC, the 1SDA064745R1 is suited to high-power installations requiring dependable fault protection and operational continuity.
Typical Applications
- Industrial DC power distribution systems.
- High-current battery and energy-storage installations.
- Renewable-energy and power-conversion systems.
- Marine and shipboard DC electrical networks.
- Data centre DC power infrastructure.
- Industrial switchboards and distribution assemblies.
- Process-industry DC networks.
- Heavy-duty power conversion and DC distribution equipment.
Technical Specifications
| Series | SACE New Emax DC |
|---|---|
| ABB order code / Product ID | 1SDA064745R1 |
| Product type | DC air circuit breaker |
| Breaker frame | E6H |
| Short-circuit performance level | H |
| Rated current | 4000 A |
| Rated uninterrupted current (Iu) | 4000 A |
| Rated operational current (Ie) | 4000 A |
| Rated operational voltage | 750 V DC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Number of poles | 3 |
| Trip unit | PR123/DC |
| Trip unit rating | R4000 / 4000 A |
| Overload protection adjustment range | 1600–4000 A |
| Instantaneous short-circuit adjustment range | 6000–60000 A |
| Rated ultimate short-circuit breaking capacity (Icu) | 100 kA at 500 V DC; 65 kA at 750 V DC |
| Rated service short-circuit breaking capacity (Ics) | 100 kA at 500 V DC; 65 kA at 750 V DC |
| Execution | Fixed |
| Terminal arrangement | Rear vertical |
| Main circuit connection | Bolt connection |
| Auxiliary contacts | 4 change-over contacts |
| Position indication | Circuit breaker open / closed |
| Protection rating | IP30 |
| Motor drive | Optional |
| Electrical durability | 4000 operating cycles |
| Mechanical durability | 12000 operating cycles |
| Power loss | 368 W |
| Weight | approx. 133 kg |
| EAN | 8015644676384 |
| HS code | 85362090 |
Frequently Asked Questions
What is the ABB 1SDA064745R1 used for?
The ABB 1SDA064745R1 is a 4000 A three-pole fixed DC air circuit breaker designed for protection and switching in high-current direct-current power distribution systems.
What trip unit is fitted to the ABB 1SDA064745R1?
The circuit breaker is fitted with an ABB PR123/DC R4000 electronic overcurrent release designed for DC circuit protection.
What voltage and current ratings does this circuit breaker have?
The E6H breaker has a rated current of 4000 A and a rated operational voltage of 750 V DC.
What is the breaking capacity of the ABB 1SDA064745R1?
The breaker has rated ultimate and service short-circuit breaking capacities of 100 kA at 500 V DC and 65 kA at 750 V DC.
Is the ABB 1SDA064745R1 fixed or withdrawable?
The 1SDA064745R1 is a fixed three-pole circuit breaker with rear vertical terminals for permanent installation in a compatible switchboard or electrical distribution assembly.
Trusted DC Protection from ABB
ABB SACE Emax DC air circuit breakers combine dedicated DC protection technology, high-current capability and advanced electronic releases to provide dependable circuit protection for industrial, marine, renewable-energy, energy-storage and other demanding DC power systems.
