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ABB XT1B 160 4 pole Basic MCCB Fixed Thermal/Adjustable Magnetic Release In=125A Ii=1250A
ABB 1SDA066888R1 XT1B 160 TMD 125-1250 4P F F InN=100% moulded case circuit breaker with 125 A rated current, four poles, fully rated neutral, thermomagnetic TMD release and fixed front terminals for low voltage power distribution.
£409.67
Why Choose the ABB XT1B 160 TMD 125-1250 4P F F InN=100% Moulded Case Circuit Breaker?
The ABB 1SDA066888R1 XT1B 160 TMD 125-1250 4P F F InN=100% is a compact and dependable moulded case circuit breaker (MCCB) from the ABB SACE Tmax XT series. Designed for low voltage power distribution, it provides reliable protection against overloads and short circuits in industrial, commercial and OEM electrical installations.
This four-pole MCCB is fitted with an adjustable thermomagnetic TMD trip unit, combining thermal overload protection with magnetic short circuit protection. The fully rated neutral design provides InN=100%, making it suitable for applications where the neutral pole must carry the full rated phase current.
With a 125 A rated current, XT1 160 A frame size and 18 kA breaking capacity at 415 V AC, the ABB XT1B 160 TMD 125-1250 4P F F InN=100% is well suited to feeder protection, distribution boards, machinery supplies and general low voltage electrical systems.
Key Advantages
- Compact ABB SACE Tmax XT moulded case circuit breaker.
- 125 A rated current for dependable low voltage protection.
- Four-pole configuration with fully rated neutral.
- InN=100% neutral pole rating for full neutral current capability.
- Thermomagnetic TMD release for overload and short circuit protection.
- 18 kA breaking capacity at 415 V AC.
- Fixed MCCB with front terminal connections.
- Designed in accordance with IEC 60947-2.
Key Features
- ABB SACE Tmax XT series.
- Model: XT1B 160 TMD 125-1250 4P F F InN=100%.
- Product ID: 1SDA066888R1.
- 125 A rated current.
- 160 A frame size.
- Four-pole MCCB construction.
- Neutral rating: 100% of phase current.
- Adjustable thermomagnetic TMD trip unit.
- Front terminal connection type.
- Fixed mounting version for panel installation.
Reliable Protection for Low Voltage Power Distribution
The ABB XT1B range is engineered to protect electrical circuits by disconnecting power during overload or short circuit conditions. The thermomagnetic release provides a dependable combination of time-delayed overload protection and rapid magnetic fault interruption, helping protect cables, equipment and downstream devices.
Its compact fixed format, four-pole arrangement and fully rated neutral make this MCCB suitable for panel builders, electrical contractors and machine manufacturers requiring reliable protection in demanding low voltage installations.
Typical Applications
- Industrial power distribution systems.
- Commercial switchboards and distribution panels.
- OEM machinery and control cabinets.
- Feeder circuit protection.
- Manufacturing and process equipment.
- Building services and infrastructure systems.
- Low voltage AC and DC electrical protection.
Technical Specifications
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| Mounting Type | Fixed | |
|---|---|---|
| Application | Power distribution | |
| Current | 125 A | |
| Phase | Three Phase | |
| Poles | 4-pole | |
| Device Type | MCCB | |
| Breaking Capacity | 18 kA | |
| Trip Unit | Thermal-magnetic | |
| Manufacturer | ABB | |
| Series | SACE Tmax XT | |
| Model | XT1B 160 TMD 125-1250 4P F F InN=100% | |
| Product code | 1SDA066888R1 | |
| EAN | 8015644007911 | |
| Product type | Moulded Case Circuit Breaker (MCCB) | |
| Frame size | XT1 160 | |
| Rated current (In) | 125 A | |
| Rated uninterrupted current (Iu) | 160 A | |
| Neutral rating | 100% of phase current | |
| Number of poles | 4 | |
| Trip unit | Thermomagnetic TMD | |
| Thermal setting range | 87.5 to 125 A | |
| Instantaneous magnetic setting | 1250 A | |
| Rated operational voltage | Up to 690 V AC / 500 V DC | |
| Rated insulation voltage | 800 V | |
| Rated impulse withstand voltage | 8 kV | |
| Breaking capacity (Icu) | 18 kA at 415 V AC | |
| Terminal type | Front terminals | |
| Mounting type | Fixed | |
| Frequency | 50 / 60 Hz | |
| Standards | IEC 60947-2 | |
| Protection rating | IP20 device rating | |
| Dimensions (H × W × D) | approx. 130 × 101.6 × 70 mm | |
| Weight | approx. 1.4 kg | |
| HS Code | 85362090 | |
| Country of Manufacture | Italy |
Frequently Asked Questions
What is the ABB 1SDA066888R1 used for?
It is used to protect low voltage electrical circuits against overloads and short circuits in industrial, commercial and OEM power distribution systems.
What is the rated current of this MCCB?
The ABB 1SDA066888R1 has a 125 A rated current and is built on the XT1 160 A frame size.
What does InN=100% mean on this breaker?
InN=100% means the neutral pole is fully rated and can carry 100% of the phase current.
What type of trip unit is included?
The breaker is fitted with an adjustable thermomagnetic TMD trip unit for overload and short circuit protection.
What terminals does the XT1B 160 TMD 125-1250 4P F F InN=100% use?
This fixed MCCB uses front terminals, making it suitable for standard installation in switchboards, control panels and distribution assemblies.
Trusted by Electrical Professionals Worldwide
ABB SACE Tmax XT moulded case circuit breakers are trusted by panel builders, electrical contractors and industrial engineers for dependable circuit protection, compact installation and long service life in demanding low voltage systems.
