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1SDA070166R1 ABB XT3N 250 TMD 100-1000 4p F F 50°C
ABB 1SDA070166R1 XT3N 250 is a 100 A four-pole fixed moulded case circuit breaker with front terminals, TMD thermomagnetic protection, a 70–100 A adjustable overload setting, 1000 A instantaneous release and 36 kA ultimate breaking capacity at 400 V AC.
£790.54
Why Choose the ABB XT3N 250 TMD 100-1000 4p F F 50°C?
The ABB XT3N 250 TMD 100-1000 4p F F 50°C, order code 1SDA070166R1, is a 100 A four-pole moulded case circuit breaker (MCCB) from the ABB SACE Tmax XT3 range. Designed for low-voltage power distribution, it combines the XT3N 250 frame with a TMD thermomagnetic trip unit for dependable overload and short-circuit protection.
The TMD release provides adjustable thermal overload protection from 70–100 A together with fixed instantaneous magnetic short-circuit protection at 1000 A. This thermomagnetic design provides straightforward circuit protection without requiring an electronic trip unit or external power supply for the protection functions.
The 1SDA070166R1 is a four-pole, fixed circuit breaker with front terminals and is specified for a 50°C reference temperature. Its XT3N performance level provides an ultimate short-circuit breaking capacity of 36 kA at 400 V AC, making it suitable for industrial, commercial and OEM distribution systems requiring reliable four-pole protection.
Key Advantages
- 100 A four-pole MCCB for low-voltage power-distribution applications.
- TMD thermomagnetic trip unit provides overload and instantaneous short-circuit protection.
- Adjustable thermal overload setting from 70–100 A.
- Fixed instantaneous magnetic short-circuit release at 1000 A.
- 36 kA ultimate breaking capacity at 400 V AC.
- 50°C calibration/reference temperature for the specified TMD configuration.
- Fixed mounting and front connections provide straightforward switchboard integration.
Key Features
- ABB SACE Tmax XT3N 250 moulded case circuit breaker.
- 100 A rated current.
- 4-pole configuration.
- TMD thermomagnetic protection release.
- Adjustable thermal overload protection.
- Instantaneous magnetic short-circuit protection.
- N breaking-performance level.
- Fixed mounting.
- Front terminals.
- Main circuit connection by bolted connection.
- IP20 degree of protection.
- Manual toggle operating mechanism.
- Optional motor-operated mechanism compatibility.
- Complete circuit breaker supplied with protection unit.
- Designed for low-voltage power-distribution systems.
Thermomagnetic Protection for Reliable Power Distribution
The TMD thermomagnetic release combines two complementary protection principles. Its thermal element responds to sustained overload conditions and can be adjusted from 70–100 A, allowing the breaker to be matched to the required circuit rating. The magnetic element responds rapidly to severe short-circuit currents, with this version providing an instantaneous trip threshold of 1000 A.
Because thermomagnetic protection operates through the physical response of the trip mechanism rather than an electronic protection unit, it provides a robust and straightforward solution for conventional power-distribution circuits. Combined with the XT3N's 36 kA breaking capacity at 400 V AC, four-pole construction and 50°C specification, the 1SDA070166R1 is well suited to dependable distribution-board and switchgear applications.
Typical Applications
- Industrial low-voltage power distribution.
- Main and sub-distribution switchboards.
- Commercial building electrical distribution.
- Four-pole AC distribution circuits.
- Manufacturing and process-industry panels.
- Machinery power-distribution systems.
- Infrastructure electrical distribution.
- OEM switchgear assemblies.
- Applications requiring adjustable thermomagnetic overload protection.
Technical Specifications
| Series | SACE Tmax XT |
|---|---|
| Product group | T-Max XT 250 Range |
| Order code | 1SDA070166R1 |
| Alternate catalogue number | XT3N54100AFF000XXX |
| EAN / UPC | 8015644709792 |
| Product type | Moulded case circuit breaker (MCCB) |
| Frame | XT3 250 |
| Performance level | N |
| Rated current | 100 A |
| Frame rated uninterrupted current (Iu) | 250 A |
| Number of poles | 4 |
| Trip unit | TMD thermomagnetic release |
| Thermal overload adjustment | 70–100 A |
| Instantaneous short-circuit release | 1000 A |
| Reference temperature | 50°C |
| Ultimate breaking capacity (Icu) at 400 V AC, 50 Hz | 36 kA |
| Rated voltage range | 220–690 V |
| Mounting | Fixed |
| Terminal arrangement | Front terminals |
| Main circuit connection | Bolted connection |
| Operating element | Toggle |
| Degree of protection | IP20 |
| Motor operator | Optional |
| DIN rail mounting | Optional |
| Protection unit | Included |
| Product net weight | 2.1 kg |
| Country of origin | Italy |
| Customs tariff / HS code | 85362090 |
| Standard | IEC |
Frequently Asked Questions
What is the ABB 1SDA070166R1?
The ABB 1SDA070166R1 is an XT3N 250 four-pole fixed moulded case circuit breaker rated at 100 A, with front terminals and a TMD thermomagnetic protection release calibrated for a 50°C reference temperature.
What protection does the ABB XT3N 250 TMD provide?
The TMD release provides thermal overload protection and instantaneous magnetic short-circuit protection. On the 1SDA070166R1, the thermal setting is adjustable from 70–100 A and the instantaneous magnetic release is set at 1000 A.
What is the breaking capacity of the ABB 1SDA070166R1?
The XT3N version provides an ultimate short-circuit breaking capacity of 36 kA at 400 V AC, 50 Hz.
What does 50°C mean in the ABB 1SDA070166R1 description?
The 50°C designation identifies the reference temperature for this TMD thermomagnetic release configuration, which is relevant to the thermal overload characteristics of the breaker.
How is the ABB 1SDA070166R1 installed?
The 1SDA070166R1 is a four-pole fixed MCCB with front terminals and bolted main-circuit connections, intended for permanent installation within compatible low-voltage switchboards and distribution assemblies.
Trusted ABB Thermomagnetic Protection for Low-Voltage Distribution
ABB SACE Tmax XT moulded case circuit breakers combine compact construction, dependable thermomagnetic protection and flexible installation options, providing a practical solution for industrial, commercial and OEM low-voltage power-distribution systems.
