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1SDA074736R1 ABB XT2N 125 TMF 30-400 3-Pole UL/CSA Circuit Breaker
ABB 1SDA074736R1 XT2N 125 is a fixed three-pole 30 A moulded case circuit breaker with front terminals, a TMF thermal-magnetic release, a 400 A instantaneous magnetic trip setting and a 25 kA interruption rating at 480 V AC for UL/CSA applications.
£284.08
Why Choose the ABB 1SDA074736R1 XT2N 125 TMF 30-400 3-Pole Circuit Breaker?
The ABB 1SDA074736R1, designated XT2N 125 TMF 30-400 3p F F UL/CSA, is a fixed three-pole moulded case circuit breaker (MCCB) from the ABB SACE Tmax XT range. Built on the XT2N 125 frame, it has a rated current of 30 A and uses a TMF thermal-magnetic release for dependable overload and short-circuit protection.
Designed for UL/CSA applications, this XT2N breaker combines thermal overload protection with instantaneous magnetic short-circuit protection. The TMF 30-400 designation identifies a 30 A thermal rating and a 400 A instantaneous magnetic trip threshold, providing straightforward circuit protection without requiring an electronically powered trip unit.
The 1SDA074736R1 is supplied as a fixed three-pole breaker with front terminals. ABB specifies a rated voltage of 600 V and an N-class interruption rating of 25 kA at 480 V AC, making it a compact protection solution for industrial, commercial and OEM low-voltage distribution equipment.
Key Advantages
- Genuine ABB SACE Tmax XT2N 125 moulded case circuit breaker.
- 30 A TMF thermal-magnetic protection for overload and short-circuit conditions.
- 400 A instantaneous magnetic trip threshold.
- N-class interruption rating of 25 kA at 480 V AC.
- Three-pole configuration for compatible three-phase distribution circuits.
- Designed for UL/CSA applications.
- Fixed mounting with front terminals supports straightforward switchboard and panel integration.
Key Features
- ABB SACE Tmax XT2N 125 frame.
- 30 A rated current.
- 3-pole configuration.
- TMF thermal-magnetic trip unit.
- Thermal overload rating of 30 A.
- Instantaneous magnetic trip setting of 400 A.
- 600 V rated voltage.
- 25 kA at 480 V AC N-class interruption rating.
- Fixed installation with front terminals.
- UL-certified configuration for North American applications.
Reliable Thermal-Magnetic Protection for UL/CSA Distribution Systems
The TMF release combines two established protection principles within the circuit breaker. The thermal element responds to sustained overload currents that could overheat conductors and connected equipment, while the magnetic element provides rapid tripping when a severe short-circuit current reaches the instantaneous operating threshold.
For the ABB 1SDA074736R1, the protection is configured around a 30 A thermal rating and a 400 A magnetic threshold. Combined with the XT2N interruption performance of 25 kA at 480 V AC, this provides compact and dependable protection for compatible industrial, commercial and OEM power distribution applications.
Typical Applications
- Industrial low-voltage distribution panels.
- Commercial building electrical distribution systems.
- Three-phase feeder and branch circuits.
- OEM machinery and electrical equipment.
- Control panels and power distribution enclosures.
- Equipment requiring compact 30 A thermal-magnetic protection.
- UL/CSA-oriented electrical assemblies and switchgear.
Technical Specifications
| Series | SACE Tmax XT |
|---|---|
| Product group | T-Max XT 250 Range |
| Frame / size | XT2N 125 |
| ABB order code | 1SDA074736R1 |
| Alternate catalogue number | XT2NU3030AFF000XXX |
| Product type | Moulded case circuit breaker |
| Application | Power distribution |
| Rated current | 30 A |
| Frame rated current | 125 A |
| Number of poles | 3 |
| Trip unit | TMF thermal-magnetic release |
| Thermal overload rating | 30 A |
| Instantaneous magnetic trip setting | 400 A |
| Rated voltage | 600 V |
| Interruption rating | N – 25 kA at 480 V AC |
| Current type | AC/DC |
| Installation | Fixed |
| Main connection | Front terminals |
| Standard / certification | UL |
| Main-circuit connecting capacity | 32.5–100 mm² busbar |
| Electrical durability | 8000 operations at 120 cycles/hour |
| Mechanical durability | 25,000 operations at 240 cycles/hour |
| Power loss per pole at rated operating conditions | 2.3 W |
| Dimensions (W × H × D) | 90 × 130 × 82.5 mm |
| Product net weight | approx. 1.1 kg |
| Minimum order quantity | 1 piece |
| EAN / UPC | 8015644787134 |
Frequently Asked Questions
What is the ABB 1SDA074736R1?
The ABB 1SDA074736R1 is an XT2N 125 three-pole moulded case circuit breaker with a 30 A TMF thermal-magnetic release, fixed mounting and front terminals for UL/CSA applications.
What does TMF 30-400 mean on the ABB XT2N breaker?
TMF identifies the thermal-magnetic release. The 30-400 designation identifies a 30 A thermal rating and a 400 A instantaneous magnetic short-circuit trip setting.
What is the interruption rating of the ABB 1SDA074736R1?
ABB specifies an N-class interruption rating of 25 kA at 480 V AC for the 1SDA074736R1.
What is the rated voltage of the ABB 1SDA074736R1?
ABB specifies a rated voltage of 600 V for this XT2N 125 UL/CSA circuit breaker configuration.
How is the ABB 1SDA074736R1 installed?
The breaker is supplied as a fixed three-pole unit with front terminals for integration into compatible low-voltage switchboards, panels and electrical equipment.
Trusted ABB Low-Voltage Protection Technology
ABB SACE Tmax XT moulded case circuit breakers combine compact construction with proven thermal-magnetic protection, and the XT2N 125 TMF 30-400 provides a dependable three-pole solution for UL/CSA industrial, commercial and OEM low-voltage electrical applications.
