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1SDA055101R1 ABB TMG 320-1600 T5 4p InN=100%In Thermomagnetic Trip Unit
ABB 1SDA055101R1 TMG 320-1600 T5 4p InN=100%In is a 320 A four-pole thermomagnetic trip unit for compatible SACE Tmax T5 circuit breakers with a fully rated neutral and an adjustable 800–1600 A instantaneous short-circuit setting.
£1,213.12
Why Choose the ABB TMG 320-1600 T5 4p InN=100%In?
The ABB 1SDA055101R1 is a genuine TMG four-pole thermomagnetic trip unit designed for compatible ABB SACE Tmax T5 moulded case circuit breakers. Identified as TMG 320-1600 T5 4p InN=100%In, it provides thermal overload and magnetic short-circuit protection for low-voltage AC and DC electrical systems.
Rated at 320 A, the 1SDA055101R1 features an adjustable instantaneous short-circuit setting from 800–1600 A. Its four-pole configuration incorporates a fully rated neutral at 100% of phase current, providing full-current neutral protection for installations where significant neutral loading may occur.
Designed for the ABB SACE Tmax T5 platform, the TMG release combines established thermomagnetic protection principles with a fully rated neutral configuration. This makes it suitable for generator protection, commercial distribution and industrial power systems requiring dependable protection across all four conductors.
Key Advantages
- Genuine ABB SACE Tmax T5 protection accessory.
- 320 A rated current for compatible Tmax T5 installations.
- Thermomagnetic protection against overloads and short circuits.
- Adjustable instantaneous short-circuit setting from 800–1600 A.
- 4-pole configuration including neutral protection.
- Neutral rated at 100% of phase current for full neutral protection.
- Suitable for compatible AC and DC electrical systems.
Key Features
- ABB SACE Tmax T5 trip-unit platform.
- TMG thermomagnetic release.
- 320 A rated current.
- 800–1600 A adjustable instantaneous short-circuit setting.
- 4-pole configuration.
- InN = 100% In fully rated neutral.
- Thermal protection for sustained overload conditions.
- Magnetic protection for high short-circuit currents.
- Suitable for compatible AC/DC circuit-breaker applications.
- ABB order code 1SDA055101R1.
- EAN 8015644562458.
Four-Pole Thermomagnetic Protection with a Fully Rated Neutral
A thermomagnetic trip unit combines thermal overload protection with magnetic short-circuit protection. The thermal element responds to sustained overcurrent conditions, while the magnetic element provides rapid operation during high fault currents. The ABB 1SDA055101R1 adds a fully rated neutral, allowing the neutral conductor to be protected at the same 320 A rating as the phase conductors.
The adjustable 800–1600 A instantaneous magnetic setting allows the short-circuit protection threshold to be coordinated with the electrical installation. Its InN=100%In configuration is particularly useful in four-wire systems where the neutral may carry substantial current, including installations containing unbalanced or non-linear loads.
Typical Applications
- ABB SACE Tmax T5 moulded case circuit breaker installations.
- Four-pole low-voltage distribution systems.
- Systems requiring a fully rated neutral conductor.
- Generator protection and distribution systems.
- Commercial and industrial switchboards.
- Electrical installations with unbalanced or non-linear loads.
- Compatible AC and DC power distribution applications.
Technical Specifications
| Series | SACE Tmax T |
|---|---|
| Product group | 310511-T-Max T4 - T8 |
| Model / type | TMG 320-1600 T5 4p InN=100%In |
| Order code | 1SDA055101R1 |
| Product type | Thermomagnetic trip unit |
| Trip-unit type | TMG |
| Compatible frame | Tmax T5 |
| Rated current | 320 A |
| Instantaneous short-circuit trip range | 800–1600 A |
| Number of poles | 4 |
| Neutral rating | 100% In |
| Neutral configuration | Fully rated neutral |
| Protection functions | Overload and short-circuit protection |
| Suitable current systems | AC / DC |
| EAN | 8015644562458 |
| Country of origin | Italy |
Frequently Asked Questions
What is the ABB 1SDA055101R1?
The ABB 1SDA055101R1 is a 320 A four-pole TMG thermomagnetic trip unit for compatible ABB SACE Tmax T5 moulded case circuit breakers, providing overload and short-circuit protection with a fully rated neutral.
What is the short-circuit trip range of the ABB 1SDA055101R1?
The instantaneous magnetic short-circuit setting is adjustable from 800–1600 A.
What does InN=100%In mean on the ABB 1SDA055101R1?
InN=100%In means the neutral is fully rated at the same current as the phase conductors. For this trip unit, the rated phase current and fully rated neutral current are 320 A.
Which circuit breaker is the ABB 1SDA055101R1 designed for?
The trip unit is designed for compatible ABB SACE Tmax T5 moulded case circuit breakers and has a four-pole configuration.
What protection does the ABB TMG 320 trip unit provide?
The TMG release provides thermal overload protection and magnetic short-circuit protection, with an adjustable instantaneous magnetic setting of 800–1600 A and a fully rated neutral.
Trusted ABB Circuit Protection
ABB SACE Tmax thermomagnetic releases provide panel builders, electrical contractors and industrial users with purpose-designed overload and short-circuit protection for demanding low-voltage distribution systems, including four-pole applications requiring a fully rated neutral.
