1SDA055103R1 ABB TMG500-2500 T5 630 4P InN=100%In Thermal-Magnetic Trip Unit

1SDA055103R1 ABB TMG500-2500 T5 630 4P InN=100%In Thermal-Magnetic Trip Unit

ABB 1SDA055103R1 TMG500-2500T56304pInN=100%In is a 500 A four-pole thermal-magnetic trip unit with a 2500 A magnetic protection setting and 100% neutral protection for compatible ABB SACE Tmax T5 630 moulded-case circuit breakers.

SKU: 1SDA055103R1MPN: 1SDA055103R1
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List Price £1,662.31 ex VAT
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Why Choose the ABB 1SDA055103R1 TMG500-2500 T5 630 4p InN=100%In?

The ABB 1SDA055103R1 is a genuine TMG thermal-magnetic trip unit designed for compatible ABB SACE Tmax T5 630 moulded-case circuit breakers. Identified as TMG500-2500T56304pInN=100%In, it provides a rated current of 500 A with a magnetic protection setting of 2500 A.

This TMG trip unit combines thermal overload protection with magnetic short-circuit protection for low-voltage power distribution circuits. Its 4-pole configuration includes neutral protection specified as InN = 100% In, providing a neutral current rating equal to the phase rated current.

Designed for the ABB SACE Tmax T5 630 platform, the 1SDA055103R1 provides a purpose-matched protection solution for compatible circuit-breaker assemblies. Its thermal-magnetic operating principle is well suited to industrial and commercial distribution systems requiring straightforward overload and short-circuit protection.

Key Advantages

  • Genuine ABB TMG thermal-magnetic trip unit for compatible Tmax T5 630 circuit breakers.
  • 500 A rated current for substantial low-voltage distribution loads.
  • 2500 A magnetic protection setting for short-circuit protection.
  • 4-pole configuration for compatible four-wire distribution systems.
  • Neutral protection specified at 100% of rated phase current.
  • Combines thermal overload and magnetic short-circuit protection in one dedicated ABB unit.

Key Features

  • ABB TMG500-2500T56304pInN=100%In.
  • TMG thermal-magnetic protection technology.
  • Rated current (In): 500 A.
  • Magnetic protection setting: 2500 A.
  • Designed for the T5 630 frame.
  • 4-pole configuration.
  • Neutral protection: InN = 100% In.
  • ABB order code 1SDA055103R1.

Thermal-Magnetic Protection for Tmax T5 630

Thermal-magnetic protection combines two established protection principles within a single trip unit. The thermal element responds to sustained overcurrent conditions to protect against overloads, while the magnetic element provides rapid operation when current rises to the specified short-circuit protection level.

The ABB 1SDA055103R1 combines a 500 A rated current with a 2500 A magnetic protection setting. Its four-pole configuration provides 100% neutral protection, making it suitable for compatible T5 630 applications where the neutral conductor requires protection at the same rated-current level as the phase conductors.

Typical Applications

  • ABB SACE Tmax T5 630 moulded-case circuit-breaker assemblies.
  • Four-pole low-voltage power distribution systems.
  • Industrial electrical switchboards.
  • Commercial power distribution panels.
  • Circuits requiring thermal overload and magnetic short-circuit protection.
  • Four-wire installations requiring 100% neutral protection.

Technical Specifications

Order code 1SDA055103R1
Product designation TMG500-2500T56304pInN=100%In
Product type Thermal-magnetic trip unit
Trip unit TMG
Rated current (In) 500 A
Magnetic protection setting 2500 A
Number of poles 4
Neutral protection InN = 100% In
Protection functions Thermal overload and magnetic short-circuit protection
Suitable for Tmax T5 630
Product family SACE Tmax T
ABB product group 310511-T-Max T4 - T8

Frequently Asked Questions

What is the ABB 1SDA055103R1?

The ABB 1SDA055103R1 is a TMG thermal-magnetic trip unit designed for compatible ABB SACE Tmax T5 630 moulded-case circuit breakers.

What is the rated current of the ABB 1SDA055103R1?

The TMG trip unit has a rated current of 500 A.

What is the magnetic protection setting of the ABB 1SDA055103R1?

The TMG500-2500 designation specifies a magnetic protection setting of 2500 A.

How many poles does the ABB 1SDA055103R1 have?

The 1SDA055103R1 is a 4-pole trip-unit configuration for compatible Tmax T5 630 circuit breakers.

What does InN=100%In mean on the ABB 1SDA055103R1?

InN = 100% In means the neutral protection is rated at 100% of the phase rated current, giving the neutral pole a 500 A current rating in this configuration.

Trusted by Electrical Professionals Worldwide

ABB SACE Tmax circuit breakers and their dedicated thermal-magnetic protection units are used in industrial and commercial low-voltage distribution systems where dependable overload protection, short-circuit protection and correctly matched circuit-breaker components are essential.