Detailed Description

Product Overview
The ABB 1SDA100828R1 is a high-capacity molded-case circuit breaker (MCCB) from the Tmax XT7 family (XT7S 1250 series). It is rated at 1250 A, configured as a 3-pole unit (3p), with fixed mounting and front-terminals (“F F”). The trip unit is the EKIP DIP LS/I solid-state electronic release, enabling advanced protection and adjustable settings — making it suitable for heavy-duty industrial or commercial power distribution systems. 

Key Specifications

• Model / Part Number: 1SDA100828R1 

• Series: Tmax XT7S 1250 Ekip DIP LS/I 

• Rated Current (Iₙ / Iᵤ): 1250 A 

• Number of Poles: 3-pole 

• Trip / Release Unit: EKIP DIP LS/I (electronic) 

• Connection / Mounting: Fixed, front-terminals (F F) version 

• Rated Operational Voltage: Up to 690 V AC 

• Rated Insulation Voltage (Uᵢ): 1000 V 

• Rated Impulse Withstand Voltage (U_imp): 8 kV 

• Short-Circuit Breaking Capacity (Icu / Ics):

  • At ~380/415 V AC: 50 kA

  • At ~220-240 V AC: 85 kA 

  • At ~690 V AC: 30 kA

• Power Loss (per pole): ~57 W 

• Product Dimensions: Width ~210 mm × Height ~268 mm × Depth ~166 mm 

• Weight: ~13.6 kg 

• Standards: IEC 60947-2 

Features & Benefits

• High current capacity: With a 1250 A rating, this breaker can handle large loads typical of main distribution or industrial feeders.

• Advanced electronic trip unit: The EKIP DIP LS/I release allows adjustable overload, short-time and instantaneous protection settings, which enhances selectivity and system protection flexibility.

• Robust fault interruption: With up to 85 kA at lower voltages, it offers strong protection in fault conditions.

• Compact for its class: One of the more compact dimensions for a 1250 A unit with high protection.

• Fixed front-terminal design: Simplifies wiring and maintenance access in panel bodies, improves installation efficiency.

• Modern standard-compliant: Designed to IEC standards and ABB’s EcoSolutions environmental considerations (recyclability, etc). 

Applications / Use Cases

• Main or sub-distribution boards in industrial facilities, large commercial buildings.

• Protection of transformers, generator feeders, large motor groups.

• Systems where adjustable protection and high fault-capacity are required (using electronic trip).

• Upgrades or retrofits in switchgear where space is limited but high capacity is needed.

Package & Ordering Info

• Part Number: 1SDA100828R1

• EAN / GTIN: 8056221008822 

• Supplied as a single unit (MOQ = 1) 

• Make sure to verify mounting orientation (3-pole, front terminals) and compatibility with your gear.

Compliance & Safety

• The unit meets IEC 60947-2 standards for low-voltage circuit-breakers.

• High interrupting capacity ensures system safety during fault events.

• Electronic trip reduces nuisance trips and improves system availability and monitoring.