ABB 1SDA073773R1 RTC 250VAC E2.2...E6.2

This ABB 1SDA073773R1 is an air circuit breaker defined by the RTC 250VAC E2.2...E6.2 designation. As an air circuit breaker, it is a switching and protection device designed to interrupt fault currents in electrical distribution systems using air as the insulating medium. This specific ACB circuit breaker carries the ABB brand identification and the catalog number shown, and it is presented in the product title exactly as provided.

In low-voltage power distribution, a low voltage air circuit breaker like this is typically installed in switchgear and distribution panels to provide protection, switching and isolation functions for feeders and main distribution lines. An industrial air circuit breaker such as this one is chosen in applications where a robust, mechanically simple interrupting medium and a specified trip characteristic (RTC) are required. The ABB air circuit breaker designation in the title identifies the manufacturer and model reference that technicians and specifiers will match to their installation and coordination requirements.

• Brand: ABB
• SKU / Catalog Number: 1SDA073773R1
• Product Series / Designation (as provided): RTC 250VAC E2.2...E6.2
• Rated operational voltage (Ue): 250 VAC
• Trip unit (exact): RTC

Application areas for the ABB 1SDA073773R1 RTC 250VAC E2.2...E6.2 include use in low-voltage switchgear, distribution boards, and industrial power distribution systems where a 250 VAC rated operational voltage and an RTC trip unit are specified. Typical use cases are feeder protection, load isolation and coordinated protection schemes in manufacturing plants, commercial buildings and infrastructure installations that require the characteristics indicated by the RTC designation. Installers and system designers should match this exact model number and its RTC trip characteristic when specifying protection and coordination settings in their electrical distribution designs.