SIEMENS SIRIUS 3RV2 Circuit Breaker for Transformer Protection 5.5-8A 3-Pole 3RV2411-1HA1 3RV24111HA10

Short-circuit breaking capacity of 100 kA at 400 V AC ensures robust protection for transformer circuits. The SIEMENS 3RV2411-1HA1 is a 3-pole circuit breaker specifically designed for transformer protection, with an adjustable current setting range of 5.5 to 8 A. Its instantaneous short-circuit release trips at 13 times the rated current, providing fast response to fault conditions.

Overview

Part of the SIRIUS 3RV2 series, this breaker is engineered for reliable protection in industrial applications. It features screw terminals and can be mounted on a DIN rail or directly with screws. The rated operational voltage is up to 690 V AC, with an insulation voltage of 690 V and impulse withstand voltage of 6 kV. The device has an IP20 degree of protection and operates in ambient temperatures from -20 to +60 °C. Both electrical and mechanical service life are rated at 100,000 switching cycles.

What stands out

• Adjustable current setting: 5.5–8 A for precise transformer protection
• High short-circuit breaking capacity: 100 kA at 400 V AC
• Instantaneous magnetic trip at 13 x rated current
• Compact 3-pole design for space-saving installation
• DIN rail or screw mounting for flexible integration

Technical details

• Series: SIRIUS 3RV2
• Product type: Circuit breaker for transformer protection
• Number of poles: 3
• Rated current setting range: 5.5–8 A
• Short-circuit release setting: 13 x Ie
• Rated operational voltage: up to 690 V AC
• Rated insulation voltage: 690 V
• Rated impulse withstand voltage: 6 kV
• Short-circuit breaking capacity at 400 V AC: 100 kA
• Short-circuit breaking capacity at 690 V AC: 3 kA
• Mounting type: DIN rail / screw mounting
• Connection type: Screw terminals
• Degree of protection: IP20
• Ambient operating temperature: -20 to +60 °C
• Electrical service life: 100,000 switching cycles
• Mechanical service life: 100,000 switching cycles
• Overload protection: No (only short-circuit protection)
• Magnetic short-circuit release: Yes

Our verdict

With its high breaking capacity and precise adjustment, the 3RV2411-1HA1 is a solid choice for transformer protection in demanding industrial environments.