Siemens 3RV2811-4AD10 SIRIUS Circuit Breaker Transformer Protection 15 A 3-Pole

The Siemens 3RV2811-4AD10 is a SIRIUS 3RV2 circuit breaker for transformer protection in the size S00 frame. It is a UL 489 / CSA C22.2 No. 5 listed device with a fixed 15 A thermal overload release and a fixed magnetic short-circuit release at 286 A. The three-pole breaker also provides disconnector functionality and has a finger-safe IP20 front for use in distribution and control assemblies.

Technical specifications

• Type: SIRIUS 3RV2 circuit breaker for transformer protection, frame size S00
• Approvals: UL 489, CSA C22.2 No. 5-02
• Poles: 3
• Rated current In: 15 A (fixed thermal overload release)
• Magnetic short-circuit release: 286 A (fixed)
• Operational current at AC-3, 400 V: 16 A / 7.5 kW
• Rated insulation voltage Ui: 690 V
• Rated impulse withstand voltage Uimp: 6 kV
• Frequency: 50/60 Hz
• Breaking capacity Icu: 100 kA at 240 V, 55 kA at 400 V, 10 kA at 500 V, 4 kA at 690 V; 65 kA at 480Y/277 V per UL 489
• Service breaking capacity Ics: 100 / 30 / 5 / 2 kA at 240 / 400 / 500 / 690 V
• Degree of protection: IP20 at the front, IP00 at the terminals (finger-safe)
• Connection: screw terminals, top and bottom; 1-10 mm² solid/stranded, 1-16 mm² fine-stranded, AWG 14-10; M4, Pozidriv 2, torque 2.5-3 N·m
• Mounting: 35 mm DIN rail to DIN EN 60715
• Dimensions (H x W x D): 144 x 45 x 97 mm
• Net weight: 500 g
• Power loss: 9.25 W total, 3.1 W per pole
• Ambient temperature: -20 °C to +60 °C
• Mechanical service life: 100,000 operating cycles

Features

Combines transformer-circuit protection with a disconnector function in one device and accepts an optional auxiliary switch (no auxiliary contacts are built in). Screw terminals allow top or bottom feed and the finger-safe IP20 front suits standard control and distribution cabinets.