Siemens 5SY4316-8 Interruttore automatico 16 A 3 poli D 6 kA

With a rated switching capacity of 6 kA and D tripping characteristic, this Siemens 5SY4316-8 miniature circuit breaker handles high inrush currents from motors and transformers while protecting circuits up to 16 A.

Overview

The Siemens 5SY4316-8 is a 3-pole miniature circuit breaker (MCB) with a rated current of 16 A and D tripping characteristic. It is designed for DIN rail mounting and operates at 400 V AC, 50/60 Hz. The breaker provides reliable protection against overloads and short circuits in industrial and commercial installations.

What stands out

• 3-pole design for three-phase circuits
• D characteristic for high inrush current applications
• 6 kA breaking capacity for robust short-circuit protection
• Compact 3 TE width (54 mm) for space-saving installation
• Wide operating temperature range from -25 to +45 °C

Technical details

• Rated current: 16 A
• Number of poles: 3
• Tripping characteristic: D
• Rated voltage: 400 V AC
• Frequency: 50/60 Hz
• Rated switching capacity: 6 kA
• Mounting: DIN rail (EN 60715)
• Terminal capacity: 0.75 - 35 mm² (solid), 0.75 - 25 mm² (stranded)
• Mechanical service life: 10,000 cycles
• Electrical service life: 10,000 cycles
• Pollution degree: 3
• Overvoltage category: III
• Energy limiting class: 3

Our verdict

A reliable 3-pole MCB for industrial applications requiring D characteristic and 6 kA breaking capacity. Its compact size and wide temperature range make it suitable for various panel installations.