Siemens SENTRON Miniature Circuit Breaker 63A, 3-Pole, C Curve, 10kA – 5SL4363-7RCZ16

Product Description

The Siemens 5SL4363-7RCZ16 is a SENTRON Miniature Circuit Breaker (MCB) designed for reliable overload and short-circuit protection in AC electrical distribution systems. It features a 63 A rated current, 3-pole configuration, C tripping characteristic, and 10 kA breaking capacity, making it suitable for three-phase industrial, commercial, and infrastructure applications. Siemens documentation confirms the corresponding 5SL4363-7RC model specifications.

The MCB is designed for 415 V AC, 50/60 Hz operation, with a maximum multi-phase operating voltage of 440 V AC. It provides 10 kA breaking capacity, energy limitation Class 3, and IP20 protection with connected conductors. Its typical mechanical service life is 10,000 operating cycles.

Key Features

• Brand: Siemens
• Series: SENTRON 5SL
• Type: Miniature Circuit Breaker (MCB)
• Model: 5SL4363-7RCZ16
• Rated Current: 63 A
• Number of Poles: 3-Pole (3P)
• Tripping Characteristic: C Curve
• Breaking Capacity: 10 kA
• Rated Supply Voltage: 415 V AC
• Frequency: 50/60 Hz
• Maximum Multi-Phase Operating Voltage: 440 V AC
• Energy Limiting Class: 3
• Protection: Overload and short-circuit protection
• Protection Rating: IP20 with connected conductors
• Typical Mechanical Life: 10,000 operating cycles

Applications

• Industrial distribution panels
• Three-phase electrical distribution
• Commercial distribution boards
• Industrial control panels
• Machinery and OEM panels
• HVAC systems
• Building electrical installations
• General AC circuit protection

Benefits

• Reliable overload and short-circuit protection
• High 10 kA breaking capacity
• 3-pole configuration for three-phase circuits
• C-curve characteristic for circuits with moderate inrush currents
• Compact design for modular distribution systems
• Suitable for industrial and commercial applications
• Reliable Siemens SENTRON performance

Frequently Asked Questions

Q1. What is Siemens 5SL4363-7RCZ16?

It is a Siemens SENTRON Miniature Circuit Breaker with a 63 A rating, 3 poles, C-curve tripping characteristic, and 10 kA breaking capacity.

Q2. What is the rated current?

The MCB has a 63 A rated current at 30°C. Siemens specifies reduced operational-current values at higher ambient temperatures.

Q3. What does the C curve mean?

The C tripping characteristic is generally suitable for circuits where connected equipment can produce moderate starting or inrush currents, including various industrial loads.

Q4. What is the breaking capacity?

The corresponding 5SL4363-7 model has a 10 kA breaking capacity according to EN 60898 and IEC 60947-2.

Q5. Where can this 63A MCB be used?

The 5SL4363-7RCZ16 is suitable for three-phase distribution boards, industrial control panels, machinery, commercial electrical installations, and AC power distribution circuits where a 63 A, 3-pole C-curve MCB is appropriate.