The Schneider Electric Easy9 EZ9F53163 Miniature Circuit Breaker (MCB) is a dependable 1-pole thermal-magnetic circuit breaker designed to provide effective protection against overloads and short circuits in low-voltage AC electrical installations. Rated at 63A with a 3kA breaking capacity, it is ideal for residential, commercial, and light industrial distribution boards requiring reliable circuit protection.
Part of the trusted Schneider Electric Easy9 range, the EZ9F53163 features a C-curve tripping characteristic, making it suitable for circuits with moderate inrush currents, including lighting systems, socket outlets, distribution circuits, small motors, pumps, and other general-purpose electrical loads. The thermal-magnetic trip mechanism ensures accurate overload protection while providing rapid disconnection during short-circuit faults.
With a 3kA rated breaking capacity (Icu) at 230VAC, the breaker complies with SANS 60947-2 for safe and reliable operation. It also features a 500V insulation voltage (Ui), 4kV impulse withstand voltage (Uimp), and Limitation Class 3, ensuring dependable performance in demanding electrical environments.
The compact 18mm-wide DIN rail mountable design enables quick installation into modern distribution boards while saving valuable panel space. A built-in contact position indicator provides a clear visual indication of the breaker status, and the robust tunnel-type terminals accept conductors from 1mm to 35mm for flexible installation. Designed for durability, the EZ9F53163 offers up to 10,000 mechanical operations and 4,000 electrical operating cycles.
Manufactured by Schneider Electric, the Easy9 EZ9F53163 delivers long-lasting performance and dependable protection for everyday electrical installations.
Features
Genuine Schneider Electric Easy9 miniature circuit breaker
1-pole thermal-magnetic protection
63A rated current
C-curve tripping characteristic
3kA short-circuit breaking capacity
Protects against overloads and short circuits
Suitable for circuit isolation
Contact position indicator
Compact DIN rail mounting
Tunnel-type terminals for easy wiring
Long mechanical and electrical service life
Complies with SANS 60947-2
Specifications
Part Number: EZ9F53163
Manufacturer: Schneider Electric
Series: Easy9
Product Type: Miniature Circuit Breaker (MCB)
Number of Poles: 1P
Protected Poles: 1
Rated Current (In): 63A
Rated Operational Voltage (Ue): 230VAC, 50/60Hz
Network Type: AC
Trip Technology: Thermal-Magnetic
Trip Curve: C Curve
Breaking Capacity (Icu): 3kA at 230VAC
Service Breaking Capacity (Ics): 3kA (100% of Icu)
Rated Insulation Voltage (Ui): 500VAC
Impulse Withstand Voltage (Uimp): 4kV
Magnetic Tripping Limit: 8.5 × In 20%
Limitation Class: 3
Utilisation Category: Category A
Isolation Function: Yes
Mounting: 35mm DIN Rail (Clip-On)
Terminal Type: Tunnel Type (Top or Bottom)
Cable Capacity: 1-35mm (Rigid/Flexible)
Terminal Tightening Torque: 3.5N m
Protection Rating: IP20
Operating Temperature: -5 C to +60 C
Storage Temperature: -40 C to +85 C
Dimensions (H × W × D): 81 × 18 × 66.5mm
Weight: 0.105kg
Colour: Grey (RAL 7035)
Mechanical Durability: 10,000 operations
Electrical Durability: 4,000 operations
Compliance: SANS 60947-2, CE, IEC 60529
Applications
Residential distribution boards
Commercial electrical installations
Main distribution circuits
High-current branch circuits
Lighting and socket outlet circuits
Pumps and small motor protection
Industrial control panels
OEM electrical equipment
Building electrical infrastructure
Low-voltage AC power distribution
What's in the box
1 x Schneider Easy9 EZ9F53163 1 Pole 63A C Curve MCB 3kA Circuit Breaker
