The Schneider Electric Easy9 EZ9F53250 Miniature Circuit Breaker (MCB) is a high-quality 2-pole thermal-magnetic circuit breaker designed to provide dependable protection against overloads and short circuits in low-voltage AC electrical installations. With a 50A rated current and 3kA breaking capacity, this MCB is ideal for residential, commercial, and light industrial distribution boards requiring reliable dual-pole protection and isolation.
Part of the trusted Schneider Electric Easy9 range, the EZ9F53250 features a C-curve tripping characteristic, making it suitable for circuits with moderate inrush currents, including lighting, socket outlets, HVAC systems, pumps, compressors, water heaters, and small motors. The thermal-magnetic trip mechanism ensures accurate overload protection while providing rapid disconnection during short-circuit conditions.
The breaker offers a 3kA rated breaking capacity (Icu) at 400VAC and complies with SANS 60947-2, delivering reliable protection for modern electrical installations. It also features a 500V rated insulation voltage (Ui), 4kV impulse withstand voltage (Uimp), and Limitation Class 3, providing enhanced insulation and protection against transient overvoltages.
Its compact 36mm-wide housing occupies 4 DIN modules and mounts easily onto a standard 35mm DIN rail using a clip-on mechanism. A built-in contact position indicator allows quick visual confirmation of the breaker status, while durable tunnel-type terminals support 1mm to 25mm rigid or flexible conductors for fast and secure wiring.
Engineered for durability, the Schneider Easy9 EZ9F53250 delivers 10,000 mechanical operations and 4,000 electrical operating cycles, making it a reliable solution for long-term circuit protection.
Features
Genuine Schneider Electric Easy9 miniature circuit breaker
2-pole thermal-magnetic protection
50A rated current
C-curve tripping characteristic
3kA short-circuit breaking capacity
Protects against overloads and short circuits
Simultaneous isolation of both poles
Suitable for AC distribution systems
Contact position indicator
Compact DIN rail clip-on mounting
Tunnel-type terminals for secure wiring
Long mechanical and electrical service life
Complies with SANS 60947-2
Specifications
Part Number: EZ9F53250
Manufacturer: Schneider Electric
Series: Easy9
Product Type: Miniature Circuit Breaker (MCB)
Number of Poles: 2P
Protected Poles: 2
Rated Current (In): 50A
Rated Operational Voltage (Ue): 400VAC, 50/60Hz
Network Type: AC
Trip Technology: Thermal-Magnetic
Trip Curve: C Curve
Breaking Capacity (Icu): 3kA at 400VAC
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: 1-25mm (Rigid/Flexible)
Terminal Tightening Torque: 2N m
Protection Rating: IP20
Dimensions (H × W × D): 81 × 36 × 66.5mm
Weight: 0.20kg
Colour: Grey (RAL 7035)
Mechanical Durability: 10,000 operations
Electrical Durability: 4,000 operations
Operating Temperature: -5 C to +60 C
Storage Temperature: -40 C to +85 C
Compliance: SANS 60947-2, CE, IEC 60529
Applications
Residential distribution boards
Commercial electrical installations
Two-pole AC circuit protection
Lighting circuits
Socket outlet circuits
Air conditioning systems
Water heaters and geysers
Pumps and compressors
Industrial control panels
Low-voltage AC power distribution
What's in the box
1 x Schneider Easy9 EZ9F53250 2 Pole 50A C Curve MCB 3kA Circuit Breaker
