278527 FAZ-B4/1, Eaton xEffect MCB, 1P, 4A Curve B, 240V AC, 48V DC, 10 kA Breaking Capacity

Eaton Miniature Circuit Breakers (MCBs) - FAZ Series

The FAZ series of miniature circuit breakers (MCBs) from Eatons xEffect range has a current limiting design providing fast short-circuit interruption that reduces the let-through electrical energy and overload currents that can damage the circuit.

Ideally suited to control circuits and electrical distribution boards the FAZ series of MCBs offer a wide range of diverse protection characteristics, protecting your electrical equipment against overload damage. For additional safety, the MCB breaker cannot be defeated by holding the handle in the ON position, these MCBs are also finger proof and have a trip-free mechanism.

These MCBs have both a thermal and electromagnetic release, with rated currents of 0.16 A up to 63 A and a switching capacity of 15kA or 10kA depending on the device type.

The FAZ series includes miniature circuit breakers, interlocks, busbars and snap-on accessories including auxiliaries and tripping modules.

Features and Benefits

• Thermal-magnetic overcurrent protection
• Power to the miniature circuit breakers can be fed from the line or load side
• Clear indication of contact position via front switch toggle
• Easy installation on DIN rail. MCB module width of only 17.5 mm (per pole)
• Six levels of short-circuit protection, categorized by Type B, C, D, K, S and Z curves
• Small modular width of the device and accessories saves space in the panel or equipment, which can lead to cost savings
• Available in single pole up to 4 pole
• Dual rating for IEC 60947-2 standard
• MCB Module widths: 1P 17.5mm, 2P 35mm and 3P 52.5mm

Standards

IEC 898; BS/EN60-898; EN50 022/DIN46277-3 (BS5584).
FAZ-C*/* & FAZ-S*/* = IEC/EN60947-2

IEC 60947-2 Relates to Low Voltage Circuit Breakers for use in industrial and similar installations. In the UK these are traditionally known as miniature circuit breakers (MCBs), moulded case circuit breakers
(MCCBs) and also air circuit breakers (ACBs).

Standards

IEC 898; BS/EN60-898; EN50 022/DIN46277-3 (BS5584).
FAZ-C*/* & FAZ-S*/* = IEC/EN60947-2

Eaton Single-Pole MCB, 4A Current Rating, 10kA Breaking Capacity - FAZ Series - 278527 FAZ-B4/1

Features & Benefits

• Thermal and magnetic trip mechanism for overcurrent protection
• Modular design means it's easy to integrate with other safety devices and timers
• Red and green indicators on the front of the housing make it easy to read the device's status
• Circuit information printed on the MCB body to help reduce installation errors

How do I reset this MCB?

To keep people and circuits safe, this MCB won't let you simply override the fault by holding the toggle down. When the device trips, you'll need to identify and fix the problem. The MCB is then reset using the toggle switch on the front.

Note

Eaton formerly known as Moeller

FAZ Series

Datasheet - 278527 FAZ-B4/1