Hager NF MCB 3P 10–63 A C-Curve 10 kA | Miniature Circuit Breaker Range

The Hager NF is a 3P 10–63 A C-curve miniature circuit breaker with 10 kA breaking capacity. It protects cables and connected equipment against overload and short circuit in three-phase circuits, motors and sub-distribution feeders, and clips onto a standard 35 mm DIN rail in apartment, villa, commercial and industrial distribution boards. This listing covers several current ratings – choose the rating that matches your cable size.

Key features

• C-curve characteristic suited to general loads such as lighting, sockets, air conditioners and small motors (magnetic trip at 5–10 × In)
• 3P construction for three-phase circuits, motors and sub-distribution feeders
• Breaking capacity 10 kA for safe disconnection of short-circuit currents
• Clear ON/OFF handle with contact position indication for safe isolation
• Quick clip-on mounting on 35 mm DIN rail, compatible with standard pin/fork busbars
• Compact modular width for neat, standardised distribution boards

Technical specifications

Available versions

Current Rating: 10 A, 16 A, 20 A, 25 A, 32 A, 40 A, 63 A.

Typical applications

• Apartment, villa and office distribution boards
• Lighting, socket-outlet and air-conditioning circuits
• Commercial buildings, shops, schools and hospitals
• Control panels, pump panels and HVAC panels
• Replacement of old or faulty breakers during maintenance

Selection and installation tips

Match the breaker rating to the cable cross-section (typically 10 A for 1.5 mm² lighting, 16–20 A for 2.5 mm² sockets, 25–32 A for 4–6 mm² air-conditioner lines), choose the curve according to the inrush current of the load, and make sure the breaking capacity exceeds the prospective short-circuit current at the board. Add an RCCB or use an RCBO for earth-leakage protection.

Frequently asked questions

What is the Hager NF used for?

It is a 3P 10–63 A C-curve MCB used to protect three-phase circuits, motors and sub-distribution feeders against overload and short circuit.

Does an MCB protect against electric shock?

No. An MCB protects cables against overload and short circuit only. For protection of people against earth leakage use a 30 mA RCCB upstream or an RCBO.

Which MCB rating do I need for an air conditioner?

As a guide, 1.5–2.25 HP split units usually use a 16–20 A C-curve MCB, 3 HP units 25 A and 4–5 HP units 32 A, always matched to the cable size recommended by the manufacturer.

Buy Hager NF in Egypt

Spark Egypt is a trusted source for original Hager products such as the NF miniature circuit breaker (MCB), serving contractors, OEMs, panel builders, facility managers and home owners with tax invoices and fast delivery to Cairo, Giza, New Cairo, 6th of October, Sheikh Zayed, the New Administrative Capital, Alexandria, the Delta, the Canal cities and Upper Egypt. Contact our sales team to confirm selection, compatible accessories and project pricing.