Description
The Eaton EAD40B is a high-performance 40A single-pole MCB designed to protect electrical circuits against overloads and short circuits in residential, commercial, and industrial distribution boards.
Featuring a Type B tripping curve, the EAD40B trips instantaneously at 3 to 5 times its rated current, making it ideal for domestic lighting, socket ring mains, electric showers, and general heating circuits with low inrush currents. Built to BS EN 60898 standards with a 6kA breaking capacity, it provides reliable protection and fits seamlessly into compatible Eaton distribution boards and consumer units.
Key Features & Benefits
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Type B Tripping Characteristic: Designed for general domestic and light commercial resistive loads and socket circuits.
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10kA Short-Circuit Capacity: High breaking capacity rated to BS EN 60898 for robust system protection.
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Standard DIN Rail Mounting: Fits quickly onto standard 35mm DIN rail layouts in consumer units and distribution boards.
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Thermal-Magnetic Tripping: Dual protection mechanism for both slow thermal overload and instantaneous short-circuit faults.
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Clear Switch Indication: Easy-to-read ON/OFF toggle position for rapid visual circuit status verification.
Specifications at a Glance
| Feature | Details |
| Manufacturer / Brand | Eaton |
| Part Code / MPN | EAD40B |
| Product Type | Miniature Circuit Breaker (MCB) |
| Number of Poles | Single Pole (1P / 1 Module) |
| Current Rating | 40 Amp |
| Tripping Curve | Type B (3 to 5 x In) |
| Short-Circuit Capacity | 6kA |
| Operating Voltage | 230V / 240V AC (50Hz) |
| Mounting Type | Standard 35mm DIN Rail Mount |
| Terminal Capacity | Up to 25mm² Rigid / Flexible Cable |
| Standards Compliance | BS EN 60898 |
