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Fusebox MT06B161 16A Single Pole B-Curve 6kA MCB (Miniature Circuit Breaker)

Model No. MT06B161 by: Fusebox
Availability: Usually 2 - 3 Days

£2.50

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(over £100+VAT, applies to zone A only , £6 +VAT otherwise)
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This is the Fusebox MT06B161 16A Single Pole B-Curve 6kA Miniature Circuit Breaker – Reliable Overcurrent Protection available at SparksDirect.co.uk for the best price.

The Fusebox MT06B161 is a Single Pole miniature circuit breaker (MCB) engineered to protect electrical circuits from overload and short-circuit faults in consumer units and distribution boards. It forms part of the Fusebox MT06 B-Curve range, which is widely used in domestic and light commercial electrical systems where dependable protection and compliance with wiring regulations are essential.

Operating with a Type B tripping characteristic, this circuit breaker is designed to trip when current significantly exceeds the rated value (roughly 3–5 times the rated current), making it ideal for protecting lighting circuits, socket circuits, and other standard loads with moderate inrush currents.

The MT06B161 mounts on a standard 35mm DIN rail, allowing straightforward installation in Fusebox consumer units or compatible panels. When an over-current condition is detected, it automatically disconnects the circuit, helping to prevent electrical fires and equipment damage. Once the fault is cleared, the breaker can be manually reset — a distinct advantage over traditional fuse protection.

Designed and manufactured to meet recognised safety standards, it complies with IEC/EN 60898-1 and the UK’s 18th Edition wiring regulations when installed correctly, ensuring both performance and regulatory alignment.

Features and Benefits

  • Rated Current: 16A — suitable for typical lighting and small power circuits.
  • Type B tripping curve — rapid response to overloads with moderate inrush currents.
  • 6kA breaking capacity — robust short-circuit interruption capability.
  • Thermal-magnetic trip mechanism — protects against sustained overload and instantaneous short circuits.
  • DIN-rail mounting — installs quickly and securely on standard consumer unit rails.
  • Compact single-module design — saves space inside consumer units.
  • IP20 rating (finger-safe) — ensures basic protection from accidental contact.
  • Compliant with safety standards — meets IEC/EN 60898-1 and UK wiring regulations.

Technical Specifications

  • Product Code: MT06B161
  • Device Type: Miniature Circuit Breaker (MCB)
  • Tripping Characteristic (Curve): B Curve (Type B)
  • Rated Current: 16A
  • Rated Voltage (Un): 230V AC
  • Frequency: 50–60 Hz
  • Rated Breaking Capacity: 6kA (6000A)
  • Number of Poles: 1 Pole (1P)
  • Mounting: 35mm DIN rail
  • Terminal Capacity: Up to 16mm²
  • Recommended Tightening Torque: 2.5 Nm
  • Mechanical Endurance: 10 000 operations
  • Protection Rating: IP20 (finger-safe)
  • Material: PA6 (nylon housing)
  • Standards Compliance: IEC/EN 60898-1, 18th Edition wiring regs compliant
  • Dimensions: 83mm (height) x 17.6mm (width) x 69.6mm (depth)
  • Weight: 0.12kg

Three Reasons Customers Recommend This

  1. Reliable protection for standard circuits — ideal for lighting and general power circuits in homes and commercial settings.
  2. Easy DIN-rail installation — fits into standard distribution boards and consumer units quickly.
  3. High value and compliance — affordable, meets regulatory standards and offers good performance for everyday use.

Who Needs It

  • Electricians and electrical installers specifying circuit protection in domestic and small commercial boards.
  • Maintenance teams replacing or upgrading circuit protection components.
  • Homeowners with basic electrical knowledge seeking compliant circuit protection (when fitted by a qualified person).

Who Can Install It

  • Qualified electricians or competent persons familiar with consumer unit wiring and UK wiring regulations.
  • Not recommended for novice DIY — internal panel work should be done with power isolated and by someone competent due to safety requirements.

Note: Some images and pictures are for reference only. The item may differ from the image/picture due to manufacturer's change. Should you require the exact item in the picture, please call or email us to enquire.

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Shipping

Sparks Direct delivers via courier to the UK only; the standard delivery charge is £6 + VAT for all orders under £100 + VAT. If your order is over £120, you get free delivery (unless there's a special delivery charge for the items you wish to order or you're in shipping zone C or D). Full details for shipping charges can be found via Terms and Conditions.

If the items you order are in stock and the order is placed before 1.00pm, delivery can be made within 1-2 working days. If the items are not in stock, we will inform you via email how long it will take or ask for your confirmation if there's a long lead time.

Returns

We offer 30-day returns for unwanted items - please email us to request a returns number which will need to be quoted when the items are returned. For faulty items or items damaged in transit, please advise via email, and an appropriate returns number will be provided. Full details concerning returns and refunds can be found via our Terms and Conditions.

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