Fast Delivery
Expert Support

16A B Curve Type A 2P RCBO (NB310L-2P-B16)

The NB310L-2P-B16 is a 16 A two-pole RCBO with B curve and Type A residual current detection, combining overload, short-circuit and earth leakage protection in a single compact unit for safe, efficient circuit protection.

Complete Protection in One Device – Offers combined overcurrent and residual current safety without needing separate MCB and RCD. Ideal for Modern Electrical Circuits – Type A detection guards against AC and pulsating DC leakage, perfect for homes and light commercial circuits with electronic loads. Reliable Overload Response – B curve characteristic delivers effective protection with reduced risk of false tripping. Compact and Easy to Install – Standard DIN-rail mounting means quick fitting in consumer units and distribution boards. Trusted Quality from CHINT – Part of the NB310L series built to recognised safety standards, offering peace of mind and long-term performance.
£49.54
or pay interest-free installments
Klarna
PayPal
Add to Wishlist
SKU: NB310L-2P-B16
IN STOCK
Receive between -
Product Details

The 16A B Curve Type A 2P RCBO (SKU: NB310L-2P-B16) is a compact, high-performance circuit protector designed for modern electrical installations. It combines the safety of a Residual Current Device (RCD) with the overload and short-circuit protection of a Miniature Circuit Breaker (MCB) in one device. This two-pole RCBO offers dependable protection for circuits up to 16 amps, making it ideal for residential, commercial and light industrial use.

Built with a B characteristic curve, it responds quickly to overcurrent events caused by overloads and short circuits without nuisance tripping on moderate inrush currents. The Type A residual current detection senses both AC and pulsating DC fault currents for enhanced protection, particularly where electronic devices and modern appliances are used.

This RCBO fits neatly on standard 35 mm DIN rail panels and occupies just two modules width, making it a space-efficient choice for distribution boards and control panels. It is engineered to meet or exceed safety standards, delivering reliable earth leakage protection and helping to reduce the risk of fire and electric shock.

With an approximate 30 mA residual current sensitivity and robust 6 kA breaking capacity, this unit is built to protect both equipment and people. Whether you are installing a new consumer unit or upgrading existing circuits, the NB310L-2P-B16 offers trusted performance at a competitive price.

Product Specifications

Electrical Specifications

  • Rated Current (In): 16A
  • Number of Poles: 2P
  • Tripping Curve: B Curve (3-5 In)
  • Residual Current Type: Type A
  • Rated Sensitivity (IΔn): 30mA (0.03A)
  • Rated Voltage (Ue): 230V / 240V AC
  • Rated Frequency: 50/60Hz
  • Rated Short-circuit Capacity (Icn): 6,000A (6kA)
  • Rated Residual Making and Breaking Capacity (IΔm): 3,000A
  • Insulation Voltage (Ui): 500V
  • Rated Impulse Withstand Voltage (Uimp): 4,000V (4kV)
  • Break Time under IΔn: ≤ 0.1s
  • Release Type: Thermo-magnetic

Mechanical & Installation Data

  • Mounting: 35mm DIN Rail (EN 60715) via fast clip device
  • Terminal Connection Type: Cable / U-type busbar / Pin-type busbar
  • Terminal Size (Cable): Up to 25mm² (18-3 AWG)
  • Terminal Size (Busbar): Up to 10mm² (18-8 AWG)
  • Tightening Torque: 2.0 N·m (18 In-lbs)
  • Connection Direction: From top and bottom
  • Electrical Life: 2,000 operations
  • Mechanical Life: 2,000 operations
  • Protection Degree: IP20
  • Contact Position Indicator: Yes
  • Pollution Degree: 2

Environmental Specifications

  • Ambient Operating Temperature: -5°C to +40°C (Daily average ≤ 35°C)
  • Storage Temperature: -25°C to +70°C
  • Reference Temperature for Tripping: 30°C

Dimensions

  • Width: 36mm (2 modules)
  • Height: 86mm
  • Overall Depth: 77.1mm

Key Features

  • Comprehensive Protection: Provides dual-function safety by protecting cables and lines against overloads and short circuits while simultaneously offering personnel protection against direct contact.
  • Type A Versatility: Specifically designed to ensure tripping for sinusoidal alternating residual currents and pulsed DC residual currents, common in modern electronic environments.
  • B-Curve Performance: Optimized for the protection of people and long cable lengths in TN and IT systems where low inrush currents are expected.
  • Visual Status Monitoring: Includes an integrated contact position indicator for clear visual confirmation of the device status.

Standards & Compliance

  • Primary Standard: IEC/EN 61009-1
  • Certification: CE Marked, KEMA-KEUR Verified

Shipping & Collection

Tracked Delivery (Currently 1-3 business days):

  • Free over £250.
  • £5.99 for orders under £250.
  • £5.99 for orders under £50.

Next Business Day Delivery:

  • £15 Flat Rate.

Collection:

  • Free to collect from our warehouse.

Pre-Order:

  • 5-10 Business Days delivery unless otherwise stated.

Shipping Policy

Datasheets
16A B Curve Type A 2P RCBO (NB310L-2P-B16) - Data Sheet
Ask The AI About This Product

Looking for something Bespoke?

As a leading UK Victron Distributor and the Official UK Pytes Distributor our in house engineering team can deliver bespoke solutions. We handle design, specification, and system optimisation to meet your specific needs, regardless of size, weight, environmental, or regulatory constraints. From DIY projects up to large scale commercial projects our team can do it all.

Talk To An Engineer