Circuit Protection

Circuit Protection by Brand (1883)

Circuit Protection Devices (1052)

SPD Surge Protection Devices (125)

Three Phase Distribution Boards (93)

Switch Fuses - Isolators (175)

Street Lighting Circuit Protection (13)

Niglon EDB10 10-Way Earth Busbar 400A

SKU: EDB10

£73.62

Niglon EDB10-8 10-Way Earth Busbar 800A

SKU: EDB10-8

£97.05

Niglon EDB6 6-Way Earth Busbar 400A

SKU: EDB6

£51.55

Niglon EDB6-8 6-Way Earth Busbar 800A

SKU: EDB6-8

£71.50

Niglon CF55145 19W Panel Fan with Filter

SKU: CF55145

£21.71

Niglon CF55250 36W Panel Fan with Filter

SKU: CF55250

£33.10

Niglon CF55320 65W Panel Fan with Filter

SKU: CF55320

£48.89

Niglon CH100W 100W Passive Panel Heater

SKU: CH100W

£19.58

Niglon CH150W 150W Passive Panel Heater

SKU: CH150W

£25.30

Niglon CH15W 15W Passive Panel Heater

SKU: CH15W

£12.07

Niglon CH250 Compact 250W Panel Fan Heater

SKU: CH250

£67.84

Niglon CH350 Compact 350W Panel Fan Heater

SKU: CH350

£79.14

Niglon CT60DUAL Panel Thermostat

SKU: CT60DUAL

£11.20

Niglon CT60HYD Panel Thermostat with Humidistat

SKU: CT60HYD

£27.36

Niglon CT60NO Panel Thermostat

SKU: CT60NO

£8.90

Niglon BBC2024 200A Busbar Chamber

SKU: BBC2024

£912.60

Niglon BBC4034 400A Busbar Chamber

SKU: BBC4034

£1,079.00

Niglon M3CU8SP 100A DP Main Switch SPD Consumer Unit, 4 Usable Ways, Ideal for RCBO Setup, BS7671:2018 Compliant, 18th Edition Consumer Unit.

Niglon M3CU8SP 100A DP 4 Way Main Switch SPD Consumer Unit

SKU: M3CU8SP

£54.49

Niglon M3CU16SP – 100A DP SPD Consumer Unit, 12 Usable Ways, RCBO Compatible.

Niglon M3CU16SP 100A DP Main Switch 12 Way SPD Consumer Unit

SKU: M3CU16SP

£75.99

Niglon M3CU18SP 100A DP Main Switch Type 2 SPD Consumer Unit, 14 Usable Ways, Ideal for RCBO Setup, BS7671:2018 Compliant, 18th Edition Consumer Unit.

Niglon M3CU18SP 100A DP Main Switch 14 Way SPD Consumer Unit

SKU: M3CU18SP

£73.97

Showing 1741–1760 of 2331 results

Circuit Breakers: Circuit breakers are essential devices for protecting electrical circuits. BS 7671 specifies requirements for the selection and installation of circuit breakers. They come in various types, including:
- Miniature Circuit Breakers (MCBs): MCBs are commonly used to protect individual circuits. They trip when there’s an overload or a short circuit.
- Residual Current Devices (RCDs): RCDs are designed to protect against electric shock. They disconnect the circuit if they detect an imbalance in current, indicating a fault.
- Combination RCD/MCB Devices: These devices combine the functions of both MCBs and RCDs in a single unit. They are often used for socket outlets.
Fuses: While less common in modern installations, fuses may still be used for circuit protection. They work by melting when there’s an excess current, breaking the circuit.
Overcurrent Protection: BS 7671 requires that circuits are protected against overcurrents. This is typically achieved through the use of circuit breakers, fuses, or other protective devices.
Earthing and Bonding: Proper earthing and bonding are essential for safety. This ensures that in the event of a fault, the fault current is safely directed away from people and property.
Surge Protection: Surge protection devices may be required to protect against voltage surges or lightning strikes, especially for sensitive electronic equipment.
Arc Fault Detection: In certain installations, arc fault detection devices may be used to detect and disconnect circuits in the presence of dangerous arc faults.
Circuit Isolation: BS 7671 also specifies requirements for circuit isolation devices such as switches and isolators.
Cable Sizing: The standard provides guidelines for selecting the correct cable size to ensure that the cables can safely carry the intended load without overheating.
Circuit Labels and Documentation: Proper labeling and documentation of circuits are important for maintenance and safety. BS 7671 outlines requirements for labeling and record-keeping.

It’s important to note that regulations and standards may be updated over time, so it’s essential to consult the latest version of BS 7671 and any local regulations or codes that may apply to your specific location or type of installation. Additionally, electrical work should be carried out by qualified and competent electricians to ensure compliance with safety standards.