- Electrical Supplies & Accessories
- Power Distribution
- MCBs
- Altrion SP MCB B Curve
Altrion SP MCB B Curve 20A
by Altrion by NiglonProduct code: AH641

Altrion SP MCB B Curve 20A
by Altrion by NiglonProduct code: AH641
Related products
Product details
The full product line is rigorously tested and certified by Intertek and Semko, ensuring you can be confident in its quality and safety. Each module features a bi-directional design with single and double terminals, making it a flexible choice for your consumer unit.
• Available in a wide range of amperage ratings – including 6A, 16A, 20A, 25A, 32A, 40A, 50A and 63A
• B curve – suitable for standard domestic circuit protection
• 6kA rated – offers reliable breaking capacity for household applications
• Space saver – compact design allows for more room within the board
• False busbar engagement identification – provides visual confirmation of correct connection on the Live terminal
• Torque requirements printed on module – allows for quick and easy reference during installation
• Fully certified – designed and type tested to BS EN 60898 standards
Reviews★★★★★ ★★★★★
Technical specification
| Brand | Altrion by Niglon |
| Manufacturer ID | TMCB6B1-20 |
| Warranty (years) | 1 year |
| Energy class | N/A |
| Range Name | ALTRION |
| Colour | Light Grey |
| Height (mm) | 72mm |
| Length (mm) | 83mm |
| Width (mm) | 18mm |
| IP Rating | IP20 |
| Voltage | 240V |
| Pack contents | 1 x Altrion MCB SP B Curve 20A |
| Pack Size | 1 |
| Colour Family | Grey |
| Amp rating | 20A |
| Number of poles | 1 |
| Weight (g) | 110g |
Delivery details
Delivery (UK mainland only)
Next Day: £5, or FREE over £40
- Order by 9pm Mon-Thu: next working day
- Order Fri to 5pm Sun: Monday
- Order after 5pm Sun: Tuesday
Pre-12pm: £10
- Same cut-offs as Next Day above
Saturday & Sunday: £10, or £5 over £40, or FREE over £75
- Saturday: order by 6pm Fri
- Sunday: order by 4pm Sat
Heavy items (over 30kg)
- Mon-Fri only. Order by 6pm and allow up to two working days
- Order after 6pm Thu: arrives after the weekend
Supplier items
- Sent directly by the supplier, so timings vary. Lead times appear on the product page in working days (Mon-Fri)
Collection details
Next Business Day Collection (eligible items)
- Order by 9pm Mon-Thu: collect next day
- Order after 9pm Thu to 5pm Sun: collect Monday
- Heavy items (over 30kg): allow up to two working days
Opening hours
- Weekdays vary by branch: open 6:30am-7am, close 6pm-8pm
- Saturday: 7am-6pm
- Sunday: 9am-4pm
Check your local store's hours and that it's open before visiting. Please wait for our text or email before collecting.
Holding your order
We'll hold it for 14 days, then automatically refund your original payment method.
Pack size: Each
Selected:
Out of stock for delivery
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