MK Sentry Consumer Units provide fast, stress free installation including backed out captive screws and multiple extra-large knockouts providing plenty of room for fast, neat wiring. Perfect for saving time on site. Housed within a sturdy steel, corrosion proof exterior providing long-lasting protection from accidental damage or contact. The housing provides excellent protection against the risk of fire, finished in low smoke and fume paint, alongside a top hinged door which prevents the unit from being left open after usage, avoiding a potential fire risk.