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Home > Products by Brand > MK > RCDs

MK 7840s 40A 30mA Double Pole RCD

Rated current: 40 A
Tripping Time I X IAn: 300ms
Tripping Time 5 X IAn: 40ms
Rated operational voltage:       230 V
Number of modules: 2
Solid Stranded cable: 35mm²
Flexible with Ferrule: 35mm²
Tightening torque: 3Nm

All Sentry RCDs incorporate a filtering device to provide protection against transient surges in the supply to the unit, thus reducing the occurrence of unwanted tripping.

The operating dolly may be locked in either the ON or OFF position without affecting the ability of the trip mechanism to operate, i.e. the RCD is ' trip-free'. It is not possible to hold the contacts closed when a fault condition exists.

When in the OFF position a contact gap of 4mm is present, enabling MK Sentry RCDs to be used as isolating switches where appropriate.

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MK RCD 7840s 40A 30mA Double Pole Sentry Circuit Protection Device
£32.77 ex vat
£39.33 inc vat

We have over 21 years' experience in supplying electrical materials to both trade and end user customers.
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