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Hispec HSSA/RB surface mains relay base

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Hispec HSSA/RB surface mains relay base

Surface-mounted mains relay base from Hispec, used to trigger auxiliary devices from any Hispec HSSA detector.

At a glance

  • Also known as 8012789
Manufacturer part no.
HSSA/RB
Showing prices

£18.48

£15.40 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The HSSA/RB is a surface-mounted mains relay base from Hispec, used to trigger auxiliary devices such as door closers, external sounders or building management systems from any Hispec mains-powered smoke, heat or CO detector.

Signs this part needs replacing

  • Auxiliary device (e.g. door closer, sounder) no longer triggers when the linked detector alarms
  • Relay terminals show signs of arcing, corrosion or heat damage
  • Casing cracked or the base no longer seats securely on its mounting

Before you order

  • Isolate mains power before wiring or replacing the relay base
  • Confirm the auxiliary device's current draw is within the relay's rating
  • Check it is compatible with your existing Hispec detector model

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.