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Belimo SRFA-S2-R fail-safe rotary actuator 20Nm

Belimo

Belimo SRFA-S2-R fail-safe rotary actuator 20Nm

20Nm fail-safe rotary valve actuator, AC/DC 24-230V, with spring return to closed on power loss.

At a glance

  • Also known as 7500239
Manufacturer part no.
SRFA-S2-R
Showing prices

£1,024.80

£854.00 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 working days
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 SRFA-S2-R is a fail-safe rotary actuator made by Belimo, designed as a RetroFIT+ replacement for driving rotary and butterfly valves. It runs on AC 24-240V or DC 24-125V, delivers 20Nm of torque, and springs the valve closed if power is interrupted.

Signs this part needs replacing

  • Actuator fails to drive the valve open or closed
  • Valve does not spring to its fail-safe position on power loss
  • Unusual noise or slow movement from the actuator motor
  • Auxiliary switch signals no longer register correctly

Before you order

  • Match the mounting flange and torque rating of your existing actuator
  • Confirm the supply voltage matches your control system
  • Isolate electrical power before removal
  • Have the replacement fitted by a competent controls engineer

Not sure which part?

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