Polypipe PB00402 Polyplumb 4-Wire UFH Valve Actuator 230V Normally Closed with End Switch Feedback for Underfloor Heating Manifolds

The Polypipe PB00402 Polyplumb 4-Wire UFH Valve Actuator 230V Normally Closed is a premium electrothermal actuator with built-in end-switch feedback, designed for Polypipe underfloor heating manifolds where valve status monitoring is required.

Product Description

The Polypipe PB00402 is a 230V normally closed (NC) thermal actuator with an additional 2-wire end-switch for open/closed feedback. It features the same reliable PTC wax element and first-open function as the 2-wire version, but adds a micro-switch that provides a volt-free signal when the valve is fully open. This makes it ideal for systems with wiring centres that require valve status confirmation or for integration with advanced controls and BMS.

Key Features

• 4-Wire Configuration: Live, Neutral + 2-wire volt-free end switch for open/closed feedback.
• Normally Closed (NC): Opens when powered.
• First-Open function: Automatically opens during commissioning for easy filling.
• Visual status indicator: Clear all-round display shows power and valve position.
• M30 x 1.5 thread: Direct fit for all Polypipe manifolds.
• Low power consumption: 1 W operating.
• IP54 rated: Protected against dust and water splashes.
• Snap-on installation: Quick and secure 360° positioning.

Technical Specifications

• Model: PB00402 – Polyplumb 4-Wire Valve Actuator.
• Voltage: 230 V AC, 50/60 Hz.
• Power consumption: 1 W (operating).
• Stroke: 4.0 mm.
• Actuating force: 100 N (±10%).
• Opening/closing time: Approx. 3.5 minutes.
• Thread connection: M30 x 1.5.
• Protection rating: IP54.
• Protection class: Class II.
• End switch: Volt-free (SPST) – rated 5 A @ 250 V AC.
• Cable length: 1 metre (4-core pre-wired).

Dimensions & Weights

• Height: 55 mm (approx.).
• Diameter: 45 mm.
• Weight: 110 g (including cable).

System & Application Notes

• Specifically designed for Polypipe underfloor heating manifolds.
• Ideal when valve status feedback is required (e.g. wiring centres with LED indicators or BMS).
• Compatible with all standard M30 x 1.5 manifold valves.
• Works with Polypipe 230V room thermostats and wiring centres.
• Professional installation recommended.
• 5-year manufacturer warranty (subject to terms).