Danfoss TWA-V electrothermal actuator, 24 V AC, normally open (088H3121)

Part Number
088H3121 · HS 8481.90

Danfoss TWA-V electrothermal (thermal-wax) valve actuator, OEM order code 088H3121. The TWA-V converts a switching signal from a room thermostat or controller into valve movement on hydronic floor-heating manifolds and radiator/zone valves — no auxiliary air or hydraulics. Normally open (NO) — the valve is open when de-energised and closes when the actuator is powered. Supply voltage 24 V AC (50/60 Hz), power consumption 2 W. RAV / VMT connection; fits Danfoss RAV and VMT valve bodies. 0.95 m connecting cable. Enclosure rating IP41. Net weight 0.145 Kilogram. Genuine Danfoss part; technical data quoted verbatim from store.danfoss.com (code 088H3121). OEM P/N 088H3121, EAN 5702420050188.

Technical Specifications

Brand

Danfoss

Part number

088H3121

Type

TWA-V

Product group

Thermal actuators

Description

TWA-V NO 24V

Actuator principle

Electrothermal (thermal wax element)

Valve function

End-switch

Supply voltage

24 V AC

Frequency range

50 Hz – 60 Hz

Power consumption

2 W

Connection

RAV / VMT

Connection type

RAV

Cable length

0.95 m

IP protection class

IP41

REACH candidate-list substances

Lead (CAS no. 7439-92-1)

Net weight

0.145 Kilogram

Gross weight

0.15 Kilogram

EAN

5702420050188

HS code

8481.90 (parts of taps, cocks, valves and similar appliances)

Compatibility

Electrothermal actuator for Danfoss RAV and VMT valve bodies. Signalled by a 24 V or 230 V AC room-thermostat/controller output — match the supply voltage (24 V AC) and valve function (normally open) to the control system. Confirm the valve connection (RAV / VMT) against the manifold or valve body before ordering.

Material	Polyamide housing
IP rating	IP41
MOQ	1

Danfoss TWA-V electrothermal actuator, 24 V AC, normally open (088H3121)

Technical Specifications

Properties

Compatibility

Attached Documents