Tesla TPS300 Plug-In Immersion Heater Thermostat 11 inch 65 75 Degree 20A Dual Function

Description

The Tesla TPS300 is a genuine manufacturer plug-in type thermostat, designed as an alternative to a traditional screw-in rod thermostat for cylinders using a push-fit thermostat connection. It is suitable for use with either the upper or lower immersion heater position on unvented cylinders.

The TPS300 provides dual function operation with an adjustable working temperature and a separate fixed safety cut-out, and is CE marked for full compliance with UK and European electrical safety standards.

11"

Stem Length

Plug-In

Connection Type

10-65°C

Adjustable Range

75°C

Safety Cut-Out

20A

Current Rating

CE

Marked

Please Note: The TPS300 is a plug-in type thermostat and is not interchangeable with the screw-in rod thermostats (TS220/TS225/TS230). Confirm your cylinder uses a push-fit thermostat connection before ordering.

Plug-In Design for Push-Fit Connections

Unlike the TS-series rod thermostats, the TPS300 uses a plug-in connection, designed for cylinders that take a push-fit thermostat rather than a threaded pocket.

Dual Function Operation

Combines an adjustable working temperature (10°C to 65°C) with a separate, fixed 75°C safety cut-out, giving independent primary and secondary temperature control.

Suitable for Upper or Lower Immersion Positions

Designed for use with either the upper or lower immersion heater on unvented cylinders, offering flexible positioning depending on the cylinder configuration.

Higher Current Rating

Rated at 20A, higher than the 15A rating of the TS-series rod thermostats, suiting cylinders and controllers that require the additional switching capacity.

CE Marked

Fully CE marked, confirming compliance with UK and European electrical safety requirements for this class of product.

General Specification
Manufacturer	Tesla UK Ltd, Sutton Coldfield, West Midlands
MPN	TPS300
Type	Plug-in dual function thermostat
Stem Length	11"
Adjustable Range	10°C to 65°C
Safety Cut-Out Temperature	75°C
Current Rating	20A
Voltage	240V AC
Certification	CE marked
Cylinder Compatibility	Suitable for upper or lower immersion heater positions on unvented cylinders

Important Safety Information: This is a mains-voltage electrical replacement part. Thermostat replacement work must only be carried out with the power isolated at the mains and, after installation, the wiring must be tested by a registered electrician or Part P competent person. The immersion heater must be fully immersed in water before power is reapplied.

What is the difference between the TPS300 and the TS-series rod thermostats?

The TPS300 uses a plug-in connection designed for cylinders with a push-fit thermostat fitting, whereas TS220/TS225/TS230 are screw-in rod thermostats for threaded thermostat pockets. The two types are not interchangeable.

Can the TPS300 be used on either the upper or lower immersion heater?

Yes, the TPS300 is designed to be suitable for use with upper or lower immersion heaters on unvented cylinders.

What does "dual function" mean for this thermostat?

Dual function means the TPS300 provides two separate temperature controls: an adjustable working temperature (10-65°C) for day-to-day use, and a fixed 75°C safety cut-out as a secondary protection.

Why is the TPS300 rated at 20A rather than 15A?

The TPS300 is designed with a higher 20A current rating to suit cylinders and controllers, such as those used with off-peak/Economy 7 switching, that require additional switching capacity beyond the standard 15A rod thermostats.

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