ThermoSphere Contactor Snubber

The ThermoSphere Contactor Snubber is a high-current switching device designed to safely control large electric underfloor heating circuits from a single thermostat. Essential for heating systems exceeding 16A (3600W), this accessory protects thermostats from voltage spikes and electrical surges, ensuring long-lasting reliable performance. Available in 25A, 40A, and 63A capacities, it suits a range of heating system sizes in both domestic and commercial settings.

Key Features

• Multiple Load Capacities: Choose from 25A, 40A, or 63A to match your heating system load requirements.
• Ultimate Protection: Snubber circuitry absorbs voltage spikes, preventing damage and erratic behaviour in thermostats.
• IP30 Rated: Safe for indoor residential and commercial use with adequate protection.
• Robust & Double Insulated: High-quality construction ensures safe and durable operation.
• Surface Mounting: Compact design for easy installation in accessible locations.

Technical Specifications

Brand	ThermoSphere
Product Type	Contactor Snubber Unit
Available Models	25A (CSN-025), 40A (CSN-040), 63A (CSN-063)
Maximum Load	Up to 63 Amps (depending on model)
Power Supply	230V
Dimensions (mm)	W 110 x H 180 x D 95
Protection Rating	IP30
Mounting	Surface mount
Double Insulated	Yes
Warranty	3 years
EAN (25A)	5056257302300
MPN (25A)	CSN-025

Applications

• Allows controlled switching of electric underfloor heating circuits exceeding 16A from a single thermostat.
• Protects thermostats from electrical surges to extend product life and reliability.
• Ideal for large residential or commercial underfloor heating installations.

Why Choose ThermoSphere Contactor Snubber?

• Ensures safe and reliable control of high-load heating systems.
• Prevents thermostat damage caused by voltage spikes in large circuits.
• Backed by a 3-year warranty and UK manufacturing standards.
• Offers peace of mind with robust electrical safety features and proven performance.