Halstead – Dual Thermostat
Oil boiler control. Robust plastic housing consisting of control and limiter capillary thermostats. Available in either 2 x thermostat (twinstat) configuration or as a single BBSC capillary combination thermostat for greater accuracy and reduced temperature deviation
- Suitable for use with or without immersion pocket
- Pre-wired internally for ease of installation
- Anti-tamper control stops
- Terminals for auxiliary control circuits
- Customised colours and branding
Control: a rise in temperature causes the expansion of liquid within the bulb and capillary.
The liquid acts on a bellows assembly within the plastic housing to open and close electrical contacts.
High limit: in case of abnormal rise in temperature, liquid expansion in the bulb and capillary of the dedicated safety limiter acts on a bellows assembly to open electrical contacts.
The limiter is manually resettable.
TYPE – Dual control and regulation
TEMPERATURE RANGE – 0 to 90°C (others on request)
SAFETY LIMITER TEMPERATURE – 90 to 110°C, or fixed 100°C (others on request)
RATING – 20A – 250V
MATERIAL – Copper
CAPILLARY LENGTH – Up to 1500mm
CONNECTIONS – Screw and pillar terminals
APPROVALS – CE conformity, ENEC mark according to EN 60730-1, EN 60730-2-9, ROHS conformity
Halstead Aquastore Unvented Cylinders