Data Sheet

HRT4-A – Room Thermostat
Mains powered, electronic unit with TPI technology for
new and replacement installations.
Temperature setting range 5-30 °C
Specification
POWER SUPPLY 230v 50Hz
CONTACT RATING 3 (1) Amps 230V AC
CONTACT TYPE Micro-disconnection
POLLUTION DEGREE Degree 2
TEMPERATURE ACCURACY +/- 0.5°C (at 21 °C with
0.5 amp load)
TEMPERATURE RANGE HRT4-A – 5-30°C
HTT4 – 10-30°C
HFT4 – 0-20°C
CASE MATERIAL Thermoplastic flame
retardant
DIMENSIONS 86 x 86 x 36.25mm
RATED IMPULSE VOLTAGE Cat 2 – 2500v
ENCLOSURE PROTECTION IP30
DESIGN STANDARD EN60730 – 2-9
HTT4 – Tamper proof Room
Thermostat
A tamper proof version of the HRT4-A for use in public
areas or other situations where subsequent temperature
adjustment is not required/desirable.
Ÿ Internal setting dial
Ÿ Temperature setting range 10-30°C
HFT4 – Frost Thermostat
Electronic mains operated frost protection thermostat.
Ensures heating will switch on whenever frost
conditions are detected.
Ÿ Internal setting dial
Ÿ Temperature setting range 0-20°C
South Bristol Park, Roman Farm Road, Bristol BS4 1UP
t: [phone] | f: [phone] | e: [e-mail] | www.horstmann.co.uk
Horstmann is a trading name of Secure Controls (UK) Ltd., a wholly owned subsidiary of Secure Holdings PTE Ltd.
Registered office: Secure House, Moorside Road, Winnall Trading Estate, Winchester, Hampshire, SO23 7RX. Registered in England No. 457553
© January 2013: Secure Controls (UK) Ltd: All rights reserved. The company reserves the right to alter product specifications without notice.
Part No. P83867 Issue 2