Universal controller ETR 77 remote sensor, electronic
Technical data
Application
Housing colour:
grey (lower part like RAL 7016, upper part like RAL 7035)
Thanks to various sensor models suitable for universal use in heating, ventilation, air-condi- tioning and refrigeration technology as well as in mechanical and plant engineering. Sensors are not a part of the delivery scope For available sensors, see below or the “Sen- sors” section. Note: The sensor line is to be routed in a pro- tective duct. Parallel routing together with lines that carry AC voltage is not permissible.
Ambient temperature: Permissible atmospher- ic humidity:
–20 … +50 °C
Max. 95% rel. humidity, non-con- densing
Operating voltage: 230 VAC, 50 Hz Max. switching current: NO contact: 10 (3) A (heating), NC contact: 5 (1.5) A (cooling) Max. switching voltage: 230 VAC, 50 Hz Switching element: relay Switching contact: toggler, potential-free Control function: heating or cooling Electrical connection: screw-type terminals Mounting/attachment: wall mounting Protection class: II Sensor: KTY 81-121 (sensor 51)
Safety and EMC: according to DIN EN 60730
Type
Item no.
Control range Features
Hysteresis adjustable
PG
ETR 77.008-5
D4770014
–50 … +50 °C IP 65, TW, internal setting, scale: degrees Celsius
0.5 … 5 K
II
ETR 77.009-5
D4770026
0 … 100 °C IP 65, TW, internal setting, scale: degrees Celsius
0.5 … 5 K
II
TW = Temperature monitor
ETR 77
ETR 77
Accessories
Item no.
Features
PG
AF-51
G9040420
external temperature sensor
III
ALF-51
G9050210
contact temperature sensor
III
BTF2-Y81 / 121-0000
SA140017
room temperature sensor, surface-mounted
III
FUFY-81 / 121-0000
SN090201
room temperature controller, flush-mounted
III
KF-51
G9031452
Cable temperature sensor with 1.5 m silicone cable
III
KF-51 / 6
G9031453
Cable temperature sensor with 6 m silicone cable
III
STF-51
SN080500
radiation temperature sensor
III
Catalogue 2022 | Page 188
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