PLANT ENGINEERING
UNIVERSAL CONTROLLER ETR 77 REMOTE SENSOR, ELECTRONIC
TECHNICAL DATA
APPLICATION
Housing colour:
grey (lower part similar to RAL 7016, upper part similar to RAL 7035)
Thanks to various sensor models suit- able for universal use in heating, venti- lation, air-conditioning and refrigeration technology as well as in mechanical and plant engineering. Sensors are not a part of the deliv- ery scope. For available sensors, see below or the ‘Sensor technology’ section. Note: The sensor line must be routed in a protective pipe. Parallel routing to- gether with lines that carry alternating currents is not permitted.
Ambient temperature: Permissible atmospheric humidity:
−20 to +50 °C
Max. 95% rel. humidity, non-condensing
Operating voltage:
230 V AC, 50 Hz
Max. switching current:
NO contact: 10 (3) A (heating), NC contact: 5 (1.5) A (cooling)
Max. switching voltage: Switching element: Switching contact: Control function: Electrical connection: Mounting / attachment:
230 V AC, 50 Hz
relay
toggler, potential-free heating or cooling screw-type terminals
wall mounting
Safety and EMC: according to DIN EN 60730
Protection class:
II
Sensor:
KTY 81-121 (sensor 51)
TYPE
ITEM NO.
CONTROL RANGE
FEATURES
HYSTERESIS ADJUSTABLE
EURO / PG
ETR 77.008-5
D4770014
−50 to +50 °C
IP65, TW, internal setting, scale: degrees Celsius
0.5–5 K
130.50 / II
ETR 77.009-5
D4770026
0 to 100 °C
IP65, TW, internal setting, scale: degrees Celsius
0.5–5 K
129.60 / II
TW = Temperature monitor
ILLUSTRATIONS
ACCESSORIES
ITEM NO.
FEATURES
EURO / PG
AF-51
G9040420
external temperature sensor
25.50 / III
ALF-51
G9050210
contact temperature sensor
28.50 / III
BTF2-Y81 / 121-0000
SA140017
Room temperature sensor, surface-mounted
28.30 / III
FUFY-81 / 121-0000
SN090201
Room temperature controller, flush-mounted
35.90 / III
KF-51
G9031452
Cable temperature sensor with 1.5 m silicone cable
32.10 / III
KF-51 / 6
G9031453
Cable temperature sensor with 6 m silicone cable
36.00 / III
STF-51
SN080500
Radiation temperature sensor
83.30 / III
196
Catalogue 2024
Prices valid from 01.01.2024 - 31.12.2024, prices may be subject to change | V1
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