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®
THERMASREG
The mechanical frost protection thermostat ⁄ frost monitor THERMASREG
reset, or with mechanical locking and manual reset, is available with capillaries in lengths of 0.6 m, 1.8 m, 3 m, 6 m, or 12 m. This frost protection
monitor is used for air- and water-side temperature monitoring at heat exchangers, water circulation systems, and heating registers to prevent
freezing up and to avoid frost damages, e. g. in ventilation and air conditioning ducts. All devices are self-secure with sensor breakage detection. In
case of damage to the capillary tube – membrane system, the relay automatically switches to heating function. FST - 3 can also be used for monitoring
liquids. The sensor tube can be installed inside an immersion sleeve. Mounting clamps MK - 05 -K are included in the delivery.
TECHNICAL DATA
Switching capacity:
Setting range:
Operating difference:
Reproducibility:
Contact:
Sensor responding length:
Length of capillary tube:
Resetting:
Permissible medium:
Ambient temperatures:
Process connection:
Enclosure:
Enclosure dimensions:
Cable gland:
Other materials:
Installation length:
Electrical connection:
Protection class:
Protection type:
Standards:
FUNCTION
®
THERMASREG
FST – Frost protection thermostats, mechanical
Type ⁄ WG03
Temperature
Range
FST - xx D
FST-1D *
–10...+15 °C
FST-3D *
–10...+15 °C
FST-5D *
–10...+15 °C
FST-7D *
–10...+15 °C
FST-8D
–10...+15 °C
FST - xx D - HR
FST-1D-HR *
–10...+15 °C
FST-3D-HR *
–10...+15 °C
FST-5D-HR *
–10...+15 °C
FST-7D-HR *
–10...+15 °C
FST-8D-HR
–10...+15 °C
Features:
FST- x D
FST- x D - HR
Accessories
KRD-04
Capillary tube gland bracket
MK-05-K
Mounting clamps (6 pieces) plastic (*= included in the scope of delivery)
TH-MS-01
Immersion sleeves, brass, for FST- 3
TH-VA-02
Immersion sleeves, stainless steel, for FST- 3
WS-03
Sunshade and weather protection, 200 x 180 x 150 mm, stainless steel
FST
10 (2) A, AC 250 V; because of gold-plated switching contacts also switching of signal voltages < 24 V
–10...+15 °C ⁄ +14 °F...+59 °F, factory setting to w = +5 °C (+41 °F)
2 ± 1 K (3.6 ± 1.8 °F)
± 0.5 K (± 0.9 °F)
dust-proof micro switch as single-pole potential-free changeover contact
approx. 40 cm
see table of types (0.6...12 m)
FST-xD: automatic;
FST-1 ⁄ 5 ⁄ 7 ⁄ 8; air
maximum operating temperature: +70 °C (+158 °F)
minimum operating temperature: w + min. +2 °C (min. +3.6 °F)
storage ⁄ transport: –30...+70 °C (–22...+158 °F)
by mounting clamps MK- 05 - K (included in the scope of delivery)
plastic, material polyamide, 30 % glass-globe-reinforced,
with quick-locking screws (slotted ⁄ Phillips head combination),
colour traffic white (similar to RAL 9016)
126 x 90 x 50 mm (Tyr 2)
M 16 x 1.5; including strain relief
mechanical sheet metal parts: galvanised steel; capillary tube: copper; capillary tube filling: R 507
switching contacts: Ag ⁄ Ni (90% ⁄ 10%) gold-plated (3 μm)
arbitrary
0.14 - 2.5 mm²
I (according to EN 60 730-1)
IP 65 (according to EN 60 529)
CE conformity, EMC directive 2014 ⁄ 30 ⁄ EU, low-voltage directive 2014 ⁄ 35 ⁄ EU
Contact C - 2: danger of frost ⁄ sensor breakage
Contact C - 3: normal operation
Thermal Operating
Difference (fixed) approx.
2 K (± 1 K)
2 K (± 1 K)
2 K (± 1 K)
2 K (± 1 K)
2 K (± 1 K)
2 K (± 1 K)
2 K (± 1 K)
2 K (± 1 K)
2 K (± 1 K)
2 K (± 1 K)
TW = temperature monitor (automatically switching)
TB = temperature limiter (manual reset)
®
FST with switching output, fully-active sensor rod, with automatic
FST-xD - HR: manual
FST-3: water
Length of
Capillary
6.0 m
1.8 m
3.0 m
12.0 m
0.6 m
6.0 m
1.8 m
3.0 m
12.0 m
0.6 m
Permissible
Item No.
Medium
TW
air
1102-1021-0102-000
air ⁄ water
1102-1023-0102-000
air
1102-1022-0102-000
air
1102-1025-0102-000
air
1102-1024-0102-000
TB
air
1102-1021-1102-000
air ⁄ water
1102-1023-1102-000
air
1102-1022-1102-000
air
1102-1025-1102-000
air
1102-1024-1102-000
7100-0030-7000-000
7100-0 034-1000-000
7100-0011-5402-000
7100-0012-5402-000
7100-0040- 6000- 000
Rev. 2017 - V22 GB
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