M. K. JUCHHEIM GmbH & Co • 36035 Fulda, Germany

Data Sheet 60.3021

Page 3/10

10.03/00073225

Electrical data

Operating data

Switching device

ATH.-1

ATH.-2

ATH.-20

ATH.-7

ATH.-70

ATH.-7/U

ATH.-70/U

microswitch with changeover

contact

microswitch with break contact

and lock-out

microswitch with break contact,

lock-out and

additional signal contact

Max. rating

10 (2) A, 230 V AC +10%, p.f. = 1 (0.6)

0.25A, 230 V DC +10%

with differential 1.5% und 2%

6 (1.2) A, 230 V AC +10%, p.f. = 1 (0.6)

––

microswitch gold-plated, code /au

0.1 A, 24 V AC / DC +10%,

contact resistance 2.5 — 10 m

Ω

–

Switching differential

in % of control /

limit range

Switching function

liquid-filled measuring system

Nominal value

Possible actual value

TR, TW

33 max. 4

standard

66 max. 8

on request

1.5

1 max. 2

at extra charge

gas-filled measuring system

54 max. 8

standard

98 max. 12

on request

2

1.5 max. 2.5

at extra charge

liquid-filled measuring system

STW (STB)

54 max. 6

standard

98 max. 11

on request

2

1 max. 3

at extra charge

gas-filled measuring system

75 max. 12

standard

98 max. 16

on request

2

1.5 max. 3

at extra charge

Switching point

accuracy in % of

control / limit range

TR: in upper third of scale ± 1.5%, at start of scale ± 6%

TW, TB, STB, STW (STB): in upper third of scale +0/-5%, at start of scale +0/-10%

Ambient

temperature error

referred to control /

limit range

A deviation of the ambient temperature at the case from the 22 ° calibration ambient temperature

produces a shift in the switching point:

higher ambient temperature = lower switching point

lower ambient temperature = higher switching point

Surface-mounting thermostats with end-of-scale value

< 200 °C

≥ 200°C ≤ 350°C

> 350°C ≤ 500°C

TR / TW / TB

STB/STW (STB)

TR / TW / TB

STB/STW (STB)

TR / TW / TB

STB/STW (STB)

due to thermostat head

0.08%/°C

0.17 %/°C

0.06%/°C

0.13 %/°C

0.14%/°C

0.12%/°C

due to capillary per meter length

0.047 %/°C

0.054%/°C

0.09%/°C

0.11 %/°C

0.04%/°C

0.03%/°C

Permissible storage

temperature

-50 to +50 °C

Permissible

ambient

temperature

in operation

+80°C max.

Nominal position

(NL)

to DIN 16 257, NL 0 — NL 90 (other NL on request)