JUMO ATHf-SW Operating Instructions Manual page 26

6 Instrument description
Contact rating
Fuse required
Enclosure
protection
Operating
medium
Time constant
t
0.632
Action
Weight
26
TW with differentials 3, 5, 6, 9% / STW (STB) 5, 7, 9% and STB
10 (2) A, 230 V AC +10%,
p.f. = 1 (0.6)
TW with differential 1.5% / STW (STB) 2%
6 (1.2) A, 230 V AC +10%,
p.f. = 1 (0.6)
0.1 A, 24 V AC/DC
see contact rating
EN 60 529 - IP65, operation in normal conditions
water, oil, air, superheated steam
in water
≤ 45 sec
according to EN 60 730-1
TW: Type 2BL = automatic action
STB, STW (STB): Type 2BK = automatic action
approx. 1.0 kg
microswitch gold-plated, code /au
in oil
≤ 60 sec
with micro disconnection in operation,
no auxiliary power source required.
with micro disconnection in operation,
with break protection.
0.25 A, 230 V DC +10%
0.15 A, 230 V DC +10%
contact resistance 2.5 — 10 m
in air / superheated
steam
≤ 120 sec
Ω