Electrical Data - JUMO EM Series Operating Manual

NOTE:
Upon request the capillary length can be increased up to a maximum of 5,000 mm if the allowable tem-
perature on the sensor, capillary, and switching head is not reached.
Please let us know the actual temperature values to which the thermostat is exposed.
7.4

Electrical data

Switching element
1, 2, 3, or 4 single-pole snap-action
switches
Maximum switching capacity
Contact reliability
Rating surge voltage
Overvoltage category
Required fuse rating
Electrical connection
EM-1, EM-2, EM-3,
EM-20, EM-30
Microswitch
with changeover contact
Switching function
Switching differential
TR, TW, STB (STB)
2.5 %, 5 %, 6 %, 7 %,
10 %
TB, STB
TR, TW
1 %, 3 %
TR, TW
2.5 %
To ensure the greatest possible switching reliability we recommend a minimum
load of:
For silver contacts: AC/DC 24 V, 100 mA
For gold-plated contacts (extra code 702): AC/DC = 10 V, 5 mA
2500 V (via the switching contacts 400 V)
II
See maximum switching capacity
Standard: Tab connector A 6.3 × 0.8 DIN 46244
Extra code 699: Screw connection up to 2.5 mm
(available at extra cost), also suitable for retrofitting
7 Technical data
EM-4, EM-5,
EM-40, EM-50
Microswitch
with N/C contact and re-
start lock
N/C contact,
terminal 2
AC 230 V +10 %
16 (3) A, cos  = 1 (0.6)
DC 230 V +10 %, 0.25 A
AC 230 V +10 %
16 (3) A, cos  = 1 (0.6)
DC 230 V +10 %, 0.25 A
AC 230 V +10 %, 6 (2) A, cos  = 1 (0.6),
DC 230 V +10 %, 0.25 A
Microswitch with gold plating, extra code 702,
AC/DC 24 V, 0.1 A
2
EM-4.../U, EM-5.../U,
EM-40/U, EM-50/U
Microswitch
with N/C contact, restart
lock, and additional sig-
nal contact
N/O contact,
terminal 4
AC 230 V +10 %
8 (1.5) A, cos  = 1 (0.6)
DC 230 V +10 %, 0.25 A
AC 230 V +10 %
2 (1) A, cos  = 1 (0.6)
DC 230 V +10 %, 0,25 A
conductor cross section
31