JUMO 604100 User Manual

JUMO GmbH & Co. KG

Delivery address: Mackenrodtstraße 14

36039 Fulda, Germany

Postal address:

36035 Fulda, Germany
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Internet: www.jumo.net

JUMO Instrument Co. Ltd.

JUMO House
Temple Bank, Riverway
Harlow, Essex CM20 2DY, UK
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Internet: www.jumo.co.uk

JUMO Process Control, Inc.

6733 Myers Road
East Syracuse, NY 13057, USA
Phone: [phone]

1-800-554-5866
Fax: [phone]
E-mail: [e-mail]
Internet: www.jumousa.com

Data Sheet 604100

JUMO frostTHERM-AT/-DR

Type 604100, Surface-mounted or DIN Rail Thermostat

Special features

• connection technology • reduced installation time by 50 %

• Maximum switching capacity16 A, 230 V

• Protection type (AT) IP40 - IP65

Brief description

The frost protection thermostat is used for temperature monitoring in ventilation and air condi­tioning systems to prevent damage caused by frost. It has a low switching differential and a high
reproducibility. Reset occurs automatically (STW) or manually (STB).

High application flexibility and the latest connection technology are the essential equipment
features of this thermostat series. The thermostat case is suitable for all common installation
types such as wall, pipe, and DIN rail mounting. The JUMO frostTHERM-DR type is a specific
variation with a special case bottom section for DIN rail or wall mounting. This allows easy
mounting on mounting rails TH35 according to DIN EN 60715 (e.g. in control cabinets). This ver­sion considerably reduces the mounting time.

The "Push-In
contact point up to the stop. No tool is required for connecting the wire or braid with the ferrule,
thereby increasing safety during wiring. As a result, the costs and time required for connection
is considerably reduced compared that of the conventional screw terminal.

The "Push-In
installation costs can be reduced further because a contactor is not required.

(DR) IP20

®

" terminal technology allows the connection wires to be only inserted into the

®

" terminal technology allows direct switching of loads up to 16 A at 230 V AC. The

JUMO frostTHERM-AT (STW)

JUMO frostTHERM-DR (STW)

Page 1/4

Approval/approval marks (see Technical Data)

2011-10-04/00561806

JUMO GmbH & Co. KG

Delivery address: Mackenrodtstraße 14

36039 Fulda, Germany

Postal address:

36035 Fulda, Germany
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Internet: www.jumo.net

JUMO Instrument Co. Ltd.

JUMO House
Temple Bank, Riverway
Harlow, Essex CM20 2DY, UK
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Internet: www.jumo.co.uk

JUMO Process Control, Inc.

6733 Myers Road
East Syracuse, NY 13057, USA
Phone: [phone]

1-800-554-5866
Fax: [phone]
E-mail: [e-mail]
Internet: www.jumousa.com

Switching function

Data Sheet 604100 Page 2/4

Safety temperature monitor
STW

If the probe line falls below the entered setpoint value over a length of 15 cm with 3 m, 30 cm with 6 m, and
40 cm with 12 m, then electrical circuit 1-2 is opened while electrical circuit 1-4 is closed due to the change­over function. When the temperature rises, the microswitch is automatically switched back to its original posi­tion.

If the measuring system is destroyed (i.e. if the expansion fluid escapes) the pressure in the diaphragm drops
and permanently opens electrical circuit 1-2 and closes electrical circuit 1-4.

Safety temperature limiter
STB

In the event of a temperature drop, the safety temperature limiter automatically locks and can only be
unlocked manually once the temperature has risen again.

If the measuring system is destroyed (i.e. if the expansion fluid escapes), the pressure in the diaphragm drops
and permanently opens electrical circuit 1-2 and closes electrical circuit 1-4.

Technical data

Type 5 Type 7

Case Case bottom section: PA (reinforced)

Color: Silver gray RAL 7001

Case lid: ABS with inspection window (PMMA)

Color: Cobalt blue RAL 5013

Setpoint value adjustment

STW, STB The switching point can be adjusted with a screw-

driver once the case lid has been removed. The set
switching point can be checked through the inspec­tion glass.

Protection class IP 40 according to EN 60529

IP 65 according to EN 60529 (TZ 404)

Electrical connection Cable gland M 20 x 1.5,

for cable ∅ 6-12 mm

Probe line-Ø Approx. 2.4 mm (or 9.5mm with 1.8m capillary)

Case mounting Wall mounting / pipe mounting Wall mounting,

Weight Approx. 0.2 kg

Allowable storage tempera-

-30 °C to +80 °C

ture

Allowable
ambient conditions

-20 °C to +80 °C

The ambient temperature must exceed the switching point by +2 °C.

on the switching head

Maximum allowable

120 °C

probe line temperature

Allowable minimum bending

20 mm

radius of the probe line

Switching point can adjusted with a screwdriver.

IP 20 according to EN 60529

Cable connection directly on terminals

DIN rail installation TH35 according to DIN EN 60715

Electrical data

Electrical contact Snap-action switch with single-pole changeover contact

Switching capacity STW STB

On the N/C contact (contact deck 1-2):
AC 230 V +10 %, 16 (2.5) A, cos ϕ =1(0.6),
DC 230 V +10 %, 0.25 A

On the N/O contact (contact deck 1-4):
AC 230 V +10 %, 6.3 (2.5) A, cos ϕ =1(0.6),
DC 230 V +10 %, 0.25 A

Electrical connection contact (plug-type terminal)

®

"Push-In

Connection cross section 0.75 to 2.5 mm

" terminal technology: Patented connection technology from Weidmüller GmbH & Co. KG, Detmold.

2

finely stranded (single-wire, fine wired with ferrule)

Switching reliability To ensure high switching reliability, we recommend a minimum load of:

AC / DC = 24 V, 100 mA with silver contacts

Switching point accuracy +/- 2 °C

Switching differential 1.5 +/- 1 °C

2011-10-04/00561806

On the N/C contact (contact deck 1-2):
AC 230 V +10 %, 16 (2.5) A, cos = 1 (0.6),
DC 230 V +10 %, 0.25 A

On the signal contact (contact deck 1-4):
AC 230 V +10 %, 2 (04) A, cos = 1 (0.6),
DC 230 V +10 %, 0.25 A