3UG3501 datasheet(94/114 Pages) ETC2

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Monitoring Relays

3RS10, 3RS11 Temperature Monitoring Relays

Relays, digitally adjustable for up to 3 sensors

7/94

Siemens LV 1 T · 2006

■Overview

The 3RS10 41 temperature monitoring relays can be used for

measuring temperatures in solid, liquid and gas media. The

temperature is sensed by the sensor in the medium, evaluated

by the device and monitored for overshoot or undershoot or for

staying within an operating range (window function). The signal

evaluator can evaluate up to 3 resistance sensors at the same

time and is specially designed for monitoring motor windings

and bearings.

■Technical specifications

1) Not for NTC B57227-K333-A1 (100 °C: 1.8 k; 25 °C: 32.762 k).

2) 2-wire connection of resistance sensors with wire jumper between T2 and T3.

3) See Catalog LV1, Accessories, 3RP15 Solid-State Timing Relays.

Type

3RS10 41

General data

Width

Operating range

0.85 ... 1.1 x Us

Rated power

W/VA

< 4/7

Auxiliary circuits

Contacts

1 CO + 1 CO + 1 NO

Rated operational currents Ie

• AC-15 at 230 V AC, 50 Hz

• DC-13 at:

- 24 V AC

- 240 V AC

0.1

DIAZED fuse

• gl/Gg operational class

Electrical endurance AC-15 at 3 A

100000

Mechanical endurance

Mechanical operating cycles

30 x 106

Tripping units

• Measuring accuracy at 20 °C ambient temperature

(T20)

2 K, 1 digit

• Deviations due to ambient temperature

in % from measuring range

0.05 per K deviation from T20

• Measuring cycle

500

• Hysteresis settings for temperature 1

1 ... 99 K, for both values

• Adjustable delay time

0 ... 999

Sensor circuits

• Typical sensor circuits

- PT100

Typical 1

- PT1000/KTY83/KTY84/NTC

Typical 0.2

• Open-circuit detection

Yes1)

• Short-circuit detection

Yes

• 3-wire conductor connection

Yes2)

Enclosures

Environmental influences

Permissible ambient temperature

°C

-25 ... +60

Permissible storage temperature

°C

-40 ... +80

Permissible mounting position

any

Degree of protection acc. to EN 60529

Terminals: IP20; Cover: IP40

Rated insulation voltage Ui

(pollution degree 3)

V AC

300

Conductor cross-section

• Screw-type connection

M 3.5 (standard screwdriver, size 2 and Pozidriv 2)

- Solid

mm2

1 x (0.5 ... 4)/2 x (0.5 ... 2.5)

- Finely stranded, with end sleeve

mm2

1 x (0.5 ... 2.5)/2 x (0.5 ... 1.5)

- AWG conductors, solid or stranded

AWG

2 x (20 ... 14)

- Tightening torque

0.8 ... 1.2

• Spring-loaded terminal

- Solid

mm2

2 x (0.25 ... 1.5)

- Finely stranded, with end sleeve

mm2

2 x (0.25 ... 1)

- Finely stranded, without end sleeve

mm2

2 x (0.25 ... 1.5)

- AWG conductors, solid or stranded

AWG

2 x (24 ... 16)

- Corresponding opening tool

8WA2 8073)

Vibration resistance IEC 68-2-6

5 ... 26 Hz/0.75 mm

Shock resistance IEC 68-2-27

15 g/11 ms

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