Siemens
ÑÐÅÄÑÒÂÀ ÏÐÎÌÛØËÅÍÍÎÉ ÀÂÒÎÌÀÒÈÇÀÖÈÈ
îôèöèàëüíûé ïàðòíåð Ñèìåíñ
Êàòàëîã ÑÀ01 2018
(4872) 700-366
skenergo@mail.ru

3RU2936-3AA01

Öåíà íà ñàéòå óêàçàíà ðîçíè÷íàÿ â ÅÂÐÎ áåç ó÷åòà ÍÄÑ.
Äëÿ óòî÷íåíèÿ öåíû è ðàçìåðà ïðåäîñòàâëÿåìîé ñêèäêè - çâîíèòå èëè ïðèñûëàéòå çàÿâêè

Çàêàçíîé íîìåðÂåñPGÎïèñàíèå ïðîäóêòàÖåíà
3RU2936-3AA010.1741FÀÄÀÏÒÅÐ ÄËß ÎÒÄÅËÜÍÎÉ ÓÑÒÀÍÎÂÊÈ ÐÅËÅ 3RU21/3RB30/3RB31 ÒÈÏÎÐÀÇÌÅÐ S2, ÎÒÄÅËÜÍÀß ÓÑÒÀÍÎÂÊÀ, ÑÈËÎÂÀß ÖÅÏÜ: ÂÈÍÒÎÂÛÅ ÊËÅÌÌÛÏî çàïðîñó



More information

Home page, see http://www.siemens.com/relays

 

Industry Mall, see http://www.siemens.com/product?3RR21

 


The SIRIUS 3RR2 current monitoring relays are suitable for the load monitoring of motors or other loads. In two or three phases they monitor the rms value of AC currents for overshooting or undershooting of set threshold values.

Whereas apparent current monitoring is used above all in connection with the rated torque or in case of overload, the active current monitoring option can be used to observe and evaluate the load factor over a motor's entire torque range.

3RR2 current monitoring relays can be integrated directly in the feeder by mounting onto the 3RT2 contactor; separate wiring of the main circuit is therefore superfluous. No separate transformers are required.

For a line-oriented configuration or simultaneous use of an overload relay, terminal supports for stand-alone installation are available for separate standard rail mounting.

Versions

Basic versions

The basic versions with two-phase apparent current monitoring, a CO contact output and analog adjustability provide a high level of monitoring reliability especially in the rated and overload range.

Standard versions

The standard versions monitor the current in three phases with selectable active current monitoring. They have additional diagnostics options such as residual current monitoring and phase sequence monitoring, and they are also suitable for monitoring motors below the rated torque. These devices have an additional independent semiconductor output, an actual value indicator, and are digitally adjustable.

Both versions are available optionally with screw terminals or spring-type terminals, in each case for sizes S00 and S0. In the case of size S2 versions, the main conducting paths are always fitted with a screw connection and the control current side can be ordered with either screw-type or spring-loaded terminals.

Note:

In addition to the features of the standard versions, 3RR24 monitoring relays for mounting onto 3RT2 contactors for IO-Link also offer the possibility of transmitting the measured values and diagnostics data to a controller via an IO-Link. Furthermore, the devices can be parameterized on the devices themselves or via IO-Link.

For more information, see "SIRIUS 3RR24 Monitoring Relays for Mounting on 3RT2 Contactors for IO-Link".

3RR21 and 3RR22 overview table

Features

3RR21

3RR22

Benefits

General data

Sizes

S00, S0, S2

S00, S0, S2

  • Are coordinated with the dimensions, connections and technical characteristics of the other devices in the SIRIUS modular system (contactors, soft starters, etc.)
  • Permit the mounting of slim-line and compact load feeders in widths of 45 mm (S00 and S0) and 55 mm (S2)
  • Simplify configuration

Dimensions in mm (W x H x D)

  • Screw terminals


S00: 45 x 79 x 80,
S0: 45 x 87 x 91,
S2: 55 x 99 x 112


S00: 45 x 79 x 80,
S0: 45 x 87 x 91,
S2: 55 x 99 x 112

  • Spring-type terminals

S00: 45 x 90 x 80,
S0: 45 x 109 x 92,
S2: 55 x 99 x 112

S00: 45 x 90 x 80,
S0: 45 x 109 x 92,
S2: 55 x 99 x 112

Current range

S00: 1.6 ... 16 A
S0: 4 ... 40 A
S2: 8 ... 80 A

S00: 1.6 ... 16 A
S0: 4 ... 40 A
S2: 8 ... 80 A

  • Is adapted to the other devices in the SIRIUS modular system
  • Just a single version per size with a wide setting range enables easy configuration

Permissible ambient operating temperature

-25 ... +60 °C

-25 ... +60 °C

  • Suitable for applications in the control cabinet, worldwide

Monitoring functions

Current overshoot

✓ (Two-phase)

✓ (Three-phase)

  • Provides optimum inverse-time delayed protection of loads against excessive temperature rises due to overload
  • Enables detection of filter blockages or pumping against closed gate valves
  • Enables drawing conclusions about wear, poor lubrication or other maintenance-relevant phenomena

Current undershoot

✓ (Two-phase)

✓ (Three-phase)

  • Enables detection of overload due to a slipping or torn belt
  • Ensures protection of pumps against dry running
  • Facilitates monitoring of the functions of resistive loads such as heaters
  • Permits energy savings through monitoring of no-load operation

Apparent current monitoring

✓

✓ (selectable)

  • Precision current monitoring especially in a motor's rated and upper torque range

Active current monitoring

--

✓ (selectable)

  • Optimum current monitoring over a motor's entire torque range through the patented combination of power factor and apparent current monitoring

Range monitoring

✓ (Two-phase)

✓ (Three-phase)

  • Simultaneous monitoring of current overshoot and undershoot with a singe device

Phase failure, open circuit

✓ (Two-phase)

✓ (Three-phase)

  • Minimizes heating of three-phase motors during phase failure through immediate disconnection
  • Prevents operation of hoisting equipment with reduced load carrying capacity

Phase sequence monitoring

--

✓ (selectable)

  • Prevents starting of motors, pumps or compressors in the wrong direction of rotation

Internal ground-fault detection
(residual current monitoring)

--

✓ (selectable)

  • Provides optimum protection of loads against high-resistance short circuits or ground faults due to moisture, condensed water, damage to the insulation material, etc.
  • Eliminates the need for additional special equipment and thus space in the control cabinet
  • Reduces wiring outlay and costs

Blocking current monitoring

--

✓ (selectable)

  • Minimizes heating of three-phase motors when blocked during operation through immediate disconnection
  • Minimizes mechanical loading of the system by acting as an electronic shear pin

Features

RESET function

✓

✓

  • Allows manual or automatic resetting of the relay
  • Resetting directly on the device or by switching the control supply voltage off and on (remote RESET)

ON-delay time

0 ... 60 s

0 ... 99 s

  • Enables motor starting without evaluation of the starting current
  • Can be used for monitoring motors with lengthy start-up

Tripping delay time

0 … 30 s

0 … 30 s

  • Permits brief threshold value violations during operation
  • Prevents frequent warnings and disconnections with currents near the threshold values

Operating and indicating elements

LEDs and rotary potentiometers

Displays and buttons

  • For setting the threshold values and delay times and for fast and targeted diagnostics
  • For selectable functions
  • Displays for permanent indication of measured values

Integrated contacts

1 CO contact

1 CO,1 semiconductor output

  • Enable disconnection of the system or process when there is an irregularity
  • Can be used to output signals

Design of load feeders

Short-circuit strength up to 100 kA at 690 V

(in conjunction with the corresponding fuses or the corresponding motor starter protector)

✓

✓

  • Provides optimum protection of the loads and operating personnel in the event of short circuits due to insulation faults or faulty switching operations

Electrical and mechanical matching to 3RT2 contactors

✓

✓

  • Simplifies configuration
  • Reduces wiring outlay and costs
  • Enables stand-alone installation as well as space-saving direct mounting

Spring-type terminals for main circuit (for S00, S0) and auxiliary circuits

✓ (optional)

✓ (optional)

  • Enables fast connections
  • Permits vibration-resistant connections
  • Enables maintenance-free connections

Other features

Suitable for single- and three-phase loads

✓

✓

  • Enables the monitoring of single-phase systems through parallel infeed at the contactor or looping the current through the three phase connections

Wide setting ranges

✓

✓

  • Reduce the number of variants
  • Minimize the configuration outlay and costs
  • Minimize storage overheads, storage costs, tied-up capital

Wide voltage supply range

✓ (optional)

✓ (optional)

  • Reduces the number of variants
  • Minimizes the configuring outlay and costs
  • Minimizes storage overhead, storage costs, tied-up capital


✓ Available

-- Not available

Possible combinations of 3RR21/3RR22 monitoring relays with 3RT2 contactors

Monitoring relays

Current range

Contactors (type, size, rating)

 

Type

A

3RT201
S00
3/4/5.5/7.5 kW

3RT202
S0
5.5/7.5/11/15/18.5 kW

3RT203
S2
18.5/22/30/37 kW

3RR2.41

3RR2141

1.6 … 16

✓

With stand-alone installation support

With stand-alone installation support

3RR2241

1.6 … 16

✓

With stand-alone installation support

With stand-alone installation support

3RR2.42

    

3RR2142

4 … 40

With stand-alone installation support

✓

With stand-alone installation support

3RR2242

4 … 40

With stand-alone installation support

✓

With stand-alone installation support

3RR2.43

    

3RR2143

8 … 80

With stand-alone installation support

With stand-alone installation support

✓

3RR2243

8 … 80

With stand-alone installation support

With stand-alone installation support

✓



✓ Available

Article No. scheme

Product versions

Article number

Monitoring relays

3RR2

â’

4

â’

–

â’

â’

â’

3

0

Type of setting

Analog adjustable, two-phase

 

1

        

Digitally adjustable, three-phase

 

2

        

Size

S00

   

1

      

S0

   

2

      

S2

   

3

      

Connection type

Screw terminals

     

1

    

Spring-type terminals

     

2

    

Number and type of outputs

1 CO contact

      

A

   

1 CO contact + 1 semiconductor

      

F

   

Rated control supply voltage

24 V AC/DC

       

A

  

24 ... 240 V AC/DC

       

W

  

Example

3RR2

1

4

1

–

1

A

A

3

0



Note:

The Article No. scheme shows an overview of product versions for better understanding of the logic behind the article numbers. For your orders please use the article numbers quoted in the selection and ordering data.

















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