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3RU2916-3AC01

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Заказной номер	Вес	PG	Описание продукта	Цена
3RU2916-3AC01	0.06	41F	АДАПТЕР ДЛЯ ОТДЕЛЬНОЙ УСТАНОВКИ РЕЛЕ 3RU21/3RB30/3RB31 ТИПОРАЗМЕР S00, ОТДЕЛЬНАЯ УСТАНОВКА, СИЛОВАЯ ЦЕПЬ: ПРУЖИННЫЕ КЛЕММЫ, ВСПОМ. ЦЕПЬ:	По запросу

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More information
Home page, see http://www.siemens.com/relays	В
Industry Mall, seeВ http://www.siemens.com/product?3RR21	В

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 45В mm (S00 and S0) and 55В 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: 1.6В ...В 16В A S0: 4В ...В 40В A S2: 8В ...В 80В A	S00: 1.6В ...В 16В A S0: 4В ...В 40В A S2: 8В ...В 80В 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	-25В ...В +60В В°C	-25В ...В +60В В°C	Suitable for applications in the control cabinet, worldwide
Monitoring functions
Current overshoot	вњ“ (Two-phase)	вњ“ (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	вњ“ (Two-phase)	вњ“ (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	вњ“	вњ“ (selectable)	Precision current monitoring especially in a motor's rated and upper torque range
Active current monitoring	--	вњ“ (selectable)	Optimum current monitoring over a motor's entire torque range through the patented combination of power factor and apparent current monitoring
Range monitoring	вњ“ (Two-phase)	вњ“ (Three-phase)	Simultaneous monitoring of current overshoot and undershoot with a singe device
Phase failure, open circuit	вњ“ (Two-phase)	вњ“ (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	--	вњ“ (selectable)	Prevents starting of motors, pumps or compressors in the wrong direction of rotation
Internal ground-fault detection (residual current monitoring)	--	вњ“ (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	--	вњ“ (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	вњ“	вњ“	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	0В ...В 60В s	0В ...В 99В s	Enables motor starting without evaluation of the starting current Can be used for monitoring motors with lengthy start-up
Tripping delay time	0В вЂ¦В 30В s	0В вЂ¦В 30В 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 100В kA at 690В V (in conjunction with the corresponding fuses or the corresponding motor starter protector)	вњ“	вњ“	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	вњ“	вњ“	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	вњ“ (optional)	вњ“ (optional)	Enables fast connections Permits vibration-resistant connections Enables maintenance-free connections
Other features
Suitable for single- and three-phase loads	вњ“	вњ“	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	вњ“	вњ“	Reduce the number of variants Minimize the configuration outlay and costs Minimize storage overheads, storage costs, tied-up capital
Wide voltage supply range	вњ“ (optional)	вњ“ (optional)	Reduces the number of variants Minimizes the configuring outlay and costs Minimizes storage overhead, storage costs, tied-up capital

вњ“ Available

-- Not available

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

Monitoring relays	Current range	Contactors (type, size, rating)		В
Type	A	3RT201 S00 3/4/5.5/7.5В kW	3RT202 S0 5.5/7.5/11/15/18.5В kW	3RT203 S2 18.5/22/30/37 kW
3RR2.41
3RR2141	1.6В вЂ¦В 16	вњ“	With stand-alone installation support	With stand-alone installation support
3RR2241	1.6В вЂ¦В 16	вњ“	With stand-alone installation support	With stand-alone installation support
3RR2.42	В	В	В	В
3RR2142	4В вЂ¦В 40	With stand-alone installation support	вњ“	With stand-alone installation support
3RR2242	4В вЂ¦В 40	With stand-alone installation support	вњ“	With stand-alone installation support
3RR2.43	В	В	В	В
3RR2143	8В вЂ¦В 80	With stand-alone installation support	With stand-alone installation support	вњ“
3RR2243	8В вЂ¦В 80	With stand-alone installation support	With stand-alone installation support	вњ“

вњ“ Available

Article No. scheme

Product versions		Article number
Monitoring relays		3RR2	вќ’	4	вќ’	вЂ“	вќ’	вќ’	вќ’	3	0
Type of setting	Analog adjustable, two-phase	В	1	В	В	В	В	В	В	В	В
Type of setting	Digitally adjustable, three-phase	В	2	В	В	В	В	В	В	В	В
Size	S00	В	В	В	1	В	В	В	В	В	В
	S0	В	В	В	2	В	В	В	В	В	В
	S2	В	В	В	3	В	В	В	В	В	В
Connection type	Screw terminals	В	В	В	В	В	1	В	В	В	В
Connection type	Spring-type terminals	В	В	В	В	В	2	В	В	В	В
Number and type of outputs	1 CO contact	В	В	В	В	В	В	A	В	В	В
Number and type of outputs	1 CO contact + 1 semiconductor	В	В	В	В	В	В	F	В	В	В
Rated control supply voltage	24В VВ AC/DC	В	В	В	В	В	В	В	A	В	В
Rated control supply voltage	24В ...В 240В VВ AC/DC	В	В	В	В	В	В	В	W	В	В
Example		3RR2	1	4	1	вЂ“	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.