Brochure
Table Of Contents
- 2 3RV1 Circuit Breaker/MSP 1)
- 2.1 Specifications/regulations/approvals
- 2.2 Device description
- 2.3 Application and areas of use
- 2.4 Accessories
- 2.4.1 Attachable accessories: Overview
- 2.4.2 Auxiliary contacts 3RV19 01-.., alarm switch 3RV19 21-111 and auxiliary release 3RV19 .2-....
- 2.4.3 Motorized remote-control mechanism 3RV19 .6-....
- 2.4.4 Disconnecting/isolator module 3RV19 .8-1A
- 2.4.5 Thru-the door rotary operators 3RV19 .6-..
- 2.4.6 Terminals for "Combination Motor Controller Type E" in acc. with UL 508
- 2.4.7 Enclosures and mounting accessories
- 2.4.8 Busbar adapter 8US1 (Fastbus system)
- 2.4.9 Isolated 3-phase busbar system
- 2.4.10 Link module for connection to a contactor
- 2.5 Mounting and connection
- 2.6 Dimensional drawings (measurements in mm)
- 2.7 Technical specifications
- 2.7.1 General specifications
- 2.7.2 Permissible rating of approved devices for North America, u s
- 2.7.3 Short-circuit breaking capacity Icn in acc. with IEC 60 947-2
- 2.7.4 Limiter function with standard devices for 500 VAC and 690 VAC in acc. with IEC 60 947-2
- 2.7.5 Characteristics
- 2.7.6 Installation guidelines
- 2.8 Application notes for the use of 3RV1 downstream from frequency converters/ inverter with pulsing voltage
3RV1 Circuit Breaker/MSP
SIRIUS System Manual
2-12 GWA 4NEB 430 0999-02 DS 01
Frequency sensitivity of
the short-circuit
releases
The characteristics of the short-circuit releases apply to frequencies of 50/
60 Hz. For lower frequencies, such as 16
2
/
3
Hz, for higher frequencies up to
400 Hz, and for direct current, appropriate correction factors have to be
taken into account.
The following characteristic curve illustrates the frequency sensitivity of the
short-circuit releases:
Fig. 2-7: Frequency sensitivity of the short-circuit releases
The increase in tripping current is approximately 40 % for DC voltage.
40
30
20
10
0
-10
-20
-30
050
100
200 250 300 350 400
Hz150
Tripping current
Change in %