Table of Contents
Advertisement
5.10.1.3
Equipment
Table 5- 35
Equipment on 3RU21 and 3RB20/3RB31 overload relays
Feature
RESET function
Remote RESET function
TEST function for auxiliary contacts
TEST function for electronics
Status display
Integrated auxiliary contacts
(1 NO + 1 NC)
5.10.1.4
Configuration of load feeders
Table 5- 36
Configuration of load feeders 3RU21 and 3RB30/3RB31
Feature
Short-circuit-proof up to 100 kA at
690 V
(in conjunction with the appropriate
fuses or the appropriate motor starter
protector)
Electrical and mechanical matching
to 3RT2 contactors
Spring-loaded connection system for
main circuit
Spring-loaded connection system for
auxiliary circuits
SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03
Description
Enables manual or automatic resetting of the relay
Enables remote resetting of the relay
Allows easy checking of function and wiring
Allows checking of the electronics
Indicates the current operating state
Allow the load to be disconnected in the event of
an irregularity
Can be used to output signals
Description
Provides optimum protection of the loads and
operating personnel in the event of short circuits
due to insulation faults or faulty switching
operations
Simplifies configuration
Reduces connection outlay and costs
Enables stand-alone assembly as well as space-
saving direct mounting
Enables fast connections
Ensures that connections are vibration-resistant
Enables maintenance-free connections
Enables fast connections
Ensures that connections are vibration-resistant
Enables maintenance-free connections
SIRIUS 3RU2/3RB3 overload relays
5.10 Technical data
3RU21
✓
✓
(by means
of separate
module)
✓
--
✓
✓
3RU21
✓
✓
✓
✓
3RB30/3RB
31
✓
✓
(3RB31 only
with
24 V DC)
✓
✓
✓
✓
3RB30/3RB
31
✓
✓
✓
✓
537
- Quick Links:
- Sirius 3Rt2 Contactors
Hide quick links:
Advertisement
Table of Contents
