Yaskawa Large Capacity Sigma II Series - Manual (Page 332)

7 Servo Selection and Data Sheets
7.5.15 Thermal Relays
7-56
7.5.15 Thermal Relays
Connect a thermal relay to the SERVOPACK to protect the regenerative resistor and
dynamic brake resistor from heat damage when operating under extreme conditions.
„ Recommended Thermal Relay Models
Select the appropriate thermal relay from the following list when using Yaskawa Regenera-
tive Resistor Units and Dynamic Brake Units.
„ Dimensional Drawings
The following dimensional drawing is for a TR-3N Thermal Relay.
Dynamic Brake
(DB) Unit and
Regenerative
Resistor
Unit Model
Thermal Relay
Model
Thermal Relay
Current Range
A
Thermal Relay
Current
A
Manufacturer
JUSP-DB03
JUSP-DB04
JUSP-DB05 TR-3N/3 7 A 7 to 11 7 Fuji Electric Co.,
Ltd.
JUSP-DB06 TR-3N/3 7 A 7 to 11 9
JUSP-RA08 TR-3N/3 12 A 12 to 18 14
JUSP-RA09 TR-3N/3 18 A 18 to 26 23
JUSP-RA11 TR-3N/3 18 A 18 to 26 24
JUSP-RA12 TR-3N/3 7 A 7 to 11 9
JUSP-RA13 TR-3N/3 9 A 9 to 13 10
JUSP-RA14 TR-3N/3 12 A 12 to 18 14
JUSP-RA15 TR-3N/3 12 A 12 to 18 17
JUSP-RA16 TR-3N/3 18 A 18 to 26 19
93 (3.66)
79.5 (3.13)
64.5 (2.54)
Reset switch
7
(0.28)
Units: mm (inches)
Approx. mass: 0.3 kg (0.661 lb)
88 (3.46)
15.3 20
Auxiliary terminal
(M3.5)
Main
terminals
(M6)
60 (2.36)
61.5 (2.42)
(0.79) (0.6)
(1.57)
40
Two, M4
mounting holes
Mounting Hole Dimensions