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AutomationDirect Stellar SR55 クイック・スタート・マニュアル

Short Circuit Protection

SR55 Model Number
Rated
Operational
Current
Class J Time-
#1
Delay Fuse
Semiconductor
Fuse
#2
(class aR)
UL Listed
Inverse Time-
Delay Circuit
#1
Breaker
Rated
Conditional
Short-Circuit
Current
SR55 Model Number
Rated
Operational
Current
Class J Time-
#1
Delay Fuse
Semiconductor
Fuse
#2
(class aR)
UL Listed
Inverse Time-
Delay Circuit
#1
Breaker
Rated
Conditional
Short-Circuit
Current
#1 Suitable for use in a circuit capable of delivering not more than I
480 Volts maximum, when protected by Class J time delay fuses with a maximum rating of Z
or by a circuit breaker with a maximum rating of Z2 as in this table.
#2 Correctly selected semiconductor fuses can provide additional protection against damage to the
SR55 unit (this is sometimes referred to as type 2 co-ordination). These semiconductor fuses are
recommended to provide this increased protection.
1st Ed., Rev.E – 02/02/2017 – Stellar
SR55 Short-Circuit Protection
SR55
-017
I
(A)
17
e
Maximum
(A)
30
Rating Z
1
Type
Rating
(A)
100
Rating Z
(A)
60
2
I
(kA)
5
q
SR55
-124
I
(A)
132
e
Maximum
(A)
225
Rating Z
1
Mersen 6,9 URD 31xx
Bussmann 170M40xx
Type
Bussmann 170M41xx
Bussmann 170M42xx
SIBA 20 61xx
Rating
(A)
400
Rating Z
(A)
350
2
I
(kA)
10
q
®
SR55 Soft Starter Quick-Start Guide
SR55 Quick-Start Guide
SR55
SR55
SR55
SR55
-021
-027
-034
-040
22
29
35
41
40
50
60
70
Mersen 6,9 URD 30xx
Bussmann 170M30xx
Bussmann 170M31xx
Bussmann 170M32xx
SIBA 20 61xx
100
160
160
160
60
60
60
60
5
5
5
5
SR55
SR55
SR55
SR55
-156
-180
-242
-302
160
195
242
302
300
350
450
500
Mersen 6,9 URD 33xx
Bussmann 170M60xx
Bussmann 170M61xx
Bussmann 170M62xx
550
550
700
800
450
500
700
800
10
10
18
18
SR55
SR55
SR55
-052
-065
-077
55
66
80
100
125
150
200
200
250
150
150
250
5
5
10
SR55
SR55
SR55
-361
-414
-477
361
430
500
500
600
600
SIBA 20 63xx
900
1000
1100
1000
1000
1000
18
18
18
rms Symmetrical Amperes,
q
SR55
-096
100
175
315
300
10
–
–
,
1
17