IMO Technical Brochure
Data according to UL508i File E362605, CCN: NMSJ and UL60947-1 & UL60947-4-1 File E146487, CCN: NRNT, NRNT7
Technical Data continued
Main Contacts Type SI16 SI25 SI32 SI38 SI40 SI55 SI65
Ampere-Rating “General Use”
DC
1 pole 350V A 4 5 6 6 7.1 10 10
1 500V A 4 5 6 6 5.7 7 7
600V A 4 5 6 6 5 5.8 5.8
700V A 3.9 5 5
800V A 3.2 4.4 4.4
900V A 2.5 3.5 3.5
1000V A 1.5 2 2
2 poles in series
350V A 16 25 32 45 48 55 65
2 500V A 16 25 32 45 48 55 65
600V A 16 25 32 36 40 55 65
700V A 32 46 50
800V A 26 37 40
900V A 20 28 32
1000V A 16 20 25
2 poles in series
350V A 29 45 58 58 72 85 85
+ 2 poles parallel 500V A 29 41 43 45 53 66 73
2H 600V A 21 30 33 36 42 55 65
700V A 35 47 50
800V A 30 40 40
900V A 26 32 32
1000V A 22 25 25
4 poles in series
350V A 16 25 32 45 48 55 65
4S, 4B, 4T 500V A 16 25 32 45 48 55 65
600V A 16 25 32 36 40 55 65
700V A 40 55 65
800V A 40 55 65
900V A 40 55 65
1000V A 40 55 65
3 poles in series
350V A 29 45 58 58 72 85 85
+ 2 poles parallel 500V A 29 41 50 50 56 80 85
3H 600V A 21 38 45 45 52 65 72
700V A 46 58 66
800V A 40 51 60
900V A 36 45 54
1000V A 33 42 48
4 poles in series
350V A 29 45 58 58 80 85 85
+2 poles parallel 500V A 29 45 58 58 71 85 85
4H 600V A 29 45 50 50 65 85 85
700V A 58 76 85
800V A 51 71 76
900V A 45 67 73
1000V A 42 64 70
AC Rating “General Use”
2 poles in series
600V A 16 25 32 40 55 -
2 poles in series
+ 2 poles parallel
277V A 50 72 85 -
3 poles parallel 3x480V A 32 40 55 -
Fuse size (RK5) Industrial Control Switch
5kA / 600V A 40 60 80 80 - - -
5kA / 1000V A 160 160 160
Maximum cable cross sections
(including jumper SIV-B1-1/B2-1)
solid or stranded AWG 12 - 10 12 - 10 12 - 10 12 - 10 16 - 10 16 - 10 16 - 10
exible AWG 12 - 6 12 - 6 12 - 6 12 - 6 14 - 4 14 - 4 14 - 4
exible (+ multicore cable end) AWG 12 - 6 12 - 6 12 - 6 12 - 6
Size of terminal screw M4 Pz2 M4 Pz2 M4 Pz2 M4 Pz2 M5 Pz2 M5 Pz2 M5 Pz2
Tightening torque lb.inch 9 - 16 9 - 16 9 - 16 9 - 16 22 - 25 22 - 25 22 - 25
x - In Test
1
2
3
4
5
6
1
2
1 2
3
4
1
2
3
4
1
2
3
4
5
6
7
8
1
1
2
1 2
3
4
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