IMO Technical Brochure
8 www.imopc.com + sales@imopc.com ( 01707 414 444
13
Technical Data
Data according to IEC 60947-3, VDE 0660, GB14048.3
1) Suitable at overvoltage category I to III, pollution degree 3 (standard-industry): Uimp = 8kV.
2) Suitable at overvoltage category I to III, pollution degree 2 (min.IP55): Uimp = 8kV.
Main Contacts Type SI16 SI25 SI32 SI38 SI40 SI55
Rated thermal current I
the
A 16 25 32 45 40 55
Rated insulation voltage U
i
1)
V 1000 1000 1000 1000 1500 1500
Rated insulation voltage U
i
2)
V 1500 1500 1500 1500 1500 1500
Distance of contacts (per pole) mm 8 8 8 8
Rated operational current I
e
300V A 16 23 27 40 55
1 pole 400V A 12 14 14 22 16 25 30 33 40 44
DC21A
& DC21B
1 500V A 9 10 11 17 13 20 19 24 25 32
600V A 6 7 8 12 10 15 15 19 20 25
700V A 4.5 5 6 7.5 7 10 12 15 18
800V A 3 4 5 8 10 10 13
900V A 2.5 3 3 4 6 8 8 10
DC21B
1000V A 1.5 2 2 2.5 3 4 5 6 8
2 poles in series 500V A 16 25 32 45 48 55
2 600V A 16 25 32 45 48 55
700V A 16 23 25 27 32 35 37 55
800V A 16 16 20 23 30 35 45 55
900V A 13 16 16 17 20 25 31 35 43
1000V A 9 10 11 11.5 13 20 25 29 36
1200V A 6 7 8 8.5 10 10 11 15 17
1500V A 3 4 5 5 6 6 7.5 7.5 10
2 poles in series 500V A 29 45 58 72 85
+ 2 poles parallel 600V A 29 45 50 55 64 68 80 85
2H 700V A 16 22 23 27 27 32 35 49 55 77
800V A 16 17 20 23 30 35 42 45 63
900V A 13 16 16 17 20 25 31 35 43
1000V A 9 10 11 11.5 13 20 23 29 25 36
1200V A 6 7 8 8.5 10 10 11 15 17
1500V A 3 4 5 5 6 6 7.5 7.5 10
3 poles in series 500V A 29 45 58 72 85
+ 2 poles parallel 600V A 29 45 50 58 72 85
3H 700V A 29 38 43 45 55 72 85
800V A 29 38 40 51 68 85
900V A 29 38 47 62 78
1000V A 29 38 45 58 70
1200V A 12 14 25 16 28 - -
1500V A 9 11 14 13 20 - -
4 poles in series 500V A 16 25 32 45 40 55
4S 600V A 16 25 32 45 40 55
700V A 16 25 32 40 55
800V A 16
25 32 40 55
900V A 16 25 32 40 55
1000V A 16 25 32 40 55
1200V A 16 25 32 40 55
1500V A 16 20 25 23 32 30 40 40 55
4 poles in series 500V A 29 45 58 72 85
+ 2 poles parallel 600V A 29 45 58 72 85
4H 700V A 29 45 58 72 85
800V A 29 45 58 72 85
900V A 29 45 58 72 85
1000V A 29 45 58 72 85
1200V A 29 45 50 56 65
1500V A 16 20 26 23 32 42 55
Rated operational current I
e
AC21B 2, 4 U
e
max. 440V A 16 25 32 45 40 55
2H U
e
max. 440V A 29 45 58 72 85
1
2
1
2
3
4
1
2
3
4
1
2
3
4
5
6
7
8
1
1
2
3
4
5
6