41 ELECTRONIC COMPACT STARTER | MANUAL
Group mounting – example 2
It is possible to combine all variants of HF-starters with all MO132 up to 32 A (DOL, ROL, DOLE, ROLE, R). It is important that
the sum of currents must not exceed the nominal current of the MO132.
SCPD: MO132-10, maximal current 10 A
• Installing one HF9 with nominal current of 6.5 A
• Adding two HF2.4 with nominal current of 1.33 A results in 2,66 A
• Adding two HF0.6 with nominal current 0.41 A results in 0.82 A
• Calculation: 10 A - 6.5 A – ( 2 x 1.33 A) – (2 x 0.41 A) = 0,02 A
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26 Group mounting protection example with MO132-32 A
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6.6.1 Protection with fuses
Single mounting fused design
All variants of HF-starters can be combined with the following fuses for short-circuit protection. Please find results for 500 V
AC in table 19 and for 415 V AC in table 20.
HF-Starter Iq
[kA]
SCPD Max. Current
[A]
Max. Voltage
[V AC]
HF0.6 35 Fuse 25 A gG 0.63 500
HF2.4 35 Fuse 25 A gG 2.4 500
HF9 35 Fuse 25 A gG 9
3)
500
Table 19 Type 1 coordination of HF-Starter with Fuses at 500 V AC
3) HF9 variants are able to switch 6.5 A in utilization category AC-53a and 9 A in AC-51.
HF-Starter Iq
[kA]
SCPD Max. Current
[A]
Max. Voltage
[V AC]
HF0.6 50 Fuse 25 A gG 0.63 415
HF2.4 50 Fuse 25 A gG 2.4 415
HF9 50 Fuse 25 A gG 9
4)
415
Table 20 Type 1 coordination of HF-Starter with Fuse 25 A gG at 415 V AC
4) HF9 variants are able to switch 6.5 A in utilization category AC-53a and 9 A in AC-51.
SCPD: MO132-10, maximal current 10 A
• Installing one HF9 with nominal current of 6.5 A
• Adding two HF2.4 with nominal current of 1.33 A results in 2.66 A
• Adding two HF0.6 with nominal current 0.41 A results in 0.82 A
• Calculation: 10 A - 6.5 A – ( 2 x 1.33 A) – (2 x 0.41 A) = 0.02 A
HF9: 6.5 A HF2.4: 1.33 A HF2.4: 1.33 A HF0.6: 0.41 A HF0.6: 0.41 A
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