baltur TBG 450LX MC, Instruction Manual For Installation, Use And Maintenance

Page: 67 / 96

• Install a suitable disconnecting switch and protection fuses for each
power supply line of the burner, following the indications in the dia -
gram on the side and in the table 2.
Sezionatore_fusibili
fig2
PROTECTION WITH DISCONNECTING SWITCH AND FUSES
TABLE 2
Connection 3~400V and 1+N ~230V 50 Hz
TBG 450 ME TBG 510 ME TBG 650 ME TBG 750 ME
1~230V 50
Hz
3~400V 50
Hz
1~230V 50
Hz
3~400V 50
Hz
1~230V 50
Hz
3~400V 50
Hz
1~230V 50
Hz
3~400V 50
Hz
Motor connection - Y - Y - Δ/Y - Δ/Y
Motor nom curr A - 16.5 A - 19.9 A - 26.8 A - 33 A
Motor thermal protection calibration (F1) A - 18 A - 22 A - 17 A - 21 A
Connection line minimum section (S1,
S2) 4)
sq.mm 1,5 4 1,5 6 1,5 10 1,5 10
Disconnecting pole number 1+N 3 1+N 3 1+N 3 1+N 3
Fuse size 5) A 6 50 6 63 6 50 6 63
Fuse type gG gG gG gG gG gG gG gG
Ultimate rated short-circuit breaking
capacity (Icu)
kA ≥ 100 ≥ 100 ≥ 100 ≥ 100 ≥ 100 ≥ 100 ≥ 100 ≥ 100
Fuse intervention time Ti 6) sec 0,2 0,07 0,2 0,07 0,2 0,07 0,2 1
Fuse intervention time Ti 7) sec 5 5 5 5 5 5 5 5
4)
Sections S1 and S2 are calculated for PVC insulated copper conductors, class 5 or higher, at an ambient temperature of 40° C, considering single cables
placed side by side and not wound. Provide for any downgrades in case of different conditions.
The sections of connection cables must be chosen based on the distance from the connection point so that the voltage drop at the burner panel terminals
does not exceed 4% with respect to the nominal value.
5)
The protection devices against overcurrents have been calculated at an ambient temperature of 30° C. Provide for any downgrades in case of different
conditions.
6)
TT SYSTEMS:
Ti - 0.2 s (230V single-phase)
Ti - 0.07 s (400V three-phase) for I<32A
Ti - 1 s (400V three-phase) for I>32A
7)
TN SYSTEMS:
Ti - 5 s (230V single-phase and 400V three-phase)
ENGLISH
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0006160271_202007