Grundfos NBE - Page 11

6.4.3 Mains connection, enclosures A4 and A5
Enclosure
Torque Nm [ft-lb]
Mains Motor Protective earth Relay
A4 1.8 (1.3) 1.8 (1.3) 3 (2.2) 0.6 (0.4)
A5 1.8 (1.3) 1.8 (1.3) 3 (2.2) 0.6 (0.4)
1. Connect the earth conductor to terminal 95 (PE). See the figure
below.
2. Connect the mains conductors to terminals 91 (L1), 92
(L2) and 93 (L3) of the mains plug.
3. Insert the mains plug into the socket marked "MAINS".
4. Fix the mains cable with a cable clamp.
TM039017
Mains connection, A4 and A5
For single-phase connection, use L1 and L2.
6.4.4 Motor connection, enclosures A4 and A5
1. Connect the earth conductor to terminal 99 (PE). See the figure
below.
2. Connect the motor conductors to terminals 96 (U), 97 (V) and
98 (W) of the motor plug.
3. Insert the motor plug into the socket marked "MOTOR".
4. Fix the screened cable with a cable clamp.
TM039018
Motor connection, A4 and A5
6.4.5 Mains connection, enclosures B1 and B2
Enclosure
Torque Nm [ft-lb]
Mains Motor Protective earth Relay
B1 1.8 (1.3) 1.8 (1.3) 3 (2.2) 0.6 (0.4)
B2 4.5 (3.3) 4.5 (3.3) 3 (2.2) 0.6 (0.4)
1. Connect the earth conductor to terminal 95 (PE). See the figure
below.
2. Connect the mains conductors to terminals 91 (L1), 92
(L2) and 93 (L3).
3. Fix the mains cable with a cable clamp.
TM039019
Mains connection, B1 and B2
For single-phase connection, use L1 and L2.
6.4.6 Motor connection, enclosures B1 and B2
1. Connect the earth conductor to terminal 99 (PE). See the figure
below.
2. Connect the motor conductors to terminals 96 (U), 97
(V) and 98 (W).
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English (US)