Fusible Switch Combination Starter Units
Class 8998
1B Wiring and 1 N.O. and 1 N.C. Auxiliary Interlock (Standard)
Full Voltage Non-Reversing
|
Maximum Horsepower At |
NEMA |
Switch |
Unit Type |
Space |
No. of |
|||
|---|---|---|---|---|---|---|---|---|
|
208 V |
240 V |
480 V |
600 V |
|||||
|
5 |
5 |
— |
— |
1 |
30 |
NC413 |
1 |
3 |
|
— |
— |
10 |
10 |
30 |
NC414 |
|||
|
7-1/2 |
7-1/2 |
— |
— |
60 |
NC415 |
|||
|
7-1/2 |
7-1/2 |
— |
— |
1 |
60 |
NC416 |
1-1/2[2] |
3 |
|
— |
— |
10 |
10 |
30 |
NC417 |
|||
|
10 |
15 |
— |
— |
2 |
60 |
ND411 |
1 |
3 |
|
— |
— |
25 |
25 |
60 |
ND412 |
|||
|
10 |
15 |
— |
— |
2 |
60 |
ND413 |
1-1/2[2] |
3 |
|
— |
— |
25 |
25 |
60 |
ND414 |
|||
|
20 |
25 |
— |
— |
3 |
100 |
NE416 |
1-1/2 |
3 |
|
25 |
30 |
— |
— |
200 |
NE417 |
3 |
||
|
— |
— |
50 |
50 |
100 |
NE418 |
1-1/2 |
||
|
40 |
50 |
— |
— |
4 |
200 |
NF409 |
3-1/2 |
3 |
|
— |
— |
100 |
100 |
200 |
NF410 |
|||
Full Voltage Reversing
|
Maximum Horsepower At |
NEMA |
Switch |
Unit Type |
Space |
No. of |
|||
|---|---|---|---|---|---|---|---|---|
|
208 V |
240 V |
480 V |
600 V |
|||||
|
5 |
5 |
— |
— |
1 |
30 |
OC417 |
1-1/2 |
3 |
|
7-1/2 |
7-1/2 |
— |
— |
60 |
OC418 |
|||
|
— |
— |
10 |
10 |
30 |
OC419 |
|||
|
10 |
10 |
— |
— |
2 |
60 |
OD409 |
2 |
3 |
|
— |
— |
25 |
25 |
60 |
OD410 |
|||
Two-Speed, Constant Hp, Full Voltage Non-Reversing
|
Maximum Horsepower At |
NEMA |
Switch |
One Winding (Consequent Pole) |
Two Winding (Separate Winding) |
No. of Thermal Units Required[1] |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
|
208 V |
240 V |
480 V |
600 V |
Unit Type No. |
Space Factor |
Unit Type No. |
Space Factor |
|||
|
5 |
5 |
— |
— |
1 |
30 |
QC447 |
2 |
QC450 |
2 |
6 |
|
5 |
5 |
— |
— |
60 |
QC448 |
QC450 |
||||
|
— |
— |
7-1/2 |
7-1/2 |
30 |
QC449 |
QC452 |
||||
|
7-1/2 |
10 |
— |
— |
2 |
60 |
QD437 |
2 |
QD439 |
2 |
6 |
|
— |
— |
20 |
20 |
60 |
QD438 |
QD440 |
||||
Two-Speed, Constant or Variable Torque, Full Voltage Non-Reversing
|
Maximum Horsepower At |
NEMA |
Switch |
One Winding (Consequent Pole) |
Two Winding (Separate Winding) |
No. of Thermal Units Required[1] |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
|
208 V |
240 V |
480 V |
600 V |
Unit Type No. |
Space Factor |
Unit Type No. |
Space Factor |
|||
|
7-1/2 |
7-1/2 |
— |
— |
1 |
30 |
QC441 |
2 |
QC444 |
2 |
6 |
|
7-1/2 |
7-1/2 |
— |
— |
60 |
QC442 |
QC445 |
||||
|
— |
— |
10 |
10 |
30 |
QC443 |
QC446 |
||||
|
10 |
15 |
— |
— |
2 |
60 |
QD433 |
2 |
QD435 |
2 |
6 |
|
— |
— |
25 |
25 |
60 |
QD434 |
QD436 |
||||
note
Units are wired for 480 V unless 240 V is stated on order.
The 480 V control circuit transformer is reconnectable for 240 V.
For 240 V and 480 V, form FT is used. For other voltages, form SY74
must be used.
Refer to catalog to get
NEMA 12, add form N12 to unit.
Fusible
starters Sizes 1–3 using Class H fuse clips have a short circuit
rating of 5,000 AIR @ 600 V. Size 4 starters using Class H are rated
10 kAIR @ 600 V. If Class R fuse clips are required, order field installable
kit from Digest. Fuses are not included.