Thermal setting range (Amps) 3-phase horsepower ratings Catalog Number
List price
230V 480V 575V
11 - 16 5 10 15 MS450-16 $450
14 - 20 7.5 15 20 MS450-20 $450
18 - 25 10 20 25 MS450-25 $450
22 - 32 10 25 30 MS450-32 $450
28 - 40 15 30 40 MS450-40 $510
36 - 45 15 30 40 MS450-45 $510
40 - 50 20 40 50 MS450-50 $510
11 - 16 5 10 15 MS497-16 $450
14 - 20 7.5 15 20 MS497-20 $450
18 - 25 10 20 25 MS497-25 $450
22 - 32 10 25 30 MS497-32 $450
28 - 40 15 30 40 MS497-40 $562.50
36 - 50 20 40 50 MS497-50 $562.50
45 - 63 25 50 60 MS497-63 $562.50
57 - 75 25 60 75 MS497-75 $600
70 - 90 30 75 100 MS497-90 $615
80 - 100 40 75 100 MS497-100 $690
ACCESSORIES FOR MS45x / MS49x
DESCRIPTION Catalog Number List price
1 NO & 1 NC Auxiliary contact blocks, side mount
2 NO Auxiliary contact blocks, side mount
2 NC Auxiliary contact blocks, side mount
HKS4-11
HKS4-20
HKS4-02
$36
1 NO & 1 NC Auxiliary contact blocks, front mount
1 CHANGEOVER Auxiliary contact blocks, front mount
HK4-11
HK4-W
$36
110 - 120VAC Undervoltage trip
208VAC Undervoltage trip
230 - 240VAC Undervoltage trip
400VAC Undervoltage trip
480VAC Undervoltage trip
UA4-120
UA4-208
UA4-240
UA4-400
UA4-480
$93
Voltage continuous 50 - 60 Hz
20 - 24 Shunt trip
30 - 110
210 - 240
350 - 415
Voltage 5 sec. Max.50 - 60 Hz, DC
20 - 70 Shunt trip
70 - 190
190 - 330
330 - 500
AA4-24
AA4-110
AA4-240
AA4-415
$93
MS450 Busbar for direct mounting of contactors A30/A40
MS450 Busbar for direct mounting of contactor A50
MS497 Busbar for direct mounting of contactors A50/A63/A75
MS497 Busbar for direct mounting of contactors A95/A110
BEA40/450
BEA50/450
BEA75/495
BEA110/495
$54
$63
$120
$180
Short circuit trip 1NO & 1NC - required for UL508 Type E applications SK4-11 $60
MS49x Type E Terminal - required forUL508 Type E applications DX495 $45