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You are here: Home / Motor Control Gear / ABB Manual Motor Starts – MS450 – MS495

ABB Manual Motor Starts – MS450 – MS495

ABB Manual Motor Starters MS450 MS495The MS450 manual motor starters covers the range from 15 kW (400 V AC) / 32 A to 22 kW (400 V AC) / 50 A in a width of 55 mm. The MS495 is for the protection of bigger motors up to 55 kW (400 V) / 100 A in a width of 75 mm.

Manual motor starters (MMS) are protection devices for the main circuit. They combine motor control and protection in a single device. MMS are used mainly to switch motors manually ON/OFF and protect them and the installation fuse less against short-circuit, overload and phase failures. Fuse less protection with a manual motor starter saves costs, space and ensures a quick reaction under short-circuit condition, by switching off the motor within milliseconds.

Further features are the build-in disconnect function, temperature compensation, trip-free mechanism and a rotary handle with a clear switch position indication. The manual motor starter is suitable for three and single-phase applications. The handle is lockable to protect against unauthorised changes. Auxiliary contacts, signalling contacts, undervoltage releases, shunt trips, three-phase busbars, power in-feed blocks are available as accessory.

Rated operational power

400 V
AC-3

Setting range Short-circuit breaking capacity ICS at
400 V AC
Rated instantaneous short
circuit 
current setting li
Type Order code

Weight

(1 pce)

kW A kA A kg
MS450 manual motor starter
15.8 28.0 … 40.0 25 520.00 MS450-40 1SAM450000R1005 1.047
22 36.0 … 45.0 25 585.00 MS450-45 1SAM450000R1006 1.039
22 40.0 … 50.0 25 650.00 MS450-50 1SAM450000R1007 1.027
MS495 manual motor starter
30 45.0 … 63.0 25 819.00 MS495-63 1SAM550000R1007 2.247
37 57.0 … 75.0 25 975.00 MS495-75 1SAM550000R1008 2.253
45 70.0 … 90.0 25 1170.00 MS495-90 1SAM550000R1009 2.280
55 80.0 … 100.0 25 1235.00 MS495-100 1SAM550000R1010 2.295

 

Technical Data

Type MS450, MS495, MS497
Standards IEC/EN 60947-2, IEC/EN 60947-4-1, IEC/EN 60947-1
Rated operational voltage Ue 690 V AC / 450 V DC
Rated frequency 50/60 Hz
Trip class 10
Number of poles 3
Duty time 100 %
Rated impulse withstand voltage Uimp 6 kV
Rated insulation voltage Ui 690 V AC

Short-circuit breaking capacity and back-up fuses

lCS Rated service short-circuit breaking capacity

lCU Rated ultimate short-circuit breaking capacity

ICC Prospective short-circuit current at installation location

Type 240 V AC 400 V AC 440 V AC 500 V AC 690 V AC

ICS

kA

ICU

kA

gG, aM

A

ICS

kA

ICU

kA

gG, aM

A

ICS

kA

ICU

kA

gG, aM

A

ICS

kA

ICU

kA

gG, aM

A

ICS

kA

ICS

kA

gG, aM

A

Short-circuit protection MS450
MS450-40

No back-up fuse required up to

ICC = 100 kA

25 50 160 15 50 125 5 10 100 2 4 63
MS450-45 25 50 160 15 50 125 5 10 100 2 4 63
MS450-50 25 50 160 15 50 125 5 10 100 2 4 80

MS450: No need for back-up fuse in networks with a prospective current of up to 50 kA at 400 V.

With an approbiate 160 A type gG fuse the device can be used in a network with a prospective current of up to 100 kA.

Short-circuit protection MS495
MS495-40 No back-up fuse required up to ICC = 100 kA 25 50 125 20 50 125 6 12 125 3 6 63
MS495-50 25 50 125 20 50 125 6 12 125 3 6 80
MS495-63 25 50 160 20 50 160 6 12 160 3 6 80
MS495-75 25 50 160 20 50 160 6 8 160 3 5 100
MS495-90 25 50 160 20 50 160 6 8 160 3 5 125
MS495-100 25 50 160 20 50 160 6 8 160 3 5 125

MS495-40: No need for back-up fuse in networks with a prospective current of up to 50 kA at 400 V.

With an approbiate 125 A type gG fuse the device can be used in a network with a prospective current of up to 100 kA.

MS495-100: No need for back-up fuse in networks with a prospective current of up to 50 kA at 400 V.

With an appropriate 160 A type gG fuse the device can be used in a network with a prospective current of up to 100 kA.

General Technical Data

Type MS450 MS495
Pollution degree 3
Phase loss sensitive Yes
Ambient air temperature
Operation Open – compensated without derating -20 … +60 °C
Open -20 … +70 °C
Enclosed -20 … +35 °C
Storage -50 … +80 °C
Ambient air temperature compensation Continuous
Maximum operating altitude permissible 2000 m
Resistance to shock acc. to IEC 60068-2-27 25 g / 11 ms –
Resistance to vibrations acc. to IEC 60068-2-6 2 g / 5-150 Hz
Mounting position Position 1-6 (optional for single mounting)
Mounting DIN-rail 35 mm (EN 60715) DIN-rail 15 mm / 75 mm (EN 60715)
Minimum distance to other units same type Horizontal 0 mm 0 mm
Vertical – up to 240 V – 50 mm
Vertical – up to 440 V – 70 mm
Vertical – up to 500 V – 110 mm
Vertical – up to 690 V – 150 mm
Vertical 50 mm –
Minimum distance to electrical conductive board Horizontal 10 mm –
Horizontal – up to 500 V – 10 mm
Horizontal – up to 690 V – 30 mm
Vertical – up to 240 V – 50 mm
Vertical – up to 440 V – 70 mm
Vertical – up to 500 V – 110 mm
Vertical – up to 690 V – 150 mm
Vertical 50 mm –
Degree of protection Enclosure / terminals IP20

 

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