Technical data

124
Protective Devices
Manual Motor Starters Z-MS
• Reliable protection in case of thermal overload and short circuit
• Suitable for installation in compact distribution boxes
• Contact position indicator red - green
• Main field of application: switching and protection of three-phase AC
motors with power ratings up to 15 kW (380/400 V) and other consumers up
to 40 A
• Also suitable as main switch, isolating characteristics according to
IEC/EN 60947
• All manual motor starters with thermal overload tripping and magnetic
short-circuit tripping
• Terminals and accessories compatible with CLS6, Z-A40, PFIM etc.
Technical Data
Dimensions (mm)
Connection diagram
2-pole 3-pole
General
Terminal capacity 1 - 25 mm
2
Busbar thickness 0.8 - 2 mm
Mechanical endurance 20.000 operating cycles
Shock resistance (shock duration 20 ms) 20 g
Ambient temperature open -25 ... + 50°C
hermetically enclosed -25 ... + 40°C
Resistance to climatic conditions
- humidity and heat, constant, according to IEC 68-2-3
- humidity and heat, periodical, according to IEC 68-2-30
Weight approx. 244/366 g
Degree of protection IP20
Main Current Paths
Rated insulation voltage U
i
440 V
Rated peak withstand voltage U
imp
4 kV
Rated short circuit breaking capacity I
q
10 kA
Thermal current I
thmax
= I
emax
40 A
Electrical endurance AC3 at I
e
6000 operating cycles
Motor switching capacity AC3 400 (415) V
Power loss per contact 2.3W (1.6-10A); 3.3W (16A); 4.5W (25-40A)
Auxiliary switch Z-AHK/Z-NHK
Rated insulation voltage U
i
440 V
Thermal current I
th
8 A
Rated operational current I
e
250 V 6 A
AC 13 440 V 2 A
Max. back-up fuse for short-circuit protection 4 A (gL, gG) CLS6-4/B-HS
Terminal capacity (1 or 2 conductors) 0,75 ... 2.5 mm
2
Moisture-Proof Enclosure 4 MU IP54, Z-MFG
Reliable power loss of incorporated devices 17W (e.g Z-MS-40/3+Z-USA/230)
Connection
1-phase / 2-pole 1-phase / 3-pole 3-phase / 3-pole
Magnetic release responding current (typ.)
referring to setting range end value . . . . . . . . . . .
Ue = 400 V~
Ie = 10 - 16 A
Iq = 10000 A