Solid State Relays
Accessories.POWER
Type MS1...
• Rated operational voltage:
115, 230 or 400 VACrms
• Supply output: 14 VDC @ Imax. = 110 mA
• Short-circuit protected
• 5 A SPST relay output
• LED indication for power supply on and relay on
• Insulation: 2000 Vrms/4 mm
• H2 housing
Product Description
Ordering Key
Power supply unit with built-in
control relay for motor con-
trollers type RSC/RSO and
RTC/RTO.
Motor controller
Supply unit
Index no.
Rated operational voltage
Type
Index no.
Rated operational voltage
MS: Supply unit for
motor controller
1
115: 115 VACrms
230: 230 VACrms
400: 400 VACrms
Rated operational voltage
115 VACrms
230 VACrms
400 VACrms
MS 1 115
MS 1 230
MS 1 400
MS 1 400
Type Selection
Selection Guide
General Specifications
Rated operational voltage
(terminals 21 & 22)
Operational frequency range
Environment
Degree of protection
Pollution degree (IEC 60664)
Overvoltage category
Indication for
Power supply ON
Relay ON
Approval
CE-marking
MS 1 115
MS 1 230
MS 1 400
115 VACrms
45 to 65 Hz
230 VACrms
45 to 65 Hz
400 VACrms
45 to 65 Hz
IP 20 B
3
III
IP 20 B
3
III
IP 20 B
3
III
LED, green
LED, yellow
CSA
Yes
LED, green
LED, yellow
CSA
Yes
LED, green
LED, yellow
CSA
Yes
MS 1 ...
Supply Specifications
Operational voltage range
Voltage interruption
MS 1 115
MS 1 230
MS 1 400
103 to 126 VACrms
≤ 40 ms
207 to 253 VACrms
≤ 40 ms
360 to 440 VACrms
≤ 40 ms
Input Specifications
Relay pick-up voltage
Relay drop-out voltage
Max. input voltage
Input impedance
Output Specifications
≤ 8.0 VDC
≥ 0.6 VDC
≤ 21.2 VDC
640 Ω
Supply output range
Rated DC output voltage
@ 110 mA (terminals 1 & 4)
Relay output SPST
(terminals 23 & 24)
AC 1
AC 15
DC 1
DC 13
Thermal Specifications
Isolation
Operating temperature
Storage temperature
Rated isolation voltage
Supply to electronic circuit
Rated impulse withstand
voltage
Wiring Diagram
-20° to +50°C (-4° to +122°F)
-50° to +85°C (-58° to +185°F)
10 to 30 VDC
14 VDC
5 A, 250 VAC
2 A, 250 VAC
5 A, 24 VDC
3 A, 24 VDC
≥ 2000 VACrms
4000 Vp (1.2/50 µs)
Functional Diagram
Relay output
Rated DC output voltage
Control input
Power supply
MS 1 ...
Applications
The MS1.. power supply connected to a motor controller
(RSC) for soft starting/soft stopping of an induction motor.
The MS1.. power supply connected to a motor controller
(RTC) for dynamic braking of an induction motor.
Pilot voltage
1/L1 3/L2 5/L3
2/T1 4/T2 6/T3
* Mechanical
interlock
*
Start/stop of RSC:
Start: Activate S1 until the
motor is fully on
Stop: Activate S2
For a 400 V application the following components are recommended:
S1 closed:
Motor is running
Fuses:
F2 - F3 FERRAZ
S1 opened:
Motor brakes and stops
RTO 1210:
6.9 gRB 10-16
Varistors:
S20K420 Siemens
RTO 1225:
6.9 gRB 10-25
RC:
PMR 209 Rifa 47 Ω/1.1 µF
RTO 1250:
6.921CP gRC 22 x 58/50
Aux.
relay
Motor Brake
relay relay
MS 1 ...
Dimensions
Housing Specifications
Weight
Housing material
Mounting
Terminals
Mounting screws
Mounting torque
All dimensions in mm
Approx. 250 g
Noryl, black
DIN rail
M 3.5
≤ 0.8 Nm