Msr-Hd-P-V-1p-2-0-M-I
Artikelnr.: 700500
Fully equipped, digital, microprocessor-based motor protection relay with 10 PT 100 inputs.
Separate alarm and trigger relay for separate detection and MODBUS communication. Occurring
Faults that are not recognized by the soft starter are recognized by the MSR. This then opens the
Line contactors. With a high short-circuit current that is above the breaking capacity of the contactor,
the line contactor remains switched on so that the upstream fuse can switch off the fault current.
integrated contacts
Programmable multifunction inputs and outputs (optically isolated)
- 4 digital inputs
- 4 changeover contacts 8A / 250 V.
- 4 analog outputs
- 4 analog inputs
- Modbus
- LEDs on, stop, start, run
- LED triggering, alarm, relay, A, B,
The motor protection relay has the following protective functions:
• (51R) Overcurrent (overload) with adjustable delay
• (50) Overcurrent (short circuit) with adjustable delay (only in connection with circuit breaker and
Protective transformers)
• (37) undercurrent with adjustable delay
• (46) current unbalance
• (27) undervoltage with adjustable delay
• (59) Overvoltage with adjustable delay
• (32L) under current release with adjustable delay
• (50G) earth fault alarm with adjustable delay
• (50N) earth fault tripping with adjustable delay
• (47) phase error
• (47) phase sequence
• (48) Start time too long
• (66) Too many starts
• (51L) load increase
• (49/51) Thermal overload
• (49S / 51) blocked rotor
• (49R) Motor overtemperature - thermistor input (Pt100)
• (55) Low power factor
• (86/94) External error
• (3) Internal error
• (3) Communication error
MSR-HD and MPS 3000 are identical units. It is a motor protection relay.
