Home » Littelfuse MPU-32-01-01, MPU-32 Series, Motor Protection Unit, 65-265VAC/80-275DC, TIA-232 & TIA-485, Onboard inputs for 1-A phase CTs
Littelfuse

Littelfuse MPU-32-01-01, MPU-32 Series, Motor Protection Unit, 65-265VAC/80-275DC, TIA-232 & TIA-485, Onboard inputs for 1-A phase CTs

In stock
SKU: MPU-32-01-01
$6,497.77
Rated voltage

Use this text to encourage communication or promote sharing on social networks.

You can also add links

The MPU-32 series Motor Protection Unit is used to provide current and temperature-based protection, metering, and datalogging for three-phase, low-voltage, medium-horsepower induction motors. This relay is ideal for retrofitting and upgrading obsolete or aging motor protection using existing CTs. The MPU-32 can be programmed using the front-panel operator interface, the TIA-232 port, or an optional communications network. See the PMA Family of Panel Mount Adapter Kits to replace common obsolete relays.

 Motor Protection Unit

• Three ac-current inputs
• Earth-leakage-CT input
• Programmable digital input
• 24 V dc source for digital input
• Programmable 4–20-mA analog output
• Onboard temperature-sensor input
• 100-Ω-Platinum RTD or PTC
• Three programmable output relays
• Local RS-232 communications, optional network communications
• PC-interface software (SE-Comm-RIS)
• 4 line x 20 character backlit LCD display
• Keypad for programming and display selection
• 4 LEDs; 1 user programmable

Pre-order 6-8 Weeks

Specifications

Protective Functions (IEEE Device Numbers) Overload (49, 51), Phase reverse (current) (46), Overcurrent (50, 51), Jam, Ground fault (50G/N, 51G/N), PTC overtemperature (49), RTD temperature (38, 49), Unbalance (current) (46), Starts per hour (66), Differential (87), Phase loss (current) (46), Undercurrent (37)
Input Voltage 65-265 V ac, 25 VA; 80-275 V dc, 25 W
Power-Up Time 800 ms at 120 V ac
Ride-Through Time 100 ms minimum
24-Vdc Source 100 mA maximum
AC Measurements True RMS and DFT, Peak, 16 samples/cycle, and positive and negative sequence of fundamental
Frequency 50, 60 Hz or ASD
Output Contacts Three Form C programmables
Communications TIA-232 (standard); TIA-485, DeviceNet™, Ethernet (optional)
Analog Output 4-20 mA, programmable
Conformally Coated Standard feature
Warranty 10 years
Control Unit Mounting Panel (standard), Surface (with MPU-32-SMK converter kit)
Current Input Module Mounting DIN, Surface
Certification & Compliance
CSA CSA, Canada and USA
(CSA C22.2 No. 14, CSA C22.2 No. 213-M1987 (RTD module only), CSA E60079-15:02 (RTD module only))
CE EN 60255-26, IEC 61010-1
UL UL Recognized (UL 508, UL 1053, UL 60079-15 (RTD module only))
RCM RCM