FPU-32 Datasheet, PDF (1/1 Pages) Littelfuse – The FPU-32 Feeder Protection Unit provides integrated

Protection Relays & Controls
Feeder Protection–Standard
FPU-32 SERIES (PGR-7200)
Feeder Protection Unit
NOTE: The FPU-32 consists of the Feeder Protection Unit (pictured above) and
the MPU-CIM Current Input Module (not pictured).
Simplified Circuit Diagram
PHASE CT _A
GF CT B
PHASE CT
PHASE CT
MPU-CIM
(Current Input Module)
FPU-32
L1
(Feeder Protection Unit)
L2
Ordering Information
ORDERING NUMBER
COMMUNICATIONS
FPU-32-00-00
FPU-32-01-00
FPU-32-02-00
FPU-32-04-00
TIA-232
TIA-232 & RS-485
TIA-232 & DeviceNet™
TIA-232 & Ethernet
NOTE: One of the following is required: MPU-CIM-00-00 Current Input Module, or
MPU-CTI-RT-00 Current Input Module with ring-tonque terminals.
ACCESSORIES
Phase CTs
Ground-Fault CT
MPU-16A-Y92A-96N
REQUIREMENT
Recommended
Optional
Optional
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Description
The FPU-32 Feeder Protection Unit provides integrated
protection, metering, and data-logging functions. It is an excellent
choice for retrofitting and upgrading older relays because of its
compact size and ability to use existing CTs. The FPU-32 is
used to protect distribution feeders in processing, manufacturing,
petroleum, chemical, and wastewater treatment facilities.
Features & Benefits
FEATURES
IEC & IEEE overcurrent
protection curves
Two setpoint groups
Reduced overcurrent
mode
Data logging
BENEFITS
Definite and inverse time settings for system
coordination; prevents catastrophic failures
Create distinctive settings for maintenance or for
two different loads
Maintenance mode setting to reduce the risk of
arc-flash hazards
On-board 100-event recorder and remote data
logging helps with system diagnostics
Overload
Thermal protection for connected load
Phase loss/Phase reverse
(current)
Unbalance (current)
Communications
Detects unhealthy supply conditions
Prevents overheating due to unbalanced phases
Remotely view measured values, event records
& reset trips
Accessories
A
Phase Current Transformers
Phase CTs are required to detect phase
currents.
B
Ground-Fault Transformer
Zero-sequence current transformer detects
ground-fault current. Available with 5-A and 30-A
primary ratings for low-level pickup.
Specifications
Protective Functions
(IEEE Device Numbers)
Overload (49, 51)
Phase sequence (46)
Unbalance (46)
Phase loss (46)
Definite-time overcurrent (50, 51)
Inverse-time overcurrent (50, 51)
Ground fault (50G/N, 51G/N)
RTD/PTC temperature (49)
Input Voltage
Power-Up Time
Ride-Through Time
24-Vdc Source
AC Measurements

Frequency
Output Contacts
65-265 Vac, 30 VA; 80-275 Vdc, 25 W
800 ms at 120 vac
100 ms minimum
400 mA maximum
True RMS and DFT, Peak 32 samples/cycle and
positive and negative sequence of fundamental
50, 60 Hz
Three Form C
Approvals
CSA certified, CE, C-Tick (Australian), UL Recognized
Communications
TIA-232 (standard); TIA-485, DeviceNet™, Ethernet (optional)
Analog Output
4-20 mA, programmable
Conformally Coated Standard feature
Warranty
10 years
Mounting
(Control Unit)
Panel (standard)

Surface (with MPU-32-SMK converter kit)
(Current Input Module) DIN, Surface
Rev: 4-B-121214
Based on Manual Rev: 2-A-103014