Littelfuse PGR-7200 User Manual

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 B

PHASE CT

PHASE CT

GF

CT

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 BENEFITS

IEC & IEEE overcurrent
protection curves

Two setpoint groups

Reduced overcurrent
mode

Data logging

Overload Thermal protection for connected load

Phase loss/Phase reverse
(current)

Unbalance (current) Prevents overheating due to unbalanced phases

Communications

Definite and inverse time set tings for system
coordination; prevents catastrophic failures

Create distinctive set tings 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

Detects unhealthy supply conditions

Remotely view measured values, event records
& reset trips

MPU-CIM

(Current Input Module)

FPU-32

L1

L2

(Feeder Protection Unit)

Ordering Information

ORDERING NUMBER COMMUNICATIONS

FPU-32-00-00 TIA-232

FPU-32-01-00 TIA-232 & RS-485

FPU-32-02-00 TIA-232 & DeviceNet™

FPU-32-04-00 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 REQUIREMENT

Phase CTs Recommended

Ground-Fault CT Optional

MPU-16A-Y92A-96N Optional

Accessories

A

B

Phase Current Transformers

Phase CTs are required to detect phase
currents.

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)

Input Voltage 65-265 Vac, 30 VA; 80-275 Vdc, 25 W
Power-Up Time 800 ms at 120 vac
Ride-Through Time 100 ms minimum
24-Vdc Source 400 mA maximum
AC Measurements True RMS and DF T, Peak 32 samples/cycle and

positive and negative sequence of fundamental

Frequency 50, 60 Hz
Output Contacts Three Form C
Approvals CSA certified, CE, C-Tick (
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

Overload (49, 51)
Phase sequence (4 6)
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)

Australian)

© 2013 Littelfuse Protection Relays & Controls
Littelfuse.com/fpu-32

Rev: 4-A-050213

Based on Manual Rev 1