Fairford Electronics QFE Series User manual

Fairford Electronics • Innovation in Soft Start Technology
Bristow House, Gillard Way, Lee Mill Industrial Estate, Ivybridge, PL21 9GG. United Kingdom Tel: [phone] • Fax: [phone] • Email: [e-mail] • www.fairford.com
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QFEManual
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Fairford Electronics • Innovation in Soft Start Technology
Bristow House, Gillard Way, Lee Mill Industrial Estate, Ivybridge, PL21 9GG. United Kingdom Tel: [phone] • Fax: [phone] • Email: [e-mail] • www.fairford.com
Sections
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TitlePageNumber
QFEBasicGuide3
QFE‐O 11
MechanicalInstallation17
ElectricalInstallation27
ApplicationsManual5ϭ
EMCManual7ϰ
ApplicationsData8Ϭ
FlagData8ϵ
BitParameters9Ϯ
TechnicalHints1Ϭϵ 
ProgrammingGuide11Ϯ
ModbusProtocolManual1ϳϴ
CommunicationsBrochure1ϴϵ
KeypodBrochure19ϭ
CommunicationsApplicationNote19Ϯ

1 M-8588-F 110620
Basic Guide to the
Installation and Operation
Of the Soft StarterQfe
Soft Starters and Energy
Optimising Soft Starters
Guide to contents - applicable to
5MC software V56
1 Mechanical Outlines
Referring to the appropriate size of QFE, mount the QFE ensuring that correct clearances are maintained
for adequate ventilation and operation of the QFE.
2 Wiring Diagrams
Referring to the appropriate Wiring Diagram, install the QFE electrical connections ensuring that the
correct control supply voltage is used and is within its specified operating limits as described on the prod-
uct specification
ACCESS
Caution: Always replace the cover panelon the unit after gainingaccess
to the electricalconnections.
The unit requires two AC supplies:
A 3 phase balanced Mains Supply to provide the source of power for the controlled motor.
A single phase supply: 115V/230V, 50Hz/60Hz, for the internal control circuitry.
IMPORTANT Ensure that the voltage selector switch position corresponds to
the control supply before you apply the control supply voltage.
ISOLATION
Caution: The QFE uses semiconductor devices in the main circuit and is not designed to provide
isolation. For this reason isolation means must be installed in the supply circuit in accordance with
the appropriate wiring and safety regulations.
The Mains Supply and the Control Supply each require protection. Although all units have electronic
overload protection, the installer should always place fuse protection between the unit and the Mains
Supply, not between the unit and the motor. Semiconductor fuses can be supplied for short circuit pro-
tection of the semiconductors.
3 Keypad operation and basic set-up
Refer to this, for familiarisation with the keypad controls of the QFE. Use the illustration of the Basic Menu
structure to find QFE menu items on the display.
4 Set-up examples
Set-up basic QFE operating parameters, if necessary, by following one or all of the examples described
here.
5 Product information
Refer to product information for details of Design Standards and Approvals, operating and storage limits
and other installation instructions.
Further Information
For further information about the QFE soft start motor controller, detailed QFE manuals and application
notes are available on the Fairford website http://www.fairford.co.uk, or from Fairford direct (see back
page for contact details).

2 M-8588-F 110620
1 Mechanical Outlines
Note 1: - Chassis size 2
To allow for larger cross sections of insulated
cable on models of QFE in chassis size 2,
extendedglandplatesareavailableasanoption.
Note 2: - Chassis size 3
When fitting the unit into a cabinet, allowance
mustbe made for90° opening ofthe hinged unit
doors.
Add 90mm for the left-hand door which has the
plastic moulding incorporating the control card
and keypad, and 30mm for the right hand door
i.e.90+ 675 +30=795mm as anoverallcabinet
opening.
Note 3: - Enclosures
When fitting a QFE into a cabinet, ventilation
must be provided if the heat output of the unit is
greater than the cabinet will dissipate.
Use the following formula to determine the fan
requirement. An allowance has been
incorporated into the formula so that the figure
for “Q” is the air delivery quoted in the fan
suppliers data.
An approximation of the heat produced by the
QFE (in Watts) can be made by multiplying the
full load line current by three. Exact figures for
unit full load current are in the QFE manual.
Q = 4 x Wt
( tmax - tamb )
520
340
265
500
250
Q = required volume of air (cubic metres per hour - m3/h)
Wt = heat produced by the unit and all other heat sources within the
enclosure (Watts)
tmax = maximum permissible temperature within the enclosure
(40ºC for a fully rated QFE)
tamb = temperature of the air entering the enclosure (ºC)
If you prefer to work in CFM, substitute ºF for ºC. Q is now in CFM.
Size3 QFE500 to QFE900
675
610
400
575
250 250
All dimensions in mm
Choice of Earth termination at
top or bottom of the unit
Mountings suitable for M10
fixings.
Unit weights:-
500 & 600Amp - 65Kg
750 & 900Amp - 72Kg
Allow clearance of:-
sides - see note 2
Top & bottom - 200mm
Front - 25mm
Size1 QFE9 to QFE146 Size2 QFE174 to QFE370
All dimensions in mm
Mounting Centres 250 x 500
suitable for M6 fixings
2 "keyholes" at top 2 open
slots at the bottom.
unit weights
174 & 202Amp - 16Kg
242 to 370Amp - 22Kg
Allow clearance of:-
15mm each side
75mm top & bottom
25mm front
420
222
195
380
150
125
400
All dimensions in mm
Mounting holes suitable for M6
fixings
Unit weights:-
9 to 44Amp 7.3Kg
59 to 146 Amp 8.3Kg
Allow clearance of:-
15mm each side
75mm top & bottom
25mm front

3 M-8588-F 110620
2 Wiring Diagrams
Use the control circuit with one of these power circuits
Note 1: Correction capacitors:
Power factor correction capacitors must NOT be positioned on the output of the power circuit.
Note 2: Fuse Selection:
Where semiconductor type fuses are required, they should be selected from the table in Section 5.
Note 3: The in-line configuration shown in Fig 2.3 requires that the firing mode be set to ‘0’.
Note 4: The In-Delta configuration as in Fig 2.4 requires that the Firing Mode be set to ‘1’.
An in-line contactor controlled by the starter MUST be used with the In-Delta firing mode.
Note 5: The bypass configuration as in Fig 2.5 is automatically detected as “Auto bypass” is set as default.
Note
ContactorK3 isrequiredfor the'Op-
eration in Bypass Power Circuit'
and is controlled by the program-
mable relay set as a 'Top of Ramp'
relay.
The Electronic control card is located underneath
thecoverintheSize1 and 2 unitsandinsidethehinged
door panel in Size 3 units. Connections shown in the
control circuit wiring diagram are made to the elec-
troniccontrol cardterminals as shownin fig.2.2below.
Programmable output,
Changeover contacts
Default: - Run Relay
Programmable output,
Changeover contacts
Default: Ramp
Complete
Programmable Input,
Control Input 1.
Default: Start/Stop
D5
J8 J9 J10
Relay
22 24 21 12 14 11 S0 S1
Micro-
controller
Relay
D5 (Green) indicates the presence
of the control supply.
Fig 2.2
Fig 2.1 Control circuit wiring
Control
Supply
Emergency
Stop
STOP
START
K2.1
K2 K1
K2.2
Electronic
control
card
S0, 00
S1
X2
X1
24
21
14
11
K3
Control
supply
card
Note: Extra X1 and X2 on Size 3 for fan supply
For this
configuration,
applying the
equation,
Ie(QFE)
allows lower current
rating QFE than
the motor.
Fig 2.3 Power circuit for
In-Line connection of
motors (see note 3).
Induction
Motor
1
L1
3
L2
5
L3
2
T1
4
T2
6
T3
EARTH
(Electrical
Ground)
Isolation and Protection
Switch-gear
(provided by the customer)
K1
Feeder
cables
Mains
Supply
Busbar
L1
L2
L3
Circuit
Contactor
Fig 2.4 Power circuit for In-Delta
connection of motors (see note 4).
Induction
Motor
U1
V1
V2
W2
W1
U2
In-delta connections for
correct rotation of motor
Terml Fwd Rev
T1
T2
T3
L1
L2
L3
W1
V1
U1
V2
U2
W2
V1
W1
U1
W2
U2
V2
EARTH
(Electrical
Ground)
Isolation and Protection
Switch-gear
(provided by the customer)
Feeder cables
Mains
Supply
Busbar
L1
L2
L3
Circuit
Contactor
K1
1
L1
3
L2
5
L3
2
T1
4
T2
6
T3
Fig 2.5 Power circuit for bypass
operation (see note 5).
Bypass
Contactor
Induction
Motor
EARTH
(Electrical
Ground)
Isolation and Protection
Switch-gear
(provided by the customer)
Feeder cables
Mains
Supply
Busbar
L1
L2
L3
Circuit
Contactor
K1
1
L1
3
L2
5
L3
2
T1
4
T2
6
T3
K3

4 M-8588-F 110620
3 Keypad operation and basic set-up
ALWAYS ENSURE THAT THE KEYPAD CABLE IS PLUGGED IN BEFORE APPLYING POWER TO THE UNIT
When wired as Fig 2.1,page 3, the QFE display will indi-
cate start up messages followed by ‘Stopped and ready’.
At this point:
•theQFEwill startthemotorwhen the keypad‘START/
STOP’ key is pressed but not when the START switch
as shown in Fig.2.1 is closed.
•the QFE parameters are set to factory default which
may not be ideal for the required application.
The examples in section 4 show how to set up some of
theessentialQFEoperating parametersusingthe keypad.
Once these are understood, other QFE settings, as
indicated in the programming Menu Structure below, can
be set in a similar manner (The corresponding default
settingsareshowninbrackets).Forthefullmenustructure,
refer to the QFE Manual.
*1 The “Firing mode” must be set to ‘1’ for the In-Delta configuration.
*2 The “Cooling time” is dependant on the Model range, Duty rating and Heatsink temperature.
*3 The “Rated current” setting is for reference only and is not user adjustable.
Selects or deselects optimising (provided keypad control is selected).
Returns user to previous menu level and
cancels any changes made to settings.
Allows user to move up a menu group
or increment a setting value.
Allows user to move down a menu
group or decrement a setting value.
Takes user to next menu level and enters
any changes made to settings.
Starts or stops motor (provided keypad control is selected).
Keypadcontrols
Menu structure Typical Keypad menu. Contact Fairford Electronics Ltd for details.
Stopped and ready
1:
Settings
Default (keypad)
Small Pump
Large Pump
Conveyor
Low Inertia Fan
High Inertia Fan
Recip Compressor
Screw Compressor
Rotary Compressor
Crusher
Grinder
Hi torque start
Motor gen set
Aerator
Flywheel press
Moulder
Default Auto
Current
Optimise rate (5)
Kickstart (Off)
Kickpedestal (75%)
Kicktime (25cycles)
Dwell time (5s)
Low volts stop (Off)
Contactor delay (160ms)
Trip sensitivity (1)
Station number (1)
(0) *1
Stop smoothing (5)
Cooling (On)
Cooling time *2
Line contactor (On)
Thermistor Trip (Off)
P126Comms Trip (On)
Optimise+(Off)
Firing mode Full
Full +optimise (Default)
Start +bypass
Phase loss only
Power
Protection (full +optimise)
Current
P27PeakStart
P40 supply volts (416)
Real PF
P22 Delay angle
P23Maxangle
P20 Reference PF
P21 Internal PF
Temperature I/P
Enter password
Change password
Save parameters
Power on parameters
Default parameters
Applications
Auto features
Basic
Advanced
Monitoring
Permanent store
Permanent store
Password
Password
Inputs
Outputs
Parameters
Trips
Auto features
Basic
Settings
Auto Jog (Off)
Auto Pedestal (Off)
Auto end start (Off)
Auto stop (Off)
Auto end stop (Off)
Auto bypass (On)
Auto 3MC (On)
Auto Ramp (Off)
Auto All >> Off
Stop smoothing (Off)
ENTERENTER ENTER ENTER
Rated current (Ie) *3
Low current (Off)
Low amps level (0.1xFLC)
Low amps time (50cycles)
C/L time out (On)
Current limit (3.5xIe)
Limit time out (30s)
Shearpin (On)
Shearpin level (3.125xIe)
Shearpin time (100cycles)
Overload level (1.1xIe)
### #
Advanced
Monitoring
Disable starter?
Enable starter
Starting (Keypad)
Start pedestal (20%)
Start time (5s)
Stop pedestal (10%)
Stop time (0s)
Current limit (3.5xIe)
Power on Param
Protection (Full +Optimise)
Starter Disabled
1:qto Enable

5 M-8588-F 110620
4 Set-up examples
Starter Enable/Disable
An additional safety feature has been added so that following certain actions the starter will be disabled. It is strongly
recommended that before any changes to parameter values are made, that the starter is disabled via the Basic Menu.
Once disabled, the starter remains unable to drive the load, until it has been enabled via the Basic Menu, or the control
supply is removed and reapplied, or the 

key is pressed when prompted.
2 Setting the QFE for remote starting and stopping.
With‘Starter Disabled’ shownonthe display,
press ENTER key once.
With ‘Applications’ shown on the top line of
the display press 

key twice until ‘Basic’ is
shown at the top of the display.
Press ENTER once to select Basic menu.
Press 

key twice until ‘Starting’ is shown
at top of the display then press ENTER once
to select starting option menu.
With display now indicating ‘Starting’ on top
line press ENTER to toggle from ‘Keypad
Starting’ to ‘Remote Starting’ as shown on
bottom line of display.
At any of the above stages pressing #will
return the user to the previous menu.
The QFE will now start and stop remotely from the START and STOP switches shown in Figure 2.1, but will return to
keypad starting if the control supply on terminals X1 and X2 is removed. Alternatively, to return to keypad starting and
stopping, repeat the above procedure and select ‘Keypad Starting’ at step 5. To keep the remote start/stop setting
after removal of the control supply, the settings must be permanently saved (See 3 below).
ENTER
## #
ENTERENTERENTER
ENTER
1 Setting the QFE for large pump application
With ‘Starter Disabled’ shown on the display, press ENTER key once.
With ‘Applications’ shown on the top line of the
display press ENTER once.
With ‘Settings’ shown at the top of the display
press 

key three times until ‘Large pump’ is
shown at top of display.
Press ENTER once to select large pump. The
display will indicate the parameters changing in
short intervals.
Withthedisplaytoplineindicating‘Send to store?’,
pressENTER to savethe settingsfor alarge pump
to permanent store. Display will flash the message
‘Storing’ twice to indicate this has been done.
At any of the above stages pressing #will return
the user to the previous menu. The QFE will not start until the control display indicates ‘Stopped and ready’.
ENTER
## #
ENTERENTERENTER
3Permanently saving parameters set by user.
With ‘Starter Disabled shown on the display, press ENTER key once.
With ‘Applications’ shown on the top line of the
display press 

 key until ‘Permanent Store’ is
shown at top of display.
Press ENTER once to select Permanent Store
menu.
With ‘Save Param’ shown at top of display press
ENTER once to permanently save parameters.
Display will flash twice to indicate this has been
done.
At any of the above stages pressing #will return
the user to the previous menu.



Stopped and ready
1:To Enable
6
Applications
Auto features
Save parameter
Power on param
ENTER
##
ENTERENTER
Permanent store
Password


6 M-8588-F 110620
Document No TF0120 ‘Guide to Soft
Start Drive Product Information’,
describes the rating index and the
meaningofother IEC60947-4-2product
information in more detail. This is
available upon request from Fairford
Electronics Ltd.
5 Product information
5.1 Design standards and Approvals
IEC 60947-4-2; EN 60947-4-2 ‘AC Semiconductor Motor Controllers and Starters’.
ModelsQFEand QFE-G bearing theULListingmark, , are ULListed toU.S.andCanadiansafety standards.
5.2 Basic ratings
Index Ratings
In line with the stated IEC starting duties, starters of 242 Amps and above have an enforced off period of
7 minutes set as standard. During this period the display indicates “Stopped. Cooling”, and the starter will not
respond to a start signal.
Connector/ terminal Rated freq.
Rated operational voltage L1,L2,L3 230-460V AC rms
(-15% +10%) 400-575V AC rms (-15% +10%) 500-690V AC rms (-15% +10%)
Control supply voltage (Us) X1,X2 115V or 230V AC rms (-15% + 10%)
50/60Hz (±2Hz)
Control input voltage (Uc) S0,S1 12V/24VDC or 115/230VAC
Output relays 11,12,14 and 21,22,24 AC1 230V, 3A
Rated operational current(Ie) See Semiconductor Fuse types table in Section 5.3
Form designation Form 1
QFE range QFE-G range QFE-E range
Model name Ie (A) Standard operation
AC-53a: X-Tx: F-S Bypassed operation AC-53b: X-Tx: OFF-time
9A to
105A AC-53a: 5-4: 99-10 AC-53a: 3-35 :99-10 AC-53b: 5-4: 120 AC-53b: 3-35 :120
146A to
202A AC-53a: 4-6: 99-10 AC-53a: 3-35 :99-10 AC-53b: 4-6: 120 AC-53b: 3-35 :120
242A to
900A AC-53a: 4-6: 60-3 AC-53a: 3-35 :60-3 AC-53b: 4-6: 360 AC-53b: 3-35 : 360
QFE9 to
QFE105
QFE146 to
QFE202
QFE242 to
QFE900
'Current limit', 'Overload
level' and 'Overload delay'
settings may be adjusted to
limit overload currents in
accordance with the trip
curves shown here (See
Menu structure in Section 3
for default settings).
For motors with FLC's lower
than the rated current of the
QFEtheOverloadlevel'may
be adjusted using the
following formula:
Overload level =
Motor FLC x 1.1(A)
Note:The overload monitors
one of the phases only and
the 'Current Limit' level is
only active during motor
starting.
IMPORTANT
It is recommended that the
control supply is maintained
between starts to ensure the
integrity of the overload,
which will reset on it's
removal.
0.01
0.1
1
10
100
1000
123456789 10
Fault current ( Motor CurrentxN)
Seconds
to trip
Overload start point
Delay = 80
Delay = 30
Delay = 10
(Default)
Delay = 140
Å7.2 x FLC Shearpin Cutoff

7 M-8588-F 110620
5.3 Safety and installation.
Rated insulation voltage (Ui) 690V
Ingress Protection IP20
Pollution degree 3
Short circuit co-ordination Type 1
UL requires Recognized special purpose fuses (JFHR2)
for the protection of semi-conductor devices, rated 700
Vac, as indicated inTable 5.3, be used to obtian the short
circuit ratings required by UL.
Suitableforuse on a circuit capableofdeliveringnotmore
than the RMS Symmetrical Amperes indicated in Table
5.3atmaximum ratedoperationalvoltage,whenprotected
bySemiconductorFuse type, Manufactured by Company
and Mod. No. indicated in Table 5.3. Fuse rated 700 Vac,
Amps as indicated in Table 5.3.
These fuses are for short circuit protection of the
semiconductors and must be mounted externally by the
userbetween theunit and themainssupply, notbetween
the unit and the motor.
Table 5.3 Semiconductor Fuse types
5.4 Normal service conditions.
Ambient temperature 0°C to 40°C. Above 40°C de-
rate linearly by 2% of unit
FLC per °C to a maximum of 40% at 60°C.
Transport and Storage -25°C to +60°C (continuous), -25°C to +75°C (not exceeding 24 hours).
Altitude 1000m.
Above 1000m de-rate linearly by 1% of unit FLC per 100m to a maximum altitude of
2000m.
Humidity max. 85% non-condensing, not exceeding 50% at 40°C.
5.5 EMC Emission and Immunity levels
EMC compliance is in accordance with EN 60947-4-2 which refers to the following basic standards:
Note: EN 60947-4-2 is published as a harmonized standard under the European Council Directives in relation to
the electromagnetic compatability.
5.6 Control, Power and Earth terminations.
Control Terminations
ModelName Ie
(Arms)
Short
Circuit
Amp
RMS
(kA)
UL Recognized JFHR2 Fuses
Bussman
International
Inc.
Mod.No.
Ferraz
Mod.No.
6.6 URD
followed by
Amps
9A 5 170M3110 30 D08A 0063 63
16A 5 170M3110 30 D08A 0063 63
23A 5 170M3112 30 D08A 0100 100
30A 5 170M3112 30 D08A 0100 100
44A 5 170M311430 D08A 0160 160
59A 5 170M3115 30 D08A 0200 200
72A 10 170M3116 30 D08A 0250 250
85A 10 170M3116 30 D08A 0250 250
105A 10 170M3119 30 D08A 0400 400
146A 10 170M3119 30 D08A 0400 400
174A 10 170M3121 30 D08A 0500 500
202A 10 170M3121 30 D08A 0500 500
242A 10 170M411431 D08A 0500 500
300A 18 170M411431 D08A 0500 500
370A 18 170M4116 31 D08A 0630 630
500A 18 170M6113 33 D08A 0900 900
600A 30 170M6113 33 D08A 0900 900
750A 30 170M6116 33 D08A 1250 1250
900A 42 170M6116 33 D08A 1250 1250
QFE9
QFE16
QFE23
QFE30
QFE44
QFE59
QFE72
QFE85
QFE105
QFE146
QFE174
QFE202
QFE242
QFE300
QFE370
QFE500
QFE600
QFE750
QFE900
Application Note for fuse selection: APP00004
Basic standard Level
IMMUNITY IEC 61000-4-26kV contact or 8kVairdischarge
Severitylevel 3 IEC 61000-4-6140dBuV over 0.15-80MHz
IEC 61000-4-3 10V/m over 80 -1000MHz
IEC 61000-4-4 2kV/5kHz
IEC 61000-4-52kVline to ground and 1kVline to line
EMISSION EN 55011 Class A
Equipment Class A(Industrial)
Cable cross section
AWG mm2
All models -
Terminals
Terminal type Wire type
Min. Max. Min. Max.
Terminal tightening
torque
X1,X2,
S0,S1
11,12,14
21,22,24
Screw clamp
terminals
Solid or stranded.22 140.32.54.4 Ib.in.(0.5Nm.)

8 M-8588-F 110620
Control, Power and Earth terminations, continued
Power and Earth Terminations
To maintain approvals for cable connections, the Wire Terminals should be UL Listed or Recognised Wire
Connectors and Soldering Lugs, fitted to the wire with special Crimping Tools as indicated by the manufacturer.
* The conductor sizes indicated in the above table are the maximum allowed by UL for each chassis size. The
actual conductor used must comply with local wiring regulations
The owner, installer and user is responsible for the correct installation and use of the QFE and must
ensure that only qualified personnel install the QFE and that the installation, operation and maintenance
of the unit complies with the relevant Codes of Practice, Regulations and Statutory Requirements. The
Manufacturerorhis agent donotassumeanyliability,expressedorimplied,foranyconsequence resulting
from inappropriate, negligent or incorrect installation, application, use or adjustment of the product or
circuitdesign, orfrom themismatch of the unit toa motor. To preventan electrical shock hazard theQFE
must be connected to a safety earth. The unit is not designed for use in hazardous areas. Use in such
an area may invalidate the hazardous area certification.
Allrightsreserved. Nopartofthispublication maybe reproduced ortransmitted in anyform or byany means,electronic
or mechanical including photocopying, recording, or by any information storage or retrieval system without written
permission.
Copyright © Fairford Electronics Ltd 2011 Document: 858820/QFE-UL. Published: June 2011 M-8588-F
Soft Starters and Energy
Optimising Soft Starters
Fairford ElectronicsLimited,BristowHouse,Gillard Way,Ivybridge,Devon PL21 9GG, United Kingdom
TEL: + 44 (0) 1752 894554 FAX: + 44 (0) 1752 897145 EMAIL: [e-mail] WEB: www.fairford.co.uk
Registered No.: 1559267 England VAT No.: GB 367 2844 24
Cable cross section*Terminal type Conductor type AWG mm2Terminal tightening
torque
Power L1, L2, L3,
T1, T2, T3. M8 metric threaded studs
Ground PE M8 metric
threaded stud
Use 75°C copper
(CU) conductor only
and the wire shall be
fitted with close
eyelet lug.
1/0 50 106 Ib.in. (12 Nm.)
Cable cross section*Terminal type Conductor type AWG mm2Busbar
size (mm)* Terminal tightening torque
Power L1, L2, L3,
T1, T2, T3. M8 metric threaded studs
Ground PE M8 metric
threaded stud
Use 75°C copper
(CU) conductor only
and the wire shall be
fitted with close
eyelet lug or use
busbar.
2 x
250MCM 2 x 120 20 x 6 106 Ib.in. (12 Nm.)
Terminal type Conductor type Busbar size (mm)* Terminal tightening
torque
Power L1, L2, L3,
T1, T2, T3. Two off M10 nuts and bolts
Ground PE M10 metric
threaded stud
Use Busbar 45 x 20
60 x 10
80 x 10
212 Ib.in. (24 Nm.)
Size 1: QFE9 to
QFE146 terminals
Size 2: QFE174 to
QFE370 terminals
Size 3: QFE500 to
QFE900 terminals