POWER RELAY
1 POLE – 20A Heavy Load

FTR-K3 Series
 FEATURES SPST 20A and #250 tab terminal type is also available
 Low coil power (780mW)
 Glow wire compliant type available which satisfies GWT required
for relay in IEC/EN 60335-1
 Cadmium free contacts
 SAFETY STANDARDSUL, CSA, VDE,CQC approved Flux proof RoHS compliant

 PARTNUMBER INFORMATION[Example]

FTR-K3

AB012

W - HC - GW

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(a)

Relay type

FTR-K3: FTR-K3 Series(b)Contact configuration

AJ: 1 form A (SPST-NO) (PCB terminal): 1 form A (SPST-NO) (Tab terminal)(c)

Coil type

B: Standard type (780mW)(d)

Coil rated voltage012: 5....48VDC
See coil data chart(e)Contact materialW: Silver alloy(f)Special type

NilLS
HC

: Standard type (20A): High isolation type (20A): High current type (25A)(g)

OptionGW: Comply with GWEPT (IEC/EN 60695-2-11)
Not applicable for (b) J, (f) LS,Actual marking does not carry the type name : "FTR"
E.g.: Ordering code: FTR-K3AB012W Actual marking: K3AB012W

1FTR-K3 Series
 SPECIFICATIONS
ItemContactdata

FTR-K3FTR-K3-LS

Configuration

1 form AConstruction

SingleMaterial

Silver alloy

Resistance (initial)

Max. 100mΩ at 1A, 6VDC

Contact rating (resistive)

20A, 250AC

Max. carrying current

25A

Max. inrush current

200A (peak) / steady 20A 100VAC (inverter load)

Max. switching current *1

25A

Max. switching voltage

250VAC

Max. switching power

6,250VA

Min. switching load *2

100 mA, 5VDC

Rated power (20℃)

780 mW

Operate power (20℃)

380 mW

Operating temperature range-40℃to +60℃ (no frost)

Timingdata

Operate (at nominal voltage)

Max. 20ms (without bounce)

Release (at nominal voltage)

Max. 10ms (no diode, without bounce)

LifeMechanicalMin. 2 x 106 operations

Coil data

ElectricalInsulation

Resistive load

Min. 100 x 103 operations

Motor load

Min. 200 x 103
operations(250VAC,inrush 80A cosφ=0.7,
cut off 20A cosφ=0.9)

Inverter load

Min. 30 x 103 operations
100VAC, inrush 200A / cut off 20A

Min. 200 x 103
operations(250VAC,inrush 80A cosφ=0.7
cut off 20Acosφ=0.9)

Resistance (initial)

Min. 1,000MΩ at 500VDC

Dielectricstrength

Open contacts

1,000VAC (50/60Hz) 1min

Contacts to coil

5,000VAC (50/60Hz) 1min

Coil to contacts

8,500V / 1.2 x 50μs standard wave

Surge
strength

Others

20A, 250VAC

Clearance / creepage

6.4mm / 9.5mm

Vibration
resistance

Misoperation > 1μs

10 to 55 to 10Hz single amplitude 0.75mm

Endurance

10 to 55 to 10Hz single amplitude 0.75mm

Shock

Misoperation > 1μs Min. 200m/s2 (11 ± 1ms)
Endurance

8.0mm / 9.5mm

FTR-K3-HC

25A, 250VAC

Min. 200 x 103
operations(250VAC
inrush 80A cosφ=0.7
cut off 25A cosφ=0.9)

6.4mm / 9.5mm

Min. 1,000m/s2 (6 ± 1ms)

WeightApproximately 25gSealing

Flux proof, RTII

* 1 Need to consider the heat from PCB when max. current is more than 10A* 2 Minimum switching loads mentioned above are reference values. Please perform the test with actual load before
production since reference values may vary according to switching frequencies, environmental conditions and expected
reliability levels..

2FTR-K3 Series COIL DATA
CoilCodeRated Coil Voltage(VDC)

Coil Resistance±10% (Ω）

Must Operate Voltage*(VDC)

Must Release Voltage*
(VDC)

005

532

3.5

0.5006646

4.20.60099105

6.3

0.901212185

8.4

1.2018

18415

12.6

1.8

024

24740

16.8

2.4

048

48

2,955

33.6

4.8

Rated Power(mW)

780

Note: All values in the table are valid for 20℃ and zero contact current.
* Specified operate values are valid for pulse wave voltage.
Please use at rated coil voltage. Please refer to characteristic data and set up adequate voltage in case of use at over voltage.

 SAFETY STANDARDS
TypeComplianceContact rating
FTR-K3FTR-K3-LS

FTR-K3-HC

UL

UL 508
No. E63614

20A, 277VAC (resistive at 60℃)
1hp, 125VAC (at 60℃)
2hp, 277VAC (100,000 ops. at 60℃)

25A, 277VAC(resistive at 60℃)
1hp, 125VAC (at 60℃)
2hp, 277VAC (100,000ops.at 60℃)

CSA

C22.2 No. 14
No. LR40304

20A, 277VAC (resistive)
1hp, 125VAC
2hp, 277VAC (100,000ops.)

25A, 277VAC (resistive)
1hp, 125VAC
2hp, 277VAC (100,000ops.)VDE

IEC61810-1
EN60950-1 clause 2.9.2;
2.10.3; 2.10.5; 5.2 (only -LS)

20A, 250VAC (cos φ=1) 60℃

25A, 250VAC (cos φ=1)
60℃

CQC

GB15092-1
GB8898
GB/T21711.1
No. 17002165723

20A, 250VAC

25A, 250VAC

TUV

IEC61810-1

ーーー

20A, 250VAC (cos φ=1)60℃ー3

FTR-K3 Series DIMENSIONS

Notes:• Dimensions of the terminals do not include thickness of pre-solder.
• Dimensions do not include tolerance.
• Tolerance of PC board mounting hole layout : ±0.1 unless otherwise specified.

Unit:mm( ): Reference

4FTR-K3 Series
 CHARACTERISTIC DATA(Characteristic data is not guaranteed value but measured values of samples from production line.)5FTR-K3 Series
 CHARACTERISTIC DATA(Characteristic data is not guaranteed value but measured values of samples from production line.)

6FTR-K3 Series
CAUTIONS
・All values mentioned in this datasheet are provided under ideal conditions. Please perform theconfirmation test before actual use.
・Reflow soldering is prohibited.
・Do not use relays in the atmosphere with sulfide gas, chloride gas or nitric oxide. Contact resistance
may increase.
・Do not use silicon or silicon-containing product or materials near relays. It may cause contact failure.

GENERAL INFORMATION
1. RoHS Compliance• All relays produced by FCL Components are compliant with RoHS directive 2011/65/EU, including
commission delegated directive 2015/863.

2. Recommended lead free solder condition• Lead free solder plating on relay terminals is Sn-3.0Ag-0.5Cu, unless otherwise specified.
This material has been verified to be compatible with PbSn assembly process.

• Recommended solder for assembly: Sn-3.0Ag-0.5Cu.
Flow Solder Condition:
Pre-Heating:Soldering:

Maximum 120˚C within 90 sec.
Dip within 5 sec. at 255°C±5°C solder bath

Relay must be cooled by air immediately after soldering

Solder by Soldering Iron:
Soldering Iron: 30-60W
Temperature: Maximum 340-360˚C
Duration:
Maximum 3 sec.

We highly recommend that you confirm your actual solder conditions
3. Moisture Sensitivity• Moisture Sensitivity Level standard is not applicable to electromechanical relays, unless otherwise
indicated.

4. Tin Whiskers• Dipped SnAgCu solder is known as presenting a low risk to tin whisker development. No considerable
length whisker was found by our in house test.

ContactJapanFCL COMPONENTS LIMITED
Shinagawa Seaside Park Tower
12-4, Higashi-shinagawa 4-chome,
Tokyo 140 0002, Japan
Tel: +81-3-3450-1682
Email: fcl-contact@cs.fcl-components.com

North and South America
FCL COMPONENTS AMERICA, INC.
2055 Gateway Place Suite 480,
San Jose, CA 95110 USA
Tel: +1-408-745-4900
Email: fcai.components@fcl-components.com

Asia Pacific
FCL COMPONENTS ASIA PTE LTD.
No. 20 Harbour Drive, #07-01B
Singapore 117612
Tel: +65-6375-8560
Email: fcal@fcl-components.com

China
FCL COMPONENTS (SHANGHAI) CO., LTD.
Unit 1105, Central Park - Jing An,
No.329 Heng Feng Road, Shanghai 200070,
China
Tel: +86-21-3253 0998
Email: fcsh@fcl-components.com

EuropeFCL COMPONENTS EUROPE B.V.
Diamantlaan 25
2132 WV Hoofddorp, Netherlands
Tel: +31-23-556-0910
Email: info.fceu@cs.fcl-components.com

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owners.
FCL Products are intended for general use, including without limitation, in personal, household and office environments, in buildings
and for ordinary use in the industry. FCL Products are not intended to be used in applications where extremely high safety is required(”High Safety Required Applications”), such as, but not limited to, applications in nuclear facilities, in aircraft automatic flight control, in air
traffic control, in mass transit system control, in missile launch system, in weapon systems, in medical equipment for life support or any
application involving a direct serious risk of physical injury or death.
Please do not use FCL Products without securing the sufficient safety and reliability required for the High Safety Required Applications.
In addition, FCL shall not be liable against the customer and/or any third party for any claims or damages arising in connection with theuse of FCL Products in the High Safety Required Applications.
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The contents, data and information in this datasheet are provided by FCL Components Limited as a service only to its user and only for
general information purposes. The use of the contents, data and information provided in this datasheet is at the users’ own risk.
FCL has assembled this datasheet with care and will endeavor to keep the contents, data and information correct, accurate, comprehensive, complete and up to date.
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Nor do FCL Components Limited and affiliated companies accept on their behalf, nor on behalf of its employees, any responsibility orliability with respect to these datasheets, its contents, data, information and related graphics and the correctness, reliability, accuracy,comprehensiveness, usefulness, availability and completeness thereof. Rev. February 1, 2024.