POWER RELAY
1 POLE - 16A, 80A INRUSH TYPE

FTR-K1 Series

RoHS Compliant■ FEATURES• Peak 80A inrush current (1 form A type)• Low profile (height: 15.7mm)• High insulation• Insulation distance (between coil and contacts): 10mm minimum,
dielectric strength: 5kV, surge strength: 10kV
• Class F coil wire
• Low coil power (400mW)• Glow wire compliant type available which satisfies GWT required forrelay in IEC/EN 60335-1• Cadmium free contacts• Safety standards: UL, CSA, VDE, CQC approved
UL, CSA TV-5 rating approved (make contact)• Flux proof, RTII
• RoHS compliant■ APPLICATIONSHeater control, home appliances, lighting equipment etc.

■ PART NUMBERS[Example]

FTR-K1

AK012

T - BG - GW

(a)

(b)

(c)

(d)

(e)

(a)

Relay type(b)

Contact configuration(c)

Coil type(d)

Coil rated voltage(e)Contact material / TV type(f)

Special type(g)

Option(f)(g)

FTR-K1 seriesA: 1a (1 Form A, SPST-NO)

C: 1c (1 Form C, SPDT)

K: Standard type (400mW)

012: 5....110VDC
Please refer to coil rating table

T: AgSnO2 (1a, TV-5 contact)

W: AgSnO2 (1c, TV-5 contact) (make contact only)

Nil: Standard type (without gold plate)

BG: Gold plated contact

GW

Comply with GWEPT (IEC/EN 60695-2-11)

Actual marking does not carry the type name: “FTR” and option: “BG”
E.g.: Ordering code: FTR-K1CK012W Actual marking: K1CK012W

1FTR-K1 Series■ SPECIFICATIONSSpecifications

Item

FTR-K1AK( )TFTR-K1CK( )W

1a (1 Form A)

1c (1 Form C)

Contact

Configuration

Data

Construction

SingleMaterialAgSnO2ResistanceMax. 100mΩ

Contact rating

16A, 250VAC/24VDC

Max. carrying current

20A

Max. inrush current

80A, 250VAC

Max. switching voltage

440VAC/300VDC

Max. switching power

4,000VA/384W*1

100mA, 5VDC

Min. switching load
CoilTime
Life

Rated power (20°C)

400 to 430mW

Operate power (20°C)

196 to 211mW

Operating temperature range-40ºC to +85ºC

Remarks/Conditions

Initial at 1A, 6VDC
Resistive

No frost

OperateMax. 15ms

Without bounce

ReleaseMax. 5ms

Without bounce, no diode6Min. 20 x 10 operations

MechanicalAC contact rating

Min. 100 x 103 ops.

Min. 50 x 103 ops.

3

Min. 30 x 103 ops.

DC contact rating

Min. 100 x 10 ops.

Peak inrush

Insulation Insulation resistanceMin. 10 x 10³ ops. (only make contact)
Min. 25 x 103 ops.
Min. 25 x 103 ops.
(only make contact)
Min. 1000MΩ

DielectricOpen contacs

1000VAC (50/60Hz), 1 minute

Coil to contacts

5,000VAC (50/60Hz), 1 minuteElectricalLamp (UL TV-5)

At 85ºC, VDE#0435 (80A 250VAC)

At 500VDC

withstanding
strengthSurge

Coil to contacts
strength
Clearance / creepage

10,000V / 1.2 x 50μs standard wave
10mm / 10mm

Voltage

Others

250V

EN61810-1, Pollution degree

3VDE0435

IIIa

Material group
CategoryC / 250 (reference voltage) (VDE0110b)

Vibration

Misoperation≥1μs

10 to 55 to 10Hz single amplitude 0.35mm

Coil ON/OFF, 3 axis, total 6 cycles

resistanceEndurance

10 to 55 to 10Hz single amplitude 0.75mm

Coil OFF, 3 axis, total 6 hours

Shock
resistance

Misoperation≥1μsMin. 100m/s2 (11±1ms)

Endurance

Min. 1,000m/s2 (6±1ms)

Dimensions / Weight

Coil ON/OFF, 3 axis, total 36
operations
Coil OFF, 3 axis, total 18operations

12.7 x 29.0 x 15.7 mm / approx. 13gSealing

Flux proof, RTII

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

2

FTR-K1 Series■ COIL DATA
Must Operate Voltage*1 Must Release Voltage*1

Rated Coil Voltage

Coil Resistance(VDC)±10% (Ω)

(VDC)

(VDC)

005

562

3.5

0.5006690

4.2

0.60099202

6.3

0.901212360

8.4

1.2018

18810

12.6

1.8022

22

1,210

15.4

2.2024

24

1,440

16.8

2.4

028

28

1,960

19.6

2.8

048

48

5,360

33.6

4.8

060

60

8,570

42.0

6.0

110

110

28,80077.0

11.0

Coil CodeRated Power (mW)

400

430
420

Note: All values in the table are valid for 20°C and zero contact current unless otherwise specified.
*: Specified operated values are valid for pulse voltage.
Note: Please use at rated coil voltage. Please refer to characteristic data and set up adequate voltage in case of use at over voltage.

■ PART NUMBER LIST
Part Number

Contact
Configuration

Rated Power

Contact Material

UL TV Rating-FTR-K1AK( )T
AgSnO2Standard

FTR-K1AK( )T-GW
1a (1 Form A)
FTR-K1AK( )T-BG

Comply with GWEPT
TV-5(Approx. 400 to-430mW)

AgSnO2+Au plate

FTR-K1AK( )T-BG-GW

Comply with GWEPT-FTR-K1CK( )W
AgSnO2Standard

FTR-K1CK( )W-GW
1c (1 Form C)
FTR-K1CK( )W-BG

Others(Approx. 400 to430mW)

TV-5

Comply with GWEPT(N.O.)-AgSnO2+Au plate

FTR-K1CK( )W-BG-GW

Comply with GWEPT3FTR-K1 Series■ SAFETY STANDARDSTypeUL

Contact Rating

Compliance

1a1c

Flammability: UL 94-V-0 (plastics)
UL508

FTR-K1AK ( ) T(-GW)

FTR-K1CK ( ) W(-GW)

File No. E63614

16A, 24VDC (resistive)

16A, 277VAC/24VDC (resistive)

16A, 277VAC (resistive)

20A, 277VAC (resistive)

20A, 277VAC (resistive)

1 hp 277VAC, 1/2hp 125VAC

1 hp 277VAC, 1/2hp 125VAC

1/8 hp, 125VAC

TV-5, 120VAC 25,000 cycles

TV-5, 250VAC, 25,000 cycles

Pilot duty: A300

(make contact)
Pilot duty: B300

CSA

C22.2 No. 14

FTR-K1CK ( ) W(-GW)

File No. LR40304

16A, 277VAC/24VDC (resistive)
20A, 277VAC (resistive)
1hp 277VAC, 1/2hp 125VAC
1/8hp 125VAC
TV-5, 120VAC (make contact)
Pilot duty: B300

VDE

IEC/EN61810-1

FTR-K1AK ( ) T(-GW)

FTR-K1CK ( ) W(-GW)

EN60065 clause 14.6.1 (1a only)

16A, 250VAC (cosφ=1), 85°C

16A, 250VAC (cosφ=1), 85°C

EN60335-1 clause 15.3; 16.3; 29.1; 29.2; 29.3 3.5A, 250VAC (cosφ=0.4), 85°C

3.5A, 250VAC (cosφ=0.4), 85°C

EN60730-1 clause 12.2; 13.2; 20.1; 20.2; 20.3 16A, 24VDC (0ms), 85°C

16A, 24VDC (0ms), 85°C

5A/80A, 250VAC 10,000 times, 85°C
CQC

GB/T21711.1

FTR-K1AK ( ) T

FTR-K1CK ( ) W

GB15092.1

12A, 240VAC

16A, 250VAC

File No. 12002083788

72LRA/12FLA 240VAC

4

FTR-K1 Series■ DIMENSIONSFTR-K1AK( )T
Dimensions

Schematics (BOTTOM VIEW)
513.0 max.
12.7 typ.

16.0 max.
15.7 typ.

29.3 max.
29.0 typ.

64
Orientation mark6- pre-soldering

78COM NO

3

21Connect terminal #1 and #8 on the PC board
0.3

0.5

20

3.3

ĳ
(2.6)

5

0.9
2.6

0.9
7.5

PC board mounting hole layout (BOTTOM VIEW)
205ĳ

7.5

ĳ

(2.6)

(2.6)

FTR-K1CK( )W
Dimensions

Schematics (BOTTOM VIEW)
513.0 max.
12.7 typ.

16.0 max.
15.7 typ.

4
Orientation mark

0.5

0.5

0.3
5(2.6)

53.38- pre-solderingĳ

60.9
2.6

0.9
7.5

78NC COM NO
321Connect terminal #1 and #8 on the PC board

PC board mounting hole layout (BOTTOM VIEW)

20(2.6)20
ĳ

55

7.5

ĳ

(2.6)

29.3 max.
29.0 typ.

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

5

Unit: mm( ): Reference valueFTR-K1 Series■ CHARACTERISTIC DATA(Characteristic data is not guaranteed value but measured values of samples from production line.)

Coil temperature rise

100

Operating range

16A

706010A

5040300A

20
1000.20.4

0.60.8

1FTR-K120A
16A

1.5

AC resistive

20Switching current (A)Nominal voltage multiplying factor

80

Temperature rise (℃)

502.5900Maximum switching power

1FTR-K1

1052
10.5

DC resistive

0.2
0.5

020

4060800.1
10100

Ambient temperature (℃)

1.22050

100 200500 1000

Contact voltage (V)Coil power (W)Life curve
250VAC resistive
24VDC resistive

500300200

FTR-K1AK

9$&FRVĳ 1005030
20

9'&/5 PV

100 2

9$&FRVĳ 9'&/5 PV

46Life curve

1000

Service life (x103 operations)

Service life (x103 operations)

1000

500

9$&FRVĳ 9'&/5 PV

1005030209'&/5 PV0 2

4Contact current (A)Distribution of contact resistance

50403080

Break

70
6050403060
504030

2020

10

10

100 1

23456 7Time (ms)

89 1000010203040&RQWDFWUHVLVWDQFH Pȍ

650Release

70

200FTR-K1CK012W
Q Operate

90

Distribution (%)

60FTR-K1CK012W
Q Make80

Release70

Distribution of operate/release voltage
10090

Distribution (%)

Distribution (%)

80

8 10 12 14 16 18 20100

FTR-K1CK012W
Q Operate

90

6Contact current (A)Distribution of operate/release time100

FTR-K1CK9$&FRVĳ 
24VDC resistive

300
200

108 10 12 14 16 18 20

250VAC resistive

01020 30 40 50 60

70 80

Nominal voltage multiplying factor (%)

FTR-K1 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:

0D[LPXPÛ&ZLWKLQVHF
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: 0D[LPXPÛ&
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.

7

FTR-K1 Series
ContactJapan
FCL 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: +1-408-745-4900Email: fcai.components@fcl-components.com

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

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

Hong Kong
FCL COMPONENTS HONG KONG CO.,LIMITED
Unit 2313, Seapower Tower, ConcordiaPlaza, No.1 Science Museum Road,TST, Kowloon, Hong Kong
Tel: +852-2881-8495
Email: fcal@fcl-components.com

Web: www.fcl-components.com/en/© 2024 FCL Components Limited. All rights reserved. All trademarks or registered trademarks are the property of their respective owners.
FCL Components Products are intended for general use, including without limitation, in personal, household and office environments, inbuildings and for ordinary use in the industry. FCL Components Products are not intended to be used in applications where extremely highsafety is required (”High Safety Required Applications”), such as, but not limited to, applications in nuclear facilities, in aircraft automatic flightcontrol, 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 Components Products without securing the sufficient safety and reliability required for the High Safety RequiredApplications.
In addition, FCL Components shall not be liable against the customer and/or any third party for any claims or damages arising in connection
with the use of FCL Components Products in the High Safety Required Applications.
FCL Components warrants that its Products, if properly used and services, will conform to their specification and will be free from defects inmaterial and workmanship for twelve months from delivery.
The implied warranties of merchantability and fitness for a particular purpose and all other warranties, representations and conditions, express
or implied by statute, trade usage or otherwise, expect as set forth in this warranty, are excluded and shall not apply to the Products delivered.
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 Components has assembled this datasheet with care and will endeavor to keep the contents, data and information correct, accurate,comprehensive, complete and up to date.
FCL Components Limited and aﬃliated companies do however not accept any responsibility or liability on their behalf, nor on behalf of its
employees, for any loss or damage, direct, indirect or consequential, with respect to this datasheet, its contents, data, and information andrelated graphics and the correctness, reliability, accuracy, comprehensiveness, usefulness, availability and completeness thereof. Nor do
FCL Components Limited and aﬃliated companies accept on their behalf, nor on behalf of its employees, any responsibility or liability withrespect 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. (O24)8