POWER RELAY
1 POLE – 20A, 3.0mm contact gap

FTR-K2G Series
 FEATURES
 Contact gap min. 3.0mm
 Full disconnection
 1 Pole, 1 Form A
 Maximum inrush current 120A (TV-8) (UL) (VDE) High insulation
Reinforced insulation
Insulation distance between coil and contact:- Clearance min. 8.0mm, creepage min. 9.5mm- Dielectric strength: 5KV- Surge strength: 10KV Heat resistance, flammability
Class B (130°C) coil wire class, flammability UL94V-0 (plastic) Safety standards
UL, CSA, VDE approved Flux proof type. RT II RoHS compliant

 PARTNUMBER INFORMATION[Example]

FTR-K2GAK012

T(a)

(b)

(c)

(d)

(e)

(a)

Relay type

FTR-K2G: FTR-K2G Series(b)Contact configuration

A: 1 form A(c)Coil power

K: Standard type (1,000mW)(d)

Coil rated voltage012: 5....110VDC
See coil data chart(e)Contact material / TV type

T: Silver alloy / TV-8

Actual marking does not carry the type name : "FTR"
E.g.: Ordering code: FTR-K2GAK012T Actual marking: K2AK012T

1FTR-K2G Series
 SPECIFICATIONS
ItemContactdata

FTR-K2GAK( )TConfiguration

1 form A (SPST-NO)

Construction

SingleMaterial

Silver alloy

Resistance (initial)

Max. 100mΩ at 1A, 6VDC

Contact rating (resistive)

20A / 250VAC

Max. carrying current *1

25A

Max. inrush current

120A / 250VAC

Max. switching voltage

400VAC

Max. switching power

5,000VA

Min. switching load *2

100mA, 5VDC (reference value)

Rated power

Approximately 1,000mW

Operate power

Approximately 420mW

Operating temperature range-40℃ to +70℃ (no frost)

Timingdata

Operate (at nominal voltage)Max. 30ms (without bounce)

ReleaseMax. 15ms (without bounce)

LifeMechanicalMin. 1 x 106 operations

Coil data

ElectricalInsulation

Min. 100 x 103 operations

Lamp load (TV-8)

Min. 25 x 103 operations

Resistance (initial)
Dielectric strength

Surge strength

Min. 1,000MΩ at 500VDC
Open contacts

2,000VAC (50/60Hz) 1min

Coil to contacts

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

Coil to contacts

10,000V / 1.2 x 50μs standard wave

Clearance

8 mm

Creepage

9.5 mm

EN61710-1,
VDE0435

OthersResistive

Voltage

250V

Pollution degree

3Material group

III aCategory

B / 250V

Vibration resistance Misoperation > 1μs

Shock

10 to 55 to 10Hz single amplitude 0.75mm

Endurance

10 to 55 to 10Hz single amplitude 0.75mm

Misoperation > 1μs

100m/s2 (11 ± 1ms)

Endurance

1,000m/s2 (6 ± 1ms)

WeightApproximately 34g

Sealing

Flux proof (RT II)*1 : Need to consider the heat when mounted on PCB at carry currents > 10A. Please confirm actual condition.
* 2 : Minimum switching loads mentioned above are reference values. Please perform the confirmation test with actual load
before production since reference values may vary according to switching frequencies, environmental conditions andexpected reliability levels.

2

FTR-K2G Series
 COIL DATA
CoilCodeRated Coil Voltage(VDC)

Coil Resistance±10% (Ω）

Must Operate Voltage*(VDC)

Must Release Voltage*(VDC)

Rated Power(mW)

005

525

3.25

0.25006636

3.9

0.3009981

5.85

0.45012

12145

7.8

0.6018

18

325

11.7

0.9022

22485

14.3

1.1024

24

580

15.6

1.2048

48

2,200

31.2

2.4

1,050

060

60

3,600

393

1,000

110

110

13,00071.5

5.59301,000

Note: All values in the tables 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

UL

UL 508
CSA22.2 No.14
UL/CSA 60950-1
E63614

Flammability: UL 94-V0 (plastics)

IEC/EN61810-1
EN60065 clause 14.6.1
EN60335-1 clause 15.3; 16.3; 29.1; 29.2; 29.3
EN60730-1 clause 12.2; 13.2; 20.1; 20.2; 20.3

20A, 250VAC (cosφ=1), 70℃
8A/120A, 250VAC, 70℃

VDE

20A, 277VAC (resistive)
TV-8, 120 VAC

3

FTR-K2G 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-K2G Series
 CHARACTERISTIC DATA(Characteristic data is not guaranteed value but measured values of samples from production line.)5FTR-K2G 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 350-360˚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.

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: +1-408-745-4900
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 airtraffic control, in mass transit system control, in missile launch system, in weapon systems, in medical equipment for life support or any
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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. August 14, 2024.