HIGH VOLTAGE DC SWITCHING RELAY
1 POLE – 20 / 30A

FTR-E1 Series

RoHS Compliant■ FEATURES 20/30A 450VDC and 20A 800VDC high voltage DC load switching.
 Non polarized contacts. Switchable for charge/discharge circuit.
 Low coil power consumption (0.9W at coil rated voltage) High insulation.
• Between coil and contact: 5,000VAC, 1 minute.
• Between open contact: 2,500VDC, 1 minute.
 cULus recognized types are available.
 Plastic material: UL flammability 94V-0.
 Plastic sealed.

■ APPLICATIONS• On board electrical vehicles charger system and plug-in hybrid vehicles• String disconnecting of photovoltaics systems• Charge and discharge of power storage system• High voltage DC load control system• Electric vehicles pre-charge• Vehicle to Home

■ PART NUMBERS[Example] FTR-E1
(a)

A(b)

A
(c)

012
(d)

Y (e)

MF
(f)

(a)

Relay type

FTR-E1 series(b)Contact configurationA: 1a (1 Form X)(c)Power consumption

A: Standard (900mW)(d)

Nominal coil voltage

012024: 12VDC: 24VDC(e)Contact material

Y: Silver alloy(f)Special typeMF
GRHA: Standard (20A): cULus recognized (20A): cULus recognized (30A)

Note: The designation name is stamped on the top of the relay case as follows:
Example: Ordering part number: FTR-E1AA012Y-MF Stamped on part number: E1AA012Y-MF
1

FTR-E1 Series■ SPECIFICATIONS
ItemContact
Data

Configuration
MaterialConstruction
Contact rating
Voltage drop
Continuous carrying current

CoilTimeLife

Max. carrying current
Min. switching loadRated power consumption
Operate powerconsumption
Operating temperature
range
OperateRelease
MechanicalElectricalSpecifications
20A type (-MF, -GR)
30A type (-HA)
1a (1 Form X)
Silver alloy
Single contact
20A, 450VDC
30A, 450VDC
20A, 800VDC
20A, 800VDC
Max. 0.5V
25A (85ºC, cable size 5.5mm2)
30A (70ºC, cable size 8mm2)
40A (40ºC, cable size 8mm2)
40A / 1 hour (85ºC, cable size 8mm2)
1A 6VDC
900mW
324mW-40ºC to +85ºC
Max. 30ms (without bounce)Max. 10ms (without diode, without bounce)
1 x 10⁶ operations
75 x 10³ operations
10 x 10³ operations-5 x 10³ operations
10 operations
50 operations
100 x 10³ operations
100 x 10³ operations

Insulation Insulation resistanceDielectricOpen contact
withstanding Coil contact
voltageVibration
Misoperation
OthersresistanceEndurance
Shockresistance

Misoperation

Endurance
Dimensions / weight

1000MΩ
2,500VAC(50/60Hz), 1 minuteRemarks/Conditions

Resistive
At 20A
Please refer to characteristic data

Reference*1
At 20ºC
At 20ºC
No frost
At 20ºC, nominal voltage
18,000 operations / hour
10A, 450VDC resistive, withsuppression device *²
20A, 450VDC resistive, withsuppression device *²
30A, 450VDC resistive, withsuppression device *2
20A, 800VDC resistive, withsuppression device*2
10A, 1000VDC resistive, withsuppression devices *2
20A, 450VDC inrush only (withoutbreak)
20A, 800VDC inrush only (withoutbreak)At 1000VDC

5,000VAC(50/60Hz), 1 minute
5 to 200Hz, 45m/s², constant acceleration
5 to 200Hz, 45m/s², constant acceleration
300m/s² (11±1ms, contact ON)
200m/s² (11±1ms, contact OFF)
1,000m/s²(6±1ms)
28.3×43.6×36.8 mm / approx. 75g

Sense time 1ms, contact ON/OFF
Contact ON/OFF, up/down 4hours,
left/right/front/back each 2 hours
Sense time 1ms
Contact ON/OFF total 36 times

Note: Electrical characteristics mentioned above are the values at JIS standard condition (temperature 15 to 35degC, relative humidity 25 to 75%,
atmospheric pressure 86k to 106kPa) unless otherwise specified.
Note: Care shall be taken on the heat generated on PC board when maximum carrying current exceeds 10A.
Please perform the confirmation test with actual conditions.
*¹: Minimum switching loads mentioned above are reference values. Please perform the confirmation test with actual load before production sincereference values may vary according to switching frequencies, environmental conditions and expected reliability levels.
*² : Electrical life at resistive load mentioned above are the values when a varistor or zener diode or zener diode+diode is used as coil suppression
device. Using protection device other than these, the contact life expectancy may decrease drastically.
When using a varistor as a suppression device, varistor voltage shall be approximately twice the voltage applied to the coil and connect it in parallelwith the coil. When using a zener diode or zener diode+diode as a suppression device, please refer to the CIRCUIT DIAGRAM WHEN USINGZENER DIODE.
2FTR-E1 Series■ COIL DATA
Coil CodeNominal Coil Voltage(VDC)

Coil Resistance±10% (Ω)

Must Operate Voltage*(VDC)

Must Release Voltage*
(VDC)

012

12160

7.2 (at 20℃)
9.0 (at 85℃)

1.0 (at 20℃)
1.3 (at 85℃)

024

24640

14.4 (at 20℃)
18.0 (at 85℃)

2.0 (at 20℃)
2.6 (at 85℃)

Note: All values in the table are valid at 20℃ and zero contact current unless otherwise specified.
Note: Coil polarity must be applied as specified in schematics.
*: Specified operate values are valid for pulse wave voltage.

■ SAFETY STANDARDS
TypecULusComplianceContact rating[FTR-E1AA***Y-GR]
10A, 450VDC (resistive) 85ºC
20A, 450VDC (resistive) 85ºC
[FTR-E1AA***Y-HA]
10A, 450VDC (resistive) 85ºC
20A, 450VDC (resistive) 85ºC
30A, 450VDC (resistive) 85ºC

UL508
C22.2 No.14-13(File No. E63615)

3

FTR-E1 Series■ DIMENSIONS• Dimensions
43.9 max.
43.6 typ.

437.1 max.
36.8 typ.

28.6 max.
28.3 typ.

2-0.81.64-1.6

0.8(7.4)

13.9

5.4

8.8

5.4

28.8
Pre-solder

Note: Dimensions of the terminals do not include thickness of pre-solder.

• PC Board Mounting Hole Layout(BOTTOM VIEW)• Schematics(BOTTOM VIEW)(7.4)
28.8±0.05

19.6±0.05

14.2±0.05

4

5.4±0.05

2 (-)(4.35)

32.85±0.05

1 (+)

16.75±0.05

6 -Φ2.15±0.05( ): Reference
Unit: mm

■ PART NUMBER LIST
Part number

Nominal coilvoltage

Contact rating

Safety standard

20A 450VDC、20A 800VDC-20A 450VDC、20A 800VDC

cULus（450VDC only)

FTR-E1AA012Y-HA

30A 450VDC、20A 800VDCcULus（450VDC only)

FTR-E1AA024Y-MF

20A 450VDC、20A 800VDC-20A 450VDC、20A 800VDCcULus（450VDC only)

30A 450VDC、20A 800VDC

cULus（450VDC only)

FTR-E1AA012Y-MF
FTR-E1AA012Y-GR

FTR-E1AA024Y-GR
FTR-E1AA024Y-HA

12VDC

24VDC

4FTR-E1 Series■ CHARACTERISTIC DATA(Characteristic data is not guaranteed value but measured values of samples from production line.)

Distribution of operate/release voltage

80Release
Operate6040206040

123456709 10800.02

Operate/Relase voltage (VDC)

Distribution of relase time
100

7060

400.060.08

201234567890

Operate time (ms)Coil temperature rise

Operating range
2.4
2.2

50
25A

40
30
200100A

0Release time (ms)0.2

0.4 0.6 0.8

11.2 1.4

1.6100000

Life (cycle)

Contact carrying current (A)

10000

3525

Applied voltage: Rated coil voltage

201000100

15101050-60 -40 -20

10204060

Ambient temperature (℃)

80100

110Contact current (A)5iretemperatu

re

1.6
1.4

tem

pe

range

rat

(25ureA)range

100(0A)

Max. allowable voltage

1.2
1.0
0.8
0.6
0.4
0.2
0.0-40

MerateMust op-2005A)

ot coil/2ltage (Hrate vo
ust opevoltage

20il)(Cool co40

Max. allowabletemperature

60

Ambient temperature (℃)

4530

re

1.8

Ambient temperature - contact carrying current Switching life curve (600VDC, resistive load)

40

WWi

2.0

Coil power (W)50

10 11 12 13 14 15 16 17 18 19 20

Contact voltage drop (V)100400.1Rated power
consumption

60
Temperature rise (℃)

Distribution (%)

80

0.0480FTR-E1AA012Y-MF
n=14020℃/Rated coil voltage
Without diode6020Nominal voltage multiplying factor

0FTR-E1AA012Y-MF
n=14020℃/ Rated coil voltage

802000100

FTR-E1AA012Y-MF
n=14020℃/20A80
Distribution (%)

Distribution (%)

100

FTR-E1AA012Y-MF
n=14020℃

Distribution of operate timeDistribution (%)

100

Distribution of voltage drop

80

100

FTR-E1 Series■ CHARACTERISTIC DATA(Characteristic data is not guaranteed value but measured values of samples from production line.)

Vibration resistance characteristics

Acceleration (m/s2)

100

Test material: coil energized and de-energized
Direction of vibration: see diagram below
Detection level: chatter >1 ms

Specification criteria

X

10No chattering wasdetected in thegraph area
1

1

10

100

Y

Z
1000 2000

Frequency (Hz)Shock resistance characteristics

Acceleration (m/s2)

1000

Test material: coil energized and de-energized
Shock duration: 11ms (490m/s2 or less)
6ms (more than 490m/s2)
Test direction: see diagram under the graphDetection level: chatter > 1ms

800
600
400: Coil de-energized: Coil energized

2000Test
direction

6

FTR-E1 Series■ CIRCUIT DIAGRAM WHEN USING ZENER DIODE (Refer to *2 on page 2)■Nominal coil voltage: 12V
1. Using zener diode1. Using zener diode + diode■Nominal coil voltage: 24V
1. Using zener diode + diode2. Using zener diode7

FTR-E1 Series
CAUTIONS• All values mentioned in this datasheet are provided under ideal conditions. Please perform the confirmation 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 mayincrease.
• Do not use silicon or silicon-containing product or materials near relays. It may cause contact failure.
• Please connect relay coils according to specified polarity.

Cautions for high voltage DC switching relays• There is a possibility that the relay is not able to switch off the load at high voltage DC load. Fail safe circuit must
be provided to prevent injury, fire or other harms resulting from failure occurred on relays.
• Relays are periodic maintenance parts. Do not exceed the specified life time and/or switching conditions.

GENERAL INFORMATION
1. RoHS Compliance• All relays produced by FCL Components are compliant with RoHS directive 2011/65/EU, including commissiondelegated 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 beenverified to be compatible with PbSn assembly process.
• Recommended solder for assembly: Sn-3.0Ag-0.5Cu.

Flow Solder Condition:

Solder by Solder Iron:

Pre-heating: Maximum 120℃
within 90 sec.
Soldering: Dip within 5 sec. at 255℃±5℃ solder bath

Soldering Iron: 30-60W
Temperature: Maximum 340-360℃
Duration:Maximum 3 sec.

Relay must be cooled by air immediately after soldering

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 lengthwhisker was found by our in-house test.

8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

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

Hong Kong
FCL COMPONENTS HONG KONG CO., LIMITED
Unit 2313, Seapower Tower, Concordia
Plaza, 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 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 anyapplication 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.
FCL warrants that its Products, if properly used and services, will conform to their specification and will be free from defects in material
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 theProducts 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 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
and related 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 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. June 18, 2024.