General purpose miniature power relay

RoHS compliantÿÿ
seriesPower relay series pursuing reliability and safety

DFU¥ Currently it is used for such purposesï Industrial equipment, Solar water heater, Factory automation equipment,
00Automation equipment
ï Control panel, Power supply equipment, Molding equipment, Machine tools,
00Welding machines, Machinery for agricultureï Commercial equipment, Vending machines, Telecommunications equipment,
00Disaster prevention equipment, Copiers, Measuring instruments,
00Medical devices
ï Construction machinery, Snow vehicle, Around a small boat and other engines
ï Various household appliances

DEC is a professional manufacturer of relays

Daiichi Electric Co., Ltd.
https://www.j-dec.co.jp

General purpose miniature power relay that can be used for a wide range of applications from control to power.

ÿÿ series¥ Features
ï General purpose high capacity power relay boasting high reliability and achievements.

¥ Model numbering systemDÿ
Rated coil voltage: Numeric part indication
DC (V)ÿ 5, 12, 24, 48, 100Dÿ DC
Coil type
Number of contact poles000 1ÿ 1 pole
Shape indication 0
Fÿ Coil side is #187 tab terminal, contact side is #250 tab terminal, flange-mounting typeContact configurationNilÿ Transfer contact(M)ÿ Make contact¥ Safety standards
Contact rating
DFU 1aDFU 1c0 UL

20A 275V AC 2hp 265V AC

15A 280V AC 2hp 265V AC

0 CSA

20A 250V AC 2hp 240V AC

20A 250V AC(NO)/15A 250V AC(NC)

0 VDE

20A cosÇ=1 250V AC

15A cosÇ=0.4 250V AC

0 Electrical Appliances
0 and Materials Safety ActConformable¥ Coil ratings
Item
AC/DCVoltage

DCï Notesÿ5122448100

Rated current
ÿmAÿCoil resistanceÿ«ÿ

18075
3720
1027.8160
650
2400
10 000Operate voltageÿÿÿRelease voltageMaximum voltageÿÿÿÿÿÿRatio to rated voltage

Powerconsumption(W)
0.9

80% max.

10% min.

110%
0.96
1.0

1. Rated current and coil resistance are values at coil temperature of 20#, tolerance is 10%.
2. Operate voltage and release voltage are values at coil temperature of 20#.
3. Maximum voltage is the maximum value of the allowable voltage fluctuation range of the relay coil operating power supply
with the ambient temperature at 20#.

DEC is a professional manufacturer of relays

Daiichi Electric Co., Ltd.
https://www.j-dec.co.jp

General purpose miniature power relay that can be used for a wide range of applications from control to power.

ÿÿ series¥ RatingsûPerformance
Specifications
Contact
specification

Ratings

Electricalcapability

Mechanicalcapability

LifeConditions foroperation
Mass

Item

Performance

Contact configuration
Contact resistanceContact material
Rated load (resistive load)
Max. switching capacity (resistive load)
Max. switching voltage
Max. switching current
Insulation resistance
Between coil and contact
Dielectricstrength
Between open contact

1a

Impulse withstand voltage (between coil and contact)

Operate time (at rated voltage on, at 20#ÿRelease time (at rated voltage off, at 20#ÿMalfunction
Vibration
resistance Destruction
Malfunction
Shockresistance Destruction
Mechanical endurance (at 180 times/min)Electrical endurance(at 20 times/min)Ambient temperature
Ambient humidity

1c50m« max. (at DC6V 1A)
Ag alloy
AC250V 20A (NO) / AC250V 15A (NC)
5000VA
AC250V
20A (NO)
20A (NO) / 15A (NC)
100M« min. (at DC500V)
AC2000V 1 min
AC1000V 1 min
10 000V min. (1.2¶50¿s)
20ms max. (excluding contact bounce time)
20ms max. (excluding contact bounce time)
10 to 55 to 10Hz ÿdouble amplitude 1.5mmÿ 10 to 55 to 10Hz ÿdouble amplitude 1.0mmÿ
10 to 55 to 10Hz ÿdouble amplitude 1.5mmÿ 10 to 55 to 10Hz ÿdouble amplitude 1.0mmÿ

100m/s 2
1000m/s 2
1 000 000 times min.
100 000 times min. (at rated load)-25# to +60# (no freezing and condensing at low temperature)
5% to 85%RH
approx.032g

ï Notes: The above is the initial value.

DEC is a professional manufacturer of relays

Daiichi Electric Co., Ltd.
https://www.j-dec.co.jp

General purpose miniature power relay that can be used for a wide range of applications from control to power.

ÿÿ series¥ Dimensions¥ Schematics

Unit: mmTOLERANCES
ÿ5mm: 0.2g5mm: 0.3

DFU (1a)¥Mounting holes

Unit: mm

¥ Dimensions¥ Schematics

Unit: mmTOLERANCES
ÿ5mm: 0.2
g5mm: 0.3

DFU (1c)¥ Mounting holes

Unit: mm

DEC is a professional manufacturer of relays

Daiichi Electric Co., Ltd.
https://www.j-dec.co.jp

General purpose miniature power relay that can be used for a wide range of applications from control to power.

ÿÿ series
Reference data
¥ Maximum switching capacity
DFU

100Contact current (A)201510NO (resistive load)
NC (resistive load)

10.1
101002501000

AC contact voltage (V)¥ Durability curve
DFU

1000

AC220V resistive load (NO)AC220V resistive load (NC)4

Number of operations¶10 times

1001010246810121416182022

AC contact current (A)ï Please understand that specifications may be changed without notice due to product improvement etc. ï Dimensions and specifications indicate only major points. Please contact our sales representatives for details.

DEC is a professional manufacturer of relays

AgencyDaiichi Electric Co., Ltd.
Head office 22, Noge 3chome, Setagayaku, Tokyo 158-0092, Japan
Phone +81-3-3703-5421
Facsimile +81-3-3703-5426
U R L
https://www.j-dec.co.jp E-Mail: sales@j-dec.co.jp

202205