DK

ASCTB177E 201202-T

2. Specifications

Notes: *1. This value can change due to the switching frequency, environmental conditions, and desired reliability level, therefore it is recommended to check this with the

actual load.

*2. Wave is standard shock voltage of

±1.2×50µs according to JEC-212-1981

*3. The upper limit of the ambient temperature is the maximum temperature that can satisfy the coil temperature rise value. Refer to Usage, transport and storage

conditions in NOTES.

REFERENCE DATA

Characteristics

Item

Specifications

Contact

Arrangement

1 Form A

1 Form A 1 Form B

2 Form A

Contact resistance (Initial)

Max. 30 m

Ω (By voltage drop 6 V DC 1A)

Contact material

Au-flashed AgNi type

Rating

Nominal switching capacity (resistive load)

10 A 250 V AC, 10 A 30 V DC

8 A 250 V AC,8 A 30 V DC

8 A 250 V AC,8 A 30 V DC

Max. switching power (resistive load)

2,500VA, 300 W

2,000 VA, 240 W

2,000 VA, 240 W

Max. switching voltage

250 V AC, 125 V DC

250 V AC, 125 V DC

250 V AC, 125 V DC

Max. switching current

10 A

8 A

8 A

Nominal operating power

200 mW

10m A 5 V DC

Electrical

characteristics

Insulation resistance (Initial)

Min. 1,000M

Ω (at 500V DC) Measurement at same location as “Breakdown voltage” section.

Breakdown voltage

(Initial)

Between open contacts

1,000 Vrms for 1min. (Detection current: 10mA.)

Between contact and coil

4,000 Vrms for 1min. (Detection current: 10mA.)

Surge breakdown

between contacts and coil

10,000 V

Temperature rise (coil) (at 65

Max. 40

°C (By resistive method, nominal voltage applied to the coil; max. switching current)

Operate time [Set time] (at 20

Max. 10 ms (Approx. 5 ms) [10 ms (Approx. 5 ms)]

(Nominal coil voltage applied to the coil, excluding contact bounce time.)

Release time [Reset time] (at 20

Max. 8 ms (Approx. 3 ms) [10 ms (Approx. 3 ms)]

(Nominal coil voltage applied to the coil, excluding contact bounce time.) (without diode)

Mechanical

characteristics

Shock resistance

Functional

µs.)

Destructive

Vibration resistance

Functional

10 to 55 Hz at double amplitude of 1.5 mm (Detection time: 10

µs.)

Destructive

10 to 55 Hz at double amplitude of 3 mm

Expected life

Mechanical

Min. 5

Electrical

Conditions

Ambient temperature: –40

Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature)

Max. operating speed (at rated load)

20 times/min.

Unit weight

1-(1). Maximum operating power (1 Form A)

1-(2). Maximum operating power

(1 Form A 1 Form B, 2 Form A)

2-(1). Life curve (1 Form A)

AC resistive load

DC resistive

load

DC inductive load

(L/R = 7 ms)

AC inductive load

(cos

ϕ= 0.4)

Contact voltage, V

10

100

1,000

0.1

1

10

100

Contact voltage, V

AC resistive load

DC inductive load

(L/R = 7 ms)

DC resistive

load

AC inductive load

(cos

ϕ= 0.4)

0.1

1

5

10

10

100

1,000

012

345

67

89

10

10

100

1,000

1

Contact current, A

250 V AC resistive load

30 V DC resistive load

250 V AC inductive load (cos

ϕ= 0.4)

30 V DC inductive load (L/R = 7 ms)

2-(2). Life curve

(1 Form A 1 Form B, 2 Form A)

3-(1). Operate/Release time (1 Form A)

Tested sample: DK1a-24V, 5 pcs.

3-(2). Operate/Release time

(1 Form A 1 Form B, 2 Form A)

Tested sample: DK1a1b-12V, 5 pcs.

012

345

67

89

10

10

100

1,000

1

Contact current, A

250 V AC resistive load

30 V DC resistive load

250 V AC inductive load (cos

ϕ= 0.4)

30 V DC inductive load (L/R = 7 ms)

80

90

10

110

120

130

140

0

1

2

3

4

5

6

7

8

9

Coil applied voltage,%V

Release time

(with diode)

Operate time

Release time

x

x

Max.

Min.

Max.

Max.

Min.

Min.

x

80

90

10

110

120

130

140

0

1

2

3

4

5

6

7

8

9

Coil applied voltage,%V

Min.

Max.

x

Max.

Max.

Min.

Min.

Release time

(with diode)

Operate time

Release time

x

x