Panasonic LD Relays (ALD) User Manual

LD (ALD)

LD RELAYS (ALD)

15.0

.591

20.3

.799

7.0

.276

mm 

inch

20.3(L)

×7.0(W)×15.0(H) mm

.799(L)

×.276(W)×.591(H) inch

2. Perfect for small load switching of 
home appliances
10

5

 switching operations possible with a 

3A 250V AC resistive load.

3. Low operating power
Compact size, nominal operating power 
as low as 200mW.

4. High shock resistance
The relay withstands a functional shock 
resistance of 300m/s

2

 [approx. 30 G 

more]

5. High insulation resistance
• Creepage distance and clearances 
between contact and coil: Min. 6 mm 

.236 

inch

 (In compliance with IEC65)

• Surge withstand voltage between 
contact and coil: 10,000 V or more.

#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.

* Specifications will vary with foreign standards certification ratings.
*

1

Measurement at same location as “Initial breakdown voltage” section.

*

2

Detection current: 10mA

*

3

Wave is standard shock voltage of 

±1.2×50ms according to JEC-212-1981

*

4

Excluding contact bounce time.

*

5

Half-wave pulse of sine wave: 11 ms; detection time: 10 

µs

*

6

Half-wave pulse of sine wave: 6 ms

*

7

Detection time: 10 

µs

Arrangement

1 Form A

Initial contact resistance, max. 
(By voltage drop 6 V DC 1 A)

Max. 100 m

Ω

Contact material

AgSnO

2

 type

Rating 
(resistive load)

Nominal switching capacity

3 A 277 V AC, 

3 A 30V DC

Max. switching power

831 V A (AC), 

90W (DC)

Max. switching voltage

277 V AC, 30 V DC

Max. switching current

3 A

Min. switching capacity

#1

100 mA, 5 V DC

Expected life 
(min.operations)

Mechanical (at 180 cpm)

5

×10

6

Electrical 
(at 20 cpm) 
(at rated load)

3A 125V AC, 
3A 30V DC

2

×10

5

3A 250V AC

10

5

Nominal operating power

200 mW

Max. operating speed

20 cpm (at rated load)

Initial insulation resistance*

1

Min. 1,000 M

Ω (at 500 V DC)

Initial*

2

 

breakdown 
voltage

Between open 
contacts

750 Vrms for 1 min.

Between contact and 
coil

4,000 Vrms for 1 min.

Initial surge voltage between contact 
and coil*

3

Min. 10,000 V

Operate time*

4

 (at nominal voltage)

Max. 10ms (at 20

°C 

68

°F

)

Release time (with diode)*

4

 

(at nominal voltage)

Max. 10ms (at 20

°C 

68

°F

)

Temperature rise (at 70

°C 

158

°F

)

Max. 45

°C with nominal coil 

voltage and at 3 A contact 

carrying current 

(resistance method)

Shock resistance

Functional*

5

Min. 300 m/s

2

{approx. 30 G}

Destructive*

6

Min. 1,000 m/s

2

{approx. 100 G}

Vibration resistance

Functional*

7

10 to 55Hz 

at double amplitude of 1.5mm

Destructive

10 to 55Hz 

at double amplitude of 1.5mm

Conditions for operation, 
transport and storage*

8

(Not freezing and 
condensing at low 
temperature)

Ambient 
temp.

–40

°C to +70°C 

–40

°F to +158°F

Humidity

5 to 85% R.H.

Unit weight

Approx. 4 g 

.14 oz

Contact arrangement

Coil voltage (V DC)

1: 1 Form A

4H: 4.5,

0

5: 5,

0

6: 6, 

Packing style

Nil: 

W: 

Tube packing
Carton packing

Product name

LD

UL/CSA, TÜV, VDE approved type is standard.
Note: Tube packing: Tube: 50pcs, Case: 1,000pcs

 Carton packing: Carton: 100pcs, Case: 500pcs

Ex.

A

LD

1

12

W

0

9: 9  ,

12: 12
18: 18

24: 24

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OPYRIGHT

 Matsushita Electric Works, Ltd.