NAIS JH2a-L2-DC6V, JH2a-L2-DC48V, JH2a-L2-DC24V, JH2a-L2-DC12V, JH1a-L2-DC48V Datasheet

116

JH RELAYS

30 AMP PO WER RELAY WITH
SPACE SAVING DESIGN

VDE

mm inch

33

1.299

35.8

1.409

56

2.205

FEATURES

• Many safety-oriented characteristics
incorporated

Contact gap: more than 3 mm .118 inch

for 1 Form A and 2 Form A

Breakdown voltage for N.O. contact:

2,000 V AC between contacts
5,000 V AC between coil and contact

Molded materials: all 94 V-0

• Various contact arrangements

1 Form A, 2 Form A, 3 Form A,
2 Form A 1 Form B

• High dielectric strength for transient
protection

10,000 V surge is ms between coil and
contact

• High inrush resistance

1 Form A type: 117 A
(meets TV -8 requirement)
2 Form A type: 91 A
(meets TV -6 requirement)

VDE, TÜV also approved

SPECIFICATIONS

Contact

Coil

Characteristics

Arrangement 1 Form A 2 Form A 3 Form A 2 Form A 1 Form B
Initial contact pressure Approx. 80 g (2.82 oz) Approx. 40 g (1.41 oz) Approx. 30 g (1.06 oz) N.O.: 30 g (1.06 oz); N.C.: 20 g (0.71 oz)
Initial contact resistance, max.

(By voltage drop 6 V DC 1 A)

100 m

Ω

Contact material Silver alloy

Rating
(resistive
load)

Nominal switching rating 30 A 250 V AC 20 A 250 V AC 15 A 250 V AC N.O.: 15 A 250 V AC; N.C.: 5 A 250 V AC
Max. switching power 7,500 VA 5,000 VA 3,750 VA N.O.: 3,750 VA; N.C.: 1,250 VA
Max. switching voltage 250 V AC
Max. switching current 30 A 20 A 15 A N.O.: 15 A; N.C.: 5 A

Expected
life (min.
operations)

Mechanical (at 180 cpm) 5

×

106 (106 for latching and AC types)

Electrical
(at nominal resistive load)
(at 20 cpm)

10

5

Minimum operating power 1.23 W (DC)
Nominal operating power 1.92 W (DC)

Contact arrangement 1 Form A 2 Form A 3 Form A 2 Form A 1 Form B
Maximum operating speed 20 cpm
Initial insulation resistance*

1

Min. 100 mΩ at 500 V DC

Initial
breakdown
voltage

Between open contacts 2,000 Vrms N.O.: 2,000 Vrms; N.C.: 1,500 Vrms
Between contact sets — 4,000 Vrms 3,000 Vrms 2,000 Vrms
Between contacts and coil 5,000 Vrms N.O.: 5,000 Vrms; N.C.: 3,000 Vrms

Surge voltage*

2

More than 10,000 V between contacts and coil

Temperature rise (at nominal voltage) DC: Max. 65

°

C; AC: Max. 85°C

Operate time*

3

Approx. 20 ms at nominal voltage (DC)

Release time (without diode)*

3

Approx. 5 ms at nominal voltage (DC)

Shock resistance Functional: min. 98 m/s

2

{10 G}; Destructive: min. 980 m/s2 {100 G}

Functional: Approx. 49 m/s

2

{5 G}

Destructive: min. 980 m/s

2

{100 G}
Vibration resistance Functional: 10 to 55Hz at 1 mm double amplitude Destructive: 10 to 55 Hz at 1.5 mm double amplitude
Conditions for operation,

transport and storage*

4

(Not freezing and condens­ing at low temperature)

Ambient temp. –50°C to +55°C (–58°F to +131°F)
Humidity 5 to 85% R.H.

Air pressure 86 to 106 kPa

Molded materials used 94 V-0
Unit weight

Approx. 90 g 3.17 oz

(Approx. 115 g 4.06 oz)

Approx. 96 g 3.39 oz

(Approx. 129 g 4.55 oz)

Approx. 100 g 3.53 oz

(Approx. 130 g 4.59 oz) ( ): screw type

Remarks

* Specifications will vary with foreign standards certification ratings.
*1Measurement of same location as "Initial breakdown voltage" section
*2 Wave is standard shock voltage of ±1.2 × 50 µs according to JEC-212-1981

*

3

Excluding contact bounce time

*4Refer to 5. Conditions for operation, transport and storage mentioned in

AMBIENT ENVIRONMENT (Page 24).

JH

117

TYPICAL APPLICATIONS

Air conditioners, microwave ovens, load
management equipment, copiers, pro­cess control equipment.

ORDERING INFORMATION

2a L2 DC24VEx. JH

Contact arrangement

1a: 1 Form A
2a: 2 Form A
3a: 3 Form A
2a1b: 2 Form A 1 Form B

Nil: Plug-in
terminal type

DC 6, 12, 24, 48, 110 V

Nil: Single side stable for 3 Form A,

W: 2 Form A 1 Form B

L2: 2 coil latching for 1 Form A, 2 Form A
WL2: 2 coil latching for 3 Form A,

2 Form A 1 From B

Terminals Operating function

(Notes) 1. For UL/CSA recognized type, please add suffix UL/CSA.

(Notse) 2. Standard Packing: Carton 20 pcs, Case 100 pcs.

Coil voltage

TYPES AND COIL DATA

Single side stable (DC coils at 20°C 68°F): DC types of JH3a-W and JH2a1b-W

2 coil latching (DC coils only at 20°C 68°F): DC types of JH1a-L2, JH2a-L2 and JH3a-WL2

Nominal voltage,

V DC

Pick-up voltage Drop-out voltage

Maximum allowable

voltage, at 50°C

Coil resistance (ohm)

Nominal operating

power, (W)

6

Less than 80% of

nominal voltage

More than 10% of

nominal voltage

110% of

nominal voltage

18.7 1.92
12 75 1.92
24 300 1.92
48 1,200 1.92

110 6,300 1.92

Nominal voltage,

V DC

Set and reset voltage

Maximum allowable

voltage, at 50°C

Coil resistance, (Ω) Nominal operating power, (W)

Coil I Coil II Coil I Coil II

6

Less than 80% of

nominal voltage

110% of

nominal voltage

18.7 18.7 1.92 1.92
12 75 75 1.92 1.92
24 300 300 1.92 1.92
48 1,200 1,200 1.92 1.92

110 6,300 6,300 1.92 1.92

Notes:

1. Coil resistance varies ±10% for less
than 1,000 W, and ±15% for more than
1,000 Ω. For each ±1°C change in ambi­ent temperature, coil resistance varies

±

0.4%.

2. For each ±1°C change in ambient tem­perature, pick-up and drop-out voltages
vary approximately ±0.4%.

3. Pic k-up and drop-out voltages are mea­sured with the relay mounted as follows.

4. The coil operating current should be
pure direct current in principle. When rec­tified alternating current is applied to the
coil, the relay characteristics (pick-up,
drop-out voltage) may be changed due to
the ripple factor. Confirmation of the char­acteristics in the actual circuit is suggest­ed.