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NR-HD-12 Schematic ( PDF Datasheet ) - Nais

Teilenummer NR-HD-12
Beschreibung (NR-xx) LONG LIFE RELAY
Hersteller Nais
Logo Nais Logo 




Gesamt 8 Seiten
NR-HD-12 Datasheet, Funktion
www.DataSheet4U.com
LONG LIFE RELAY
UL CSA
pending pending
NR-RELAYS
FEATURES
20
.787
10
.394
10
.394
• Sealed construction for automatic wave soldering and cleaning
• Latching types available
• High sensitivity — TTL direct drive possible
• High speed — Up to 500 cycle/sec. operations
• Wide switching range and high welding resistance
Gold cobalt (AuCo) contact permits
• Wider switching range from low level up to high current: 10 µA to 1 A
mm inch
• Higher sticking resistance to inrush current
• Stable contact resistance from initial stage throughout life
SPECIFICATIONS
Contact
Arrangement
Initial contact resistance, max.
(By voltage drop 6 V DC 1 A)
Initial contact pressure
Contact material
Contact-
Contact
Sealed type
Magnetically
sealed type
Electrostatic
capacitance
N.O.
contact-coil
N.C.
contact-coil
Sealed type
Magnetically
sealed type
Sealed type
Magnetically
sealed type
Nominal switching capacity
Rating
(resistive)
Expected
life (min.
operations)
Max. switching power
Max. switching voltage
Max. switching current
Min. switching power
Mechanical (at 500 cps.)
1 A 20 V DC/
0.3 A 110 V AC
0.5 A 30 V DC/
0.1 A 110 V AC
Electrical
(resistive)
0.25 A 30 V DC/
0.25 A 30 V AC
0.2 A 24 V DC/
0.2 A 24 V AC
0.1 A 12 V DC/
0.1 A 12 V AC
0.1 A 9 V DC/
0.1 A 9 V AC
1 Form C
60 m
Approx. 5 g .18 oz
Gold cobalt
3 pF
4 pF
4 pF
5 pF
5 pF
6 pF
1A 20 VDC,
0.3A 110 VAC
33 VA, 20 W
110 V AC, 30 V DC
AC 0.3 A, DC 1 A
Approx. 100 mV 10µA
109
106 (at 1 cps.)
3×106 (at 2 cps.)
5×106 (at 5 cps.)
107 (at 25 cps.)
5×107 (at 50 cps.)
108 (at 100 cps.)
Coil (polarized) (at 25°C 77°F)
Single side stable
Minimum operting power 1 coil latching
2 coil latching
Single side stable
Nominal operating power 1 coil latching
2 coil latching
72 to 133 mW
41 to 45 mW
72 to 107 mW
147 to 300 mW
74 to 153 mW
147 to 331 mW
Characteristics (at 25°C 77°F)
Max. operating speed
500 cps. (mechanical)
Initial insulation resistance*1
Min. 1000 Mat 500 V DC*2
Initial
breakdown
voltage*3
Between live parts
and ground
Between open
contact
Between contact
and coil
1,000 Vrms
350 Vrms (500 V DC)
1,000 Vrms
Operate time*4
(at nominal voltage)
Max. 3 ms (Approx. 1 ms)
Release time (without diode)*4
(at nominal voltage)
Max. 2 ms (Approx. 0.5 ms)
Contact Single side stable
bounce
time 1-coil /2-coil latching
Approx. 0.5 ms
Approx. 0.3 ms
Temperature rise
Max. 35°C at 0.5 W operating power
Max. 65°C at 1 W operating power
Functional*5
Shock resistance
Destructive*6
Min. 980 m/s2 {100 G}
Min. 980 m/s2 {100 G}
Vibration
resistance
Functional*7
Destructive
98 m/s2 {10 G}, 10 to 55 Hz
at double amplitude of 1.6 mm*8
117.6 m/s2 {12 G}, 10 to 55 Hz
at double amplitude of 2 mm
Conditions for opera-
tion, transport and
storage*9 (Not freez-
ing and condensing
at low temperature)
Ambient
temp.
Humidity
–55°C to +65°C*10
–67°F to +149°F
5 to 85% R.H.
Unit weight
Approx. 7 g .25 oz
Remarks
* Specifications will vary with foreign standards certification ratings.
*1 Measurement at same location as "Initial breakdown voltage" section
*2 Min. 500Mat 100 V DC between coils of 2 coil latching type
*3 Detection current: 10mA, Except for between coils of 2 coil latching type
*4 Excluding contact bounce time
*5 Half-wave pulse of sine wave: 6ms; detection time: 10µs
*6 Half-wave pulse of sine wave: 6ms
*7 Detection time: 10µs
*8 Although NR relays are rated at 10 G/55 cps. vibration resistance, they will with-
stand up to 60 G/2,000 cps., provided they receive additional support such as
anchoring to the PC board with epoxy resin.
*9 Refer to 5. Conditions for operation, transport and storage mentioned in
AMBIENT ENVIRONMENT (Page 61)
*10 Total temperature (ambient temperature plus temperature rise in coil) should not
exceed 90°C 194°F for single side stable, and 105°C 221°F for latching relays.
See Reference Data for determination of coil voltage versus temperature.
112






NR-HD-12 Datasheet, Funktion
www.DataSheet4U.com
NR
The following is life data under our HP2 relay load.
Contact voltage
Contact current
Contact protection circuit
Operating speed
Expected life, min. op.
6 V DC
12 V DC
24 V DC
100 V DC
24 V DC
100 V DC
200 V DC
232 mA
106 mA
54 mA
15 mA
80 mA
20 mA
10 mA
0.2 µF + 1kor diode
0.2 µF + 1kor diode
0.1 µF + 1kor diode
0.1 µF + 1kor diode
0.2 µF + 1k
0.1 µF + 1kor varistor
0.1 µF + 1k
2 op./s
2 op./s
2 op./s
2 op./s
2 op./s
2 op./s
2 op./s
3×107
3×107
3×107
2×107
3×107
2×107
2×107
(Notes)
1. When inrush current occurs in the capacitor load circuit or incandescent lamp load circuit, reduce it to less than 5 A. Electrical life of "AuCo" contact
types is 10,000 operations in a 5 A inrush current circuit.
2. When 5 A to 10 A inrush current occurs in the capacitor load circuit or incandescent lamp load circuit, the use of power types is recommended.
2 coil latching types
A) The circuit at right is recommended
when using one coil for latching and the
other coil for reset.
NR relays are sensitive enough to be op-
erated by the discharge of energy accu-
mulated in the inner-coil capacitance. The
use of a diode of over 200 V breakdown
will prevent misoperation from this source.
In order to maintain the insulation be-
tween the two coils, connection of the ter-
minal No. 3 and No. 6 or the terminal No.
2 and No. 5 is recommended, as shown in
the right figure.
Rectifiers should be inserted in this circuit
when the nominal coil voltage of the NR
relay is more than 24 V DC.
B) No damage will occur to the coil of ei-
ther the one or two coil latching types
even if the operating voltage is as much
as 2 or 3 times the nominal coil voltage.
C) If separate pulses are applied to each
coil of the 2 coil latching types, the first
pulse will operate when the pulses are of
equal voltage. When voltages differ the
higher voltage will cause operation pro-
vided the voltage difference is greater
than the measured pick-up voltage. Volt-
age difference on the coils will reduce
contact pressure proportionately.
Continuous bias voltage after an operat-
ing pulse lowers contact pressure and vi-
bration resistance.
coil
bias voltage
coil
Ripple factor
Coils should be operated on pure DC.
Rectified AC may cause changes in the
pick-up/drop-out characteristics because
of the ripple factor. Use of a capacitor in
the circuit is recommended to keep the
ripple factor below 5%.
R : relay
R
capacitor (ripple filter)
Pulsating component To calculate the ripple factor
E min. E max. E mean
DC component
Ripple factor (%) = E max. – E min. × 100%
E mean
E max. = max. value of pulsating component
E min. = min. value of pulsating component
E mean - average value DC component
When designing NR relay circuits
Care should be taken when designing re-
lay circuits since the response of the relay
is so fast that bouncing or chattering from
conventional relays in the circuit may
cause false operation.
When using long lead wires
When long wires (as long as 100 m or
more) are to be used, the use of resis-
tance (10 to 50 ) in series with the con-
tact is required in order to eliminate the
effect of the possible inrush current due to
the stray capacitance existing between
the two wires or between the wire and
ground.
(Equivalent circuit)
Contact of NR relay
10 to 50
Lead wire
(100 to 300 m)
+
Energy accumulated in
static capacitance
117

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