TX-TH
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 Refer to 6. Conditions for operation, transport and storage mentioned in AMBIENT ENVIRONMENT.
REFERENCE DATA
For general REFERENCE DATA, DIMENSIONS and NOTES, please refer to the
“TX Relay”.
Characteristics Item Specifications
Contact
Arrangement 2 Form C
Initial contact resistance, max. Max. 100 mΩ (By voltage drop 6 V DC 1A)
Contact material Ag+Au plating
Rating
Nominal switching capacity 2 A 30 V DC, 0.5 A 125 V AC (resistive load)
Max. switching power 60 W, 60 VA (resistive load)
Max. switching voltage 220V DC, 250V AC
Max. switching current 7.5 A (When used at 7.5 A. Regarding connection method, you must follow the precaution, below*.)
Min. switching capacity (Reference value)*110µA 10mV DC
Nominal operating
power
Single side stable 140 mW (1.5 to 24 V DC), 270 mW (48 V DC)
1 coil latching 100 mW (1.5 to 24 V DC)
2 coil latching 140 mW (1.5 to 24 V DC)
Electrical
characteristics
Insulation resistance (Initial) Min. 1,000MΩ (at 500V DC)
Measurement at same location as “Initial breakdown voltage” section.
Breakdown voltage
(Initial)
Between open contacts 1,000 Vrms for 1min. (Detection current: 10mA)
Between contact and coil 2,000 Vrms for 1min. (Detection current: 10mA)
Between contact sets 1,000 Vrms for 1min. (Detection current: 10mA)
Temperature rise (at 20°C 68°F)Max. 50°C
(By resistive method, nominal coil voltage applied to the coil; contact carrying current: 2A.)
Surge breakdown
voltage (Initial)
Between open contacts 1,500 V (10×160µs) (FCC Part 68)
Between contacts and coil 2,500 V (2×10µs) (Telcordia)
Operate time [Set time] (at 20°C 68°F) Max. 4 ms [Max. 4 ms] (Nominal coil voltage applied to the coil, excluding contact bounce time.)
Release time [Reset time] (at 20°C 68°F)Max. 4 ms [Max. 4 ms] (Nominal coil voltage applied to the coil, excluding contact bounce time.)
(without diode)
Mechanical
characteristics
Shock resistance Functional Min. 750 m/s2 (Half-wave pulse of sine wave: 6 ms; detection time: 10µs.)
Destructive Min. 1,000 m/s2 (Half-wave pulse of sine wave: 6 ms.)
Vibration resistance Functional 10 to 55 Hz at double amplitude of 3.3 mm (Detection time: 10µs.)
Destructive 10 to 55 Hz at double amplitude of 5 mm
Expected life
Mechanical Min. 108 (at 180 cpm)
Electrical
Min. 105 (2 A 30 V DC resistive), 5×105 (1 A 30 V DC resistive),
Min. 105 (0.5 A 125 V AC resistive) (at 20 cpm)
Min. 2×105 (7.5 A inrush (250 ms)/1.5 A normal 30 V AC (cosφ = 0.4)) (ON/OFF = 1s/9s)
Conditions Conditions for operation, transport and storage*2
Ambient temperature: –40°C to +85°C (up to 24 V coil) –40°F to +185°F
[–40°C to +70°C (48 V coil) –40°F to +158°F];
Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature)
Max. operating speed (at rated load) 20 cpm
Unit weight Approx. 2 g .071 oz
1. Electrical life (2 × 105 operation is possible)
Tested sample: TX2SA-24V-TH, 6 pcs.
Switching frequency: ON:OFF = 1s:9s
Ambient temperature: 25°C 77°F
Circuit
Condition: 30 V AC
Inrush current 7.5 A (execution value),
inrush time 250 ms
Normal current 1.5 A (execution value),
(inductive load cosφ = 0.4)
Inrush current wave form vs time
COM1 NO1
24V
60Hz
G
AC30V
Detection
Circuit
Contact Weld
Min 0.5s
Miss Contact
after 0.2s
–
+
Time (ms), Interval (200ms)
Contact current, A
12
8
4
0
-4
-8
-12
*Precaution
When using at 7.5 A, connection of NO
(pin #5 and #8) and COM (pin #4 and #9)
in the circuit is required.
Pin layout and schematic (BOTTOM VIEW)
1 coil latching
Load
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