Contact Annunciator Relay Unit MYA
Caution
Product Description
[Features]
· Safety protective equipment optimized for centralized alarm system for all types of control circuits.
· Model MYA combines with model MY4 mini power relay to provide alarm functions for all types.
· In addition to being a small, plug-in type that saves space and allows for simple maintenance, there are 4 general varieties, so you can select the most appropriate for your needs.
· Lloyd's certified product (model MYM-LA12, -LB12 not included).
Relay Circuit Unit (Annunciator With Contacts) Specifications
| Relay Number | Operating Method | Alarm Contact | Classification | - | Voltage (V) |
|---|---|---|---|---|---|
| 2 | Non-locking | a | With auxiliary contacts | Model MYA-NA2 | AC 100/110, 200/220 |
| DC 24, 100/110 | |||||
| Without auxiliary contacts | Model MYA-NA1 | AC 100/110, 200/220 | |||
| Lock-in | a | With auxiliary contacts | Model MYA-LA2 | AC 100/110, 200/220 | |
| DC 24 | |||||
| Without auxiliary contacts | Model MYA-LA1 | AC 100/110, 200/220 | |||
| DC 24 | |||||
| b | With auxiliary contacts | Model MYA-LB2 | AC 100/110 | ||
| DC 24 | |||||
| 3 | a | No auxiliary contacts (includes circuit for confirming another reset performed after failure recovery) | Model MYA-LA12 | AC 100/110, 200/220 | |
| DC 24, 100/110 |
MYA-NA1/MYA-NA2/MYA-LA1/MYA-LA2/MYA-LB2 external appearance
MYA-NA1/MYA-NA2/MYA-LA1/MYA-LA2/MYA-LB2 dimensional drawing, Units: mm
MYA-LA12 external appearance
MYA-LA12 dimensional drawing, Units: mm
Socket Mounting Height
With surface connection socket, Units: mm
- *Dimensions for Model MYA-LA12 are given in parentheses.
- *Model PF113A is for both rail mounting and screw-fastening type mounting.
With rear surface connection socket, Units: mm
- *Dimensions for Model MYA-LA12 are given in parentheses.
Rating
Switch (Contact)
| Load | Resistive Load | Inductive load (cosφ = 0.4, L/R = 7 ms) |
|---|---|---|
| Contact Mechanism | Single (Model MY Series) | |
| Contact Material | Ag (Model MY Series) | |
| Rated Load | 220 V AC 3 A, 24 V DC 3 A | 220 V AC 0.8 A, 24 V DC 1.5 A |
| Rated Carry Current | 3 A | |
| Max. Contact Voltage Value | 250 V AC, 125 V DC | |
| Max. Contact Current Value | 3 A | |
| Maximum Switching Capacity Value (Reference Value) | 660 VA 72 W | 176 VA 36 W |
| Failure Rate (P Level) (Reference Value*) | 1 V DC 1 mA | |
- *This value is based on a switching frequency of 120 operations/min. Model MYA-NA1 has a different contact rating.
| Contact Resistance *1 | 50 mΩ max. | |
|---|---|---|
| Operating Time *2 | 20 ms max. | |
| Recovery Time *2 | 20 ms max. | |
| Maximum Switching Frequency | 1,800 operations/hr (rated load) | |
| Insulation Resistance *3 | 100 MΩ min. | |
| Dielectric Strength | Between Different Poles | 1,000 V AC 50/60 Hz for 1 min |
| Vibration | Durability | 10 to 55 to 10 Hz, 0.5-mm single amplitude (1.0-mm double amplitude) |
| Malfunction | 10 to 55 to 10 Hz, 0.5-mm single amplitude (1.0-mm double amplitude) | |
| Shock | Durability | 1,000 m/s2 |
| Malfunction | 200 m/s2 | |
| Durability | Mechanical | Minimum of 50,000,000 operations for AC Minimum of 100,000,000 operations for DC (switching frequency 18,000 operations/hr) |
| Electrical *4 | 200,000 operations min. (at 1,800 operations/hr under rated load) | |
| Ambient Operating Temperature | -10 to +40°C (assuming no icing or condensation) | |
| Ambient Operating Humidity | 5 to 85% RH | |
| Weight | Approx. 100 to 150 g | |
- The values given above are initial values.
- *The contact resistance is the value per contact.
*1. Measurement conditions: 5 V DC, 1 A, voltage drop method.
*2. Measurement conditions: Rated operating voltage applied, not including contact bounce. Ambient temperature: +23°C
*3. Measured with a 500 V DC ohmmeter at the same places that the dielectric strength was checked.
*4. Ambient temperature conditions: +23°C
- *See the catalog for operational data etc.