2JB2-2 Sealed Magnetic Latching Relays
Environmental Characteristics
| No | Parameter | Environmental Specification | |||
| 1 | Quality Grade | Ⓙ, (G) | Aerospace (CAST) | ||
| II | IV | ||||
| 2 | Temperature Range | (℃) | -55~85 | ||
| 3 | Relative Humidity | (40±2) ℃, 90%~95% | |||
| 4 | Low Pressure | (kPa) | 0.67~0.27 | ||
| 5 | Sinusoidal Vibration | (Hz) | 10~2000 | ||
| (m/s2) | 147 | 196 | |||
| 6 | Random Vibration | ((m/s2)2/Hz) | – | 20 | |
| 7 | Shock | (m/s2) | 490 | 784 | |
| 8 | Constant Acceleration | (m/s2) | 490 | 735 | |
Main Characteristics
(The following table list Aerospace product indicators, other quality levels, please refer to their respective specifications)
| Contact Arrangement | Main: 2 groups of N.O.
Auxiliary: SPDT |
Operating Time (ms) | ≤25 | ||
| Coil Power (W) | 3.34 | Release Time(ms) | – | ||
| Leak Rate (Pa.cm3/s) | ≤1×10-3 | Load Ratings | Resistive | Main: 2A,110 Vd.c. Auxiliary: 1A, 28 Vd.c. |
|
| Contact Resistance(Ω) | Initial | Main ≤0.05, Aux. ≤0.05 | Low Level | 10 µA~50µA,
10 mV~50mV |
|
| After Life | Main ≤0.0875, Aux. ≤0.0875 | Life Time (Cycles) | 2×104 | ||
| Insulation Resistance (MΩ) | Normal | ≥500(500 Vd.c.) | Overload Rating | Resistive,4A,110 Vd.c. | |
| High Temp./Humidity | ≥10(500 Vd.c.) | ||||
| Dielectric Strength (50Hz) | Normal | ≥500 Vr.m.s | Weight(g) | ≤45 | |
| Low pressure | ≥200 Vr.m.s | ||||
Electrical Specification (V d.c.)
| Specification No. | Coil Voltage | 20℃ | Overall Temperature Range | ||||
| Normal | Max | Coil resistance
(1±10%) Ω |
Operating Voltage (max) | Release Voltage (min) | Operating Voltage (max) | Release Voltage (min) | |
| 028 | 28 | 30 | 235 | 18 | — | 24 | — |
Dimensions |
Circuit Diagram |
Resistive Load Diagram |
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 |
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Order Mark
- CAST Grade product:
Example: 2JB2-2- 28 B Z1
| 2JB2-2 | – | 28 | B | Z1 |
| Product number | Coil voltage | Mounting style | Improved identification |
Detailed specification: CASTPS06/005A-2008
- G grade product:
Example: 2JB2-2/II28 B
| 2JB2-2 | / | II | 28 | B |
| Product number | Environmental rating | Coil voltage | Mounting style |
Detailed specification: Q/RYJ0181-2004
