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Latching Relay
Mechanically Latching Relays Based on the MM Power Relay
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Coil Ratings
Set Coil
| Rated voltage (V) | Rated current (mA) | Coil resistance (Ω) | Set volt. | Max volt. | Power consumption (VA or W) | |||||||||
| DP | 3P, 4P | |||||||||||||
| Open Relays | Cased | Open Relays | Cased | |||||||||||
| 50 Hz | 60 Hz | 50 Hz | 60 Hz | 50 Hz | 60 Hz | 50 Hz | 60 Hz | DP | 3P, 4P | % of rated voltage | ||||
| AC | 6 | 790 | 655 | 690 | 590 | 1285 | 1100 | 1165 | 1000 | 1.1 | 0.46 | 80% max. | 110% | Initial: DP: Approx. 6.2 3P, 4P: Approx. 12 Rated: DP: Approx. 3.5 (3.9) 3P, 4P: Approx. 6 (6.6)* |
| 12 | 395 | 325 | 345 | 295 | 640 | 550 | 580 | 500 | 4.7 | 1.9 | ||||
| 24 | 195 | 160 | 170 | 145 | 320 | 275 | 290 | 250 | 19 | 8.2 | ||||
| 50 | 94 | 78 | 82 | 70 | 154 | 132 | 140 | 120 | 82 | 34 | ||||
| 100/ (110) | 47 | 39/ 45 | 41 | 35/ 40 | 77 | 66/ 76 | 70 | 60/ 68 | 340 | 141 | ||||
| 200/ (220) | 23.5 | 19.5/ 22.5 | 20.5 | 17.5/ 20 | 38.5 | 33/ 38 | 35 | 30/ 34 | 1540 | 563 | ||||
| DC | 6 | 340 | 450 | 17.5 | 13.4 | DP: Approx. 2.1 3P, 4P: Approx. 2.7 | ||||||||
| 12 | 176 | 220 | 68 | 54 | ||||||||||
| 24 | 87 | 94 | 275 | 255 | ||||||||||
| 48 | 41 | 52 | 1180 | 930 | ||||||||||
| 100/ 110 | 17/19 | 22/24.5 | 5750 | 4500 | ||||||||||
| 200/ 220 | 8.6/9.5 | 11/12 | 23200 | 18000 | ||||||||||
Note:
1. The rated current and coil resistance are measured at a coil temperature of 23°C with tolerances of +15% ⁄ -20% for AC rated current and ±15% for DC coil resistance.
2. Performance characteristic data are measured at a coil temperature of 23°C.
3. The AC coil resistance values are reference values.
4. The maximum voltage is one that is applicable instantaneously to the Relay coil at an ambient temperature of 23°C and not continuously.
*Values in parentheses are for open relays.
Reset Coil
| Rated voltage (V) | Rated current (mA) | Coil resistance (Ω) | Reset voltage | Maximum voltage | Power consumption (VA or W) | ||
| 50 Hz | 60 Hz | % of rated voltage | |||||
| AC | 6 | 770 | 690 | 2.3 | 80% max. | 110% | Initial: Approx. 6.5 Rated:Approx. 4.1 |
| 12 | 385 | 345 | 9.2 | ||||
| 24 | 191 | 170 | 35 | ||||
| 50 | 92 | 82 | 175 | ||||
| 100/(110) | 46 | 41/46 | 739 | ||||
| 200/(220) | 23 | 20/23 | 3030 | ||||
| DC | 6 | 422 | 14.2 | Approx. 2.8 | |||
| 12 | 215 | 56 | |||||
| 24 | 109 | 220 | |||||
| 48 | 58 | 832 | |||||
| 100/110 | 25/27 | 4040 | |||||
| 200/220 | 12.2/13.5 | 16330 | |||||
Note:
1. The rated current and coil resistance are measured at a coil temperature of 23°C with tolerances of +15% ⁄ -20% for AC rated current and ±15% for DC coil resistance.
2. Performance characteristic data are measured at a coil temperature of 23°C.
3. The AC coil resistance values are reference values.
4. The maximum voltage is one that is applicable instantaneously to the Relay coil at an ambient temperature of 23°C and not continuously.
Coils (Conforming to Auxiliary Power Relay Specifications)
| Rated voltage (V) | Rated current (mA) | Coil resistance (Ω) | Set voltage | Reset voltage | Max. voltage | Operation level (JEC-174D) | Power consumption (VA or W) | ||||||||
| Set coil | Reset coil | Set coil | Reset coil | Set coil | Reset coil | ||||||||||
| 50 Hz | 60 Hz | 50 Hz | 60 Hz | % of rated voltage | Initial | Rated | Initial | Rated | |||||||
| AC | 24 | 245 | 210 | 191 | 170 | 8.5 | 35 | 80% max. | 80% max. | 110% | A | Approx. 6.3 | Approx. 5.1 | Approx. 6.5 | Approx. 4.1 |
| 50 | 117 | 102 | 92 | 82 | 36 | 175 | |||||||||
| 100/ (110) | 58.5 | 51/58 | 46 | 41/46 | 150 | 739 | |||||||||
| 110 | 53 | 46 | 42 | 37.3 | 182 | 835 | |||||||||
| 115 | 51 | 44 | 40 | 35.7 | 210 | 885 | |||||||||
| 200/ (220) | 29 | 25.5/29 | 23 | 20.5/23 | 620 | 3030 | |||||||||
| 220 | 26.5 | 23 | 21 | 18.6 | 780 | 3420 | |||||||||
| DC | 24 | 94 | 109 | 255 | 220 | Approx. 2.7 | Approx. 2.8 | ||||||||
| 48 | 52 | 58 | 930 | 832 | |||||||||||
| 100/ 110 | 22/24.5 | 25/27 | 4500 | 4040 | |||||||||||
| 125 | 22 | 23.5 | 5800 | 5330 | |||||||||||
| 200/ 220 | 11/12 | 12.2/13.5 | 18000 | 16330 | |||||||||||
Note:
1. The rated current and coil resistance are measured at a coil temperature of 23°C with tolerances of +15% ⁄ -20% for AC rated current and ±15% for DC coil resistance.
2. The AC coil resistance and coil inductance values are for reference only.
3. Performance characteristic data are measured at a coil temperature of 23°C.
4. The maximum voltage is one that is applicable instantaneously to the Relay coil at an ambient temperature of 23°C and not continuously.
Contact Ratings
Standard Relays
| Item | Open Relays: MM2K(B), MM3K(B), MM4K(B) | Cased Relays: MM2KP, MM3KP, MM4KP | ||
| Resistive load (cosΦ = 1) | Inductive load (cosΦ =0.4, L/R=7 ms) | Resistive load (cosΦ = 1) | Inductive load (cosΦ =0.4, L/R=7 ms) | |
| Contact mechanism | Single | |||
| Contact material | Ag | |||
| Rated load | 10 A at 220 VAC 7 A at 24 VDC | 5 A at 220 VAC 4 A at 24 VDC | ||
| Rated carry current | 10 A | 5 A | ||
| Max. switching voltage | 250 VAC, 250 VDC | 250 VAC, 250 VDC | ||
| Max. switching current | 10 A | 5 A | ||
| Max. switching power (reference value) | 2,200 VA, 168 W | 1,100 VA, 96W | ||
DC-switching Relays
| Item | Open Relays: MM2XK(B), MM3XK(B), MM4XK(B) | Cased Relays: MM2XKP, MM3XKP, MM4XKP | ||
| Resistive load (cosΦ = 1) | Inductive load (cosΦ =0.4, L/R=7 ms) | Resistive load (cosΦ = 1) | Inductive load (cosΦ =0.4, L/R=7 ms) | |
| Contact mechanism | Single | |||
| Contact material | Ag | |||
| Rated load | 7 A at 110 VDC | 6 A at 110 VDC | 5 A at 110 VDC | |
| Rated current flow | 10 A | 5 A | ||
| Max. switching voltage | 250 VAC, 250 VDC | 250 VAC, 250 VDC | ||
| Max. switching current | 10 A | 5 A | ||
| Max. switching power (reference value) | 800 W, 20 VA | 660 W, 20 VA | 700 W, 20 VA | 600 W, 20 VA |
Note:
1. When switching DC inductive loads at 125 V or more, an unstable region exists for a switching current of between 0.5 and 2.5 A. The Relay will not turn OFF in this region. Use a switching current of 0.5 A or less when switching 125 VDC or more.
2. If L ⁄ R exceeds 7 ms when switching DC inductive loads, an arc-breaking time of up to 50 ms must be considered in application and the circuit must be designed to ensure that an arc-breaking time of 50 ms is not exceeded.
Contacts (Conforming to Auxiliary Power Relay Specifications)
| Item | MM4KP-JD | MM4XKP-JD | ||
| Resistive load (cosΦ = 1) | Inductive load (cosΦ = 0.4, L/R= 7 ms) | Resistive load (cosΦ = 1) | Inductive load (cosΦ = 0.4, L/R= 7 ms) | |
| Contact mechanism | Single | |||
| Contact material | Ag | |||
| Rated load | 5 A at 220 VAC, 4 A at 24 VDC | 5 A at 110 VDC | ||
| Rated carry current | 5 A | |||
| Max. switching voltage | 250 VAC, 250 VDC | |||
| Max. switching current | 5 A | |||
Note:
1. When switching DC inductive loads at 125 V or more, an unstable region exists for a switching current of between 0.5 and 2.5 A. The Relay will not turn OFF in this region. Use a switching current of 0.5 A or less when switching 125 VDC or more.
2. If L ⁄ R exceeds 7 ms when switching DC inductive loads, an arc-breaking time of up to 50 ms must be considered in application and the circuit must be designed to ensure that an arc-breaking time of 50 ms is not exceeded.
Characteristics
| Item | Open or bifurcated-contact Relays |
| Contact resistance (see note 2) | 50 mΩ max. |
| Set time (see note 3) | AC: 30 ms max.; DC: 60 ms max. (minimum pulse width for AC and DC: 100 ms) |
| Reset time (see note 3) | 30 ms max. (minimum pulse width for AC and DC: 100 ms) |
| Max. operating frequency | Mechanical: 1,800 operations/hr Electrical: 1,800 operations/hr (under rated load) |
| Insulation resistance (see note 4) | 100 MΩ min. (at 500 VDC) |
| Dielectric strength | 1,500 VAC, 50/60 Hz for 1 min between contacts of same polarity 2,000 VAC, 50/60 Hz for 1 min between contacts of different polarity, between contacts and coil, and between set and reset coils |
| Vibration resistance | Destruction: 10 to 55 to 10 Hz, 0.375 mm single amplitude (0.75 mm double amplitude) Malfunction: 10 to 35 to 10 Hz, 0.5 mm single amplitude (1.0 mm double amplitude) |
| Shock resistance | Destruction: 500 m/s2 Malfunction: 50 m/s2 |
| Endurance | Mechanical: 2,500,000 operations min. (at 1,800 operations/hr) Electrical: 500,000 operations min. (at 1,800 operations/hr under rated load) (see note 5) |
| Error rate (level P) (Reference value) (see note 6) | 10 mA at 5 VDC |
| Ambient temperature | Operating: -10°C to 55°C (with no icing or condensation) |
| Ambient humidity | Operating: 5% to 85% |
| Weight | Standard Relays DC-switching Relays MM2K: Approx. 255 g MM2XK: Approx. 260 g MM3K: Approx. 390 g MM2XK: Approx. 395 g MM4K: Approx. 420 g MM4XK: Approx. 430 g MM2KP: Approx. 375 g MM2XKP: Approx. 380 g MM3KP: Approx. 550 g MM3XKP: Approx. 555 g MM4KP: Approx. 570 g MM4XKP: Approx. 580 g |
Note:
1. The data shown above are initial values.
2. The contact resistance was measured with 1 A at 5 VDC using the voltage drop method.
3. The set or reset time was measured with the rated voltage imposed with any contact bounce ignored at an ambient temperature of 23°C.
4. The insulation resistance was measured with a 500-VDC megger applied to the same places as those used for checking the dielectric strength.
5. The electrical endurance was measured at an ambient temperature of 23°C.
6. This value was measured at a switching frequency of 60 operations per minute.
Characteristics (Conforming to Auxiliary Power Relay Specifications)
| Vibration resistance | Destruction: 10 to 55 to 10 Hz, 0.375 mm single amplitude (0.75 mm double amplitude) Malfunction: 10 to 22 to 10 Hz, 0.5 mm single amplitude (1.0 mm double amplitude) |
| Shock resistance | Destruction: 300 m/s2 Malfunction: 30 m/s2 |
| Endurance | Mechanical: 2,500,000 operations min. (at 1,800 operations/hr) Electrical: 500,000 operations min. (at 1,800 operations/hr under rated load) (see note 2) |
| Error rate (level P) (Reference value) (see note 3) | 10 mA at 5 VDC |
| Ambient temperature | Operating: -10°C to 40°C (with no icing or condensation) |
| Ambient humidity | Operating: 5% to 85% |
| Weight | MM4KP-JD: Approx. 570 g MM4XKP-JD: Approx. 580 g |
Note:
1. The data shown above are initial values.
2. The electrical endurance was measured at an ambient temperature of 23°C.
3. This value was measured at a switching frequency of 60 operations per minute.
Caution: In the interenst of product improvement, specifications are subject to change without notice.