Ametherm thermistor Inrush Current Limiters have become the industry standard to reduce inrush current across the electronics industry. With the development of Ametherm’s MM35-DIN Series, Inrush Current Limiters can now take on industrial-strength high power inrush current inrush for high power industrial applications.
High Power Inrush Current Deserves Industrial Strength Inrush Current Protection
With continuous current ratings from 50A to 80A at 680V RMS and energy to 1,200 joules, the Ametherm MM35-DIN Series of Inrush Current Limiters can handle the high power levels found in the industrial environment.
Benefits of Employing the MM35-DIN Series
The MM35-DIN Series offer:
- Higher energy ratings.
- Ideal for power distribution.
- Higher continuous current ratings.
- Ideal for systems that are typically powered on once daily.
- Single Part Solution. No need for additional by-pass circuitry.
Single and Three Phase Applications Include:
- AC Motors.
- Transformers.
- Power Supply/Inverters.
- Refer to the Maximum Power Ratings Chart for more applications.
SPECIAL INSTRUCTIONS
- Inrush Current Limiter Selection Process – Depending on your equipment and load type and your power requirements, go to the Inrush Current Limiter Selection calculators chart below to determine the right calculations for your application.
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| MM35-DIN Series Electrical Specifications | ||||
|---|---|---|---|---|
| MM35 0R280-DIN |
MM35 0R560-DIN |
MM35 1R050-DIN |
MM35 1R550-DIN |
|
| Resistance @ 25 °C | 0.2Ω ± 25% | 0.5Ω ± 25% | 1.0Ω ± 25% | 1.5Ω ± 25% |
| Max Steady State Current to 65°C | 80.0 A | 60.0A | 50.0A | 50.0A |
| Max Recommended Energy Rating ( J ) | 1200.0 Joules | |||
| Rhot @ 100% Steady State Current | 0.004Ω | 0.008Ω | 0.011Ω | 0.013Ω |
| Rhot @ 75% Steady State Current | 0.006Ω | 0.011Ω | 0.015Ω | 0.017Ω |
| Rhot @ 50% Steady State Current | 0.011Ω | 0.020Ω | 0.030Ω | 0.036Ω |
| Rhot @ 25% Steady State Current | 0.029Ω | 0.052Ω | 0.078Ω | 0.091Ω |
| Max Recommended Voltage | 680V RMS | |||
| Max Power | 38.4 W | |||
| Thermal Time Constant | < 5 mins | |||
| Steady State Current vs Body Temperature
Ambient Temperature =25 °C |
||||
|---|---|---|---|---|
| Steady State Current (A) | MM35 0R280-DIN |
MM35 0R560 -DIN |
MM35 1R050-DIN |
MM35 1R550-DIN |
| 5 | 49 | 61 | 66 | 71 |
| 10 | 73 | 90 | 101 | 99 |
| 15 | 93 | 110 | 123 | 121 |
| 20 | 108 | 128 | 140 | 139 |
| 25 | 123 | 144 | 155 | 152 |
| 30 | 134 | 157 | 168 | 165 |
| 35 | 147 | 169 | 182 | 177 |
| 40 | 156 | 178 | 191 | 188 |
| 45 | 166 | 188 | 202 | 198 |
| 50 | 174 | 200 | 214 | 208 |
| 55 | 181 | 207 | ||
| 60 | 190 | 217 | ||
| 65 | 196 | |||
| 70 | 203 | |||
| 75 | 209 | |||
| 80 | 215 | |||
| Typical Maximum Power Ratings for Common Applications |
|||
|---|---|---|---|
| Load Type | Equipment Type | Single-Phase | Three-Phase |
| Inductive | Transformer AC Motor |
40 kVA 50 HP |
70 kVA 90 HP |
| Capacitive | Variable Frequency Drive Power Supply/Inverter Capacitor Bank* |
50 HP 40 kW 2100 µF |
90 HP 70 kW 2100 µF |
| Resistive | Heater/Lamp** | 6 kW | |
| *680 V RMS Max Voltage | **200 Milliseconds Max Inrush Current Duration | ||
| Inrush Current Limiter Selection Calculator | |||
|---|---|---|---|
| Load Type | Equipment Type | Single-Phase Power | Three-Phase Power |
| Inductive | Transformer AC Motor |
Go to Calculator Go to Calculator |
Go to Calculator Go to Calculator |
| Capacitive | Variable Frequency Drive Power Supply/Inverter Capacitor Bank |
Go to Calculator | Go to Calculator |
| Resistive | Heater/Lamp | Go to Calculator | Go to Calculator |
MM35-DIN Series Installation
Mounting MM35-DIN Inrush Current Limiters is a snap! Since they are designed for use with DIN blocks, mounting in a power control box requires just a screwdriver.
Whether you’re dealing with three-phase or single-phase power, the MM35-DIN Series of Inrush Current Limiters is your best choice for your high power application requirements.
Contact us for more information on our MM35-DIN Series of Inrush Current Limiters. Our engineers are always available to assist you.
For immediate delivery on any of our products, please visit our network of distributors.
| Ametherm MM35-DIN series – Digikey Buy Now Links | ||||
|---|---|---|---|---|
| Ametherm Part Number | MM35 0R280-DIN | MM35 0R560-DIN | MM35 1R050-DIN | MM35 1R550-DIN |
| Ametherm Data Sheet | Data Sheet | Data Sheet | Data Sheet | Data Sheet |
| Digi-Key Electronics Buy Now | 570-1407-ND | 570-1408-ND | 570-1409-ND | 570-1410-ND |
