MS-N Series electromagnetic contactor, main circuit B contact type
Brand :
MITSUBISHI
Caution
- The product images are representative only. Please refer to the catalog for details of the shape.
Product Description
Mitsubishi electromagnetic switch's electromagnetic contactor.
[Features]
· The main circuit contact is a b contact (normally closed contact)
· Types include B-T/N type for AC operation and BD-T/N type for direct current operation
[Applications]
· For short circuiting the motor starting resistor
· For soft starting of AC motors
· For dynamic braking (generator braking) and for switching between AC and direct current power supply in lighting circuits
MS-N Series Main Circuit B Contact Type AC Operation Type Electromagnetic Contactor Features
- External dimensions and mounting surface area are greatly decreased compared to the conventional product, making for a small size and saving space.
- Uses AC operation DC excitation method electromagnet.
- Fully prevents noise.
- Wide shared rated coil (nominal 200 V AC: rated 200 to 240 V AC 50/60 Hz).
- Built-in surge absorbing function.
- Greatly reduced power consumption.
- Can be used with live part protection cover UN-CV / CZ□ type.
- Twin contacts with high contact reliability are used as the auxiliary contact, and are applicable to a 20 V 5 mA load.
- The material name used is displayed on major plastic parts, improving environmental compliance.
- Main circuit inter-phase barrier is standard equipment, which improves safety.
MS-N Series Main Circuit B Contact Type AC Operation Type Electromagnetic Contactor Specifications
Rating / Performance
| Operation Method | Type Name | Main Contact Configuration | DC Rated Operating Current [A] | Open Thermal Current Ith[A] | Auxiliary Contact Configuration | |||
|---|---|---|---|---|---|---|---|---|
| DC Motor Load (DC2, DC4 Class) | DC Resistance Load (DC1 Class) | |||||||
| 100 V To 110 V | 200 V To 220 V | 100 V To 110 V | 200 V To 220 V | |||||
| AC Operation | B-N20 | 1a2b, 3b | 8 (15) | 1 (5) | 15 (20) | 5 (10) | 25 | 2a |
| B-N65 | 20 (50) | 3 (20) | 30 (65) | 10 (30) | 80 | 2a2b | ||
| B-N100 | 1a2b | 30 | 3 | 40 | 20 | 120 | ||
| DC Operation | BD-N20 | 1a2b | 8 | 1 | 15 | 5 | 25 | 2a |
| BD-N65 | 20 | 3 | 30 | 10 | 80 | 2a2b | ||
| BD-N100 | 30 | 3 | 40 | 20 | 120 | |||
- Note 1: DC rating is for when a 2-contact in-line is used. The value in ( ) is for when a 3-contact in-line is used.
- Note 2: Electrical durability 500,000 times, mechanical durability 5,000,000 times, switching frequency 1,200 times/hour.
- Note 3: When applying main circuit contact to AC, you can use the table below.
| Operation Method | Type Name | Main Contact Configuration | AC Rated Operating Current [A] | ||||
|---|---|---|---|---|---|---|---|
| b-Contact | a-Contact | ||||||
| Three-Phase | 2-Contact In-Line Single-Phase | 1-Contact Single-Phase | 1-Contact Single-Phase | ||||
| 200 V To 220 V | 380 V To 440 V | 200 V To 220 V | 200 V To 220 V | 200 V To 220 V | |||
| AC Operation | B-N20 | 1a2b, 3b | 18 | 13 | 18 | 18 | 18 |
| B-N65 | 50 | 35 | 50 | 50 | 50 | ||
| B-N100 | 1a2b | 80 | 55 | 80 | 80 | 80 | |
| DC Operation | BD-N20 | 1a2b | 18 | 13 | 18 | 18 | 18 |
| BD-N65 | 50 | 35 | 50 | 50 | 50 | ||
| BD-N100 | 80 | 55 | 80 | 80 | 80 | ||
| Closing, interruption role conditions / switching durability | Closing only, no break / 500,000 times | Closing, break 500,000 times | Closing only, no break / 500,000 times | Closing, break 500,000 times | |||
Note 1. Switching durability is the value when switching closing rated operating current × 6, or break rated operating current × 1, or when switching without interruption.
Characteristics
| Type Name | Input [VA] | Power Consumption [W] | Operating Voltage [V] | Coil Current [mA] | Operating Time [ms] | |||
|---|---|---|---|---|---|---|---|---|
| Instantaneous | Constant | Operation | Open | Coil ON → Main b OFF | Coil OFF → Main b ON | |||
| B-N20 | 90 | 15 | 4.0 | 125 to 155 | 75 to 110 | 60 | 7 to 15 | 13 to 25 |
| B-N65 | 210 | 23 | 2.8 | 110 to 140 | 50 to 100 | 85 | 12 to 28 | 45 to 105 |
| B-N100 | 270 | 24 | 2.9 | 110 to 140 | 60 to 130 | 100 | 20 to 25 | 110 to 130 |
| BD-N20 | - | 9 | 50 to 65 | 10 to 30 | 90 | 38 to 52 | 10 to 23 | |
| BD-N65 | - | 24 | 55 to 65 | 12 to 30 | 240 | 68 to 92 | 13 to 29 | |
| BD-N100 | - | 31 | 50 to 65 | 12 to 30 | 310 | 104 to 156 | 30 to 70 | |
- Note 1: The table above indicates the guideline values of characteristics when using a 200 V AC coil during AC operation (B-N□), and when using 100 V DC during DC operation (BD-N□).
- Note 2: Operating voltage is 20°C cold state, for both AC operation (at 60 Hz) and DC operation. For coils other than 200 V AC and 100 V DC, purchase approximately proportional to the voltage.
- Note 3: Input and power consumption are shown as average values. Stays nearly the same even when using coils other than 200 V AC or 100 V DC.
- Note 4: Coil current is the average value when applying 220 V 60 Hz during AC operation, and when applying 100 V DC. When using a coil other than the 200 V AC coil, divide the constant input by the coil voltage to find the coil. When using a coil other than the 100 V DC coil, divide the power consumption by the coil voltage.
- Note 5: Operating time is the value when applying 220 V 60 Hz during AC operation, and 100 V DC during DC operation. Stays nearly the same even when using coils other than 200 V AC or 100 V DC.