Product Description
The Mitsubishi Electric SD-Q12 is a high-sensitivity DC interface magnetic contactor from the SD-Q Series, designed for compact, high-performance DC operation. It features a 24VDC coil that can be directly driven by transistor (PLC) outputs at 24VDC / 0.1A, eliminating the need for an intermediate interface relay. The SD-Q12 is rated for 20A open heat dissipation with a standard 1NO+1NC auxiliary contact configuration and 3 main poles, and is suitable for motor control, heater switching, dynamic brake circuits, and circuit interruption applications. The unit is IP20 rated and constructed from flame-retardant glass-fiber reinforced thermoplastic (UL94), with finger-safe terminal covers and direct thermal relay mounting without an adapter.
Technical Specifications
| Specification | Value |
|---|---|
| Brand | Mitsubishi Electric |
| Model / Part Number | SD-Q12 |
| Product Type | DC Interface Magnetic Contactor |
| Series | SD-Q Series |
| Coil Voltage | 24VDC |
| Coil Power Consumption | 1.3 W |
| Coil Drive Current | 0.1 A (transistor output compatible) |
| Number of Main Poles | 3 |
| Contact Configuration | 1NO + 1NC (1a1b standard) |
| Open Heat Dissipation Current | 20 A |
| Rated Current (AC-3, 200–220V) | 12 A |
| Rated Current (AC-3, 380–440V) | 9 A |
| Rated Current (AC-3, 500–550V) | 7 A |
| Rated Current (AC-1, Resistive Load) | 10 A (AC 200–440V) |
| Rated Capacity (3-phase, AC-3, 200–220V) | 2.5 kW |
| Rated Capacity (3-phase, AC-3, 380–440V) | 4 kW |
| Aux. Contact Rated Current (AC-15, 220V) | 3 A |
| Aux. Contact Rated Current (DC-13, 110V) | 0.6 A |
| DC Motor (DC-2/DC-4, 2-pole, ≤24V) | 12 A |
| DC Motor (DC-2/DC-4, 2-pole, ≤48V) | 6 A |
| DC Motor (DC-2/DC-4, 2-pole, ≤110V) | 1.2 A |
| Coil Voltage Tolerance Range | 85–120% of rated voltage |
| Mounting Type | 35mm DIN Rail (IEC/DIN standard) / Surface |
| Terminal Wiring | Screw-clamp |
| Coil Polarity | A1(+) / A2(−) polarized |
| Built-in Surge Absorber | Yes (standard) |
| Applicable Standards | JIS C8201-4-1, IEC 60947-4-1, EN60947-4-1, UL, CSA, CE, TÜV, GB, DIN/VDE, BS |
| Max Rated Voltage | 690 V |
| Twin Auxiliary Contact Min. Level | 5 VDC / 3 mA |
| Thermal Relay Mounting | Direct mount (no adapter required) |
| Operation Type | Non-Reversing, DC Operated |
| Flame Retardant Material | Yes (UL94 certified molded parts) |
We warranty all items for 30 days from date of purchase.
