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उत्पाद विवरण:
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| भाग संख्या: | J7ARN-E9-24VDC | ब्रांड: | ओमरोन |
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| उत्पाद का प्रकार: | उलट कॉन्टैक्टर | शृंखला: | J7AN |
| मॉडल नंबर: | 3-ध्रुव | संपर्क रेटिंग वर्तमान: | 15ए |
| स्थिति: | नया / इस्तेमाल किया | गारंटी: | एक वर्ष |
| प्रमुखता देना: | Omron J7ARN reversible contactor,24VDC automation spare parts,Genuine Omron contactor with warranty |
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The Omron J7ARN-E9-24VDC is a professional-grade reversible magnetic contactor designed for controlling three-phase motors in both forward and reverse directions. This integrated unit combines two 9A three-pole contactors with a mechanical interlock system, ensuring safe and reliable motor reversal operations from a 24V DC control circuit.
| Part Number | J7ARN-E9-24VDC |
| Type | Reversible (Forward/Reverse) Magnetic Contactor |
| Rated Current (AC3) | 9 A |
| Motor Rating | 4 kW at 380-400V |
| Coil Voltage | 24V DC |
| Poles | 3-Pole |
| Interlock | Integrated Mechanical Interlock |
| Configuration | Dual 3-pole (forward + reverse) |
| Utilisation Category | AC3 (motor load) |
| Standard | IEC 60947-4-1 |
| Coil Supply | DC |
The J7ARN-E9-24VDC enables motor direction reversal by swapping phase connections through its dual contactor design. The integrated mechanical interlock physically prevents both forward and reverse contactors from closing simultaneously, eliminating the risk of phase-to-phase short circuits.
The 9A AC3 rating specifically addresses the demanding requirements of motor starting and stopping, including handling the high inrush currents (5-7 times full-load current) typical of squirrel-cage induction motors. This ensures reliable performance for motors up to 4kW at 400V three-phase.
Designed for seamless integration with modern control systems, the 24V DC coil interfaces directly with PLC output cards from major manufacturers including Siemens, Mitsubishi, Omron, Allen-Bradley, and Schneider without requiring interposing relays.
The mechanical interlock provides a hardware safety layer that functions independently of control signals. It physically prevents both contactors from closing simultaneously, protecting against PLC failures, wiring errors, or software faults that could cause dangerous phase-to-phase short circuits.
Yes. A minimum dead-time of 15ms is recommended between forward-off and reverse-on commands to ensure proper contact opening and arc extinction. In practice, PLC programs should implement 50-100ms delays to account for magnetic decay and mechanical response times.
The J7ARN-E9-24VDC is rated for three-phase motors up to 4kW at 380-400V. For 230V systems, the maximum motor rating is approximately 2.2kW due to the same 9A AC3 current limitation.
Yes. For complete motor protection, a thermal overload relay should be installed in series with the contactor coil control circuit. The relay should be sized according to the motor's nameplate full-load current, not the contactor's 9A rating.
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