Product Parameters
- Model Number: 59604
- Series: SEPAM Series 10 (S10MD)
- Protection Type: Feeder and Transformer Protection
- Input Current: 1A / 5A (Selectable via CT)
- Control Voltage: 24V – 250V DC / 110V – 240V AC
- Logic Configuration: XXX JXX XNT (Specific Factory Configuration)
- Output Contacts: 3 to 7 Programmable Output Relays
- Communication Protocol: Modbus RTU / IEC 60870-5-103 support

Product Description
The Schneider Electric SEPAM 59604, belonging to the Series 10 S10MD range, is a high-reliability digital protection relay designed for the monitoring and protection of medium-voltage distribution systems. It provides comprehensive phase and earth-fault overcurrent protection, ensuring that downstream equipment is isolated during electrical faults. The “MD” designation signifies a model equipped with an integrated display and advanced monitoring features, allowing operators to view real-time current measurements and trip history directly on the device interface.
Application Fields
This protection relay is primarily utilized in industrial electrical substations, commercial building power distribution boards, and small-to-medium utility networks. It is specifically applied for the protection of outgoing feeders, secondary distribution transformers, and motor protection where advanced time-current characteristic curves are required to ensure system coordination and minimize downtime.
Product Specifications
- Weight: 1.45 kg
- Dimensions: 139 mm x 179 mm x 123 mm
- Origin: France
Operational Precautions
- Before commissioning, ensure the Current Transformer (CT) secondary ratios are correctly matched within the relay settings to prevent incorrect tripping or failure to trip.
- Do not disconnect the CT secondary circuit while the primary side is energized; always short-circuit the CT terminals before removing the relay from the case.
- Verify that the auxiliary power supply voltage falls within the specified range (JXX/XNT specific) to prevent internal power supply damage.
- Regularly download the fault record logs to analyze system health and identify intermittent electrical disturbances before they lead to permanent hardware failure.
Recommended Similar Product Models
| Model Number | Series | Primary Function | Features |
|---|---|---|---|
| 59602 | SEPAM Series 10 | Earth Fault Protection | Base Model / S10N |
| 59606 | SEPAM Series 10 | Transformer Protection | Advanced Logic / S10B |
| S20 | SEPAM Series 20 | Substation Protection | Backlit LCD / Modular |
| S40 | SEPAM Series 40 | Advanced Feeder Control | Logic Equations / Mimic |
| T87 | SEPAM Series 80 | Differential Protection | High-End / Fiber Optic |
