MD7 Series Current Monitoring Relay, Sieland
QuiSure Over/Undercurrent Relay, Monitors 0.15-15A AC/DC. Manual/auto reset (M/NM). 24-240V AC/DC operation. Adjustable threshold (10-100%) with 0.1-30s delay. 2 C/O contacts (±0.5% accuracy). Withstands -40℃~60℃. DIN rail mount (22.5x92x100mm).
| Parameter | Specification |
| Product Name | Single-phase Under/Overcurrent Relay |
| 3-Channel Current Monitoring | 11-C: 0.15A - 1.5A 12-C: 0.5A - 5A 13-C: 1.5A - 15A (AC/DC) |
| Reset Mode | M: With memory (manual reset) NM: Without memory (automatic reset) |
| Delay Mode | Off-Delay |
| Application Examples | Overcurrent Monitoring & Protection, Undercurrent Monitoring & Protection |
| Operating Voltage | 24-240V AC/DC |
| Current Threshold Setting | 10-100% (for 11/12/13-C) |
| Return Factor Setting | 5-50% (of the current threshold) |
| Delay Setting | 0.1s - 30s |
| Relay Output | 2 c/o changeover contacts |
| Repeat Accuracy | ±0.5% |
| Temperature Drift Error | ±0.05% / °C |
| Voltage Drift Error | ±1% / V |
| Maximum Switching Current | 88A / 250V AC |
| Electrical Life | 10⁵ switching cycles |
| Mechanical Life | 10⁷ switching cycles |
| Protection Level | IP50 / IP20 |
| Operating Temperature | -40°C ~ 60°C |
| Storage Temperature | -40°C ~ 85°C |
| Dimensions | 22.5 × 92 × 100mm |
| Mounting Method | 35mm DIN standard rail |
| Product Standards | IEC 60255-1, GB 14048.5 |
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