ENMG / POWER DISTRIBUTION TERMINALS
ECTB
Multi-group common-potential distribution terminals
Spring-terminal DIN modules for organizing multiple groups of electrically common connection points inside control cabinets.
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Specifications & selection.
- 24, 42, 48 and 84-point selections.
- 5 mm terminal pitch with spring connections.
- 35 mm DIN mounting; L and X base sizes.
| Model | Points | H × W × L (mm) | Mass |
|---|---|---|---|
| ECTB-24M-L | 24 | 39 × 40 × 87 | 75 g |
| ECTB-48M-L | 48 | 39 × 70 × 87 | 125 g |
| ECTB-42M-X | 42 | 39 × 40 × 124 | 110 g |
| ECTB-84M-X | 84 | 39 × 70 × 124 | 185 g |
| Parameter | Value |
|---|---|
| Rated voltage | 300 V |
| Current limit | Maximum 10 A per terminal hole |
| Dielectric withstand | 1000 VAC, 50/60 Hz, 1 minute |
| Insulation resistance | 100 MΩ at 500 VDC |
| Wire / strip | 22–16 AWG (1.5 mm² shown in source) / 8–9 mm |
| Terminal pitch | 5.0 mm |
| Ambient / humidity | −10 to +50 °C / 45–85% RH; no condensation or icing |
| Base designations | L: 72 mm board; X: 107 mm board |
Selection & installation notes
- Identify internal common-potential groups from the exact wiring diagram before connection. Never combine different supply potentials in one group.
- 10 A per hole does not establish total group, bus or module current. Confirm shared-path limits and conductor/temperature derating.
- The 72/107 mm board designations are not the overall enclosure dimensions. Use the original H × W × L orientation and production drawing for layout.
- Verify conductor type and ferrule requirements; isolate power, strip to the specified length and check terminal retention.
Based on the official Chinese product page and selection charts ↗. Checked 2026-09-15. Confirm the current specification for the exact model when ordering.
TECHNICAL RESOURCES
Plan your integration.
ENMG wiring terminals — English product-family brochure.
This is a product-family brochure. Request a model-specific datasheet and installation drawing with your inquiry.