ENMG / SENSOR INTERFACES
ESTB
Sensor distribution and PLC I/O terminal modules
Sensor connection modules with ECON mini-clamp inputs, supply distribution, status indication and selectable NPN/PNP mode.
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Specifications & selection.
- 4, 8, 12, 16 and 32-point selections.
- Screw or spring interfaces; MIL versions for 16 and 32 points.
- Power indication and per-channel green NPN / red PNP indication.
| Points / output | Screw model | Spring model | L × W × H, mm | Mass |
|---|---|---|---|---|
| 4 | ESTB-04S-3 | ESTB-04M-3 | 65 × 58 × 35 | 50 g |
| 8 | ESTB-08S-3 | ESTB-08M-3 | 80 × 58 × 35 | 70 g |
| 12 | ESTB-12S-3 | ESTB-12M-3 | 110 × 58 × 35 | 100 g |
| 16 | ESTB-16S-3 | ESTB-16M-3 | 110 × 58 × 35 | 100 g |
| 16 / MIL | ESTB-16S-3C | ESTB-16M-3C | 110 × 58 × 35 | 100 g |
| 32 / MIL | ESTB-32S-3C | ESTB-32M-3C | 130 × 86 × 60 | 180 g |
| Parameter | Specification |
|---|---|
| Rated voltage | 12–24 VDC |
| Rated current | 1 A; per-circuit/total basis not identified — confirm |
| Peak withstand current | 3 A; duration not specified |
| Initial contact resistance | ≤50 mΩ |
| Dielectric withstand | 500 VAC, 50/60 Hz, 1 minute |
| Insulation resistance | 100 MΩ at 500 VDC |
| Humidity | 45–85% RH |
| Ambient | −10 to +50 °C, no condensation or icing |
| Mounting | 35 mm DIN rail or surface screws |
| Interface | Specification |
|---|---|
| Cage screw | M2.5, 5.0 mm pitch; component rating 10 A / 300 V; 22–12 AWG; 0.4 N·m; strip 6–7 mm |
| Spring | 5.0 mm pitch; component rating 15 A / 300 V; 22–16 AWG (source also says 1.5 mm²); strip 8–9 mm |
| 16-point MIL | Nextron DC2-2.54-20PS |
| 32-point MIL | Nextron DC2-2.54-40PS |
| ECON-RE03-P | AWG24–26; insulation Ø0.8–1.0 mm in this chart |
| ECON-YW03-P | AWG24–26; insulation Ø1.0–1.4 mm in this chart |
| ECON-BL03-P | AWG20–22; insulation Ø1.4–1.6 mm in this chart |
Selection & installation notes
- The module is rated 12–24 VDC / 1 A in its technical chart. Higher terminal-component ratings do not increase the module rating. Confirm current distribution and peak duration.
- The naming diagram includes 6-point and 4-wire codes, but the supplied selection table lists the three-wire models above. Confirm availability before creating other combinations.
- Yellow and blue insulation ranges differ from the separate ECON page; confirm connector revision and actual cable dimensions.
- Verify PLC cable pinout, sensor supply and NPN/PNP selector before use. A matching connector alone does not establish PLC compatibility.
- The spring-terminal AWG and mm² entries are not equivalent; obtain the exact approved conductor range. Isolate supply before wiring.
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.
ESTB sensor terminal block — English manual, YZ25H21.
Model-specific English manual. Confirm the current connector revision and wiring diagram with your order.