ENMG / RELAYS & INTERFACES
SDR
DIN rail solid-state relays
28 mm-wide solid-state relays with integrated heatsinks, offered in 15 A, 25 A and 40 A classes for AC or DC switching.
Request a quote ↗TECHNICAL DATA / SDR
Specifications & selection.
- 35 mm DIN rail mounting; enclosure height increases with current class.
- AC TRIAC versions support zero-cross or random turn-on; DC versions use MOSFET outputs.
- This SDR range is a solid-state relay family, distinct from SDR power supplies.
| Current class | AC 24–280 V, zero-cross | AC 48–480 V, zero-cross | DC MOSFET, 60 V class |
|---|---|---|---|
| 15 A | SDR15A2032 | SDR15A3032 | SDR15D6132 |
| 25 A | SDR25A2032 | SDR25A3032 | SDR25D6132 |
| 40 A | SDR40A2032 | SDR40A3032 | SDR40D6132 |
| Option | Published specification |
|---|---|
| Suffix 32 | 5–24 VDC; current-regulated input; <20 mA |
| Suffix 05 / 12 / 24 | 5 / 12 / 24 VDC respectively; 30 ±5 mA |
| Suffix 22 | 90–280 VAC, 50/60 Hz |
| Model table above | All models listed above use 5–24 VDC input |
| Parameter | Specification |
|---|---|
| Voltage code 2 / 3 | 24–280 VAC / 48–480 VAC |
| Frequency | 47–63 Hz |
| Peak reverse voltage: code 2 / 3 | 600 / 800 V |
| On-state voltage drop | 1.5 V at rated load |
| Off-state leakage: code 2 / 3 | 5 mA at 220 VAC / 10 mA at 380 VAC |
| Minimum load current | 20 mA |
| Operate / release time | ≤0.5 mains cycle + 1 ms; random type ≤1 ms |
| Parameter | Specification |
|---|---|
| Voltage class | 60 V is identified as VDSS breakdown voltage in the source; confirm a safe operating range |
| Off-state leakage | ≤3 mA |
| Minimum load current | 2 mA |
| MOSFET on-resistance | Not specified |
| Current class | Non-repetitive surge (10 ms) | W × L × H (mm) | Approx. mass |
|---|---|---|---|
| 15 A | 120 A | 28 × 86 × 60 | 190 g |
| 25 A | 250 A | 28 × 86 × 75 | 230 g |
| 40 A | 300 A | 28 × 86 × 93 | 300 g |
| Parameter | Specification |
|---|---|
| Input-to-output isolation | 5,000 Vrms |
| Input/output to baseplate | 2,500 Vrms, 50/60 Hz, 1 min |
| Insulation resistance | ≥100 MΩ at 500 VDC |
| Encapsulation | Epoxy |
| Ambient temperature | −45 to +80°C; thermal derating required |
| Humidity | ≤90% RH, no condensation or ice |
| Reference test temperature | 25°C unless otherwise stated |
Selection & installation notes
- Rated current depends on cooling and ambient conditions. Provide effective heatsinking above 5 A and apply the exact model’s derating curve, especially from 40°C upward.
- 60 V VDSS is a breakdown limit, not a recommended DC working voltage. Confirm the operating-voltage limit and transient headroom before selection.
- The source input-threshold wording around 4 V and 1 V is ambiguous. Request a confirmed input transfer specification before control-circuit design.
- Select a semiconductor fast fuse and suitable surge suppression for the load. Allow for inductive inrush and use the appropriate trigger type.
- Off-state leakage remains present. Isolate the upstream supply before wiring or servicing.
- Body dimensions exclude terminal and rail projections. Confirm clearances using the exact model drawing.
- The source’s DC naming explanation and example suffixes differ; order using a confirmed full part number.
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 relays — English product-family brochure.
This is a product-family brochure. Request a model-specific datasheet and installation drawing with your inquiry.