ENMG / SURGE SUPPRESSION
RCM / FDM / TDM
Multi-channel RC, flyback and TVS protection modules
Six- or nine-circuit protection modules with RC snubbers, rectifier diodes or transient-voltage suppressors for control-cabinet applications.
Request a quote ↗TECHNICAL DATA / RCM / FDM / TDM
Specifications & selection.
- Three protection topologies, each offered in 6- and 9-circuit housings.
- Independent circuits; optional bridging links for common-potential wiring.
- Component customization available; source limits circuit counts to 06 / 09.
| Series | 6 circuits | 9 circuits | Standard component |
|---|---|---|---|
| RC snubber | RCM06-1201 | RCM09-1201 | 120 Ω / 2 W + 0.1 μF / 275 VAC X2 capacitor |
| Flyback diode | FDM06-03 | FDM09-03 | BY255GP, published 3 A / 1300 V component class |
| Bidirectional TVS | TDM06-36CA | TDM09-36CA | P6KE36CA, published 36 V breakdown class |
| Parameter | Specification |
|---|---|
| Between independent circuits | 1.5 kVAC, 1 minute |
| Case to terminals | ≥3000 VAC, 1 minute |
| Insulation resistance | 500 MΩ at 500 VDC |
| Terminals | Barrier M3.5 self-lifting screws; 8 mm pitch; 0.5 N·m |
| Lug width | Less than 6.7 mm |
| Vibration stated | 10–55 Hz, 0.35–0.5 mm double amplitude; ≥30 min per axis; source references IEC 60068-2-6 |
| Shock stated | 10 g, 11 ms half-sine; three times per axis; source references IEC 60068-2-27 |
| Operation / storage | −25 to +70 °C / −40 to +85 °C |
| Humidity | 5–95% RH, no condensation |
| Enclosure / flammability stated | IP20; UL94 V-0 for enclosure and terminal body |
| 6-circuit W × L × H | 51 × 70 × 30 mm; six terminal pairs |
| 9-circuit W × L × H | 75 × 70 × 30 mm; nine terminal pairs |
| Mass | Not provided |
| Code / example | Published component rating | Type |
|---|---|---|
| 03 / FDM06-03 | BY255GP, 3 A / 1300 V | Standard rectifier |
| 1N4007 / FDM06-1N4007 | 1 A / 1000 V | Standard rectifier |
| 1N5408 / FDM06-1N5408 | 3 A / 1000 V | Standard rectifier |
| FR157 / FDM06-FR157 | 1.5 A / 1000 V | Fast recovery |
| FR307 / FDM06-FR307 | 3 A / 1000 V | Fast recovery |
| UF4007 / FDM06-UF4007 | 1 A / 1000 V | Ultra-fast recovery |
| Code | Published VBR | Published VC, typical | Published IPP, typical |
|---|---|---|---|
| 6.8CA | 6.8 V | 11.2 V | 54 A |
| 15CA | 15 V | 24.4 V | 24.6 A |
| 24CA | 24 V | 38.9 V | 15.4 A |
| 36CA | 36 V | 58.1 V | 10.3 A |
| 58CA | 58 V | 93.6 V | 6.4 A |
| 170CA | 170 V | 275 V | 2.18 A |
| 250CA | 250 V | 403 V | 1.5 A |
| Item | Options |
|---|---|
| Other TVS examples | TDM06-SMBJ36CA (source says 400 W); TDM09-SMCJ36CA (1500 W); verify manufacturer and pulse waveform |
| Resistor options, 2–5 W | 22 / 47 / 68 / 100 / 120 / 150 / 220 / 330 / 470 / 680 Ω; 1 / 1.5 kΩ |
| Capacitor options | 0.022 / 0.033 / 0.047 / 0.068 / 0.1 / 0.15 / 0.22 / 0.33 / 0.47 μF; confirm voltage and safety class |
| Order suffixes | RCM: resistor + capacitor code; FDM: diode code; TDM: P6KE shorthand or full component code |
| Bridging accessories | Optional, ordered separately; match 8 mm terminal pitch and total current |
Selection & installation notes
- Component voltage/current/pulse values are not a verified module operating rating. Confirm the exact component manufacturer, tolerances, waveform, duty cycle and thermal limits.
- For a TVS, verify stand-off voltage against maximum continuous circuit voltage and clamping voltage against equipment withstand. Do not use the source 170CA application example as approval for direct 220 VAC connection.
- The source RC time-constant examples do not consistently match τ = R × C: 120 Ω × 0.1 μF equals 12 μs. Obtain application-specific RC values instead of relying on those example time bands.
- RCM is connected in parallel with the protected AC contacts. Confirm capacitor voltage, leakage and resistor dissipation for the actual circuit.
- FDM diodes require the correct reverse-parallel polarity across DC inductive loads. Verify current, stored energy and release-time requirements.
- Standards and flammability entries are source claims, not independently verified certification. Request supporting documents when needed.
- Confirm wire cross-section and mounting details, which are not specified. Isolate supplies and discharge stored energy before wiring or service.
Based on the official Chinese product page and selection charts ↗. Checked 2026-09-15. Confirm the current specification for the exact model when ordering.
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ENMG electrical accessories — English product-family brochure.
This is a product-family brochure. Request a model-specific datasheet and installation drawing with your inquiry.