Fortress Power APSmart Module Level Rapid Shutdown for 2 solar panels max current 20A MC4 with brackets compatible with Envy inverters - AP Smart Duo
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- SKU
- PES-SPS-SIV-0667
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APSmart RSD-D-20 (Duo) — SunSpec-PLC Module-Level Rapid Shutdown
APSmart RSD-D-20 is a dual-input (2-module) rapid shutdown receiver that operates on the SunSpec PLC signal. If it does not receive a heartbeat from the APsmart Transmitter (or any inverter’s integrated SunSpec transmitter), it immediately brings the array to safe voltage — NEC 2017/2020 (690.12) compliant. [datasheet]
Key features
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Duo channel: 2 PV modules per unit (simplifies wiring & cost) -
20A per channel continuous; suitable for modern high-Isc modules -
SunSpec PLC comms, APsmart Transmitter compatible; many inverters (e.g., Fortress Envy) have a built-in transmitter -
IP68 / NEMA 6P potting & enclosure; −40 °C to +75 °C operation - MC4 (Stäubli PV-KBT4/KST4) connectors; 0.5 m input / 2.2 m output leads
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Max system voltage: 1000 V (TÜV) / 1500 V (UL)
Specifications
| Electrical — Input (per channel) | |
|---|---|
| Operating voltage | 8–65 V (max input 80 V) |
| Max continuous current |
20 A (Isc 25 A) |
| Electrical — Output | |
| Operating voltage | 16–130 V (max 160 V) |
| Max continuous current | 20 A |
| Max system voltage | 1000 V (TÜV) / 1500 V (UL) |
| Series fuse rating | 30 A |
| Mechanical | |
| Body size (W × H × D) | 5.5″ × 2.0″ × 0.8″ (excluding cables) |
| Cables | Input 0.5 m · Output 2.2 m; TUV 4 mm² / UL 12 AWG |
| Connectors | Stäubli MC4 PV-KBT4 & KST4 |
| Enclosure / rating | Fully potted; IP68 / NEMA 6P; over-temperature protection |
| Compliance | |
| Safety | NEC 2017/2020 (690.12), UL1741, CSA C22.2 No. 330-17, IEC/EN 62109-1 |
| EMC | FCC Part 15, ICES-003 |
| Communication | Power Line Communication (SunSpec) |
| Ordering | |
| Model | RSD-D-20 (ordering code 446101) |
Specs have been verified from the official APSmart datasheet; note in manufacturer docs that Envy inverter has a built-in APsmart transmitter. [datasheet / Envy]
| SKU | PES-SPS-SIV-0667 |
|---|---|
| Manufacturer | Fortress Power |
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