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Midnite Solar MNSSR-600S-SS Specifications

Operating Voltage Range50-600 VDC
Maximum Input Voltage600 VDC
Maximum MPPT Input550 VDC
Continuous Operating Current12 A
Operating Temperature-40 °C to 85 °C
Enclosure RatingNEMA 4X
ConnectorsStäubli MC4
Weight0.64 kg (23 oz)
Dimensions6 7/16" × 3 7/8" × 6 3/16"
CertificationsUL3741, UL1741
Warranty Period25 Years
Package Quantity12 Units per Case
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Midnite Solar MNSSR-600S-SS Rapid Shut Down Device

SKU MIDNITE-RSD-MNSSR-600S-12PK
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Midnite Solar MNSSR-600S-SS-12PK Rapid Shutdown Device (12-Unit Case)

The Midnite Solar MNSSR-600S-SS is a string-level SunSpec rapid shutdown receiver designed to meet NEC rapid shutdown safety requirements without the need for additional communication or grounding wires. This UL3741 certified device operates seamlessly with all SunSpec certified transmitters, whether integrated into inverters or installed as standalone units, providing a reliable safety solution for solar installations.

Sold in convenient 12-unit cases, the MNSSR-600S-SS features a robust NEMA 4X enclosure rated for outdoor use in extreme conditions from -40°C to 85°C. With a maximum operating voltage of 600VDC and continuous current capacity of 12A, this device provides essential safety functionality while maintaining system performance across a wide range of installation environments.

MNSSR-600S-SS RSD Features

  • Universal Transmitter Support: Works with all SunSpec certified transmitters including Midnite Solar's MNSST-SINGLE, MNSST-DUAL, and MNSST-NAKED models for flexible system integration.
  • Wireless Communication: Meets rapid shutdown requirements without dedicated communication or grounding wires, simplifying installation and reducing labor costs.
  • Rugged Construction: NEMA 4X Enclosure - Weather-resistant housing with Stäubli MC4 connectors provides reliable outdoor performance in harsh environmental conditions.
  • Extreme Temperature Rating: Functions reliably from -40°C to 85°C with continuous 12A current capacity, suitable for installations in diverse climates.
  • UL3741 and UL1741 Listed: Meets stringent safety standards and is compatible with Iron Ridge racking systems and multiple inverter brands for code compliance.

Midnite Solar MNSSR-600S-SS RSD Applications

The MNSSR-600S-SS rapid shutdown receivers are compatible with a wide range of inverter systems for both residential and commercial installations. For residential applications, these devices integrate seamlessly with Midnite AIO, Sol Ark, and Solis inverters, providing reliable safety compliance for home solar systems. In commercial settings, the receivers work effectively with SMA Tri Power inverters for sloped roof installations and SMA Core inverters for flat roof applications.

Midnite Solar RSD MNSSR-600S-SS Device Diagram
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Midnite Solar RSD MNSSR-600S-SS Review

The MNSSR-600S-SS represents Midnite Solar's commitment to practical safety solutions in solar installations. The device's wireless communication capability eliminates the complexity and cost associated with running dedicated communication wiring throughout solar arrays. The 25-year warranty period aligns with typical solar system lifespans, providing long-term reliability assurance for installers and system owners.

These rapid shutdown receivers excel in applications where code compliance must be balanced with installation efficiency. The robust NEMA 4X enclosure and wide temperature range make them suitable for diverse installation environments, while the SunSpec compatibility ensures future system flexibility. When combined with appropriate Midnite Solar transmitters, the MNSSR-600S-SS provides a comprehensive rapid shutdown solution that meets current safety requirements while maintaining system performance.

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