Description
SKU : HEY-M3200GAH (MID-MNSR-1000) | HEY-M3231GCZ | HEY-M8437GBT-SM | HEY-M3234GBS-SM
Mfg. SKU: M3200GAH (MID-MNSR-1000) | M3231GCZ | M3234GBS-SM | M8437GBT-SM
Heyco®-Tite Solar Masthead Cordgrips – Skinned-Over Break-Thru (IP68 Rated)
Part Numbers: M3200GAH (MID-MNSR-1000) | M3231GCZ | M3234GBS-SM | M8437GBT-SM
CSA & UL Certified • Liquid-Tight • Built for Solar Installations
The Heyco®-Tite Skinned-Over Break-Thru Solar Masthead Cordgrip provides IP68-rated strain relief and sealing for photovoltaic wiring in combiner boxes, inverter housings, and junction enclosures.
Each gland offers long-term protection against moisture, dust, and mechanical stress, keeping your system compliant and reliable under harsh Canadian weather conditions.
Made from UV-stabilized Nylon 6/6 with a TPE sealing gland, Heyco cordgrips are trusted across the solar industry for their flexibility, chemical resistance, and easy installation. The skinned-over break-thru design allows unused holes to remain sealed while maintaining a watertight fit for active conductors.
Key Features
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IP68-rated protection: Fully dust- and water-tight for outdoor, rooftop, and industrial solar environments.
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Multiple configuration options:
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M3200GAH (alias MID-MNSR-1000): 2-hole gland supporting two 6 mm PV conductors — a direct replacement for the MidNite MNSR-1000 strain relief.
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M3231GCZ: 1-hole gland for a single PV cable or sensor lead.
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M3234GBS-SM: 3-hole gland for mixed conductor sizes (two standard + one larger).
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M8437GBT-SM: 5-hole gland for multiple PV string circuits or combined cable bundles.
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Dual-diameter flexibility: Each model accommodates different conductor sizes in one fitting.
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Integral sealing ring: Ensures consistent compression and a reliable leak-free seal.
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Rugged construction: Nylon 6/6 body with TPE gland resists UV, salt, oil, and common solvents.
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Certified for North America: UL E51579 / CSA 93876 compliant.
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Temperature range: Static –40 °C to +112 °C | Dynamic –20 °C to +100 °C.
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Metal locknut included for quick, secure installation.
Technical Specifications
| Parameter | M3200GAH (MID-MNSR-1000) | M3231GCZ | M3234GBS-SM | M8437GBT-SM |
|---|---|---|---|---|
| Thread Size (NPT) | 1/2 in (0.875 in Ø) | 1/2 in (0.875 in Ø) | 3/4 in (1.109 in Ø) | 1 in (1.326 in Ø) |
| Number of Holes | 2 holes (6 mm each) | 1 hole | 3 holes (dual diameter) | 5 holes (dual diameter) |
| Conductor Range | Two 6 mm PV wires | One PV cable | Two small + one large | Mixed diameters |
| Overall Length | 42.7 mm (1.68 in) | 43.2 mm (1.70 in) | 50.8 mm (2.00 in) | 61.2 mm (2.41 in) |
| Thread Length | 11.2 mm (0.44 in) | 15.5 mm (0.61 in) | 15.7 mm (0.62 in) | 19.3 mm (0.76 in) |
| Mounting Hole Thickness | 6.4 mm (0.25 in) | 5.3 mm (0.21 in) | 6.4 mm (0.25 in) | 7.6 mm (0.30 in) |
| Wrench Flat Size | 27.0 mm (1.06 in) | 24.9 mm (0.98 in) | 33.0 mm (1.30 in) | 43.9 mm (1.73 in) |
| Material | Nylon 6/6 + TPE gland | Same | Same | Same |
| IP Rating | IP68 | IP68 | IP68 | IP68 |
| Certifications | UL E51579 / CSA 93876 | Same | Same | Same |
| Locknut Included | Yes (Metal) | No | Yes (Metal) | Yes (Metal) |