SSU-MR-104/C/R SPACE AGE

Product Overview

The Space Age Electronics SSU-MR-104/C/R is a 4-position (quad), multi-voltage SPDT control relay assembly pre-mounted inside a high-visibility, flame-retardant red ABS plastic enclosure. Engineered to handle high-density signal distribution, HVAC fan shutdowns, elevator recalls, and complex interlocking load controls, this unit contains a 4-module master board layout. Its physical "snap-apart" design allows technicians to mechanically break the board down into smaller clusters (such as single, dual, or triple configurations) if needed for custom spacing. Each independent relay contains localized, polarized DC inputs to safeguard circuitry, alongside an onboard red diagnostic LED that shines through the enclosure's transparent viewing windows to confirm coil status without opening the assembly.

Key Features

• 4-Position Master Relay Assembly: Houses four independent SPDT control relays inside a unified housing for clean, centralized multi-circuit management.
• Multi-Voltage Coil Inputs: Each individual relay module accepts terminal connections for 18 to 35VDC, 18 to 35VAC, 120VAC, or 230VAC.
• Continuous-Duty Limitations: Optimized for continuous-duty cycles when energized by 24VDC, 24VAC, or 120VAC inputs (not intended for continuous duty at 230VAC).
• Form C Contact Architecture: Features robust, single-pole double-throw resistive dry contacts rated for 10A at 120VAC/30VDC, 7A at 230VAC, and 7A at 28VDC.
• Modular Snap-Apart Fabrication: Offers a flexible construction setup where individual relay segments can be physically snapped apart from the master board.
• Red ABS 94V-0 Plastic Enclosure: Encased in a flame-retardant, high-impact red plastic housing featuring individual viewing ports to shield internal connections from debris while meeting visible regulatory codes.
• Polarized Terminal Protection: Built with fully polarized DC control inputs to eliminate risk of microcircuit failure from field cross-wiring errors.