SSU-MR-204/C SPACE AGE

Product Overview

The Space Age Electronics SSU-MR-204/C is a quad (4-position), multi-voltage DPDT control relay assembly housed within a protective gray metal cabinet. Designed to support high-density routing for HVAC fan controls, fire alarm networks, automated dampers, and energy management setups, this unit features a 4-position master circuit assembly. Its structural snap-apart substrate lets installers physically break down the card into smaller layout groups like single, dual, or triple relay blocks to fit custom layout designs. Each independent relay on the board includes localized, polarized DC inputs to guard internal microcircuitry alongside a dedicated red diagnostic LED to verify active coil power without manual meter testing.

Key Features

• 4-Position Master Relay Assembly: Consolidates four completely independent DPDT control relays within a single housing for clean multi-circuit routing.
• Universal Multi-Voltage Inputs: Each relay segment incorporates field terminals designed to accept 24VDC, 24VAC, 120VAC, or 230VAC control signals.
• Continuous-Duty Operational Limits: Optimized for continuous-duty operation when driven by 24VDC, 24VAC, or 120VAC inputs (not intended for continuous use at 230VAC).
• High-Density DPDT Contact Sets: Outfitted with robust dual-pole double-throw dry Form C contacts rated for 10A at 120VAC or 7A at 230VAC/28VDC.
• Modular Snap-Apart Board: Circuit substrate features built-in score lines to let field technicians snap individual relay sections off the master matrix.
• Industrial Steel Gray Enclosure: Encased inside a dust-resistant, 18-gauge cold-rolled steel backbox featuring transparent ABS viewing windows over the diagnostics.
• Polarized Circuit Protection: Employs fully polarized DC control inputs to safeguard components against damage from accidental reverse field wiring.