Functional Devices RIBMN24S-4T Four Pilot Relays 15A SPST Override 24V Track Mount

The Functional Devices RIBMN24S-4T is a four-relay, track-mount pilot relay assembly featuring four independent SPST (Single Pole Single Throw) continuous duty coils rated at 15 Amps, each with a 24 Vac/dc coil and manual override switch. Designed for building automation, HVAC control, and energy management applications, this unit mounts directly to a standard DIN rail using the included MT212-6 mounting track (2.75" x 6.00").

Key Features:

• Four (4) SPST continuous duty relay coils on a single track assembly
• 15 Amp general use contact rating at 125 Vac
• 10 Amp general use contact rating at 277 Vac
• 10 Amp resistive rating at 30 Vdc (N/O) and 7 Amp resistive at 30 Vdc (N/C)
• Motor ratings: 1/2 HP @ 125 Vac, 1 HP @ 250 Vac, 1/4 HP @ 277 Vac
• C300 Pilot Duty rated
• 24 Vac/dc coil voltage — 50/60 Hz compatible
• Manual override switch on each relay (selectable via jumper: N/O or N/C)
• LED status indicator — LED on indicates relay activated
• Fast 6ms operate time
• Minimum 10 million cycle mechanical life expectancy
• Operating temperature: -30°F to 140°F (-34°C to 60°C)
• Operating humidity: 5% to 95% non-condensing
• Dimensions: 6.000" x 2.750" x 1.500"
• MT212-6 mounting track included
• Made in the USA

Certifications & Approvals:

• UL Listed (UL916, UL864)
• C-UL Listed
• California State Fire Marshal approved
• CE and RoHS compliant

The RIBMN24S-4T is part of Functional Devices' industry-leading RIB® (Relay in a Box) product line, engineered for reliable performance in commercial building controls and energy management systems. Each relay's override switch allows selectable normally open or normally closed operation by cutting the appropriate jumper, providing installation flexibility for a wide range of control panel configurations.