Functional Devices RIB01P30-S-NC : Enclosed Power Relay, 30 Amp Contact Rating, Relay Contact Type: DPST-N/C + Coil Side Override, 120 Vac Coil Voltage, NEMA 1 Housing

• Relays & Contact Type: One (1) DPST Continuous Duty Coil – Both Poles Normally Closed
• Expected Relay Life: 10 million cycles minimum mechanical
• Operating Temperature: -30 to 140° F
• Humidity Range: 5 to 95% (noncondensing)
• Operate Time: 18ms
• Relay Status: LED On = Activated
• Dimensions: 4.00" x 4.00" x 1.81" with 0.50" NPT Nipple
• Wires: 16", 600V Rated
• Approvals: UL Listed, UL916, UL864, C-UL, California State Fire Marshal, CE, RoHS
• Housing Rating: Accepted for Use in Plenum, NEMA 1
• Gold Flash: Yes
• Override Switch: Coil Side

• 30 Amp Resistive @ 300 Vac
• 25 Amp Resistive @ 28 Vdc
• 20 Amp Ballast @ 277–480 Vac (Not rated for Electronic Ballast)
• 15 Amp Resistive @ 600 Vac
• 770 VA Pilot Duty @ 120 Vac
• 1,158 VA Pilot Duty @ 240 Vac
• 1,110 VA Pilot Duty @ 277 Vac
• 1,640 VA Pilot Duty @ 480 Vac
• Heavy Pilot Duty @ 600 Vac
• 3 HP @ 480–600 Vac
• 2 HP @ 240–277 Vac
• 1 HP @ 120 Vac

Coil Current: 105 mA @ 120 Vac

Coil Voltage Input: 120 Vac; 50–60 Hz (Drop Out = 35 Vac, Pull In = 85 Vac)

Control Wiring: Wht/Blk = 120 Vac Continuous, Wht/Red = 120 Vac Control, Wht/Yel = Neutral

• What does DPST-N/C mean in this relay?
  Double Pole Single Throw – Normally Closed means both sets of contacts are closed when the coil is not energized. The circuit opens only when the coil is powered.
• Why choose the -S-NC version over other models?
  The RIB01P30-S-NC includes both normally closed contacts and a coil-side override switch for added manual control, making it ideal for fail-safe or emergency-off circuits.
• Can it be used with electronic loads?
  No. This relay is not rated for electronic ballasts or LED drivers. Use a relay specifically rated for those applications.

• Tip: Use the coil-side override switch during startup or troubleshooting for fast control testing.
• Tip: Clearly mark control wiring to avoid confusion with standard N/O models during installation.
• Mistake to Avoid: Don’t use this model with capacitive or high-inrush loads such as LED drivers or electronic ballasts.
• Mistake to Avoid: Ensure wiring reflects N/C contact behavior — incorrect logic can result in system faults or equipment staying on during power loss.