The GE / Bently Nevada 3300/10-01-02-00-00 is a regulated DC power supply module for Bently Nevada 3300 series machinery monitoring systems. It converts AC input to programmable DC output, powering up to 12 monitors and 1–36 measurement channels in rotating machinery protection applications. The unit installs in position 1 (leftmost) of a 3300 rack as a double-wide module and includes integral line noise filtering, field-selectable input voltage, and an OK relay for system status annunciation.
## Technical Specifications
• **Input Voltage:** 115 Vac or 220 Vac, 50/60 Hz (field selectable via cable position and fuse change)
• **Output Voltage:** −24 Vdc (+0%, −2.5%) or −18 Vdc (+0%, −2%) for transducers, user-programmable
• **Fuse Ratings:** 1.5 A 125 V (110 V input); 0.75 A 250 V (220 V input) — slow blow type
• **Weight:** Approximately 1 kg (2 lbs)
• **Form Factor:** Double-wide 3300 rack module
## Key Features
• Built-in line noise filter for environments subject to power line disturbances
• User-selectable transducer voltage (−24 Vdc or −18 Vdc) with tolerance specifications
• Per-channel overload protection on individual monitor circuit boards
• SPDT (single-pole, double-throw) OK relay with optional epoxy or hermetic sealing
• Supports system configurations from 1 to 36 measurement channels across up to 12 monitors
## OK Relay Specifications
• **Contact Type:** SPDT relay
• **Sealing Options:** Epoxy or hermetically-sealed
• **Contact Ratings (resistive load):** 5 A at 28 Vdc; 5 A at 120 Vac, 50/60 Hz; 3 A at 220 Vac, 50/60 Hz
• **Agency Approval Rating:** 5 A at 28 Vdc; 5 A at 120 Vac, 50/60 Hz
## Typical Applications
Critical machinery condition monitoring in power generation plants, rotating equipment protection systems, and vibration/proximity monitoring networks requiring regulated, noise-filtered DC power and integrated system status relay control.
