133300-01 Bently Nevada 3500/15 Low Voltage DC Power Input Module

Bently Nevada 3500/15 Low Voltage DC Power Input Module

The Bently Nevada 133300-01 (associated with the 3500/15 series) is a robust low voltage DC power input module (PIM) engineered to supply reliable 20 to 30 Vdc operating power to 3500 machinery protection system racks. Working in tandem with the low voltage DC power supply, this module handles full rack current draws up to 11.0 A while providing dedicated over-voltage and under-voltage protective fusing.

• Series Architecture: 3500/15 System Platform
• Product Component: 133300-01 Low Voltage DC Power Input Module & Supply Unit
• Input Voltage Standard: 20 to 30 Vdc nominal operating range
• Slot Configuration: Half-height rear PIM slot paired with left-side front power supply slots

Technical Specifications

Selection Comparison & Technical Guidance

When upgrading or replacing power supplies within a 3500 monitoring rack, verifying your source input voltage type is critical to prevent hardware mismatch.

• Selection Advice: Ensure your cabinet auxiliary power bus delivers a stable 20 to 30 Vdc before selecting the 133300-01 low voltage DC module. If your facility utilizes standard AC mains (115/230Vac), select the corresponding AC high-voltage power input module instead to prevent severe equipment damage.
• Redundancy Setup: The 3500/15 rack design accommodates dual half-height power supply slots on the left side, allowing you to install two 133300-01 modules simultaneously for redundant, high-availability power architecture.

Installation Guide & Mounting Best Practices

• Insert the rear power input module (133300-01) securely into the designated half-height slot directly behind the matching front power supply module.
• Connect incoming 20–30 Vdc power lines to the rear screw terminals, verifying correct polarity before energizing.
• Maintain minimum clearance around the rack sides to ensure optimal convection cooling across the operating temperature range of -30°C to +65°C.
• Inspect the front panel Supply OK LED indicator immediately upon power-up to confirm proper internal regulation.

Typical Equipment & Application Scenarios

• 3500 Machinery Protection Racks: Supplying stable DC power to critical vibration monitoring cards in industrial plants.
• Emergency Shutdown Systems (ESD): Powering safety-instrumented rack configurations backed by uninterruptible 24Vdc battery banks.
• Offshore & Marine Skids: Operating reliably under strict DNV GL maritime vibration and electrical standards.

Diagnostic Capabilities & Maintenance

• Front panel Supply OK LED provides instant visual verification of internal DC rail health during routine patrols.
• Built-in over-voltage fuse protection safely isolates faults, preventing secondary damage to expensive monitor cards installed in the rack.
• Wide operating temperature tolerance (-30°C to +65°C) prevents thermal shutdown in unconditioned field junction boxes.

Packaging, Warranty & Shipping

• Package List: 1 x Bently Nevada 133300-01 / 3500/15 power input module unit.
• Warranty: Fully backed by a comprehensive 12-month quality assurance warranty.
• Logistics: Rapid 24-48 hour dispatch via Fedex, UPS, and DHL.

Buying Guide & Selection Tips

• Confirm whether your rack requires single or dual redundant power configuration to determine if you need to order one or two 133300-01 units.
• Check that your cabinet power supply wiring gauge (typically 14-16 AWG) can sustain the 11.0 A maximum full rack current draw without excessive voltage drop.

Frequently Asked Questions

Question
What happens to the 133300-01 module if an over-voltage condition occurs on the incoming DC line?

Answer
An over-voltage condition causes the internal safety fuse on the PIM to open, successfully isolating the fault and protecting downstream rack components.

Question
Does this power input module require any minimum rack load to operate correctly?

Answer
No, there is no minimum rack load requirement for the low voltage DC power supply option.

Question
What hazardous area certifications does this power module carry?

Answer
It holds cNRTLus (Class I, Zone 2 / Div 2) and ATEX/IECEx (Ex nA nC ic / Ex ec nC ic IIC T4 Gc) approvals for explosive atmospheres.

Question
Can two power supply modules be installed in the same 3500 rack for redundancy?

Answer
Yes, the two half-height slots on the left side of the rack can hold power supplies simultaneously to provide fully redundant power operation.

Question
What is the acceptable input voltage span for this low voltage DC variant?

Answer
The input voltage must be maintained within the specified 20 to 30 Vdc range.

Global PLC Spare HUB's Insight

Global PLC Spare HUB's Insight highlights that intermittent rack reboots in 3500 systems are frequently traced to voltage sag on long DC feeder lines rather than failure of the 133300-01 module itself. When heavy plant loads turn on simultaneously, cable resistance can cause input voltage at the PIM terminals to dip below the 20 Vdc lower threshold. Instrument engineers should verify that wire gauge sizing compensates for total run length, ensuring a rock-solid 24 Vdc supply is delivered directly to the power input terminals under all plant operating conditions.

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