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The 3500/33 (162291-01) is a high-density relay output interface designed for the 3500 Machinery Protection System developed by Bently Nevada. This module provides 16 independent relay output channels, significantly expanding the...
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The 3500/33 (162291-01) is a high-density relay output interface designed for the 3500 Machinery Protection System developed by Bently Nevada. This module provides 16 independent relay output channels, significantly expanding the system’s ability to drive external alarm devices, annunciator panels, and emergency shutdown circuits.
Unlike low-density relay modules, the 3500/33 (162291-01) is optimized for complex industrial plants that require extensive discrete output signaling to represent multiple machine protection states across monitoring channels. Each relay channel can be fully programmed via 3500 Rack Configuration Software using advanced logic structures such as AND / OR voting logic, allowing trip conditions to be triggered by single or multiple alarm inputs.
The module uses industrial-grade electromechanical relay components to ensure reliable contact switching in environments with high vibration, electrical noise, and thermal stress. This makes it suitable for mission-critical safety and machine protection applications in heavy industry.
| Item | Specification |
|---|---|
| Part Number | 162291-01 |
| Module Type | 16-Channel High-Density Relay Output |
| Contact Type | SPDT (Single Pole Double Throw) per channel |
| Relay Rating | 5A @ 24 Vdc / 5A @ 240 Vac (Resistive load) |
| Maximum Switching Power | 1200 VA / 150 W |
| Logic Support | Programmable voting and alarm logic |
| Operating Temperature | -30°C to +65°C |
| Dimensions | 24.2 cm × 24.1 cm × 24.4 cm |
| Weight | 2.0 kg |
The 3500/33 (162291-01) is widely used in:
Power generation plants
Petrochemical processing facilities
Oil and gas production infrastructure
Compressor and turbine protection systems
Typical functions include driving local alarm panels, sending digital signals to PLCs, and controlling auxiliary equipment such as pump start/stop interlocks based on monitored vibration or temperature conditions.
Can these relays be configured for "Normally De-energized" operation?
Yes. The 3500/33 (162291-01) supports both Normally Energized (fail-safe) and Normally De-energized configurations. These settings are selectable individually for each relay channel using system configuration software.
What is the advantage of the 16-channel module over the 3500/32?
The 162291-01 provides significantly higher output density—offering 16 relay channels in a single rack slot, compared to the lower-density 4-channel configuration of standard relay modules. This reduces cabinet space requirements while increasing protection logic flexibility.
