White Rodgers RBM Type 154 90-165
•3 pole contactor
•208 / 240 volt AC coil
•19mA
•4.5VA(nominal)
•Maximum 52VA (inrush)
The White Rodgers RBM Type 154, model 90-165, is a heavy-duty, 3-pole electromechanical contactor designed for reliable switching of high-power loads. With a robust 30-amp contact rating and a 208/240VAC coil, this component is an industry-standard workhorse for commercial and residential HVAC systems, industrial machinery, and agricultural equipment.
This contactor acts as a high-capacity relay, using a low-voltage control circuit to safely switch a high-voltage power circuit, making it essential for compressors, motors, and heating elements.
Key Features & Benefits
-
30 Amp Contact Rating:Â Handles significant electrical loads, making it ideal for large air conditioning units, heat pumps, and industrial equipment.
-
3-Pole Design:Â Allows for the simultaneous switching of three separate circuits or a 3-phase power supply. The standard configuration is one pole for each power leg and one for the compressor.
-
208/240 Volt AC Coil:Â The coil voltage matches common commercial and residential power supplies, ensuring broad compatibility. The coil draws power only during the brief moment of engagement, promoting energy efficiency.
-
Durable Construction:Â Features a robust, thermoplastic enclosure that is dust-tested and drip-proof, protecting the internal components for long-term reliability.
-
Silver Cadmium Oxide Contacts:Â Provide excellent resistance to welding and erosion, ensuring a long electrical life and dependable performance under frequent switching and high inrush currents.
-
Easy Installation:Â Clearly marked terminals (L1, L2, L3, T1, T2, T3) and a straightforward design allow for quick and error-free replacement or new installation.
-
Plug-In & Bolt-On Options:Â Versatile mounting styles to fit various application requirements.
Technical Specifications
| Feature | Specification |
|---|---|
| Manufacturer | White Rodgers (now part of Emerson) |
| Model Number | RBM 154-90-165 / Type 154 |
| Contact Rating | 30 Amps |
| Poles | 3 |
| Coil Voltage | 208/240 VAC, 60 Hz |
| Contact Material | Silver Cadmium Oxide |
| Enclosure Rating | NEMA 3R (Rainproof, Sleet-Resistant) |
| Terminal Type | Screw |
| Mounting | Plug-In or Bolt-On |
Common Applications
This 3-pole contactor is a critical component in a wide range of electrical systems:
-
HVAC/R Systems:Â Primarily used to control the compressor and condenser fan motor in large residential and commercial air conditioners and heat pumps.
-
Industrial Machinery:Â Provides reliable motor control for pumps, compressors, and other industrial equipment.
-
Agricultural Equipment:Â Used in irrigation systems, barn fans, and other farm machinery requiring robust switching.
-
Electric Heating:Â Controls high-current heating elements.
