Overview
The Allen-Bradley 160S-AA04NPS1 is a fixed-speed, open-frame soft starter from the Bulletin 160 SSC (Smart Speed Controller) family manufactured by Rockwell Automation. This 0.75 kW / 1 HP drive accepts single-phase or three-phase AC input at 200–240V and uses preset frequency setpoints to deliver straightforward, non-modulating speed control. The unit is fan-cooled, IP20-rated for open environments, and includes a programmable 6-digit LED keypad module for local operation and parameter tuning.
Key Features
- Preset Speed Control: Fixed output frequency settings (0–240 Hz) selected via open-collector inputs (SW1, SW2, SW3) or internal function parameters 58–68.
- Built-in Keypad Module: 6-digit, 7-segment LED display with programming keys, control inputs, and directional indicators for local commissioning and troubleshooting.
- Flexible Input Compatibility: Accepts 1-phase or 3-phase 200–240V AC, 50/60 Hz; operational range 180–265V AC.
- Compact, Fan-Cooled Design: Lightweight enclosure (0.91–1.02 kg / 2–2.25 lb), dimensions 152 × 80 × 165 mm (6.00 × 3.15 × 6.51 in), suitable for control panel or wall mounting with 0.5 in minimum clearance.
- High Efficiency: 97.5% typical efficiency; 40 W dissipation; 2.2 kVA input power; handles 150% overload for 60 s or 200% for 30 s.
- Transient Protection: Standard 2 kV transient suppression; optional dynamic brake, MOV, line reactor, and capacitor modules available.
Technical Specifications
- Input Voltage: 200–240V AC, 1-phase or 3-phase, 50/60 Hz
- Input Voltage Range: 180–265V AC
- Input Current (Rated): 4 A
- Input Current (Operational): 9.4 A (typical)
- Input Power: 2.2 kVA
- Output Voltage: 0–input voltage (adjustable)
- Output Current (Maximum): 4.5 A
- Output Power: 0.75 kW / 1 HP
- Output Frequency: 0–240 Hz, programmable
- Power Dissipation: 40 W
- Efficiency: 97.5% (typical)
- Enclosure Type: Open (IP20)
- Control Type: Preset Speed (fixed frequency setpoints)
- Dimensions: 152 × 80 × 165 mm (6.00 × 3.15 × 6.51 in)
- Weight: 0.91–1.02 kg (2.0–2.25 lb)
- Operating Temperature: 0–50°C (32–122°F)
- Storage Temperature: −40–85°C (−40–185°F)
- Transient Protection: 2 kV standard
- Series / Bulletin: 160 SSC (Bulletin 160)
- Manufacturer: Rockwell Automation (Allen-Bradley brand)
- Status: Discontinued by manufacturer; available as tested surplus
Typical Applications
The 160S-AA04NPS1 is suited for:
- Test Equipment & Lab Controls: Stable, low-speed motor operation for dynamometers, conveyors, and pump speed control in laboratory settings.
- HVAC & Pump Duty: Single-speed or stepped-speed cooling tower fans and centrifugal pumps in light industrial facilities.
- Material Handling: Conveyor or agitator drive with fixed speed setpoints in food processing, warehousing, or light assembly.
- OEM Panel Builds: Compact footprint and open architecture simplify integration into distributed control panels and legacy equipment upgrades.
Compatibility & Replacements
The 160S-AA04NPS1 is discontinued but remains a standard reference in the Bulletin 160 product line. It is mechanically and electrically compatible with:
- 160S-AA04NPS1P1: Single-phase equivalent (200–240V 1-phase only)
- 160-AA04NPS1: Three-phase preset speed model (200–240V 3-phase, 1.5 kW)
For new installations, Rockwell Automation recommends:
- Bulletin 160G: Modern compact soft starter with integrated communications and diagnostics.
- SMC-3 Series: Networked AC drives with analog and digital control options.
- PowerFlex 525: Full-featured VFD for applications requiring continuous modulation and ramp/soak profiles.
Resellers such as DO Supply, Radwell, and Vitech Parts stock tested surplus units with 2-year warranties. Lead times vary; confirm compatibility with your application engineer before ordering.
