Reliance 805405-1R 15A SF3000 Field Power Module

Key Technical Specifications

Rockwell’s published S-3060 documentation specifies the 115–460 VAC ±10% input range, 48–62 Hz line frequency, 15 A rating, 20 A/600 V internal fuse, environmental limits, and the 254 × 128 × 127 mm enclosure dimensions for the 805405-1R.

At the specified 230 VAC operating point, the manual lists 7.5 kW maximum rated power at 15 A. The same manual identifies the 805405-1R as the S2 configuration; it should not be treated as interchangeable with the higher-voltage 805405-3R or higher-current 805405-5R simply because the part numbers look similar.

Product Introduction

The Reliance Electric 805405-1R is an SF3000 panel-mounted single-phase field power module used to provide regulated field excitation for DC motor systems in the AutoMax distributed power architecture. It is rated for 15 A and accepts 115–460 VAC ±10% input with a 48–62 Hz line frequency.

The important procurement detail is the exact S2 configuration. The 805405-1R is a non-reversing field-power unit and was designed for integration with the associated AutoMax/SF3000 power system. It is a discontinued legacy component, so exact part-number and hardware-condition verification should precede replacement ordering.

Installation & Configuration Guide

Stage 1 — Pre-Installation

Estimated time: 30–60 minutes

1. ⚠️ Apply LOTO and verify the DC motor drive is in a safe state.
2. Confirm the replacement nameplate reads 805405-1R.
3. Record the existing field-power module wiring, jumper/configuration information, and cabinet location.
4. Verify the incoming line voltage against the SF3000 application documentation.
5. Confirm cabinet ventilation and mounting clearance.
6. Back up the associated AutoMax application/configuration before removing hardware.

Critical: Do not substitute 805405-3R or 805405-5R based only on current or voltage availability. These models have different electrical ratings and physical dimensions.

Stage 2 — Remove the Existing Module

1. Verify absence of hazardous voltage using the site’s approved electrical procedure.
2. Label field-power, AC input, control, and grounding conductors before disconnection.
3. Photograph the existing wiring and terminal arrangement for controlled reassembly.
4. Remove the mounting hardware and withdraw the old module.
5. Inspect the cabinet for heat discoloration, loose terminals, damaged insulation, or contamination.

Stage 3 — Install the 805405-1R

Estimated time: 45–90 minutes

1. ⚠️ Verify the complete part number: 805405-1R.
2. Check the replacement enclosure and terminal hardware for shipping damage.
3. Mount the module in accordance with the SF3000 installation requirements.
4. Reconnect conductors using the documented original circuit arrangement.
5. Verify protective grounding and conductor torque.
6. Check that the cabinet has adequate convection airflow.
7. Compare the replacement wiring against the recorded as-found documentation.
8. Confirm that the connected field circuit is compatible with the 15 A rating.

Stage 4 — Power-On and Testing

Estimated time: 30–60 minutes

1. Perform a final visual and electrical inspection before energization.
2. ⚠️ Do not energize until all personnel are clear and the safety circuit is restored.
3. Apply power according to the approved SF3000 commissioning procedure.
4. Check for abnormal noise, odor, vibration, heating, or fault indications.
5. Verify the field excitation response under controlled conditions.
6. Confirm the associated AutoMax control system recognizes and regulates the field-power function correctly.
7. Perform a controlled motor test before returning the equipment to production service.
8. Record the replacement part number, hardware revision, test results, and configuration changes.

805405-1R

805405-1R

FAQ

Is the 805405-1R still manufactured?

No. Available technical sources identify the 805405-1R as a discontinued legacy component. Current market availability therefore depends on specialist surplus, refurbished, or remaining inventory.

What is the rated current of the 805405-1R?

The module is rated at 15 A. Rockwell’s documentation specifies 15 A at 40 °C and lists 7.5 kW maximum rated power for the 230 VAC configuration.

What input voltage does it accept?

The documented AC line range is 115–460 VAC ±10%, with a line frequency of 48–62 Hz. The 805405-1R’s rated 7.5 kW configuration is associated with 230 VAC operation.

Can I replace an 805405-1R with an 805405-3R?

Not as a direct assumption. The 805405-3R is a different field-power model with a different rated input/power configuration. Confirm the original system design, motor field requirements, cabinet dimensions, and electrical ratings before considering substitution.

Does the 805405-1R require an AutoMax system?

It belongs to the AutoMax/ Distributed Power System family and was designed for integration with the associated control and power architecture. Treating it as a generic standalone 15 A rectifier is not an appropriate replacement strategy.

What should I verify when buying a replacement?

At minimum, verify 805405-1R, S2 configuration, nameplate data, physical dimensions, terminal condition, insulation condition, and whether the unit is new surplus, refurbished, or previously installed. For a legacy power module, request clear nameplate photographs and available test documentation before committing to a replacement.

Is the 805405-1R hot-swappable?

Do not treat it as hot-swappable. It is a panel-mounted power module handling hazardous AC and motor-field power. Replacement should be performed with the system de-energized under the site’s approved LOTO and electrical safety procedures.