Reliance 57C493
Product Name: Reliance 57C493 Automax Power Supply
Product Description:
The Reliance 57C493 is a 376-watt power supply module designed for the Reliance Electric Automax Programmable Logic Controller (PLC) system. It converts 100-132 VAC input power into the necessary DC voltages to operate other modules within the AutoMax rack. This module features over-voltage and over-current protection, captive ejectors, and a removable terminal switch. It also includes LEDs for power and fault indication, a keyswitch for program/memory protect/setup modes, a replaceable fuse, and a provision for a battery back-up. The module occupies three slots in an AutoMax storage rack and must be installed in the leftmost position.
Key Characteristics:
- Power Supply Module: Provides DC power for the Reliance Automax PLC system.
- Output Power: 376 Watts.
- Input Voltage: 100-132 VAC.
- Input Frequency: 50/60 Hz.
- Isolation: 1500 VAC input-to-input, 600V DC output-to-rack.
- Protection: Over-voltage and over-current protection.
- Indicators: POWER and FAULT LEDs.
- Control: Keyswitch with PROGRAM, MEMORY PROTECT, and SETUP positions.
- Fuse: Replaceable 250V fuse.
- Battery Back-up: Provision for optional battery back-up.
- Installation: Requires three slots in an AutoMax rack, leftmost position.
Product Parameters:
- Manufacturer: Reliance Electric (also sold under Asea Brown Boveri/ABB and Baldor Reliance at different times).
Part Number: 57C493.
- Product Type: Power Supply Module.
- Power Rating: 376 Watts.
- Input Voltage: 100-132 VAC.
- Input Current: 7.8/6.5 Amps.
- Output Voltage: 6/12 VDC (maximum).
- Output Current: 50 Amps (maximum).
- Weight: Approximately 1.4 kg (3.08 lbs) to 3.8 kg (8.00 lbs) – verify based on the specific unit.
- Dimensions: Approximately 22.9 cm x 5.1 cm x 15.2 cm (9.0 in x 2.0 in x 6.0 in) to 29.8 cm H x 10.2 cm W x 19.7 D (11.7 in x 4.0 in x 7.8 in) – verify based on the specific unit.
- Operating Temperature: 0 to 60 °C (32 to 140 °F).
- Humidity: 5-90% RH, non-condensing.
