Overview
The Eaton Durant 57601-401 is a dependable panel-mounted totalizer counter designed for industrial counting, batching, and rate monitoring applications. This Ambassador Series unit operates on 115VAC 50/60Hz power and delivers precise count control with configurable inputs and outputs. The 6-digit green display provides easy readability in control panels and assembly line environments.
Key Features
- Six-digit, single preset counter
- 1/Tau rate meter for dynamic flow and speed measurement
- Four user-configurable control inputs for flexible automation logic
- One output relay and two solid state outputs for downstream control
- RS-485 serial communications for integration with host systems and printers
- Green display with high contrast for panel visibility
- Counter and rate meter scaling to match process units (pieces/min, gallons/hour, etc.)
Technical Specifications
- Display: 6-digit green LED
- Input Power: 115VAC, 50/60Hz
- Power Consumption: 7W nominal
- Count Inputs: High-speed solid state or contact inputs (40 Hz limit for contact)
- Control Inputs: 4 programmable DC sink inputs
- Output Relay: 1 Form C contact relay
- Solid State Outputs: 2 isolated solid state outputs
- Communications: RS-485 serial (host or printer mode)
- Series: Ambassador Series Count Control
- Display Alternative: 57601-451 with red display
- Weight: Approximately 1 lb
Typical Applications
The 57601-401 is widely used in:
- Production line item counting and batching
- Flow measurement and totalization (liquids, gases)
- Distance and length measurement via encoder input
- Rate monitoring for speed control loops
- Preset counters for automated part dispensing
- Bottling, packaging, and assembly automation
Compatibility & Replacements
Compatible With
- RS-485 serial communications in host mode (responds to host computer) or printer mode
- Standard 115VAC single-phase control panel power supplies
- Discrete 24VDC control logic (sink-type inputs)
- Open-collector and solid state count sensors
- Contact closure counters
Replaces / Drop-In Replacement For
- 57601-400 (earlier generation 6-digit single preset)
- Other vintage Durant Ambassador 57601-4xx single preset models with equivalent specifications
Works With
- RS-485 serial communications capable systems and printers
- PLC/controller serial ports with RS-485 network capability
- HMI systems with serial data logging features
- Discrete relay and transistor output modules
- Standard AC control transformers and power distribution


















