193-EC1ZZ 193-EIMD Allen-Bradley

193-EC1ZZ 193-EIMD Allen-Bradley Central control module

Brand：Allen-Bradley Model number：193-EC1ZZ 193-EIMD

Country of origin: United States Product weight：0.55kg

HS code：8517623990

Product Details：

Product Dimensions：

The Allen-Bradley 193-EC1ZZ and 193-EIMD are components of the E3 and E3 Plus Electronic Overload Relay family, designed to provide advanced motor protection and integration into industrial communication networks like DeviceNet. These devices are widely recognized for their modularity and ability to monitor complex motor health parameters beyond simple thermal overload.

Allen-Bradley 193-EC1ZZ Electronic Overload Relay

Product Detailed DescriptionThe 193-EC1ZZ is a high-performance E3 Electronic Overload Relay designed for panel mounting. It acts as the core processing unit for motor protection, utilizing true RMS current sensing to monitor motor conditions accurately. Unlike traditional bimetallic relays, it provides a microprocessor-based solution with programmable trip and warning settings. This specific model is typically used with external current transformers (CTs) to handle high-amperage applications.

Product Parameters

Current Adjustment Range: 9 to 5000 Amps (when used with appropriate external CTs)
Control Power Supply: 24V DC (operating range of 11 to 25V DC)
Inputs and Outputs: 2 digital inputs and 1 relay output
Terminal Type: M5 screw terminals
Rated Frequency: 20 to 250 Hz
Maximum Voltage: 600V AC (UL) / 690V AC (IEC)
Protective Functions: Thermal overload, phase loss, ground fault, stall/jam (overcurrent), and over-temperature protection

Product Advantages

Advanced Diagnostics: Includes LED indicators for status and troubleshooting, allowing operators to identify the cause of a trip quickly.
Network Integration: Features built-in DeviceNet compatibility with physical node address switches, enabling easy integration into automated control systems.
Precision Sensing: Uses true RMS current sensing to account for harmonic distortion and non-sinusoidal waveforms, ensuring more accurate protection than thermal-only models.
Versatility: The wide current adjustment range and field-configurable trip classes (Class 5 to 30) allow one unit to serve many different motor sizes and load types.

Precautions and Important Notes

Discontinued Status: The 193-EC1ZZ is a legacy product and has been largely succeeded by the modular E300 series. Availability is often limited to surplus or replacement stock.
Professional Installation: Wiring and configuration must be performed by trained personnel to ensure proper protection settings and avoid equipment damage.
External CT Requirement: Because this unit does not have integrated power through-holes for high currents, it must be correctly matched with external current transformers.

Product Applications

Industrial Motor Control: Ideal for protecting large three-phase motors in manufacturing, processing plants, and water treatment facilities.
Critical Equipment Safety: Used where downtime must be minimized through early warning settings that alert operators before a trip occurs.
Integrated Systems: Often found in motor control centers (MCCs) that require remote monitoring via a PLC or SCADA system.

Allen-Bradley 193-EIMD AC Input Interface Module

Product Detailed DescriptionThe 193-EIMD is an auxiliary input interface module designed specifically to expand the capabilities of the 193-EC (E3) and 592-EC (E3 Plus) overload relays. It serves as a bridge, allowing the relay to receive and process high-voltage AC control signals from the field and convert them into logic-level data for the motor protection system.

Product Parameters

Module Type: AC Input Interface
Number of Inputs: 4 independent AC input channels
Nominal Voltage: 110 to 120V AC
Voltage Range: 79 to 132V AC
Response Time: Maximum 30 ms (on-delay and off-delay)
Frequency Compatibility: 50/60 Hz
Power Consumption: Approximately 0.10 Watts per input

Product Advantages

Enhanced Logic: By providing 4 additional inputs, this module allows the E3 relay to incorporate more complex field signals (such as limit switches or remote start/stop buttons) into its control logic.
High-Voltage Tolerance: Safely interfaces 120V AC field wiring with the low-voltage internal circuitry of the relay.
Compact Design: Snaps directly onto the side of the main relay or can be mounted nearby, minimizing the required panel space.
Industrial Ruggedness: Specifically built to withstand the electrical noise and vibration common in industrial control environments.

Precautions and Important Notes

Compatibility Check: This module is only compatible with the E3 and E3 Plus series. It cannot be used as a standalone I/O module for other systems.
Signal Voltage: Ensure the field signals are strictly within the 110-120V AC range; applying DC or higher AC voltages will damage the module.
Maintenance: When replacing, ensure the system is completely powered down, as the module handles 120V AC signals which pose a shock hazard.

Product Applications

Remote Signal Integration: Used to bring 120V AC control signals from remote operators or sensors into the motor starter logic.
Interlocking Logic: Facilitates the creation of safety interlocks where a motor should only run if a specific AC-powered external condition is met.
Retrofitting Panels: Commonly used when upgrading older motor control panels that use 120V control circuits to modern electronic protection.

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