Honeywell 621-3500 Input Module

Overview

The Honeywell 621-3500 is a compact input module designed for industrial automation systems. It provides accurate signal acquisition from field devices, enabling seamless communication with controllers for reliable process monitoring.

General Information

Part Number: 621-3500

Manufacturer: Honeywell

Brand / Country of Origin: Honeywell / USA

Series: 621 (Input Modules)

Type: Input Module

Mounting: Panel or rack installation

Technology: Digital and analog input processing, signal acquisition, system integration

Power Specifications

Supply Voltage: 24 V DC

Power Consumption: ≤ 5 W

Input: Powered from system supply

Protection: Overvoltage and reverse-polarity protection

Indicators: LEDs for power and input activity

Communication & Interface

Ports: Supports standard industrial communication protocols

Module Role: Captures signals from field devices and relays them to the controller

Diagnostics: Input status monitoring, fault detection, and reporting

Operator Interface: LED indicators

Reset Features: Supports soft reset

I/O & Channels

Input Channels: Multiple digital and analog inputs

External Load Support: Not applicable; used solely for signal acquisition

Environmental

Operating Temperature: −20 to +60 °C

Humidity: Up to 95% RH, non-condensing

Protection Rating: IP20, suitable for cabinet installation

Dimensions & Weight

Dimensions (L × W × H): 158 × 47 × 108 mm

Weight: 0.2 kg

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