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Beckhoff KL4021 Analog Output Terminal

Beckhoff KL4021 Analog Output Terminal

Only 10 item(s) left in stock
  • Manufacturer: BECKHOFF

  • Product No.: KL4011

  • Country of origin:Germany

  • Product Type: Bus Terminal

  • Payment: T/T, Western Union

  • Weight: 500g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Description

The KL4021 is a high-precision, 1-channel analog output terminal designed for the Beckhoff Bus Terminal system. It generates standard industry signals ranging from 0 to 20 mA, utilizing single-ended output technology. With a 12-bit resolution and a fast conversion time of approximately 1.5 ms, this terminal is ideal for controlling analog actuators or process instrumentation in industrial automation environments. The module provides robust electrical isolation between the K-bus and field signals, ensuring reliable data transmission.

Features

  • 1-channel analog output (0…20 mA)
  • Single-ended technology
  • 12-bit resolution for precise signal control
  • Fast conversion time (~ 1.5 ms)
  • Robust electrical isolation (500 V)
  • Certified for hazardous areas (ATEX/IECEx)

Technical Specifications

Feature Specification
Manufacturer Beckhoff
Number of Outputs 1
Output Signal 0…20 mA
Load < 500 Ω
Resolution 12 bit
Conversion Time ~ 1.5 ms
Electrical Isolation 500 V (K-bus/signal)
Protection Rating IP20
Weight Approx. 80 g
Approvals CE, UL, ATEX, IECEx, DNV GL

Installation Guidelines

  • Mounting: Secure the KL4021 onto a standard 35 mm DIN rail (EN 60715). Ensure the locking mechanism is engaged for proper power contact with the terminal bus.
  • Power Supply: Operates on 24 V DC via power contacts. If 15 V DC operation is required for specific application needs, a KL9515 power supply terminal must be used.
  • Wiring: Use shielded twisted-pair cables for analog signal connections to minimize electromagnetic interference (EMI). Ground the shield correctly at the signal source or load to maintain signal integrity.
  • Safety: In hazardous environments (ATEX/IECEx Zone 2), ensure the terminal is housed in an enclosure that meets the requirements for the specific area classification.
  • Environment: Maintain operating temperatures between 0 degC and +55 degC and keep relative humidity below 95% (non-condensing).

What is the output signal range for the KL4021?

The terminal outputs a standard 0 to 20 mA signal.

What is the resolution of the analog output?

The KL4021 provides a resolution of 12 bits.

Is this terminal suitable for hazardous locations?

Yes, it carries ATEX and IECEx certifications for use in specific hazardous environments.

What is the typical conversion time?

The conversion time is approximately 1.5 ms.

Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Color pattern
White
Country of origin
Germany
Power source
DC Power

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