BECKHOFF KL9512 KL Series Power Supply Terminal

Product Overview

The KL9512 (KL9512) is a precision-engineered power supply terminal from the Beckhoff KL series, designed to provide a stable, regulated 12 V DC output from a standard 24 V DC industrial bus system. This module is essential for applications requiring localized low-voltage power for specialized sensors, field instruments, or communication modules within a distributed I/O architecture. By ensuring a tightly stabilized voltage with minimal residual ripple, the KL9512 helps maintain signal integrity in sensitive analog loops and digital control circuits, thereby preventing intermittent faults and reducing diagnostic downtime in high-density automation environments.

Technical Configuration

The KL9512 utilizes a compact terminal housing designed for seamless integration into existing Beckhoff Bus Terminal nodes. It accepts a wide input range of 24 V DC (-15 % / +20 %) and converts it to a steady 12 V DC with a tolerance of plus or minus 1 %. The unit is inherently protected against short circuits and features a front-mounted LED to provide immediate visual feedback regarding overcurrent conditions. Designed for versatility, it supports side-by-side mounting via double slot and key connections, facilitating efficient panel space utilization. The spring-actuated terminal points allow for rapid, vibration-resistant wiring using solid or flexible conductors with ferrules.

Technical Specifications

FAQs

Is the KL9512 suitable for hazardous location installations?

Yes, the unit carries ATEX approval with the marking II 3 G Ex nA IIC T4 Gc, making it suitable for use in designated explosive atmospheres.

How does the overcurrent protection function?

The terminal is equipped with an integrated overcurrent detection circuit. If a short circuit or overcurrent occurs, the output will shut down to protect the internal components, and the status LED will indicate the fault condition.

Can I mount this terminal directly next to other Bus Terminals?

Yes, the KL9512 is designed for side-by-side mounting using a double slot and key system, which ensures mechanical stability and proper alignment on the 35 mm DIN rail.

Installation and Wiring Guidelines

• Terminal Wiring: To ensure reliable contact, use a screwdriver to actuate the spring terminals. For solid wires (s) or stranded wires (st), the cross-section is 0.08 to 2.5 mm squared (AWG 28 to 14). For flexible conductors with ferrules (f), use 0.14 to 1.5 mm squared (AWG 26 to 16). Always strip the insulation to a length of 8 to 9 mm.
• Thermal Management: While the unit is designed for compact mounting, ensure adequate airflow within the control cabinet. Avoid placing high-heat generating components directly adjacent to the power supply terminal to maintain the rated operating temperature range of 0 to 55 deg C.
• Grounding and EMI: Despite the low ripple output, always ensure the DIN rail is properly grounded. When wiring the 24 V DC input, use shielded cables if the cable run is extensive to prevent electromagnetic interference from affecting the stabilized 12 V DC output.