BNT 10A Dual Function Timer Relay – AC230V DC24V Delay On Off

Description

Product Overview

The BNT 10A Dual Function Timer Relay is engineered to deliver precise timing control in demanding electrical environments. Built to operate on both AC230V and DC24V power sources, this relay offers unparalleled flexibility for a wide range of applications, from residential HVAC systems to industrial automation panels. Its core architecture features a robust SPDT contact arrangement (1 NO / 1 NC) capable of handling up to 10 A of continuous AC current, ensuring reliable switching performance even under heavy load conditions.

One of the standout attributes of this relay is the adjustable time scale, which spans from a rapid 0.1 seconds to an extended 10 days. The timing interval is divided into eight distinct ranges, each selectable via a high‑resolution potentiometer that provides smooth, incremental adjustments. This granularity empowers installers and engineers to fine‑tune delay intervals to match exact system requirements, eliminating the need for multiple separate devices.

The unit’s ultra‑small footprint—measuring just 3.18 × 2.67 × 0.7 inches and weighing only 1.83 ounces—makes it an ideal candidate for DIN‑rail mounting in cramped control cabinets. Despite its compact size, the relay does not compromise on durability; it is constructed from high‑grade insulating materials and features a sealed enclosure that protects internal components from dust, moisture, and temperature fluctuations.

Usage

Designed with versatility in mind, the BNT timer relay excels in a variety of real‑world scenarios. In residential heating, ventilation, and air‑conditioning (HVAC) installations, the relay can be employed to stagger the start of compressors, preventing simultaneous inrush currents that could overload the power supply. By configuring a short delay on start‑up, technicians can ensure that each component powers up in a controlled sequence, extending equipment lifespan and improving overall system efficiency.

For furnace replacement projects, the relay’s delay‑off capability is equally valuable. When a furnace shuts down, a brief delay before cutting power to ancillary components—such as fans and igniters—helps dissipate residual heat safely, reducing wear on mechanical parts and enhancing safety. The ability to set this delay anywhere from a fraction of a second to several hours provides the flexibility needed to meet diverse code requirements and manufacturer specifications.

Beyond HVAC, the relay is well‑suited for industrial automation tasks, including conveyor belt control, motor sequencing, and safety interlock systems. Its dual‑function nature allows a single device to replace two separate relays, simplifying wiring diagrams and reducing panel space. The wide voltage compatibility also means the same part can be stocked for both AC and DC applications, streamlining inventory management for maintenance teams.

Installation is straightforward thanks to the DIN‑rail mounting system. Users simply snap the relay onto the rail, secure it with the provided clip, and connect wiring to the clearly labeled terminals. The potentiometer adjustment knob is positioned for easy access, enabling on‑site calibration without the need for specialized tools. This user‑centric design reduces installation time and minimizes the potential for wiring errors.

Why Choose Us

When selecting a timer relay for critical applications, reliability, precision, and support are non‑negotiable factors. BNT has a long‑standing reputation for delivering high‑quality electrical components that meet rigorous industry standards. Each relay undergoes comprehensive testing, including thermal cycling, voltage surge, and mechanical endurance assessments, to guarantee consistent performance over the product’s lifespan.

Our commitment to quality extends beyond the manufacturing process. We provide detailed technical documentation, including wiring diagrams, timing charts, and installation guides, ensuring that engineers have the information they need to integrate the relay seamlessly into their designs. In addition, our dedicated technical support team is available to assist with configuration questions, troubleshooting, and custom application advice, reinforcing our focus on customer success.

Environmental responsibility is also a core value. The relay’s low power consumption and durable construction reduce the need for frequent replacements, contributing to lower waste and a smaller carbon footprint. By choosing the BNT timer relay, you are not only investing in a reliable component but also supporting sustainable manufacturing practices.

Finally, we stand behind our products with a comprehensive warranty that covers manufacturing defects and performance issues. This warranty, combined with our responsive after‑sales service, provides peace of mind for installers, facility managers, and end‑users alike.

Key Features

• Adjustable delay ranging from 0.1 seconds to 10 days, giving you precise control over start‑up and shut‑down sequences.
• Dual voltage compatibility (AC230V & DC24V) eliminates the need for multiple relay types, simplifying inventory and wiring.
• Compact DIN‑rail design fits into tight control panels while maintaining robust mechanical strength.
• High‑current 10 A AC1 contact rating ensures reliable switching for demanding loads.
• Responsive customer support and a solid warranty provide confidence and assistance throughout the product lifecycle.

FAQ

How do I set the delay time on the BNT timer relay?

To adjust the delay, locate the potentiometer knob on the side of the relay. Turn the knob clockwise to increase the delay and counter‑clockwise to decrease it. The relay is divided into eight preset ranges; each full rotation moves the setting to the next range. For precise timing, refer to the included timing chart which correlates knob positions with exact delay values.

Can this relay be used in a DC‑only system?

Yes, the BNT relay is designed to operate on both AC230V and DC24V power sources. When used in a DC‑only environment, ensure that the supply voltage is within the specified 24 V range and that the load does not exceed the 10 A rating. The internal circuitry automatically adapts to the DC input, providing the same reliable timing functions as in AC applications.

What safety certifications does the relay have?

The relay complies with CE marking requirements and meets IEC 60947‑5‑1 standards for control relays. It has also passed UL 508 testing for industrial control equipment, confirming its suitability for use in North American commercial and industrial installations.

Is the relay suitable for outdoor installations?

While the relay’s sealed enclosure offers protection against dust and moisture, it is intended for indoor use or protected outdoor enclosures. For fully exposed outdoor applications, additional weather‑proof housing should be employed to ensure long‑term reliability under harsh environmental conditions.

What warranty coverage is provided?

BNT offers a two‑year limited warranty that covers any manufacturing defects and performance failures under normal operating conditions. Should a defect arise, contact our support team with the product serial number and proof of purchase; we will arrange a replacement or repair in accordance with the warranty terms.