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Relays and Timers
Allen-Bradley

Our relays and timers are designed, manufactured and tested to meet the most demanding worldwide standards and ratings.
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Overview
700-HA GP Tube Base Relay
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Relays and timers are fundamental building blocks for reliable control architecture. With precise timing, flexible configurations, and rugged construction, they support safe, scalable system design—from basic control panels to advanced automation architectures.

As fundamental building blocks of control architecture, relays and timers deliver essential functions such as isolation, amplification, sequencing, and protection across machine and system designs. The Allen‑Allen‑Bradley® relay and timer portfolio provide rugged industrial performance with precise timing accuracy, broad contact configurations, and flexible mounting options that scale from simple panel designs to complex automation systems.

Whether you require electromechanical, solid‑state, IEC, or NEMA solutions, our relays and timers help you design with confidence, support safe and consistent operation, and keep your equipment running with exceptional reliability.

Key Features

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High Reliability & Industrial Durability

Engineered for harsh environments, these relays and timers deliver long electrical life, high switching capability, and dependable performance essential for uptime. Reliable switching reduces maintenance, ensures predictable machine behavior, and lowers total cost of ownership.

Broad Portfolio for Every Application

Choose from general-purpose, IEC, NEMA, and solid-state offerings—each designed to meet unique control requirements. The right relay for the right job helps optimize panel space, performance, and standardization.

Simplified Panel Integration

DIN-rail mounting, plug-in bases, and standardized terminal layouts streamline wiring and replacement. Faster installation and easier maintenance reduce downtime and improve usability for technicians.

Solid-State Precision & Speed

For applications requiring high‑speed operation and silent switching, solid‑state relays deliver greater accuracy and extended service life. Ideal for high‑frequency and high‑duty cycle applications; they help maintain consistent performance where mechanical relays can fall short.

Boral Quarry Invests in Intelligent Motor Control Solution
Boral Quarry Invests in Intelligent Motor Control Solution
Case Study
Case Study
Boral Quarry Invests in Intelligent Motor Control Solution
Boral recently invested in an intelligent motor control solution to improve uptime and leverage the longevity and compliance provided by the latest motor control technology.

Confidence Starts with the Right Control Foundation

Relays and timers designed to scale with your system and your standards.

Product
General Purpose Relays

General purpose relays provide economical, dependable switching for a wide range of control applications. These versatile components offer multiple contact configurations, plug-in bases, and clear status indication—making them ideal for panel builders and OEMs who demand flexibility and simplicity.

General Purpose Relays

Product
General Purpose Timing Relays

These timing relays deliver adjustable or fixed timing functions for sequencing, delay, and protection tasks. With options for on-delay, off-delay, interval, and multifunction timing, they help streamline repetitive control logic and simplify PLC programming where discrete timing is preferred.

General Purpose Timing Relays

Product
IEC Industrial Relays

IEC relays are built to meet international standards for performance, durability, and application flexibility. Compact footprints, universal accessories, and standardized terminals make them easy to integrate in global machine designs requiring high reliability and rapid availability.

IEC Industrial Relays

Product
NEMA Industrial Relays

NEMA relays deliver rugged performance with wide spacing, high interrupt ratings, and durability engineered for tough industrial conditions. They’re ideal for North American installations that require robust contact carriers and code-compliant performance in demanding environments.

NEMA Industrial Relays

Product
NEMA Industrial Timing Relays

Combining the toughness of NEMA construction with advanced timing functions, these units offer precise control for protective timing and machine sequencing. Their robust build and clear configuration interfaces support consistent performance in heavy-duty applications.

NEMA Industrial Timing Relays

Product
Solid-State Relays

Solid-state relays provide high-speed, silent switching with no mechanical wear—ideal for applications with frequent cycling or sensitive loads. They offer superior reliability, reduced heat generation, and long service life, making them the preferred choice for precision‑driven applications.

Solid-State Relays

Build a Complete, Connected Control System

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What’s the difference between electromechanical and solid-state relays?

Electromechanical relays use physical contacts to switch loads, making them cost-effective and versatile for many general applications. Solid‑state relays use semiconductor technology with no moving parts, delivering faster switching, silent operation, and longer life. For high-cycling or sensitive loads, solid-state relays often provide greater reliability.

How do I choose between IEC and NEMA relays?

Selecting IEC vs. NEMA depends on regional standards, design philosophy, and specific application needs. IEC relays are compact, modular, and optimized for worldwide use. NEMA relays are rugged, larger, and designed for heavy-duty North American environments. Both meet different regulatory expectations, so your choice depends on required durability, footprint, and regional compliance.

When should I use a timing relay instead of a programmable controller?

Timing relays are ideal when you need simple, discrete timing functions—such as on/off delays, interval timing, or repeat cycles—without the cost or complexity of programming a PLC. They’re especially useful in small machines and retrofit applications where quick installation and standalone functionality are priorities.

Are relays suitable for safety applications?

Standard relays are not designed for safety-certified circuits. Machine safety functions require safety-rated components—such as safety relays or safety controllers—that meet global safety standards like ISO 13849 and IEC 62061. If your application includes emergency stops or safety interlocking, explore certified safety relays.

What mounting options are available for relays and timers?

Most Allen‑Bradley relays and timers offer DIN-rail or panel-mount configurations, with plug‑in bases for fast replacement. These mounting options support streamlined installation, easier wiring access, and reduced panel complexity. Accessories such as hold-down clips and marker tabs help maintain secure and organized panel layouts.

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700-HA Tube Base Relays
These general purpose relays are ideally suited for applications with machine tool, pulp and paper, and transportation OEMs.
700-HB Square Base Relays
These relays are designed for HVAC, elevator, and automotive industry applications and offer IEC closed terminal and NEMA open terminal versions.
700-HC Miniature Ice Cube Relays
These are 4-pole plug-in relays for your low-energy switching applications.
700-HD Flange Mount Square Base Relays
These relays feature blade-style quick connect terminals.
700-HF Miniature Square Base Relays
These relays are ideal for automotive applications.
700-HG Power Relays
These relays are suitable for switching DC loads and are available with an optional magnetic blowout for arc suppression, enabling switching of even higher current DC circuits.
700-HHF Flange Mount Power Relays
These relays are small-sized general purpose relays that switch large loads.
700-HJ Magnetic-latching Relays
These relays control lighting loads or continuous duty applications to save energy.
700-HK Slim Line Relays
These relays are ideal for a variety of high-density isolation and interposing applications.
700-HL Terminal Block Style Relays
These terminal block relays include a 6.2 mm wide per-pole interface and quick connections help reduce installation costs.
700-HP PCB Pin Style
Our Bulletin 700-HP Relays are general purpose relays with plug-in PIN-style printed circuit board (PCB) terminals.
700-HPS PCB Pin Style Safety Relays
These relays feature mechanically linked contacts that are required for safety circuits as per EN 50205 (Type B).
700-HTA Alternating Relays
These relays serve as interposing relays between your controller and field devices and lets you select the primary or secondary load or to alternate between the two.
700-FE Economy Timing Relays
These relays are 17.5 mm wide and have a timing range of 0.05 seconds to 100 hours.
700-FS High-performance Relays
These relays have a 22.5 mm space-saving design and a timing range of 0.05 seconds to 300 hours.
700-HLF Terminal Block Timing Relays
These relays are relay- and socket-assembled modules for high-density applications.
700-HNC Miniature Timing Relays
These relays are some of the smallest timing relays available. They require only 26 mm (1.02 in.) on a DIN Rail, with a socket.
700-HNK Ultra-slim Timing Relays
These relays are some of the smallest plug-in relays on the market. They require only 15.6 mm (5/8 in.) DIN Rail space in a socket.
700-HR Dial Type Timing Relays
These relays are plug-in socket-mounted timing relays. They are easy to set, and can be panel- or DIN rail-mounted.
700-HT Tube Base Timing Relays
These relays are best for general purpose applications and mount on tube-type bases.
700-HV Repeat Cycle Timing Relays
These relays provide cycled on-off switching when a signal is applied. The on and off intervals are independently adjustable.
700-HX Multifunction Digital
These relays use a highly visible negative transmissive status indicator display to increase readability and offer two additional modes for application flexibility.
700-CF IEC Industrial Control Relays
These relays provide features required for demanding industrial applications such as mechanically linked contacts, timing options, and long contact life in an IEC design.
700-EF Industrial Control Relays
These relays offer low power consumption and universal wide range coils which enables four coils to cover control voltages from 24V…500V, 50-60 Hz, DC.
700-K Miniature Industrial Control Relays
These relays are compact sized and capable of switching low-energy signals.
700S-CF IEC Safety Control Relays
These relays provide mechanically or mirror contact performance, which are required in feedback circuits for safety applications.
700-P NEMA Heavy-Duty Relays
These relays offer time delay, latching attachments, overlapping, and logic need contacts and can be combined into one relay.
700S Heavy-duty Safety Control Relays
These relays are designed to meet worldwide safety standards with mechanically linked contacts and tamper-resistant covers.
700-R NEMA Sealed Switch Industrial Control Relays
These relays include tungsten-tipped, hermetically sealed contacts provide high-reliability switching of low voltage circuits in harsh environments.
700-N NEMA Low Profile Industrial Control Relays
These electrically held relays have manual override capability with easy-to-identify status indication on the highly visible red bar.
700-PS NEMA Solid-state Adjustable Timing Relays
These relays can be mounted on 4-pole and 2-pole relays. Using an adapter plate, you can also mount it for standalone use.
700-RTC NEMA Solid-state Fixed Timing Relays
These relays are fixed timing relays designed for applications requiring a specific time delay in which inadvertent timing changes must be avoided.
700-SA Tube Base Solid-state Relays
These relays are rated to 5 A load output current.
700-SC Ice Cube Solid-state Relays
These relays are miniature, socketed relays rated to 3 A load output current.
700-SF Square Base Solid-state Relays
These relays are 3 A rated solid-state relays compatible with HN116 sockets.
700-SH Hockey Puck Style Solid-state Relays
These relays can handle up to a 40 A continuous resistive load with heat sink in a hockey-puck shaped package.
700-SK Slim Line Solid-state Relays
These relays are compatible with HN121 or HN122 sockets and up to 2 A current ratings.
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