ABB 1SVR550127R1100 CT-ARE Electronic Time Relay with True OFF-Delay Function 0.1–10 Seconds

The complete ABB identification is 1SVR550127R1100. ABB product documentation identifies this order code as CT-ARE, while ABB’s product information describes the device as a single-function electronic time relay with a true OFF-delay function.

Product Identification

• Manufacturer: ABB
• Part Number: 1SVR550127R1100
• Type Designation: CT-ARE
• Product Range: CT-E
• Product Type: Electronic Time Relay
• Function: True OFF-Delay
• Time Range: 0.1–10 seconds
• Output: 1 Changeover Contact
• Mounting: DIN Rail

ABB CT-ARE Overview

The ABB CT-ARE is a single-function electronic timer designed specifically for OFF-delay applications. Unlike a conventional ON-delay timer, the OFF-delay function maintains the output state for the selected period after the controlling signal is removed.

The 1SVR550127R1100 version supports two control-supply voltage ranges through its designated connection arrangement: 24 V AC/DC and 220–240 V AC. ABB lists the device with a 0.1–10 second adjustable time range and one changeover output.

True OFF-Delay Function

The primary operating characteristic of the CT-ARE is its true OFF-delay function. This means the timing function is initiated when the control condition is removed, allowing the output to remain active for the selected delay period.

The adjustable time range extends from 0.1 seconds to 10 seconds. The timing value can therefore be selected according to the requirements of the associated control circuit.

This type of timing function is commonly used where a control signal or electrical load needs to remain active for a defined period after the initiating signal has been switched off.

Control Supply Voltage

The ABB 1SVR550127R1100 supports a rated control supply of 24 V AC/DC and 220–240 V AC. ABB’s product information specifically identifies these supply options for the CT-ARE model.

The applicable supply connection must be selected according to the electrical configuration of the timer and the control system. The actual wiring should follow the corresponding ABB technical documentation.

Time Adjustment

The CT-ARE provides an adjustable time setting within the 0.1–10 second range. The front-mounted setting arrangement allows the desired delay value to be selected for the control application.

The relatively short timing range makes this model suitable for control sequences requiring short delays rather than long-duration timing operations.

Output Contact

The ABB CT-ARE has one changeover contact, commonly represented as a 1 c/o or SPDT output. ABB specifies the output contact at up to 250 V / 4 A.

The changeover arrangement provides a common contact together with normally open and normally closed switching paths. This allows the timer output to be incorporated into different control-circuit configurations.

Technical Specifications

DIN Rail Installation

The ABB 1SVR550127R1100 is designed for DIN-rail mounting, making it suitable for installation inside industrial control cabinets and electrical distribution enclosures.

Its compact housing has a product width of approximately 22.5 mm, with dimensions of approximately 78 mm in height and 78.5 mm in depth.

The compact form factor allows the timer to be incorporated into control panels where available mounting space is limited.

Industrial Control Applications

OFF-delay timers are used in industrial control circuits where an output must continue operating for a defined period after an input or control signal is removed.

The ABB CT-ARE can therefore be incorporated into control sequences involving contactors, relays, indicator circuits, interlocking arrangements, machine-control functions and other time-dependent electrical operations.

The exact application depends on the wiring configuration and the electrical characteristics of the surrounding control system.

CT-E Timer Range

The CT-ARE belongs to the ABB CT-E electronic timer range. ABB’s catalog lists multiple CT-E timer types covering different timing functions, voltage configurations and time ranges.

Within this range, the CT-ARE is specifically associated with the true OFF-delay function without auxiliary voltage. This distinguishes it from other CT-E timer models designed for ON-delay, impulse, flashing or other timing functions.

Single-Function Timer Design

The 1SVR550127R1100 is a single-function timer. Its dedicated OFF-delay design provides a straightforward solution for applications that require one defined timing function.

This dedicated architecture can simplify control-panel design because the timer’s operating mode is fixed to the required OFF-delay function rather than requiring selection among multiple timing modes.

Electrical Control Integration

The CT-ARE can be integrated into electrical control circuits through its supply and changeover output terminals. The output contact allows the timer to control a downstream circuit according to the selected delay period.

When incorporated into an industrial control panel, the timer should be matched with the contact voltage, current, supply voltage and switching requirements of the connected circuit.

The control wiring must follow the applicable ABB connection diagram and the electrical design of the installation.

Product Dimensions

The narrow 22.5 mm housing is consistent with compact DIN-rail electronic control components used in industrial electrical cabinets. Product dimensions and mounting information are listed in ABB-related technical product records.

Maintenance and Replacement

For maintenance and replacement purposes, the complete part number 1SVR550127R1100 should be used as the primary identification reference.

The type designation CT-ARE should also be checked because ABB offers multiple timer models with similar physical dimensions but different timing functions, supply voltages and time ranges.

Before installation, the existing timer’s part number, supply voltage, timing range and output configuration should be compared with the replacement component.

Product Identification for Industrial Catalogues

A suitable technical product name for an industrial automation catalogue is:

ABB 1SVR550127R1100 CT-ARE Electronic Time Relay 0.1–10 s OFF-Delay

Useful search variations include ABB 1SVR550127R1100, ABB CT-ARE, ABB CT-ARE Time Relay, ABB 1SVR550127R1100 Timer Relay, ABB OFF-Delay Timer 0.1–10 s, and ABB CT-E Electronic Timer.

Part Number Verification

ABB’s own product information identifies 1SVR550127R1100 as the CT-ARE time relay, while ABB catalog documentation places the same order code within the CT-E time-relay range.

The complete identification should therefore be recorded as:

ABB CT-ARE — 1SVR550127R1100

Conclusion

The ABB 1SVR550127R1100 is the CT-ARE electronic time relay from the ABB CT-E timer range. It provides a dedicated true OFF-delay function with an adjustable 0.1–10 second time range.

The unit supports 24 V AC/DC and 220–240 V AC control supply and provides one changeover output rated at up to 250 V / 4 A. Its compact DIN-rail housing is approximately 22.5 mm wide.

For industrial automation and electrical control applications, the recommended catalogue identification is ABB 1SVR550127R1100 CT-ARE Electronic Time Relay with True OFF-Delay Function.