CT-ERS.12S

Name: CT-ERS.12S
Brand: ABB
SKU: CT-ERS.12S

The ABB CT-ERS.12S is a single-function electronic time relay providing an ON-delay function with 10 time ranges. It features easy-to-set front-face potentiometers for accurate time delay adjustment.

Product ModelCT-ERS.12S

Material Number1SVR730100R3100

Product ID71749

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Accurate TimingThe CT-ERS.12S offers precise ON-delay functionality, ensuring that your applications operate with the exact timing required. With 10 time ranges available, you can customize the delay to suit your specific needs.
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2. Easy SetupThe front-face potentiometers on the CT-ERS.12S provide direct reading scales, making it easy to set and adjust the time delay. This simplicity ensures that you can quickly configure the relay without needing extensive technical expertise.
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3. ReliabilityDesigned for reliability, the CT-ERS.12S is built to withstand the demands of various industrial applications. Its robust construction ensures consistent performance over time, minimizing downtime and maintenance needs.
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4. Versatile CompatibilityThe CT-ERS.12S supports a wide range of coil voltages, from 24 to 240 VAC and 24 to 48 VDC. This versatility makes it compatible with various systems, allowing you to integrate it seamlessly into your existing infrastructure.

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Product Net Width

22.5 mm

Product Net Height

85.6 mm

Product Net Depth / Length

103.7 mm

Product Net Weight

0.106 kg

Timer Relay Type

ON-Delay

Time Range

0.05 s ... 300 h

5. Compact DesignDespite its robust features, the CT-ERS.12S is designed to be compact and space-efficient. This makes it ideal for applications where space is limited, such as in control panels or small enclosures. Its compact size also facilitates easier installation and integration into existing setups.

Rated Control Supply Voltage (Us)

24 ... 240 V AC 24 ... 48 V DC

Rated Operational Voltage

Auxiliary Circuit 250 V

Rated Frequency (f)

50 / 60 Hz DC

Output

1 c/o (SPDT) contact

Terminal Type

Screw Terminals

Rated Operational Current AC-12 (Ie)

(230 V) 4 A

Rated Operational Current AC-15 (Ie)

(230 V) 3 A

Rated Operational Current DC-12 (Ie)

(24 V) 4 A

Rated Operational Current DC-13 (Ie)

(24 V) 2 A

Minimum Switching Capacity

12 V 100 mA

Rated Impulse Withstand Voltage (Uimp)

Input Circuit 4 kV Output Circuit 1 / Output Circuit 2 4 kV

Rated Insulation Voltage (Ui)

Input Circuit / Output Circuit 500 V Output Circuit 1 / Output Circuit 2 300 V

Degree of Protection

Housing IP50 Terminals IP20

Overvoltage Category

III

Pollution Degree

Short-Circuit Protective Devices

Output Circuit NC - F Type Fuses 6 A Output Circuit NO - F Type Fuses 10 A

Electrical Durability

AC-12 100000 cycle

Mechanical Durability

30000000 cycle

Connecting Capacity

Flexible with Ferrule 1x 0.5 ... 2.5 mmÂ² Flexible with Ferrule 2x 0.5 ... 1.5 mmÂ² Flexible with Insulated Ferrule 1x 0.5 ... 2.5 mmÂ² Flexible with Insulated Ferrule 2x 0.5 ... 1.5 mmÂ² Flexible 1x 0.5 ... 2.5 mmÂ² Flexible 2x 0.5 ... 1.5 mmÂ² Rigid 1x 0.5 ... 4 mmÂ² Rigid 2x 0.5 ... 2.5 mmÂ²

Tightening Torque

0.6 ... 0.8 NÂ·m

Wire Stripping Length

8 mm

Recommended Screw Driver

0.8 x 4 4.5 Pozidriv 1

Mounting Position

1 ... 6

Mounting on DIN Rail

TH35-15 (35 x 15 mm Mounting Rail) acc. to IEC 60715 TH35-7.5 (35 x 7.5 mm Mounting Rail) acc. to IEC 60715

Standards

CAN/CSA C22.2 No.14 IEC/EN 63000 IEC/EN 61812-1 UL 508

Maximum Operating Voltage UL/CSA

Output Circuit 300 V AC

Contact Rating UL/CSA

B300

Connecting Capacity UL/CSA

Flexible 1x 18-14 AWG Flexible 2x 18-16 AWG Rigid 1x 20-12 AWG Rigid 2x 20-14 AWG

Tightening Torque UL/CSA

7.08 inÂ·lb

Pilot Duty UL/CSA

B300

Flammability According to UL94

V-0

Ambient Air Temperature

Operation -25 ... +60 Â°C Storage -40 ... +85 Â°C

Maximum Operating Altitude Permissible

Without Derating 2000 m

Object Classification Code

ETIM 7

EC001439 - Timer relay

ETIM 8

EC001439 - Timer relay

ETIM 9

EC001439 - Timer relay

eClass

V11.0 : 27371605

UNSPSC

39122329

E-Number (Finland)

2712203

E-Number (Norway)

4187950

E-Number (Sweden)

4033115

Manufacturer ID

1SVR730100R3100