ABB CT-MFE 1SVR550029R8100 Electronic Time Relay

1. Product Overview

The ABB CT-MFE (1SVR550029R8100) is a high-precision electronic time relay designed for delayed control, cyclic operation, or logic control. Using microelectronic technology, it offers reliable timing functions with multiple selectable modes and a wide timing range. It is widely used in automation, motor protection, industrial equipment control, and building electrical systems.

2. Technical Specifications

General

• Model: CT-MFE

• Ordering Code: 1SVR550029R8100

• Type: Electronic Time Relay

• Mounting: DIN rail (35 mm)

Timing & Control Functions

• Time Range: 0.1 s to 100 h (adjustable)

• Timing Modes: Delay-on, Delay-off, cyclic, flashing, etc.

• Resolution: 0.1 s

• Accuracy: ±1%

Electrical

• Operating Voltage: AC/DC 24–240V

• Control Power: AC/DC

• Output Contact: SPDT (1 changeover contact)

• Rated Switching Current: 6A (AC1)

• Mechanical Life: >10,000,000 operations

• Electrical Life: >100,000 operations

Environmental

• Operating Temperature: –20°C to +60°C

• Storage Temperature: –40°C to +85°C

• Humidity: 5%–95% (non-condensing)

• Protection Class: IP20

• Industrial-grade vibration resistance

3. Features & Advantages

1. High-precision timing with wide range and fine resolution.

2. Multiple timing modes for versatile control.

3. Microelectronic technology ensures long mechanical life.

4. Wide voltage compatibility (AC/DC 24–240V).

5. Compact DIN rail design for easy installation.

6. Strong interference resistance for industrial environments.

4. Application Areas

• Industrial automation systems

• Motor delayed start and protection

• Control panels and distribution cabinets

• HVAC systems for cyclic and timed control

• Pumps, compressors, and conveyors

• Elevators, building, and factory automation

• Lighting, alarm, and signal delay control

5. Precautions & Maintenance

1. Disconnect power before installation.

2. Do not exceed rated current and voltage for the output.

3. Adjust timing settings according to the manual.

4. Avoid high humidity, high temperature, and corrosive environments.

5. Check terminals periodically for tightness.

6. Avoid strong vibration or impact.

7. Ensure proper ventilation for heat dissipation.

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