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ICM Time Delay Relay: Off Delay, Fan Blower Control, 12 sec to 390 sec, 18 to 30V AC - Adjustable Time-Delay Relays
ICMAdjustable Time-Delay Relays

ICM Time Delay Relay: Off Delay, Fan Blower Control, 12 sec to 390 sec, 18 to 30V AC

The ICM ICM253B is an adjustable time-delay relay configured for off-delay operation, designed for fan blower control. It features a knob adjustment method for setting delays from 12 to 390 seconds, operates on 18 to…

SKU 3G-OTH-68283

Brand
ICM
Item
Time Delay Relay: Off Delay, Fan Blower Control, 12 sec to 390 sec, 18 to 30V AC
Category
Adjustable Time-Delay Relays
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

ICM
Manufacturer Part Number
ICM253B
Type
Fan Blower Control, 12 sec to 390 sec, 1 A
AC
18 to 30V
Pins
4
Mounting Style
Surface
Adjustment Method
Knob

Technical Documents

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ICM Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The ICM ICM253B is an adjustable time-delay relay configured for off-delay operation, designed for fan blower control. It features a knob adjustment method for setting delays from 12 to 390 seconds, operates on 18 to 30V AC, and supports a 1 A rating. This surface-mount relay has 4 pins and is manufactured by ICM.

Frequently Asked Questions

What is the ICM ICM253B time delay relay used for?

The ICM ICM253B is an adjustable off-delay relay designed for fan blower control in HVAC systems. It uses a knob to set delays from 12 to 390 seconds, ensuring sequenced shutdown of blowers after the main equipment stops, improving energy efficiency and system protection.

What are the specifications of the ICM ICM253B?

The ICM ICM253B operates on 18 to 30V AC, supports a 1 A rating, and has 4 pins. It features a knob adjustment method for setting off-delay from 12 to 390 seconds. The relay is surface-mountable and manufactured by ICM. It is designed specifically for fan blower control applications.

Where to buy the ICM ICM253B worldwide?

3G Electric supplies the ICM ICM253B time delay relay to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this ICM relay to any country.

How to install the ICM ICM253B time delay relay?

Mount the ICM ICM253B on a clean, dry surface using its surface-mount design. Connect the 4 pins per the wiring diagram for off-delay fan blower control. Set the desired delay (12 to 390 seconds) using the knob. Ensure the supply voltage is 18 to 30V AC. Always follow local electrical codes and disconnect power before installation.

Used in

Common applications for ICM
HVAC system sequencing — ICM ICM102B time-delay relay for on-delay control of fans or compressors
Boiler burner ignition — ICM ICM1501 ignition transformer for oil-fired hot water and steam boilers
Voltage monitoring in industrial panels — ICM ICM492D line voltage monitor for single-phase equipment protection
OEM furnace replacement — ICM ICM288 furnace control board for Rheem integrated furnace systems
Temporary construction heating — ICM ACH065 low-voltage thermostat for heat-only control in temporary structures
Blower off-delay control — ICM ICM253B time-delay relay for fan blower shutdown sequencing

ICM Products

3G Electric supplies ICM adjustable time-delay relays. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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