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ABB tef4-off electronic timers
MPN: 1SBN020114R1000
Alt. SKU: TEF4-OFF
Special Price
£66.58
£55.48
Regular Price
£102.42
Why Choose the TEF4-OFF [1SBN020114R1000]
The TEF4-OFF is a front-mounted electronic timer designed to provide reliable time-delay functions while optimising cabinet space compared to separate timer units. It securely locks onto AF, AFC contactors or NF, NFC contactor relays, with a mechanical indicator clearly displaying the contactor status. The timer connects directly via a plug-in parallel connection to the contactor coil terminals A1 and A2, ensuring straightforward installation. An integrated varistor offers built-in surge protection for the contactor coil, enhancing system reliability. Compatible with a broad control voltage range of 24 to 240 V AC/DC, the TEF4 supports OFF-delay timing up to 100 seconds across three selectable time ranges. Time settings are configured using a rotary switch and range selector, independent of the control system. Activation occurs upon opening the associated device, with the OFF-delay function operating without the need for an additional control supply.
Technical Specification
- Function: OFF-delay electronic timer, activated by opening the mounted device, no additional control supply required.
- Voltage Range: 24 to 240 V AC/DC control voltage.
- Current Ratings: Rated operational current AC-15: 3 A (24/127 V), 1.5 A (220/240 V); DC-13: 1 A at 24 V.
- Contact Configuration: 2 poles with 1 normally open (NO) and 1 normally closed (NC) auxiliary contacts.
- Insulation & Impulse Ratings: Rated insulation voltage 400 V (IEC), 300 V (UL/CSA); rated impulse withstand voltage 4 kV.
- Degree of Protection: IP20 on auxiliary terminals.
- Terminal Type & Capacity: Screw terminals; flexible and rigid wiring from 0.5 to 2.5 mm².
- Mechanical Durability: Maximum mechanical switching frequency 1800 cycles per hour.
- Compatibility: Suitable for mounting on AF, AFC contactors and NF, NFC contactor relays series.
Trusted By Customers Worldwide
"Specified by UK panel builders for dependable control." Controls Engineer, UK
Frequently Asked Questions
What is the function of the TEF4-OFF timer?
The TEF4-OFF is an OFF-delay electronic timer that activates upon opening the device it is mounted on, requiring no additional control supply.
What is the voltage range for the TEF4 timer?
The TEF4 timer operates within a control voltage range of 24 to 240 V AC/DC.
What is the current rating for the TEF4 timer?
The rated operational current is 3 A at 24/127 V AC, 1.5 A at 220/240 V AC, and 1 A at 24 V DC.
What type of contact configuration does the TEF4 have?
The TEF4 features a contact configuration of 2 poles with 1 normally open (NO) and 1 normally closed (NC) auxiliary contact.
What is the degree of protection for the TEF4 timer?
The TEF4 timer has an IP20 degree of protection on the auxiliary terminals.
What is the cable capacity for the TEF4 timer's terminals?
The TEF4 timer's screw terminals can accommodate flexible and rigid wiring from 0.5 to 2.5 mm².
Is the TEF4 timer compatible with other devices?
The TEF4 timer is suitable for mounting on AF, AFC contactors and NF, NFC contactor relays series.
| Manufacturer Part Number | 1SBN020114R1000 |
|---|---|
| HS Code | 85364900 |
| Manufacturer | ABB |
| Country of Manufacture | China |
| Alternative Product SKU | TEF4-OFF |
| Inbuilt Aux | 1 N/O 1 N/C |
| Barcode | 3471523130654 |
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