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Media gallery
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Star-delta circuit breaker / Star-delta timer relay
- Regular price
- €28,00 €22,95 excl. VAT
- Regular price
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- Sale price
- €28,00 €22,95 excl. VAT
- Unit price
- per
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- Description
- Instructions
- Payment methods
- Warranty
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Star-delta starting mode relays (electric motor starting relays) operating voltage 24/220 V AC, indication of ON, STAR, DELTA, STAR mode time setting. POWER SUPPLY, ERV-YU. It is known that for a smooth and soft start of the electric motor, it is necessary first to start it according to the STAR scheme and after a certain time, upon reaching the set speed, switch the motor windings to DELTA mode. This switching scheme ensures a lower starting current, which increases the electric motor's lifespan and the stability of the entire power supply system.
The switching of STAR-DELTA modes can naturally be done with a switch, but when using contactors (starters) and a starting relay, it is better to automate this process.
For controlling such contactors, TENSE offers star-delta relays or, as they are also called, star-delta switching relays - ERV - YU. When the operating voltage is applied to the A1 - A2 contacts of the ERV - YU relay, the STAR output is connected to the Faz contact, the STAR indicator lights up, and the acceleration interval t1 (0.1 ... 30 s) starts counting down. After the acceleration interval t1, the STAR and Faz outputs are disconnected, the STAR indicator turns off, and the pause interval t2 (15 ms) starts counting down. At the end of the connection interval t2, the Faz and TRIANGLE contacts are connected, the TRIANGLE indicator lights up, and the activation relay remains in this state as long as an alarm is applied to the A1 - A2 contacts.
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If you need activation relays, contactors with mechanical interlock, stand-alone mechanical interlock, or a quality metal enclosure with IP65 protection, all these products can be purchased from our warehouse at an affordable price.
Online card payment: after completing your order, you will be redirected to the payment gateway, and payment confirmation will be sent to your email.
COD: you pay the amount due for the order to the transport company’s driver upon delivery.
By bank transfer – you will receive a pro forma invoice at your email address no later than the next business day. It will include the account number to enter when making the payment.
On invoice: this payment option is available to partners who have signed a framework agreement with our company.
If you wish to use either of the last two methods, call our manager, who will provide instructions on how to receive an invoice with or without VAT.
The electrical devices we supply meet high quality standards, come with a 24-month warranty, and comply with all EU requirements.
We also offer free shipping on orders over €200. We have a flexible system of discounts and promotions. The technical knowledge and experience of our employees enable us to provide high-quality advice and, when necessary, offer alternatives to electrical products.
The electrical equipment we provide meets high quality standards, is covered by a 24-month warranty, and complies with all EU requirements.
In case of a complaint, the return of the goods is not charged.
