# Wago 847-836 Test Disconnect Terminal Block with Automatic Current Transformer Short-Circuiting

**URL:** https://aio.lv/en/product--wago-847-836--12481486
**Data updated:** 2026-05-27 17:48 (EEST)
**Category:** Power Sockets
**Manufacturer:** Wago
**Manufacturer code:** 847-836
**EAN:** 4050821208501
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 267.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 221.07 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--wago-847-836--12481486

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.99 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

The Wago 847-836 is a specialized test disconnect terminal block designed for current transformer circuits. It features an integrated automatic short-circuiting mechanism for the secondary side, ensuring safety during maintenance and testing. This reliable component facilitates secure disconnection and measurement in industrial electrical installations, providing a robust solution for managing current transformer secondary circuits.

## Long description

The Wago 847-836 is a specialized test disconnect terminal block engineered specifically for current transformer (CT) circuits. This component provides a secure and efficient method for managing secondary circuits, featuring an integrated automatic short-circuiting mechanism that activates during disconnection. By ensuring the secondary side of the current transformer is safely short-circuited before the circuit is opened, this terminal block prevents dangerous high-voltage build-up, thereby protecting both personnel and equipment during maintenance and testing procedures.
Advantages
The primary benefit of this terminal block is the inherent safety provided by its automatic short-circuiting function, which eliminates the risk of open-circuit conditions that can damage current transformers. Its design simplifies the testing and calibration process by allowing for quick and reliable disconnection of measurement devices without the need for manual bridging. The robust construction ensures long-term reliability in demanding industrial environments, while the intuitive design reduces the potential for human error during complex electrical maintenance tasks.
Suitable for
Current transformer secondary circuit management
Industrial electrical testing and measurement
Calibration of energy meters and protection relays
Maintenance of power distribution systems
This terminal block may not be suitable for applications involving high-voltage primary circuits or non-standard current transformer configurations that require specific manual switching sequences not supported by the automatic mechanism. It is also not intended for use in environments exceeding the specified thermal or electrical ratings.
Key specifications
Function: Test disconnect with automatic short-circuiting
Application: Current transformer secondary circuits
Design: Integrated safety mechanism
Mounting: DIN-rail compatible
To use the Wago 847-836, mount the terminal block onto a standard DIN-rail within the control cabinet. Connect the current transformer secondary leads to the designated terminals. During routine testing or maintenance, the disconnect mechanism allows for the safe isolation of the measurement equipment. The automatic short-circuiting feature engages as the circuit is opened, ensuring the transformer remains protected throughout the entire operation.
What to consider before purchase
Verify that the current transformer secondary rating matches the terminal block specifications
Ensure sufficient space is available on the DIN-rail for installation
Confirm compatibility with existing measurement and protection equipment
Usage recommendations
Always verify that the short-circuiting mechanism is fully functional before performing any maintenance on the secondary circuit. Ensure that all connections are tightened to the manufacturer's specified torque to prevent overheating and contact resistance.

## FAQ

### How much does the Wago 847-836 Test Disconnect Terminal Block cost, and is it available for purchase?

The price is 267.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 09.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Wago 847-836 Test Disconnect Terminal Block be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Wago products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Wago service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12481486/68805669_large.webp