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The ABB REJ601 BD446NN1XG is a compact overcurrent and earth-fault protection relay from ABB's Relion® 605 series, designed for feeder protection in utility substations and industrial power distribution networks. It provides essential protection functions without breaker control, ideal for secondary distribution systems with features like three-phase overcurrent, earth-fault detection, and disturbance recording.

Model ABBREJ601 BD446NN1XG

Type Overcurrent/Earth-fault protection relay

Current Inputs 4 × (1/5 A programmable)

Binary Inputs 8 configurable

Aux. Voltage 24–265 V AC/DC

Dimensions Compact press-fit frame (~140 × 90 mm)

Temperature Range -40°C to +70°C

Communication Modbus RTU or IEC 60870-5-103

Frequency 50/60 Hz user-selectable

Weight ~0.5 kg

Unpack and inspect the ABB REJ601 BD446NN1XG for damage; check environmental conditions.

Prepare panel cut-out for press-fit mounting (no loose accessories needed).

Press the relay firmly into the panel/switchgear until secure.

Connect CT wiring, binary I/O, and power terminals per diagram; ensure proper earthing.

Power up and configure settings via local HMI or PCM600 software; test functions.

De-energize before handling the ABB REJ601 BD446NN1XG to avoid shock or damage.

Use press-fit method only on compatible panels; avoid excessive force.

Verify CT polarity and ratios to prevent incorrect operation.

Bond sensor cable shields at relay side for noise immunity.

Monthly: Check LEDs and connections on ABB REJ601 BD446NN1XG for issues.

Quarterly: Clean with dry air; run self-tests via HMI.

Annually: Update firmware and review event logs.

Every 5 years: Perform secondary injection testing and calibration.

Do you provide global shipping services?

Yes. We have local distribution centers on all continents, which can quickly transport parts to any corner of the world.

2. What payment methods and currencies do you accept?

To make your purchasing process as simple as possible, we offer multiple payment methods including bank transfer, check, and PayPal. Meanwhile, we also accept most mainstream credit and debit cards, such as Visa, Mastercard, and American Express. We can accept payments in most major currencies worldwide, but we recommend using US dollars (USD), British pounds (GBP), or euros (EUR) as a priority. Payments in other currencies may incur additional fees. All transactions are securely processed by HSBC Bank and HSBC Merchant Services.

How many parts do you currently have in stock?

We have a vast inventory of thousands of new, refurbished, and outdated automation components, including products from well-known manufacturers such as ABB and Schneider. If you cannot find the required parts, please do not worry. We work closely with a global network of professional suppliers to provide you with tailored quotes even if the part is not listed on our website.

Who can I contact if I encounter any problems?

Our experienced customer service team will handle any issues after you place your order.