ABB SPACOM replaces REX615

Document: Wiring guidance provided for installation personnel.

Configuration Support Service: Configuration engineering support for REX615.

Cutting tool kit: a handheld cutter used to enlarge panel openings.

Installation bracket: Temporarily fix the connector for easy wiring.

Cover plate (only available when converting SPACOM 300 series to standard REX615).

4.2 Optional Ordering Items

Relion BIO Tester 610-611-615-620: Used for offline testing of REX615 relays.

Training: A one-day classroom training covering tool usage, modification processes, and pricing considerations.

4.3 Order Code Analysis

ABB provides two order codes for each SPACOM model:

Pre configured (suffix C): REX615 has been configured with logic and parameters according to the standard functions of the original SPACOM when it leaves the factory.

Without pre configuration (suffix N): REX615 is the default factory configuration, and users need to configure it themselves using PCM600.

For example, for SPAA 120 C, the order code is RRPSPAA120CREX615C (with pre configuration) or RRPSPAA120CREX615N (without pre configuration). Users should prioritize pre configured versions to save on-site debugging time.

In addition, the installation accessories have independent order codes:

Installation bracket (100 series): 1VFR100623E0001

Cutting tool kit (for SPACOM 100 and 300 series): 2RCA031784

Cutting head: 2RCA031786

Power supply unit: 2RCA032139

Battery charger: 2RCA032140

Backup battery: 2RCA031785

Cover plate (300 series): 1VFR100623A0001

Mechanical installation: modification of openings and use of brackets

The mechanical dimensions of SPACOM and REX615 are different. The former is mostly square panel openings, while REX615 has different widths and heights. Therefore, it is necessary to open and expand the doors or panels of the switchgear. The cutting tool kit provided by ABB is specifically designed for this purpose.

5.1 Instructions for using cutting tools

The cutting tool kit includes a battery powered power unit and a punching head (including punch and die). The operation steps are as follows:

Remove the existing SPACOM relay from the panel and retain the original opening.

According to the installation dimensions of REX615, align the mold of the cutting head with the original opening edge and determine the direction of the hole expansion (the most convenient direction can be chosen, such as expanding upwards or downwards).

Start the power unit, and the punching head completes a precise punching on the metal panel, capable of cutting up to 3.0mm thick steel plates.

The entire process does not require additional measurement or marking, nor does it require rust prevention treatment for the incision, as the punching process will not damage the surface coating.

This cutting method has the advantages of quietness, speed, no burrs, and precise size compared to traditional angle grinders or plasma cutting. ABB recommends replacing only the cutting head components during warranty claims, rather than the entire set of tools.

5.2 Temporary wiring assistance for installing brackets

After the mechanical opening is completed, installation brackets are required for actual wiring. The installation hole position of this bracket is consistent with the fixed hole position of the original SPACOM relay. Temporarily fix the bracket in its original position on the panel, and then plug the connector from the modified connector kit into the corresponding terminal of the bracket. In this way, construction personnel can remove the secondary wire from the original SPACOM terminal without carrying a relay and reconnect it according to the original terminal number marked on the connector. After the wiring is completed, remove the bracket. At this point, all secondary wires have been pre connected to the modified connector, and then plug the connector as a whole into the corresponding interface on the back of the REX615 relay.

5.3 Scenarios for the Use of Cover Plates

For SPACOM 300 series relays (such as SPAA 330 C), the panel opening size is larger than that of REX615 standard relays. At this point, a cover plate is needed to fill the excess gap. The cover plate order code is 1VFR100623A0001, installed between REX615 and the panel, providing a clean appearance and dust-proof seal.

Electrical Wiring: Exquisite Design for Transforming Connectors

The most time-saving part of the renovation plan is the modification of the connector kit. The connector (X100, X110, or X130) of this kit has the terminal number of the original SPACOM relay printed on the top. Users do not need to refer to the schematic diagram, they only need to remove the secondary wire inside the switchgear from the SPACOM terminal and connect it to the same numbered terminal on the connector.

6.1 Selection of connector types

Determine which connectors are needed based on the replaced SPACOM model. The document provides a detailed mapping table. For example:

SPAA 120 C: Requires X100 and X110 (i.e. two 24 pin connectors)

SPAA 341 C: Requires X100, X110, and X130 (two 24 pin and one 18 pin)

SPAM 150 C: Only X130 (normally open or normally closed version) is required

The connector is installed on the REX615 relay at the factory. But for the convenience of wiring, users can first unplug the connector from the relay and install it on the bracket for offline wiring.