UsedAutomations — TESTED SURPLUS & OBSOLETE CONTROLS

1 actual photo shown first. Reference images are model-matched and must be confirmed before purchase.

GE

531X305NTBANG1

Terminal Board, NTB/3TB, RS-232C/RS-422, A-Quad-B encoder

GE

From $2,533.29In stockDiscontinued

Product Description

This NTB/3TB terminal board is designed for GE AC/DC2000 drive systems and provides versatile I/O interfacing for control and feedback. It supports RS-232C and RS-422 serial communications and includes provisions for A-Quad-B encoder inputs with noise‑filtered power supply outputs. The board offers configurable supply options to accommodate +5 V and ±15 V rails, with unregulated input options of 24 VDC or 125 VAC depending on system configuration. Analog tachometer input scaling covers a broad 25–380 V range, enabling integration with various tach sources. Connection to the drive control board is typically via 6PL and 8PL harnesses. This unit aligns with GE documentation set GEI‑100020B for installation and wiring guidance. Intended for technicians servicing GE 531X-series hardware, the board facilitates reliable terminal interfacing within the AC/DC2000 platform. Package contents are limited to the terminal board; consult system manuals for mating connectors and accessories.

Key Features

  • For GE AC/DC2000 systems

Buy Options

Condition, indicative price, stock, and lead time. Confirm current availability via RFQ.

New

Price: $6,672.06
Availability: 1 in stock
Lead time: Ships from stock

Never Used

Price: RFQ
Availability: Sourced on request
Lead time: Quoted after RFQ

Used

Price: $2,533.29
Availability: 175 in stock
Lead time: Ships from stock

Specifications

Manufacturer
GENERAL ELECTRIC
Model / Part Number
531X305NTBANG1
Alternate IDs
F31X305NTBANG1
Series
531X / AC/DC2000
Board Type
NTB/3TB Terminal Board
Configuration
A
Serial Interfaces
RS-232C, RS-422
Encoder Support
A-Quad-B
Analog Tachometer Input Scaling
25–380 V
Regulated Power Rails
+5 VDC and ±15 VDC
Unregulated Input Options
24 VDC or 125 VAC
Drive Connections
6PL and 8PL connectors
Original Manual
GEI-100020B
Weight
1 lb (AXControl) / 5 lb (Automation Industrial)
Part #
531X305NTBANG1
Category
Drives
Subcategory
Drive Board
Weight
1.00 lbs

Before we quote this part

Actual photos when available

Nameplate, condition, and visible wear can be shared before quote when stock photos are not enough.

Test notes for used units

Power-on or function test status is stated when available, with clear condition grading.

Trackable global shipping

DHL, FedEx, UPS, or forwarder options can be quoted with packing photos and tracking details.

Clear DOA boundary

For tested units, quote terms can include 7-day DOA support unless otherwise stated.

Independent sourcing disclaimer

We are not an authorized distributor, reseller, or representative of Siemens, Mitsubishi, Omron, or other manufacturers listed on this site. All product names, trademarks, brands, and logos are the property of their respective owners. Products may be used, refurbished, surplus, or sourced from the secondary market unless otherwise stated.

Need 531X305NTBANG1 availability?

Prices and stock can change. Submit quantity, required condition, and destination for a current quote.

Request Quote

FAQ

What systems is this board used with?

GE AC/DC2000 drives within the 531X platform

Which serial interfaces are supported?

RS-232C and RS-422

Does it accept encoder inputs?

Yes, A-Quad-B with noise-filtered supply outputs

What are the regulated supply rails?

+5 VDC and ±15 VDC

How does it connect to the control board?

Via 6PL and 8PL connectors per GE manual GEI-100020B