Allen-Bradley
Rockwell 1797-TB3 Allen Bradley Flex Ex, I/O Terminal Base Module, New
In stock, ready to ship
Manufacturer: Allen-Bradley
Product No.: 1797-TB3
Product Type: Terminal Base
Product Origin: USA
Payment: T/T
Weight: 1000g
Shipping port: Xiamen
Warranty: 12 months
Yes, we provide a 30-day money-back guarantee for all purchases.
Yes, all items come with a 12-month warranty from the date of shipment.
Allen-Bradley 1797-TB3
FLEX Ex Screw-Clamp Terminal Base Unit
Product Description
The Allen-Bradley 1797-TB3 is a screw-clamp terminal base unit designed for use with the FLEX Ex I/O system in intrinsically safe environments. It facilitates reliable, modular wiring and secure mechanical mounting for FLEX Ex I/O modules. The unit is certified for use in hazardous areas and supports a wide range of environmental and operational requirements typical of the process industries.
- Series: FLEX Ex
- Terminal Type: Screw-cage
- Mounting: DIN rail or panel mount
Technical Specifications
| Attribute | Specification |
|---|---|
| Terminal Configuration | 1 row of 16, 2 rows of 18 (36 terminals total) |
| Terminal Type | Screw-cage |
| Terminal Torque | 0.8…1.0 Nm (7…9 lb·in) |
| Wire Size | Up to 4 mm² (12 AWG) stranded |
| Maximum Insulation Diameter | 1.2 mm |
| Flexbus Interface | Intrinsically safe: Ui <10 V DC, Ii <400 mA, Ci <1 nF, Li negligible |
| Other IS Terminals | Ui <10 V DC, Ii <2.5 A, Ci <1 nF, Li negligible |
| Non-IS Terminals | Ui <30 V DC, Ii <100 mA, Ci <1 nF, Li negligible |
| Isolation Voltage | Determined by installed module |
| Dimensions (H×W×D) | 94 × 94 × 69 mm |
| Weight | Approximately 200 g |
Environmental Ratings
| Parameter | Value |
|---|---|
| Operating Temperature | –20 to +70 °C |
| Storage Temperature | –40 to +85 °C |
| Humidity | 5 to 95% non-condensing |
| Shock (Operating/Non-operating) | 15 g peak acceleration, 11 ms pulse |
| Vibration | 2 g at 10–500 Hz (per IEC 68-2-6) |
Certifications and Approvals
| Standard | Details |
|---|---|
| IECEx | Ex ia IIC T4 Gb (Certificate: IECEx BVS 08.0006X) |
| ATEX | II 2G Ex ia IIC Gb T4 (Certificate: DMT 98 ATEX E012 U) |
| UL, C-UL | Class I Div 1 Groups A–D; Class II Groups E–G |
| FM | Class I Div 1 Groups A–D, T4 (Certificate: FM 3009806) |
| INMETRO | BR-Ex ia IIC T4 (Certificate: 05/UL-BRAE-0019U) |