Description

MTL 8612‑FT‑NA 16‑Channel Non‑Arcing Field Terminal Base

Technical Specifications

• Product Model: 8612‑FT‑NA
• Brand: MTL
• Warranty: One Year
• Input Voltage: Max 250 VAC terminal rating; no internal power consumption, passive wiring assembly
• Operating Temperature: ‑40 °C to +70 °C
• Storage Temperature: ‑45 °C to +85 °C
• Response Time: Not applicable (passive terminal hardware)
• Protection Class: IP20, DIN‑rail carrier‑mount; ATEX Zone 2 IIC T6 / Class I Div 2 Groups A‑D T6 approved cabinet‑installation
• Accuracy Class: Passive signal routing, no signal conversion
• Output Frequency: Not applicable
• Rated Current Range: 5 A per‑channel continuous; accepts 0.5‑2.5 mm² (20‑14 AWG) instrument cables
• Communication Interface: Dual high‑density module mating connectors; screw‑clamp field terminals; labelling tag strip included
• Supported Protocols: Passive interface for PAC8000 16‑channel non‑IS I/O modules
• Overload Capacity: Non‑arcing construction; mechanical anti‑mismatch keying; no built‑in electronic protection
• Dimensions: 42 mm × 168 mm × 37 mm, PAC8000 standard footprint

Product Overview

The 8612‑FT‑NA is a snap‑on 16‑channel non‑arcing field terminal base for PAC8000 remote‑I/O system, designed for 16‑point non‑intrinsically‑safe I/O modules such as 8142‑DO‑DC. It provides screw‑clamp field‑wiring termination and mechanical‑electrical mating with I/O modules mounted above the terminal base. Non‑arcing design permits live hot‑swap of I/O modules inside Zone 2 / Div 2 hazardous‑area cabinets without spark risk.

This terminal base solves remote‑I/O deployment challenges: consolidated 16‑point field‑cable termination, safe online module replacement, and drop‑in spare compatibility for PAC8000 remote nodes. Integrated mechanical key‑coding prevents mismatched IS‑module installation onto non‑IS terminal hardware. Automation engineers, oil‑gas pipeline‑station technicians and hazardous‑area retrofit integrators benefit most. It snaps onto PAC8000 DIN‑rail carriers; terminals can be replaced independently without removing I/O electronics, reducing maintenance downtime for compressor‑stations, well‑sites and water‑treatment remote‑automation systems. (Word count:176)

Key Application Notes

• Passive terminal base; must pair with PAC8000 16‑channel non‑IS I/O modules; cannot run standalone
• Non‑IS hardware; must not be used with intrinsically‑safe IS‑series modules; IS modules require blue IS terminal bases like 8621‑FT‑IS
• Non‑arcing construction supports hot‑swap I/O module exchange while system remains powered online
• Mechanical key‑code prevents wrong‑module insertion; dedicated for 16‑channel I/O modules (not for 8‑channel modules like 8115‑DO‑DC which use 8610‑FT‑NA)
• Equipped with labelling strip for channel‑point identification; screw‑clamp terminals accept multi‑strand instrument wiring
• Only for Zone 2 / Div 2 cabinet‑mount; field‑side wiring must comply with local hazardous‑area installation standards
• Conformal‑coated carrier variants available for high‑humidity, high‑contaminant cabinet environments