E100T15F Foxboro 15 VDC Power Supply Technical Manual

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Foxboro E100T15F Hazardous-Area DC Power Module Configured for power conversion in distributed control topologies, the Foxboro E100T15F (E100T15F Power Supply...

SKU: E100T15F

Manufacturer: Foxboro
Product No.: E100T15F
Product Type: Power Supply Modules
Product Origin: USA
Payment:T/T, Western Union
Weight: 2500g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Foxboro E100T15F Hazardous-Area DC Power Module

Configured for power conversion in distributed control topologies, the Foxboro E100T15F (E100T15F Power Supply Module) provides direct physical/electrical execution. The hardware accepts an unstable primary AC line input ranging from 95 to 265 VAC and rectifies it into a precision-regulated, low-ripple 15 VDC output block. Operating with a continuous current delivery ceiling of 100 A, the assembly routes low-noise excitation voltage directly across processing backplanes, analog field instruments, and downstream digital networks without requiring intermediate isolation elements.

Hardware Specifications

Parameter	Specification
Model	E100T15F
Brand	Foxboro
Origin	United States
Weight	2.5 kg
Dimensions	15.5 x 22.1 x 8.1 cm
Operating Temp	-40 to +70 deg C
Power Consumption	Generated via internal losses up to 15% (Minimum 85% conversion efficiency)
Input Voltage	95-265 VAC, 47-63 Hz single-phase
Output Voltage	15 VDC regulated
Maximum Output Current	100 A continuous
Enclosure Rating	IP66 dustproof and waterproof encapsulation
Signal Compatibility	4-20 mA instrumentation loops, HART instruments, Fieldbus devices
Internal Protection Loops	Overvoltage clamp, undervoltage cutoff, overcurrent foldback configuration
Mounting Setup	Direct structural wall mount or integrated physical pipe clamp assembly

Channel-to-Channel Isolation and DCS Backplane Control Interfacing

The internal architecture establishes a continuous galvanic barrier from input to output terminals, maintaining rigorous channel-to-channel isolation from primary field networks to backplane processing units. This structural isolation suppresses high-frequency power switching transients, preventing noise insertion onto the 4-20 mA HART loop protocol lines linked to critical process loops. The regulated 15 VDC rail layout supports balanced load arbitration across the chassis, filtering out potential common-mode voltage disruptions that cause signal distortion in nearby instrumentation lines or interrupt communication updates between distributed control modules.

Frequently Asked Questions

Q: How does the power supply handle persistent branch-circuit overcurrent faults at the maximum 100 A threshold?

A: The module internal monitoring loop tracks real-time current load profiles. When an output short-circuit or an overload condition exceeding 100 A occurs, the hardware enters an overcurrent foldback state, dropping the output voltage toward zero until the short-circuit is resolved, thereby preventing thermal damage to internal transformers.

Q: Can multiple E100T15F power supplies be wired directly in parallel to build a redundant N+1 configuration?

A: Direct parallel wiring for active current-sharing requires external high-power diode-ORing logic or a dedicated marshalling balancing circuit block. Connecting output terminals in parallel without load-sharing hardware can cause unequal internal thermal dissipation, reducing component lifespans.

Field Installation Guidelines

Shield Grounding and Enclosure Bonding Protocol: Connect the internal earth ground stud directly to the master plant instrument ground bus line using low-impedance copper conductors (< 1 Ohm resistance). Ensure the external IP66 metal enclosure is securely bonded to local structural steel to dissipate inductive surges and maintain structural noise filtering parameters.
Wiring Guages and Termination Integrity: All output branch wiring connected to the 15 VDC rail must use heavy-gauge conductors certified to carry up to 100 A without violating thermal expansion limits. Tighten all compression terminals to the specified torque limit to prevent high-resistance connection points from generating localized hot spots.
Hazardous Area Entry and Cable Sealing: Use only certified explosion-proof, flame-resistant NPT cable glands when routing input and output lines through the IP66 framework walls. Seal all unused conduit entry holes with approved hazardous-area blanking plugs to maintain enclosure integrity against moisture intrusion and chemical corrosion.

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