GE 8910-PS-DC 24V / 12V Industrial DC Power Supply

Description

Model: 8910-PS-DC 24V12VMTL (also referred simply as 8910-PS-DC)

• Brand / Series: MTL / Eaton / Crouse-Hinds (MTL 8000 legacy family)
• Product Type: System DC Power Supply Module
• Key Features:
  • Dual DC outputs (typically 24 V and 12 V) for industrial instrumentation
  • Designed for intrinsic safety / hazardous area systems (IS) and field applications
  • Wide input range (capable of DC or AC input variants)
  • Redundancy support, isolation, protective features, rugged industrial design

Product Role & System Fit

In process automation, particularly in hazardous or intrinsically safe environments, power budgeting and supply segmentation are critical. The 8910-PS-DC24V12VMTL module typically functions as a system power supply / DC module for instrument control systems, where field devices require 24 V DC or 12 V DC supply in segregated zones.

Within an MTL / 8000 I/O architecture (or similar instrument I/O carriers), this module provides the bussed field power (or “railbus” power) for I/O modules, barrier circuits, or intrinsically safe circuits that require regulated DC voltage. The dual output capability enables it to serve different voltage domains (e.g. logic / sensors at 12 V and control loops or 24 V field devices) from a single module.

Furthermore, many such modules are used in redundant configurations (e.g. two 8910 modules in parallel) so that if one fails, the system continues to operate without interruption. Indeed, MTL’s FAQ notes that for DC-powered nodes, two identical DC supply modules (8910-PS-DC) can be fitted to provide redundancy.

Because this module is tied to instrumentation and control networks, it’s often found in systems like safety logic cabinets, distributed field junction enclosures, and hazardous area I/O carriers.

Technical Features & Benefits

From the literature, here’s what we know about the 8910-PS-DC (24V / 12V variant) and related modules:

Known / Typical Characteristics

• The 8910-PS-DC is a DC power supply. Radwell lists it with 2.9 to 4.9 A output at 18–36 V DC input range.
• It is marked as discontinued in the MTL product line, as part of the legacy 8000 series power supplies.
• The output voltage is often listed as 12 V DC (±5 %) on MTL sites referring to “System power supply (8910-PS-DC)”
• Additional data from a Chinese reseller claims the 24V / 12V dual output variant:
  Input: 85–264 V AC or 110–300 V DC
  Output: 24 V DC at 5 A, 12 V DC at 8 A
  Total power ~ 192 W (120 W + 96 W)
  Efficiency ≈ 92%
  Protection: overvoltage, overcurrent, short-circuit, overtemperature
  Ambient range: -20 °C to +70 °C
  Certifications: CE, UL, TÜV etc. (per reseller description)

These features provide a strong base for practical benefits:

• Dual Output Convenience: Instead of separate power modules for 24 V and 12 V loads, this one module can supply both, saving panel space and simplifying wiring.
• Intrinsic Safety / Hazardous Area Compatibility: The 8910-PS-DC module is integral to instrument systems in zone / division rated areas due to its design for limited energy and safety compliance.
• Redundancy & Reliability: The ability to operate in redundant mode enhances system availability. If one unit fails, the other continues to supply power.
• Legacy System Support: As part of the MTL 8000 legacy line, this module enables long-term support of older I/O architectures, which remain common in many plants.
• Rugged Design: Built for industrial environments (temperature extremes, electrical noise, control cabinet duty cycles).

Technical Specifications

Here’s a compiled spec summary (some verified, some inferred). Always refer to the vendor’s original datasheet for absolute accuracy.

Applications & Industry Context

The 8910-PS-DC24V12VMTL is commonly used in process automation / distributed control systems (DCS), hazardous area instrumentation systems, and control panel power backbones. Some example uses:

• Feeding instrument I/O modules, barrier circuits, and field sensors in intrinsically safe zones
• Supplying logic power to control electronics (12 V domain) and field signaling devices (24 V domain) simultaneously
• Situations where reliability and redundancy are critical (e.g. chemical plants, oil & gas platforms, refinery control systems)
• Legacy systems needing continuation of MTL 8000 architecture, where replacement modules are scarce

Because the module is now officially discontinued (per MTL), many installations use it as a repair or spare part for existing systems rather than new greenfield designs.