Marley QMKMPDS25 3-Pole Power ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$371.29
Marley QMKMPDS25 3-Pole Power Disconnect Switch

Marley QMKMPDS25 3-Pole Power Disconnect Switch

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Model: MPDS25

In Stock (leaves warehouse same day if ordered before 3pm ET)

$371.29
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Marley QMKMPDS25 3-Pole Power Disconnect Switch

The Marley QMKMPDS25 is a 3-pole power disconnect switch designed to provide a dependable point of electrical isolation for equipment and circuits in commercial and industrial settings. Built around a straightforward 3-pole configuration, this disconnect allows electricians and maintenance personnel to safely de-energize connected loads before service, inspection, or repair work begins. As part of the Marley electrical product line, the QMKMPDS25 is intended for use by qualified professionals who require a reliable disconnect solution as part of a larger electrical distribution or equipment installation. Specifying the correct disconnect ahead of a piece of equipment or a branch circuit is a routine part of planning a safe, code-conscious electrical layout, and the QMKMPDS25 is built to fill that role in the Marley lineup.

Key Features

  • 3-Pole Configuration: The QMKMPDS25 disconnect switch is configured with three poles, supporting multi-conductor circuit isolation in a single unit.
  • Power Disconnect Function: Designed to interrupt power to connected equipment, allowing for controlled shutdown and safe servicing of electrical loads.
  • Circuit Isolation Point: Provides a defined disconnect location that simplifies planning for equipment shutoff during maintenance, repair, or emergency situations.
  • Professional-Grade Application: Suited for use by licensed electricians and maintenance teams as part of routine electrical safety procedures.
  • Straightforward Installation Role: Functions as a dedicated disconnect point within an electrical distribution layout, ahead of the equipment or circuit it protects.
  • Marley Electrical Line: Backed by the Marley brand, a recognized name in electrical and building products distributed through professional supply channels.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Commercial and Industrial Electrical Installations
  • Equipment and Motor Disconnect Applications
  • Panelboard and Distribution Circuit Isolation
  • Electrical Maintenance and Service Shutoffs
  • New Construction and Retrofit Projects
  • Multi-Circuit Electrical Distribution Layouts

Why Marley?

Marley is a long-standing supplier of electrical components trusted by contractors and facility professionals for dependable performance. The QMKMPDS25 3-pole power disconnect reflects that same focus on straightforward, functional design for safe circuit isolation. Choosing Marley for this application means specifying a disconnect built to support code-conscious electrical work on commercial and industrial projects, whether the job is a new installation, a renovation, or a routine equipment swap that calls for a clean point of disconnect.

Product Specs

Product Type:
Disconnect Switch
Configuration:
3-Pole
Department:
Electrical
Product Group:
Power Distribution
list_batch:
MAR-20260910
Product Subgroup:
Safety Switches & Disconnects

Marley MPDS25 – Frequently Asked Questions

1) What is the Marley QMKMPDS25 disconnect switch used for?
The QMKMPDS25 is a 3-pole power disconnect switch that gives you a defined point to de-energize a piece of equipment or a branch circuit before service, inspection, or repair. It sits ahead of the load in the distribution layout, so maintenance staff can kill power at the equipment rather than walking back to a panel. It is a component for licensed electricians and maintenance teams, not a homeowner part.
2) Is the MPDS25 a 3-phase disconnect or single phase?
Three poles, so it switches three conductors in one throw. That is what a 3-phase load needs, and it also covers multi-conductor single-phase or multi-circuit isolation where you want all legs broken together. If your load only needs two conductors opened, a 3-pole unit still works, you simply leave a pole unused.
3) Does the QMKMPDS25 go with Marley MUH unit heaters?
Yes. The MPDS25 is carried as part of the Marley/Q-Mark heating accessory line, and it appears on the MUH Unit Heater Electrical Accessory submittal documentation along with the Q-Mark digital catalog. It is the disconnect option you spec alongside a unit heater so the heater has its own local shutoff for service.
4) Do I still need a disconnect at the panel if I install an MPDS25 at the heater?
The MPDS25 is a local, at-the-equipment disconnect. It does not replace branch circuit overcurrent protection at the panelboard, it supplements it by giving the service tech a lockable point of isolation within sight of the heater or equipment. Typical uses are equipment and motor disconnects, panelboard and distribution circuit isolation, and maintenance shutoffs.
5) What is the exact part number for this Marley disconnect?
Order it as MPDS25, the Q-Mark/Marley 3-pole power disconnect. You will also see it written QMKMPDS25 with the Q-Mark brand prefix; it is the same single-model item, no finish or size options to pick.
6) Can I add the MPDS25 to a unit heater that is already installed, or does it have to be ordered with the heater?
It works either way. The MPDS25 is a field accessory, so it suits new construction, retrofit work, and routine equipment swaps where the existing installation has no clean disconnect point. Follow the Marley installation, operation and maintenance instructions for the mounting and wiring sequence on the specific heater model.
How fast can I get the Marley MPDS25 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Marley MPDS25 come with a warranty?
Absolutely. The Marley MPDS25 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Marley MPDS25?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Marley MPDS25 from ZenSupply?
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