Square D TeSys GS Switch Disco...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2,005.79
Square D TeSys GS Switch Disconnector-Fuse, 3-Pole

Square D TeSys GS Switch Disconnector-Fuse, 3-Pole

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Model: GS2MU3N

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

$2,005.79
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Square D TeSys GS Switch Disconnector-Fuse, 3-Pole

The Square D TeSys GS Switch Disconnector-Fuse is a fused disconnect switch for motor circuit isolation and short-circuit protection. This 3-pole (3P) unit is rated 750V with up to 200A thermal current, sized for motor loads up to 100 kW at 400V AC-23. It uses UL Class J fuse links up to 200A, giving panel builders, OEMs, and contractors a compact, code-ready solution for motor branch-circuit protection.

Key Features

  • Pole Configuration: 3-pole (3P) design suited to three-phase motor disconnect applications.
  • Electrical Rating: Rated 750V with an Ith thermal current of 200A at 40°C.
  • Fuse Compatibility: Accepts UL Class J fuse links up to 200A for coordinated overcurrent protection.
  • Motor Duty Rating: Suitable for motor loads up to 100 kW @ 400V, 140 kW @ 500V, and 185 kW @ 690V (AC-23).
  • External Operating Handle: Uses an external front side mounting operating handle (GS2AH series), lockable with a door interlock.
  • Short-Circuit Performance: High short-circuit protection performance up to 100 kA thanks to fast fuse-speed fusion.
  • Ingress Protection: IP20 degree of protection per IEC 60529 with terminal cover installed.
  • Terminal Connections: Power circuit lugs/ring terminals accept 16-152 mm² conductors, tightened to 8.5 N.m.

Certifications & Compliance

  • UL98 Listed
  • CSA C22.2 No. 4 Compliant
  • RoHS EUR Compliant

Technical Specifications

  • Toxic Heavy Metal Free: Yes
  • Mercury Free: Yes
  • Packaging Without Single Use Plastic: No
  • Sustainable Packaging: No
  • Tier Id: 2
  • ROHS Eur In Scope: Yes
  • Recycled Metal Content At Cr Level: 0 %
  • Poles Description: 3P
  • China ROHS Label: 1
  • Protected Poles Description: 3t
  • Serviceability: No
  • With Recycled Cardboard: Yes
  • WEEE Product Category: 5
  • WEEE Scope: In
  • China ROHS In Scope: No
  • Fuse Type: UL
  • Return Indicator: Y
  • WEEE Applicability: Finished product
  • Take Back: No
  • Tier: 2
  • Returnability: Yes
  • Field Service Division: PPIBS
  • Carbon Footprint: 463.525704453442

Typical Applications

  • Motor Control Centers and Motor Branch Circuits
  • Industrial Machinery Disconnect Switching
  • OEM and Panel Builder Control Panels
  • Commercial and Industrial Electrical Installations
  • Coordinated Fuse Protection for Motor Loads

Why Square D?

Square D's TeSys GS switch-disconnector-fuse delivers dependable, code-compliant motor circuit protection backed by UL98 and CSA C22.2 No. 4 compliance and high short-circuit performance up to 100 kA. With a lockable external operating handle and coordinated Class J fuse protection, it provides the reliability panel builders and electrical contractors expect from Square D for demanding industrial and commercial motor applications.

Manufacturer Resources

Product Specs

Product Type:
Disconnect Switch
Series:
TeSys GS
Configuration:
3-Pole
Voltage Rating:
750V
Amperage Rating:
200A
Standards:
UL98
Department:
Electrical
Product Group:
Power Distribution
Product Subgroup:
Safety Switches & Disconnects

Square D GS2MU3N – Frequently Asked Questions

1) What fuses does the Square D TeSys GS GS2MU3N fused disconnect take?
The GS2MU3N accepts UL Class J fuse links up to 200A. It is a fused switch-disconnector, so the fuses are what provide the short-circuit protection, and the body is rated 200A thermal current (Ith) at 40 degrees C. Class J fuses are not dimensionally interchangeable with Class CC, R, or T bodies, so order Class J links sized to your motor branch circuit.
2) What size motor will a 200A TeSys GS fused disconnect handle?
Rated for motor loads to 100 kW at 400V, 140 kW at 500V, and 185 kW at 690V under AC-23 duty. AC-23 is the switching category for motor loads, so those figures are usable directly for a three-phase motor branch circuit rather than being a resistive-load rating.
3) Is the Square D TeSys GS switch-disconnector UL listed for use in a service disconnect panel build?
The GS2MU3N is UL98 Listed and compliant with CSA C22.2 No. 4, and it is RoHS EUR compliant. UL98 is the enclosed and dead-front switch standard panel builders and inspectors look for on a disconnect. It is rated 750V.
4) Is the TeSys GS GS2MU3N enclosed, or does it need to go in a cabinet?
It is an open, panel-mounted device with IP20 protection per IEC 60529 once the terminal cover is fitted. IP20 means finger-safe against solids but no water protection at all, so it has to be installed inside an enclosure or control panel. If you need a standalone enclosed disconnect, this is the wrong format.
5) Can I use the Eaton DHR5 handle on the Square D TeSys GS disconnect?
No. The Eaton DHR5 is a direct handle for Eaton R9 Series rotary disconnect switches and is not an operating means for the Square D TeSys GS. The GS2MU3N uses an external front-side mounting operating handle from the Square D GS2AH series, which is lockable and provides the door interlock. Order the GS2AH handle for the TeSys GS and keep the DHR5 with the Eaton rotary switches it belongs to.
6) What is the difference between the Square D GS2MU3N and the Eaton R5A3016U rotary disconnect?
Both are three-pole disconnect switches, but they protect differently. The Square D TeSys GS GS2MU3N is a switch-disconnector-fuse rated 750V and 200A that accepts UL Class J fuse links up to 200A, so the switch and the branch-circuit short-circuit protection live in one device. The Eaton R5A3016U is a non-fusible three-pole rotary disconnect rated 600V, which isolates only and relies on separate upstream overcurrent protection. If the drawing calls for fused disconnection at the motor, the GS2MU3N covers it; if the panel already has a breaker feeding the circuit and you only need a lockable isolation point, the non-fusible R5 is the simpler device.
7) I only need to disconnect a small 30A control circuit, not a 100 kW motor. Is there a smaller fused disconnect than the GS2MU3N?
Yes. The Square D TeSys GS GS2MU3N is sized for three-phase motor loads up to 100 kW at 400V with 200A Class J fuse links, which is far more switch than a small control branch needs. For a 30A single-phase branch, the Bussmann CCP2-1-30CC is a UL98 fusible disconnect switch rated 30A single-pole using Class CC fuses. Both carry UL98, so either satisfies a listed disconnect requirement; choose by pole count and fuse class the circuit actually calls for.
8) Which disconnect should I spec for a 690V three-phase machine feed?
The Square D TeSys GS GS2MU3N is the one of these rated for it. It is a 750V three-pole switch-disconnector-fuse suitable for motor loads up to 185 kW at 690V under AC-23 duty. The Eaton R5A3016U non-fusible rotary disconnect and the Bryant 30103D manual disconnect are both 600V devices, below a 690V system voltage. For a 690V machine feed, the 750V-rated TeSys GS with Class J fuses is the correct choice.
9) What conductor size will the TeSys GS 200A disconnect terminals accept?
Power circuit lugs and ring terminals take 16 to 152 mm2 conductors, torqued to 8.5 N.m. That upper end covers roughly 300 kcmil, so a 200A feeder with typical derating lands well inside the range. Use a torque wrench; these are ring/lug terminations, not screw clamps you can guess at.
10) What is the short-circuit withstand on the Square D TeSys GS fused disconnect?
Short-circuit protection performance runs up to 100 kA, achieved by the fast fusion of the fuse links rather than by the switch mechanism itself. That makes the fuse selection part of the coordination: the 100 kA figure depends on having the correct Class J links installed.
11) Can I use the Square D TeSys GS 750V disconnect on a 480V or 600V system?
Yes. The 750V rating is the maximum, so 480V and 600V three-phase systems are both inside it, and the motor duty table extends to 690V. If your system never exceeds 600V, a 600V-rated switch such as the Bryant 30103D 3-pole manual disconnect or the Eaton R5 Series is also within rating, though neither is fused the way the TeSys GS is.
12) Is a Bryant 30103D manual disconnect an equivalent replacement for a Square D GS2MU3N?
They are not interchangeable. The Bryant 30103D is a 103D Series 600V three-pole manual disconnect switch - a non-fused isolating switch. The Square D TeSys GS GS2MU3N is rated 750V with 200A thermal current and carries UL Class J fuse links up to 200A, so it provides short-circuit protection in addition to isolation. Swapping in the Bryant would remove the fuse protection from the branch and drop the voltage rating from 750V to 600V. Use the Bryant where a plain three-pole manual disconnect at 600V is what the circuit requires.
How fast can I get the Square D GS2MU3N 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 Square D GS2MU3N come with a warranty?
Absolutely. The Square D GS2MU3N 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 Square D GS2MU3N?
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
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