Square D 8538SCASP Type S Fusi...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2,705.96
Square D 8538SCASP Type S Fusible Disconnect Combination Starter, NEMA Size 1

Square D 8538SCASP Type S Fusible Disconnect Combination Starter, NEMA Size 1

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Model: 8538SCASP5

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

$2,705.96
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Square D 8538SCASP Type S Fusible Disconnect Combination Starter, NEMA Size 1

The Square D 8538SCASP Type S nonreversing fusible combination starter integrates motor overload and short-circuit protection into a single NEMA Size 1 package rated 27A. This family is available with Motor FLA settings from 30A to 60A, letting you match the starter to your motor's full-load amperage while sharing the same 120VAC control platform and Motor Logic solid-state overload relay (SSOLR) design. Housed in a NEMA 3R/12 painted sheet steel enclosure for indoor and outdoor motor control applications, it is UL Listed and CSA certified for reliable industrial and commercial motor branch-circuit protection.

Key Features

  • Motor FLA Range: Available in 30A and 60A Motor FLA options to match your motor's full-load current requirement.
  • NEMA Size 1: Combination starter rated up to 10 HP at 460V AC, 3-phase, and up to 10 HP at 575V AC, 3-phase.
  • Line Rated Current: 27A rated current for motor branch-circuit protection.
  • Fusible Disconnect Switch: Type H and K fusible disconnect switch, 30A, electrical SPDT, for combined overload and short-circuit protection.
  • Motor Logic SSOLR: Solid-state Motor Logic overload relay, Class 10/20, 6-18A adjustable range.
  • Control Circuit: Separate control circuit with 120VAC coil (110V AC 50Hz / 120V AC 60Hz control voltage) and HAND-OFF-AUTO selector switch control.
  • Enclosure: NEMA 12 painted sheet steel enclosure with external reset, rated NEMA 3R/12.
  • Local Signaling: Red LED indicator (on) and green LED indicator (off) for local status feedback.
  • Poles: 3P configuration, non-reversing motor starter type.

Certifications & Compliance

  • UL Listed
  • CSA Certified
  • TAA Compliant
  • RoHS EU In Scope
  • Mercury Free

Technical Specifications

  • Voltage Rating: 600V
  • Amperage Rating: 27A
  • Country of Origin: Mexico
  • Warranty Period: 18 months
  • Nema Size: 1
  • Poles Description: 3P
  • Range Of Product: S
  • Control Circuit: separate control circuit
  • Compliance: TAA

Typical Applications

  • Industrial and Commercial Motor Control Systems
  • Motor Control Centers and Panelboard Integration
  • Building Automation Installations
  • Construction and OEM Panel Building
  • Indoor and NEMA 3R Outdoor-Rated Enclosures

Why Square D?

Square D Type S combination starters deliver reliable build quality for long mechanical life and electrical endurance, with a flexible Motor FLA range from 30A to 60A supporting multiple overload relay types. UL Listed, CSA certified, and TAA compliant, this Motor Logic-equipped starter streamlines installation, wiring, maintenance, and field modifications for industrial, commercial, and building automation applications.

Manufacturer Resources

Product Specs

Product Type:
Combination Starter
Series:
Type S
Voltage Rating:
600V
Amperage Rating:
27A
Configuration:
NEMA Size 1
Listing:
UL Listed
Country of Origin:
Mexico
Department:
Electrical
Product Group:
Motor Control & Automation
Product Subgroup:
Motor Starters & Contactors

Square D 8538SCASP5 – Frequently Asked Questions

1) What horsepower motor will a NEMA Size 1 Square D Type S combination starter run?
Up to 10 HP at 460V AC three-phase, and up to 10 HP at 575V AC three-phase. The device is rated 600V with a 27A line rated current, 3-pole. If your motor is larger than 10 HP at those voltages you need a Size 2 starter instead.
2) Can this Square D fusible combination starter be mounted outdoors?
Yes. The 8538SCASP is housed in a painted sheet steel enclosure rated NEMA 3R/12, so it handles outdoor rain-tight duty as well as indoor dust and dripping-liquid environments. Reset is external, so you don't have to open the door to clear an overload trip.
3) Do I still need a separate disconnect and fuses ahead of this starter?
No. The 8538SCASP includes a fusible disconnect switch, Type H and K fuses, 30A, which gives you the local disconnecting means and short-circuit protection in the same enclosure as the contactor and overload relay. You supply the fuses sized for the branch circuit; the switch itself is 30A.
4) My motor pulls 22 amps full load. Which Motor FLA version do I order?
Neither directly at the overload, and that is the part to check first. The Motor Logic overload relay in the 8538SCASP adjusts 6 to 18A, and the unit is 27A line rated, so a 22A full-load motor is above the overload's adjustment band. Match the starter to a motor whose nameplate FLA falls inside 6 to 18A, or step up to a larger NEMA size for bigger loads.
5) What is the closest alternative to the Square D 8538SCASP Type S combination starter from another manufacturer?
The Eaton Freedom series ECN1611EAB is an enclosed combination non-reversing starter in NEMA Size 1 for 3-phase motors, which puts it in the same size class and non-reversing configuration as the Square D 8538SCASP Type S. The main difference is protection and enclosure: the 8538SCASP uses a Type H and K fusible disconnect switch with a Motor Logic solid-state overload relay in a NEMA 3R/12 painted sheet steel enclosure, so it can be mounted outdoors, while the Eaton ECN1611EAB is supplied in a NEMA 1 enclosure for indoor dry locations only. Confirm the overload setting suits your motor full-load amps either way.
6) I need a Size 1 combination starter for an outdoor pump. Is the Eaton ECN1611EAB or the Square D 8538SCASP the right choice?
For an outdoor location, the Square D 8538SCASP Type S is the one built for it - it ships in a painted sheet steel enclosure rated NEMA 3R/12, which covers rain and falling dirt outdoors as well as indoor dusty areas. The Eaton Freedom ECN1611EAB is a NEMA 1 enclosed unit, an indoor general-purpose rating, so it would need to be installed inside a separate weatherproof housing to serve the same duty. Both are Size 1 non-reversing starters for 3-phase motors.
7) What overload relay is in the Square D 8538SCASP, and what is its adjustment range?
It uses the Square D Motor Logic solid-state overload relay (SSOLR), selectable Class 10 or 20, adjustable 6 to 18A. Set the dial to the motor's nameplate FLA within that band. Because it is solid state rather than a bimetal or melting-alloy block, there are no heater elements to order separately.
8) What control voltage and pilot devices come with this starter?
The 8538SCASP has a separate control circuit with a 120VAC coil (110V AC at 50Hz / 120V AC at 60Hz) and a factory-installed HAND-OFF-AUTO selector switch on the cover. Local status is shown with a red LED for run and a green LED for off, so you can see state without opening the door. The HAND-OFF-AUTO arrangement is what you want if a thermostat, float, or BAS contact will be driving the motor in AUTO.
9) Can this starter reverse a motor?
No. The Type S 8538SCASP is a non-reversing starter with a single 3-pole contactor, so it only runs the motor in one direction. For a reversing application you need a reversing combination starter with two interlocked contactors.
10) Is the Square D 8538SCASP acceptable for a federal or government-funded project?
Yes on the paperwork side: it is UL Listed, CSA certified, TAA compliant, RoHS EU in scope, and mercury free. Country of origin is Mexico, which is a TAA designated country. Those are the boxes most public agency and institutional specs ask you to tick.
11) What is a comparable NEMA Size 1 enclosed combination starter from another brand?
The Eaton Freedom NEMA 1 enclosed combination non-reversing starter, Size 1, 3-phase is the closest cross-brand equivalent we carry. Note the enclosure difference: the Eaton unit is a NEMA 1 enclosure, which is indoor general purpose only, while the Square D 8538SCASP is rated NEMA 3R/12 and can go outdoors or in a washdown-adjacent dusty area. If the starter is mounting outside, the Square D is the one that fits.
12) Does the Eaton Freedom ECN1611EAB include a fusible disconnect like the Square D 8538SCASP?
The Square D 8538SCASP Type S is specifically a fusible disconnect combination starter - it carries a 30A Type H and K fusible disconnect switch ahead of the contactor, so short-circuit protection comes from the fuses you install in it, paired with a Motor Logic solid-state overload relay rated Class 10/20 with a 6 to 18A adjustable range. The Eaton Freedom ECN1611EAB is catalogued as an enclosed combination non-reversing starter in Size 1 without a fusible disconnect called out, so if your branch-circuit design requires fuses in the starter enclosure, specify the Square D fusible unit.
13) Will a Size 1 starter from Eaton drop into the same footprint as the Square D 8538SCASP?
NEMA Size 1 defines the contactor and horsepower class, not the enclosure dimensions, so do not assume a bolt-for-bolt swap. The Square D 8538SCASP Type S is a Size 1 non-reversing combination starter in a NEMA 3R/12 painted steel enclosure rated 27A line current at 600V, with a 120VAC control circuit and HAND-OFF-AUTO selector. The Eaton Freedom ECN1611EAB is a Size 1 3-phase enclosed combination non-reversing starter in a NEMA 1 enclosure. Because the enclosure ratings differ, the housings differ in size and mounting pattern - lay out fresh mounting holes and re-check conduit entry when switching between them.
14) Our facility standard is TAA compliant electrical gear. Which Size 1 combination starter meets that?
The Square D 8538SCASP Type S is documented as TAA compliant, along with UL Listed, CSA certified, RoHS EU in scope, and mercury free, and it is made in Mexico. The Eaton Freedom ECN1611EAB is a comparable Size 1 3-phase enclosed combination non-reversing starter, but for a TAA-driven procurement spec the Square D Type S is the one with that compliance stated. Both are Size 1 non-reversing units, so the motor sizing logic is the same.
How fast can I get the Square D 8538SCASP5 delivered?
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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 8538SCASP5 come with a warranty?
Absolutely. The Square D 8538SCASP5 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 8538SCASP5?
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