When you're choosing parts for relays, contactors, and industrial switches, a limit switch tells a machine when a moving part has reached a position. The decision between two similar limit switches usually comes down to whether you already have a part number in hand or you need the electrical specs to do the matching for you. Two options close in price are the Cutler-Hammer 10316 H89A Precision Limit Switch and the Square D 9007-CO3 Industrial Basic Snap Action Limit Switch. Both have the United States as country of origin, but they differ in how much application detail they give you. The Cutler-Hammer is listed at $55.99; the Square D is listed at $52.89, a $3.10 spread.
Quick Verdict
Pick the Square D 9007-CO3 when you want to see more of the electrical spec spelled out before ordering. Pick the Cutler-Hammer H89A when a precision limit switch with that part numbering is the direction your control setup is already going.
At a Glance
| Model | Price | Key Specs |
| Cutler-Hammer 10316 H89A Precision Limit Switch | $55.99 | Precision limit switch; new; US origin; MPN 10316-H89A / 10316H89A / H89A |
| Square D 9007-CO3 Industrial Basic Snap Action Limit Switch | $52.89 | Commercial snap action; 10A 600VAC; DPDT-DB double-break Form ZZ; AWG 22-14; brown housing/black plunger; new open box; US origin |
The practical difference is that the Square D spells out the electrical details, while the Cutler-Hammer centers on the precision switching role and part identity. If you are replacing a known H89A, the Cutler-Hammer is the direct route; if you are specifying a fresh installation, the Square D gives you more to check against your system.
Where Each Switch Wins
Cutler-Hammer H89A: This one is framed around precision switching, with accurate and consistent switching performance called out. If H89A is the part number in your drawing, this is the matching pick.
Square D 9007-CO3: This one puts more application detail in front of you, so you can see whether the switch fits your setup before you order. That makes it the easier spec to work from.
Product Notes
Cutler-Hammer 10316 H89A Precision Limit Switch
If your machine needs repeatable position feedback, this switch is built around precision switching. The spec describes accurate and consistent switching performance, which is exactly the behavior a precision limit switch should deliver. It is listed as new, and the multiple MPN forms-10316-H89A, 10316H89A, and H89A-make it easy to see that all of those part-number variations name the same item. The trade-off is price: this is the higher-priced option in the pairing. If H89A is the part number your equipment expects, that price gets you the direct Cutler-Hammer match rather than a substitute.
Square D 9007-CO3 Industrial Basic Snap Action Limit Switch
The Square D 9007-CO3 is the switch to pick when you want the electrical picture before you wire the part in. It is labeled for commercial applications, rated at 10A and 600VAC, and configured as DPDT-DB (double pole double throw, double break) Form ZZ. The AWG 22 to AWG 14 wire range gives you a clear wiring target, and the brown housing with black plunger gives you an easy visual reference during installation. The limitation to keep in mind is the condition: it is listed as new open box, meaning the box has been opened. For many installations, an open-box switch is completely usable, but the packaging will not be sealed-new.
Final Choice by Use Case
- Choose the Cutler-Hammer 10316 H89A Precision Limit Switch when your control scheme points to an H89A part and you want a direct precision-switch match.
- Choose the Square D 9007-CO3 Industrial Basic Snap Action Limit Switch when the electrical spec and wire range need to line up with your job before you order.
