Quick Take
When your panel calls for a control relay with eight normally closed contacts, the SQUARE D 8501 X080 is the lowest listed price in this set at USD 27.99. When the job is a reversing motor starter with an overload relay, the **AB 100-C09\*10 is the highest listed at USD 74.99. Between those two, the Square D 9007-CO3 limit switch and the A&B Industrial Relay 24V50/60Hz** cover different jobs: snap-action limit sensing and a 24V screw-terminal relay. Match the component type to your circuit first; price and condition then do the final sorting.
Listed Price Comparison
Listed prices run from USD 27.99 to USD 74.99, a USD 47.00 spread. The bar below shows where each option sits in that range.
| Product | Listed Price | Price Bar | Role |
|---|---|---|---|
| SQUARE D 8501 X080 Industrial Control Relay 8NC 12P 10A Total 120/110V Coil | USD 27.99 | 8NC industrial control relay | |
| Square D 9007-CO3 Industrial Basic Snap Action Limit Switch 10A 600VAC | USD 52.89 | Snap-action limit switch | |
| A&B Industrial Relay 24V50/60Hz Elec Cl Screw Terminals Bifurcated Gold Pltd | USD 43.98 | Screw-terminal relay | |
| AB 100-C09*10 Reversing motor starter Contactor 1.6/5A overload relay 120V Coil | USD 74.99 | Reversing motor starter with overload relay |
Decision Matrix
| Circuit Need | Pick This Option | Keep in Mind |
|---|---|---|
| NEMA-style control relay with a bank of normally closed contacts | SQUARE D 8501 X080 | Used condition; all eight contacts are N.C. |
| Position or limit sensing with a snap-action switch | Square D 9007-CO3 | New - Open box; DPDT-DB contact config |
| Reversing motor starter with an overload relay | AB 100-C09*10 | Used; overload range is 1.6/5A |
| 24V relay with screw terminals and bifurcated gold-plated contacts | A&B Industrial Relay | New - Open box; contact arrangement not listed |
Product Notes
SQUARE D 8501 X080 Industrial Control Relay 8NC 12P 10A Total 120/110V Coil
This is the lowest-priced option in the set and the only unit described as an 8-pole industrial control relay with all eight contacts normally closed. This is a heavy-duty NEMA relay with a 10 A continuous thermal current rating, and the base can be expanded up to 12 poles. If your circuit needs a large group of N.C. contacts without paying for extra contact blocks, this is the most direct fit. The trade-off is condition: it is a used unit, with minor cosmetic wear from handling or installation noted. Because every included contact is N.C., it will not cover a normally open requirement on its own.
Square D 9007-CO3 Industrial Basic Snap Action Limit Switch 10A 600VAC
This Square D unit is a limit switch, not a relay or contactor, so it is the right pick when the input is mechanical motion rather than a coil signal. It is listed as New - Open box, with a DPDT-DB contact configuration, a 10 A current rating at 600VAC, and compatibility with AWG 22 to AWG 14 wire. The brown housing with black plunger matches the basic snap-action form. The limitation is that the listed application is commercial, and there is no coil to energize-the plunger does the work. If you need a traditional relay, this switch is not that.
AB 100-C09*10 Reversing motor starter Contactor 1.6/5A overload relay 120V Coil
The Allen Bradley unit is the most expensive in the group, and it is also the only reversing motor starter: it bundles the contactor with a 1.6/5A overload relay and a 120V coil, plus the connector wire between the contactors. The model is 193-EA1EB and the part number is 100-C09D10. This is the one to consider when you need to reverse a motor and want the overload relay included rather than added later. The limitation is that it is a used unit, and the overload range is narrow-1.6 to 5A-so it fits a specific motor current band, not a wide range of motor sizes.
A&B Industrial Relay 24V50/60Hz Elec Cl Screw Terminals Bifurcated Gold Pltd
This A&B relay is a New - Open box option at USD 43.98. It uses a 24V 50/60Hz coil and has screw terminals plus bifurcated gold-plated contacts, which is a useful combination for a panel that needs straightforward wiring and corrosion-resistant contact surfaces. The part number is 700-CFB310EJ. It suits a 24V AC control circuit where you want a screw-terminal relay. The main limitation is the New - Open box condition; you also need a 24V 50/60Hz supply because the coil is rated for that.
Final Recommendation
For a lower-priced relay job with many N.C. contacts, choose the SQUARE D 8501 X080. For a limit switch task, choose the Square D 9007-CO3. For a reversing motor starter with overload protection, choose the AB 100-C09*10. For a 24V screw-terminal relay, choose the A&B Industrial Relay. All four are different component types, so the right pick depends on whether your circuit is driven by a coil, a mechanical plunger, or a motor-reversing scheme.
