Overview
The Square D 2510-KO2 is a Type K series manual motor switch designed for straightforward on/off control of single or three-phase AC motors where overload protection is not required or is provided separately. This three-pole, 30A switch operates at 600 VAC and 230 VDC with horsepower ratings of 10 hp at 460/575 VAC, 7.5 hp at 230 VAC, and 1.5 hp at 230 VDC. The open enclosure design fits standard single-gang switch boxes for flexible installation in industrial control panels or machine-mounted applications.
Key Features
- 3-Pole Configuration: Non-reversing toggle operation for manual control
- Compact Size: 1.69 in W × 2.34 in D × 4.12 in H dimensions
- Multiple Voltage Support: Rated for 600V AC and 230V DC operation
- Wide Horsepower Range: Suitable for motors from 1.5 hp to 10 hp depending on voltage and phase
- Screw Clamp Terminals: Accepts 14 to 10 AWG copper wire
- Global Certifications: UL Recognized and CSA Certified
Technical Specifications
- Amperage Rating: 30 A continuous
- Operating Voltage (AC): 600 VAC maximum
- Operating Voltage (DC): 230 VDC maximum
- Poles: 3 (three-pole)
- Control Type: Non-reversing toggle manual switch
- Enclosure Type: Open (fits standard single-gang switch box)
- Terminal Type: Screw clamp
- Wire Size Compatibility: 14 to 10 AWG copper
- Dimensions: 1.69 in W × 2.34 in D × 4.12 in H
- Pilot Light: None
- Series: 2510 (Square D manual starters and switches)
Typical Applications
Type K switches are suitable for use with three-phase AC motors rated up to 20 hp, with compact construction and 600 V rating making these switches suitable for a wide range of industrial and commercial uses. Common applications include:
- Pump and blower motor control in HVAC systems
- Machine tool spindle manual starters
- Resistance heating load control
- Industrial machinery with separate overload protection
- Retrofit and replacement installations in legacy control panels
Compatibility & Replacements
Compatible With
- Single-phase AC motors (up to 2 HP at 115/230 VAC depending on configuration)
- Three-phase AC motors (up to 10 HP at 460/575 VAC)
- DC motors (up to 1.5 HP at 230 VDC)
- Standard single-gang electrical switch boxes and wall-mount enclosures
- Resistance heating loads requiring manual control without overload protection
- External thermal overload relays and protective devices
Replaces / Drop-In Replacement For
The 2510-KO2 directly replaces other Square D Type K 3-pole 30A manual switches in the 2510 series. Verify compatibility with your system integrator before ordering to ensure voltage, pole configuration, and terminal type match your original installation.
Works With
- Square D 2510 Series: Type K, Type F, Type M, and Type T manual starters and switches
- Enclosure Standards: NEMA 1 general purpose enclosures, IP20 industrial switch boxes
- Certifications & Standards: UL, CSA, CE, and NLRV compatible for global installations
- Control Networks: Local manual control; does not include programmable logic or networked interfaces




