Overview
The Sprecher+Schuh CT1-150 CA1-60 is a robust two-component motor control assembly pairing a thermal overload relay with a definite-purpose contactor. This integrated solution delivers reliable electrical control for NEMA-rated motor circuits in industrial and commercial applications. The contactor is rated NEMA Size 3-1/2 with an 85 horsepower capacity at 480 volts.
Key Features
- Thermal overload protection via CT1-150 relay (100–150 AMP range)
- Definite-purpose contactor architecture for straightforward installation
- NEMA Size 3-1/2 classification for standardized mounting and replacement
- 480 V coil voltage for high-voltage industrial systems
- Compact, proven design used in manufacturing and utility applications
Technical Specifications
- Part Number: CT1-150 / CA1-60
- Manufacturer: Sprecher+Schuh
- NEMA Size: 3-1/2
- Horsepower Rating: 85 HP at 480 V
- Coil Voltage: 480 V
- Overload Relay Type: Thermal (CT1-150)
- Overload Amp Range: 100–150 AMP
- Product Type: Motor contactor with integral overload protection
- Configuration: 3-pole
- Mounting: DIN rail or panel-mount compatible
- Operating Temperature: Ambient -20°C to +60°C (typical industrial range)
Typical Applications
- Three-phase motor control in pumps, fans, and compressors
- HVAC system motor starters
- Machine tool and production line motor circuits
- Utility and water treatment motor control panels
- General industrial motor switching and overload protection
Compatibility & Replacements
Compatible With
- 480 V, 3-phase, 60 Hz industrial motor circuits
- Standard NEMA control systems (Size 3-1/2 footprint)
- DIN rail and panel-mount electrical enclosures
- Three-phase induction motors rated 85 HP and below
Replaces / Drop-In Replacement For
- Other Sprecher+Schuh CA1-60 assemblies
- NEMA Size 3-1/2 contactors with 85 HP, 480 V ratings
- Motor starters combining similar contactor and overload configurations
Works With
- Sprecher+Schuh control coils and auxiliary contacts
- Thermal overload heaters rated 100–150 AMP
- Standard three-phase power distribution (480 V, 60 Hz)
- Manual and automatic motor control circuits
