Sprecher & Schuh CT7N-37-C21 Bimetallic overload relay 17.5-21.5 A (Pack 1)

Product Description

The Sprecher & Schuh CT7N-37-C21 is a bimetallic thermal overload relay that provides motor protection across a 17.5–21.5 A trip range. It mounts directly to CA7 series contactors and offers Class 10 time/current characteristics, ambient temperature compensation, and selectable manual or automatic reset. The unit includes an isolated NO signal contact and is suitable for DC applications and monitoring variable frequency drives, supporting single-phase differential tripping.

• Bimetallic thermal trip design with Class 10 characteristics and 17.5–21.5 A range
• Direct mount for CA7-30..37 contactors; calibrated at operating temperature
• Selectable manual or automatic reset with separate isolated NO signal contact

Product Highlights

Bimetallic overload relay for motor protection; direct mount to CA7 contactors; 17.5–21.5 A range; Class 10; selectable reset; isolated NO trip signal.

Product Information

Standard Information

• Brand: SPRECHER & SCHUH
• Manufacturer Part Number: CT7N-37-C21

Technical Specifications

• Brand: Sprecher & Schuh
• Manufacturer Part Number: CT7N-37-C21
• Series: CT7N
• Product Type: Bimetallic Overload Relay
• Current Range: 17.5 - 21.5 A
• Trip Class: Class 10
• Trip Design: Bimetallic thermal (differential tripping for single-phase protection)
• Mounting: Direct mount for CA7-30..37 contactors
• Reset: Selectable manual or automatic
• Signal Contact: Separate isolated normally open (NO) signal contact
• Applications: Motor protection, VFD monitoring, DC applications, conveyors, fans, pumps
• SKU: 2174293
• UNSPSC: 39122330