CNC JR28s-25 Thermal Overload Relay for Motor Control

CNC JR28s-25 Thermal Overload Relay

The CNC Electric JR28s-25 is a thermal overload relay for use in a correctly designed motor-control assembly with a compatible contactor. Its front-facing current-setting dial, STOP control and auxiliary terminals provide an accessible interface for installation and maintenance.

Visible Product Details

• Brand: CNC Electric
• Model shown: JR28s-25
• Device type: Thermal overload relay, not a magnetic contactor
• Adjustment: Front current-setting dial; exact adjustment range must be checked on the supplied unit
• Controls: Red STOP button and reset control; M/AUTO selector visible in an angled photo
• Auxiliary terminals: 97–98 marked NO and 95–96 marked NC in the supplied photographs
• Main terminal labels: 2/T1, 4/T2 and 6/T3
• Connection arrangement: Three upper connection pins visible

Choose the Correct Current Range

JR28s-25 is a model designation and does not by itself establish a fixed 25 A setting. Select the relay's actual adjustment range to suit the motor and manufacturer requirements. The contactor ratings previously supplied, from 12 A to 160 A, are not specifications for this relay.

Installation and Compatibility

Have a qualified electrician verify the exact current range, trip class, operating voltage, reset behaviour, auxiliary contact ratings and compatibility with the intended contactor from the manufacturer's datasheet. No universal compatibility with every CJX2s contactor is claimed. The contactor and mounting accessories are not confirmed as included.

Install and set only according to manufacturer instructions and applicable electrical requirements. Overload protection does not replace required short-circuit or residual-current protection. Confirm the supplied unit's ratings before purchase and installation.