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Cutler Hammer KT3225T Series C Thermal-Magnetic Trip Unit for Compatible Molded Case Circuit Breakers
- Regular price
- $599.00
- Sale price
- $599.00
- Regular price
-
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Product Description P/N: KT3225T
Description
The Cutler Hammer KT3225T is a 225 A thermal-magnetic trip unit for compatible Series C molded case circuit breakers. It provides long-time overload and instantaneous short-circuit protection when installed in the appropriate three-pole breaker assembly.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Cutler Hammer |
| Category | Circuit Protection |
| Part Number | KT3225T |
| Subcategory | Circuit Breaker Trip Units |
| Manufacturer | Eaton |
| Product Family | Series C |
| Product Type | Molded case circuit breaker accessory trip unit |
| Rated Current | 225 A |
| Listed Voltage Rating | 600 VAC, subject to compatible breaker assembly ratings |
| Number of Poles | 3 |
| Frame Designation | J-K |
| Protection Technology | Thermal-magnetic |
| Trip Functions | Long-time and instantaneous; LI |
| Trip Type Code | T266 |
| Compatible Frame Types | Specified DK, KD, KDB, HKD, HKDDC, HKDB, KDC, CKD, CHKD, and KG configurations |
| Dimensions (H × W × D) | 5.3 × 4.3 × 6.9 in |
| Certification | UL Listed |
| Weight | 1.9 lb (0.86 kg) |
Information About KT3225T
The KT3225T is a Series C circuit breaker accessory designated for the J-K frame group. Its thermal and magnetic sensing elements operate the host breaker’s tripping mechanism when qualifying overcurrent conditions occur. It is intended for compatible breaker frame types, including specified DK, KD, KDB, HKD, HKDB, and KDC configurations. The unit supplies the protection function within the assembled breaker and requires a compatible frame for operation.
Key Features:
- 225 A Current Rating: Establishes the nominal current rating for the compatible breaker assembly.
- Thermal Overload Protection: Responds to sustained overcurrent through a thermal sensing element.
- Magnetic Short-Circuit Response: Provides instantaneous tripping under qualifying fault conditions.
- Three-Pole Configuration: Designed for installation in compatible three-pole breakers.
- Series C Compatibility: Supports the specified Eaton Cutler Hammer Series C breaker platform.
- J-K Frame Designation: Identifies the frame group listed for this trip unit.
- Accessory Construction: Provides a separate trip unit for assembly with a compatible breaker frame.
The KT3225T delivers the reliability and precision required for coordinated overload and short-circuit protection in compatible molded case circuit breakers.
Description
The Cutler Hammer KT3225T is a 225 A thermal-magnetic trip unit for compatible Series C molded case circuit breakers. It provides long-time overload and instantaneous short-circuit protection when installed in the appropriate three-pole breaker assembly.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Cutler Hammer |
| Category | Circuit Protection |
| Part Number | KT3225T |
| Subcategory | Circuit Breaker Trip Units |
| Manufacturer | Eaton |
| Product Family | Series C |
| Product Type | Molded case circuit breaker accessory trip unit |
| Rated Current | 225 A |
| Listed Voltage Rating | 600 VAC, subject to compatible breaker assembly ratings |
| Number of Poles | 3 |
| Frame Designation | J-K |
| Protection Technology | Thermal-magnetic |
| Trip Functions | Long-time and instantaneous; LI |
| Trip Type Code | T266 |
| Compatible Frame Types | Specified DK, KD, KDB, HKD, HKDDC, HKDB, KDC, CKD, CHKD, and KG configurations |
| Dimensions (H × W × D) | 5.3 × 4.3 × 6.9 in |
| Certification | UL Listed |
| Weight | 1.9 lb (0.86 kg) |
Information About KT3225T
The KT3225T is a Series C circuit breaker accessory designated for the J-K frame group. Its thermal and magnetic sensing elements operate the host breaker’s tripping mechanism when qualifying overcurrent conditions occur. It is intended for compatible breaker frame types, including specified DK, KD, KDB, HKD, HKDB, and KDC configurations. The unit supplies the protection function within the assembled breaker and requires a compatible frame for operation.
Key Features:
- 225 A Current Rating: Establishes the nominal current rating for the compatible breaker assembly.
- Thermal Overload Protection: Responds to sustained overcurrent through a thermal sensing element.
- Magnetic Short-Circuit Response: Provides instantaneous tripping under qualifying fault conditions.
- Three-Pole Configuration: Designed for installation in compatible three-pole breakers.
- Series C Compatibility: Supports the specified Eaton Cutler Hammer Series C breaker platform.
- J-K Frame Designation: Identifies the frame group listed for this trip unit.
- Accessory Construction: Provides a separate trip unit for assembly with a compatible breaker frame.
The KT3225T delivers the reliability and precision required for coordinated overload and short-circuit protection in compatible molded case circuit breakers.
