![[MITSUBISHI ELECTRIC] — TH-N400RH / TH-N400HZ Thermal Overload Relay (105-330A, N400 Frame)](https://img.prosourcemro.com/2026/08/MSTN_photo_TH_1-1.png)
Thermal Overload Relays
MITSUBISHI ELECTRIC
[MITSUBISHI ELECTRIC] — TH-N400RH / TH-N400HZ Thermal Overload Relay (105-330A, N400 Frame)
Family ID: MEL-TH-N400
Mitsubishi Electric TH-N400RH / TH-N400HZ thermal overload relay for MS-T/N series magnetic contactors and starters, n400 frame, heater designations 105-330A. 2-element type for overload protection, KP 3-element (2E) type for combined overload and open-phase protection. Manual reset standard (auto-reset AR type available to order); auxiliary contact 1a1b. Compliant with JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4.
24 product codes available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| TH-N400RH 105A | TH-N400RH thermal relay, 105A heater, 2-element | Mitsubishi Electric | Frame: N400 · Type: Thermal Overload Relay · Elements: 2-element · Protection: Overload · Heater: 105A (adjustable 85-125A) · Mounting: For magnetic starter combination · Reset: Manual (standard) · Aux Contact: 1a1b · Standards: JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4 | ||
| TH-N400RH 125A | TH-N400RH thermal relay, 125A heater, 2-element | Mitsubishi Electric | Frame: N400 · Type: Thermal Overload Relay · Elements: 2-element · Protection: Overload · Heater: 125A (adjustable 100-150A) · Mounting: For magnetic starter combination · Reset: Manual (standard) · Aux Contact: 1a1b · Standards: JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4 | ||
| TH-N400RH 150A | TH-N400RH thermal relay, 150A heater, 2-element | Mitsubishi Electric | Frame: N400 · Type: Thermal Overload Relay · Elements: 2-element · Protection: Overload · Heater: 150A (adjustable 120-180A) · Mounting: For magnetic starter combination · Reset: Manual (standard) · Aux Contact: 1a1b · Standards: JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4 | ||
| TH-N400RH 180A | TH-N400RH thermal relay, 180A heater, 2-element | Mitsubishi Electric | Frame: N400 · Type: Thermal Overload Relay · Elements: 2-element · Protection: Overload · Heater: 180A (adjustable 140-220A) · Mounting: For magnetic starter combination · Reset: Manual (standard) · Aux Contact: 1a1b · Standards: JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4 | ||
| TH-N400RH 250A | TH-N400RH thermal relay, 250A heater, 2-element | Mitsubishi Electric | Frame: N400 · Type: Thermal Overload Relay · Elements: 2-element · Protection: Overload · Heater: 250A (adjustable 200-300A) · Mounting: For magnetic starter combination · Reset: Manual (standard) · Aux Contact: 1a1b · Standards: JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4 | ||
| TH-N400RH 330A | TH-N400RH thermal relay, 330A heater, 2-element | Mitsubishi Electric | Frame: N400 · Type: Thermal Overload Relay · Elements: 2-element · Protection: Overload · Heater: 330A (adjustable 260-400A) · Mounting: For magnetic starter combination · Reset: Manual (standard) · Aux Contact: 1a1b · Standards: JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4 | ||
| TH-N400HZ 105A | TH-N400HZ thermal relay, 105A heater, 2-element | Mitsubishi Electric | Frame: N400 · Type: Thermal Overload Relay · Elements: 2-element · Protection: Overload · Heater: 105A (adjustable 85-125A) · Mounting: Standalone mounting · Reset: Manual (standard) · Aux Contact: 1a1b · Standards: JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4 | ||
| TH-N400HZ 125A | TH-N400HZ thermal relay, 125A heater, 2-element | Mitsubishi Electric | Frame: N400 · Type: Thermal Overload Relay · Elements: 2-element · Protection: Overload · Heater: 125A (adjustable 100-150A) · Mounting: Standalone mounting · Reset: Manual (standard) · Aux Contact: 1a1b · Standards: JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4 | ||
| TH-N400HZ 150A | TH-N400HZ thermal relay, 150A heater, 2-element | Mitsubishi Electric | Frame: N400 · Type: Thermal Overload Relay · Elements: 2-element · Protection: Overload · Heater: 150A (adjustable 120-180A) · Mounting: Standalone mounting · Reset: Manual (standard) · Aux Contact: 1a1b · Standards: JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4 | ||
| TH-N400HZ 180A | TH-N400HZ thermal relay, 180A heater, 2-element | Mitsubishi Electric | Frame: N400 · Type: Thermal Overload Relay · Elements: 2-element · Protection: Overload · Heater: 180A (adjustable 140-220A) · Mounting: Standalone mounting · Reset: Manual (standard) · Aux Contact: 1a1b · Standards: JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4 | ||
| TH-N400HZ 250A | TH-N400HZ thermal relay, 250A heater, 2-element | Mitsubishi Electric | Frame: N400 · Type: Thermal Overload Relay · Elements: 2-element · Protection: Overload · Heater: 250A (adjustable 200-300A) · Mounting: Standalone mounting · Reset: Manual (standard) · Aux Contact: 1a1b · Standards: JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4 | ||
| TH-N400HZ 330A | TH-N400HZ thermal relay, 330A heater, 2-element | Mitsubishi Electric | Frame: N400 · Type: Thermal Overload Relay · Elements: 2-element · Protection: Overload · Heater: 330A (adjustable 260-400A) · Mounting: Standalone mounting · Reset: Manual (standard) · Aux Contact: 1a1b · Standards: JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4 | ||
| TH-N400RHKP 105A | TH-N400RHKP thermal relay, 105A heater, 3-element 2E | Mitsubishi Electric | Frame: N400 · Type: Thermal Overload Relay · Elements: 3-element (2E) · Protection: Overload + Open-phase · Heater: 105A (adjustable 85-125A) · Mounting: For magnetic starter combination · Reset: Manual (standard) · Aux Contact: 1a1b · Standards: JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4 | ||
| TH-N400RHKP 125A | TH-N400RHKP thermal relay, 125A heater, 3-element 2E | Mitsubishi Electric | Frame: N400 · Type: Thermal Overload Relay · Elements: 3-element (2E) · Protection: Overload + Open-phase · Heater: 125A (adjustable 100-150A) · Mounting: For magnetic starter combination · Reset: Manual (standard) · Aux Contact: 1a1b · Standards: JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4 | ||
| TH-N400RHKP 150A | TH-N400RHKP thermal relay, 150A heater, 3-element 2E | Mitsubishi Electric | Frame: N400 · Type: Thermal Overload Relay · Elements: 3-element (2E) · Protection: Overload + Open-phase · Heater: 150A (adjustable 120-180A) · Mounting: For magnetic starter combination · Reset: Manual (standard) · Aux Contact: 1a1b · Standards: JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4 | ||
| TH-N400RHKP 180A | TH-N400RHKP thermal relay, 180A heater, 3-element 2E | Mitsubishi Electric | Frame: N400 · Type: Thermal Overload Relay · Elements: 3-element (2E) · Protection: Overload + Open-phase · Heater: 180A (adjustable 140-220A) · Mounting: For magnetic starter combination · Reset: Manual (standard) · Aux Contact: 1a1b · Standards: JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4 | ||
| TH-N400RHKP 250A | TH-N400RHKP thermal relay, 250A heater, 3-element 2E | Mitsubishi Electric | Frame: N400 · Type: Thermal Overload Relay · Elements: 3-element (2E) · Protection: Overload + Open-phase · Heater: 250A (adjustable 200-300A) · Mounting: For magnetic starter combination · Reset: Manual (standard) · Aux Contact: 1a1b · Standards: JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4 | ||
| TH-N400RHKP 330A | TH-N400RHKP thermal relay, 330A heater, 3-element 2E | Mitsubishi Electric | Frame: N400 · Type: Thermal Overload Relay · Elements: 3-element (2E) · Protection: Overload + Open-phase · Heater: 330A (adjustable 260-400A) · Mounting: For magnetic starter combination · Reset: Manual (standard) · Aux Contact: 1a1b · Standards: JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4 | ||
| TH-N400HZKP 105A | TH-N400HZKP thermal relay, 105A heater, 3-element 2E | Mitsubishi Electric | Frame: N400 · Type: Thermal Overload Relay · Elements: 3-element (2E) · Protection: Overload + Open-phase · Heater: 105A (adjustable 85-125A) · Mounting: Standalone mounting · Reset: Manual (standard) · Aux Contact: 1a1b · Standards: JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4 | ||
| TH-N400HZKP 125A | TH-N400HZKP thermal relay, 125A heater, 3-element 2E | Mitsubishi Electric | Frame: N400 · Type: Thermal Overload Relay · Elements: 3-element (2E) · Protection: Overload + Open-phase · Heater: 125A (adjustable 100-150A) · Mounting: Standalone mounting · Reset: Manual (standard) · Aux Contact: 1a1b · Standards: JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4 | ||
| TH-N400HZKP 150A | TH-N400HZKP thermal relay, 150A heater, 3-element 2E | Mitsubishi Electric | Frame: N400 · Type: Thermal Overload Relay · Elements: 3-element (2E) · Protection: Overload + Open-phase · Heater: 150A (adjustable 120-180A) · Mounting: Standalone mounting · Reset: Manual (standard) · Aux Contact: 1a1b · Standards: JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4 | ||
| TH-N400HZKP 180A | TH-N400HZKP thermal relay, 180A heater, 3-element 2E | Mitsubishi Electric | Frame: N400 · Type: Thermal Overload Relay · Elements: 3-element (2E) · Protection: Overload + Open-phase · Heater: 180A (adjustable 140-220A) · Mounting: Standalone mounting · Reset: Manual (standard) · Aux Contact: 1a1b · Standards: JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4 | ||
| TH-N400HZKP 250A | TH-N400HZKP thermal relay, 250A heater, 3-element 2E | Mitsubishi Electric | Frame: N400 · Type: Thermal Overload Relay · Elements: 3-element (2E) · Protection: Overload + Open-phase · Heater: 250A (adjustable 200-300A) · Mounting: Standalone mounting · Reset: Manual (standard) · Aux Contact: 1a1b · Standards: JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4 | ||
| TH-N400HZKP 330A | TH-N400HZKP thermal relay, 330A heater, 3-element 2E | Mitsubishi Electric | Frame: N400 · Type: Thermal Overload Relay · Elements: 3-element (2E) · Protection: Overload + Open-phase · Heater: 330A (adjustable 260-400A) · Mounting: Standalone mounting · Reset: Manual (standard) · Aux Contact: 1a1b · Standards: JIS C8201-4-1, IEC 60947-4-1, EN 60947-4-1, GB 14048.4 |
