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The MZ6T series is applied for motor protection PTC Thermistor
Détails sur le produit:
| Lieu d'origine: | Dongguan, Guangdong, Chine |
| Nom de marque: | UCHI |
| Certification: | UL.VDE,SGS,REACH,CQC,CSA.ISO.ROHS,CUL |
| Numéro de modèle: | MZ6T |
Conditions de paiement et expédition:
| Quantité de commande min: | 1000 pièces |
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| Prix: | Négociable |
| Détails d'emballage: | en gros |
| Délai de livraison: | 5-7 JOURS |
| Conditions de paiement: | T/T, Paypal, Western Union, gramme d'argent |
| Capacité d'approvisionnement: | 5000,000,000PCS par mois |
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Détail Infomation |
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| Température de Curie PTC: | 115 ± 7°C | Temps de réponse: | Plage des millisecondes |
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| Tension du fil: | Tensions inférieures à 10 N, 10 S sans dommage | Caractéristiques: | Longue durée de vie |
| Tolérance de température de surface: | ±7 ℃ | Taper: | Thermistance à coefficient de température positif (PTC) |
| Puissance maximale: | 10mW | Diamètre: | 14 mm |
| Espacement des plombs: | 5 mm | Voltage de fonctionnement maximal: | 350 V |
| Épaisseur: | 2,5 mm max | ||
| Mettre en évidence: | motor protection PTC thermistor,MZ6T series PTC thermistor,PTC thermistor with warranty |
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Description de produit
MZ6T Series | PTC Thermistor Dedicated for Motor Protection
Product Overview
The MZ6T series is a wire-harness type PTC thermistor designed in accordance with international standards DIN 44081 / 44082, specially developed for over-temperature protection of motor windings and bearings. Embedded in the three-phase windings of motors, its resistance rises sharply when the temperature approaches the insulation class limit. Combined with a protector to cut off the power supply, it realizes rapid protection against overheating, overload and phase loss. It serves as a standard core temperature control component for industrial motors.
Working Principle
Low resistance at room temperature(R25 ≤ 100Ω / 300Ω), recognized as normal status by the protector;
When the motor overheats and the temperature reaches the operating temperature Tk, the resistance changes sharply to the kilo-ohm level;
Once the protector detects the high-resistance signal, it trips and shuts down immediately to prevent motor burnout;
The resistance automatically drops after cooling down. No replacement is required, and repeated use is available.
Core Features
✅ Standard Compliance: Compliant with DIN 44081/44082, compatible with mainstream temperature control modules (e.g. INT69);
✅ Ultra-compact Size: Chip size only 1.8×0.6 mm, easy to embed into windings without affecting insulation performance;
✅ Fast Response: Operates within ＜5 seconds under thermal overload or phase loss conditions, much faster than traditional thermal relays;
✅ Precise Temperature Control: Tk ranges from 60℃ to 180℃ (5℃ interval), tolerance ±5℃, perfectly matching motor insulation classes (Class B / F / H);
✅ Long-term Stability: Adopts ceramic substrate and insulated packaging, featuring vibration resistance, aging resistance and long service life;
✅ Flexible Installation: MZ6T adopts long lead wire harness design, suitable for winding embedding, bearing surface mounting and other working conditions.
Typical Applications
Industrial motors, water pump / fan motors, compressor motors;
Servo motors, stepping motors, new energy vehicle drive motors;
Transformers, reactors, high-power inductive coils;
Other electromagnetic equipment requiring overheating, overload and phase-loss protection.
Typical Electrical Parameters
| Item | Single-core (Type E) | Three-core Series (Type DS) |
|---|---|---|
| Operating Temperature Tk | 60～180℃ (5℃ step) | 60～180℃ (5℃ step) |
| Resistance at 25℃ (R25) | ≤100Ω | ≤300Ω |
| Resistance at Tk-5℃ | ≤550Ω | ≤1650Ω |
| Resistance at Tk+5℃ | ≥1300Ω | ≥4000Ω |
| Maximum Working Voltage | DC 25V | DC 25V |
| Response Time TD | ＜5s | ＜5s |
| Dielectric Strength | 2.5kV | 2.5kV |
Model Example
MZ6T-150-ES: Wire harness type, 150℃, single-core (suitable for Class B/F motors);
MZ6T-180-DS: Wire harness type, 180℃, three-core series connection (suitable for Class H motors).
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