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The MZ6T series is applied for motor protection PTC Thermistor
Detalhes do produto:
| Lugar de origem: | Dongguan,Guangdong,China |
| Marca: | UCHI |
| Certificação: | UL.VDE,SGS,REACH,CQC,CSA.ISO.ROHS,CUL |
| Número do modelo: | MZ6T |
Condições de Pagamento e Envio:
| Quantidade de ordem mínima: | 1000 unidades |
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| Preço: | Negociável |
| Detalhes da embalagem: | volume |
| Tempo de entrega: | 5-7 DIAS |
| Termos de pagamento: | T/T, Paypal, Western Union, grama do dinheiro |
| Habilidade da fonte: | 5000,000,000PCS pelo mês |
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Informação detalhada |
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| Temperatura de Curie PTC: | 115±7°C | Tempo de resposta: | Faixa de milissegundos |
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| Tensão do fio: | Tensão inferior a 10N, 10S sem danos | Características: | Vida longa |
| Tolerância à temperatura da superfície: | ±7℃ | Tipo: | Termistor de coeficiente de temperatura positivo (PTC) |
| Potência máxima: | 10mW | Diâmetro: | 14mm |
| Espaçamento de chumbo: | 5mm | Tensão de funcionamento máxima: | 350V |
| Espessura: | 2,5 mm máx | ||
| Destacar: | motor protection PTC thermistor,MZ6T series PTC thermistor,PTC thermistor with warranty |
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Descrição de produto
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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