Dongguan Ampfort Electronics Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 1KKPCS Per Month |
| Delivery Time | 2-4 Weeks |
| Packaging Details | Bulk,1pcs per box,24pcs per carton |
| Name | Block Varistor |
| Varistor Voltage | 4700V |
| VAC | 2800V |
| VDC | 3500V |
| Rated power | 1.5W |
| Surge current | 70KA |
| Max. energy | 10000J |
| Operating temperature | -40℃ ~ +85℃ |
| Brand Name | CNAMPFORT |
| Model Number | MYE70-472F |
| Certification | UL,ROHS |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | T/T | Supply Ability | 1KKPCS Per Month |
| Delivery Time | 2-4 Weeks | Packaging Details | Bulk,1pcs per box,24pcs per carton |
| Name | Block Varistor | Varistor Voltage | 4700V |
| VAC | 2800V | VDC | 3500V |
| Rated power | 1.5W | Surge current | 70KA |
| Max. energy | 10000J | Operating temperature | -40℃ ~ +85℃ |
| Brand Name | CNAMPFORT | Model Number | MYE70-472F |
| Certification | UL,ROHS | Place of Origin | CHINA |
| High Light | Railway Signal System Block Varistors ，70KA Block Varistors ，4700V Block Varistors | ||
Heavy Duty Block Varistors MYE70-472F 4700V 70KA As Transient Surge Suppressors For Railway Signal System
The MYE Series transient surge suppressors areheavy-duty industrial Metal-Oxide Varistors (MOVs)designed to provide surge protection for motor controls andpower supplies used in oil-drilling, mining, transportationequipment and other heavy industrial AC line applications.These varistors have similar package construction but differin size and ratings. MYE Series feature improved creep andstrike capability to minimize breakdown along the packagesurface, a package design that provides complete electricalisolation of the disc subassembly, and rigid terminals toensure secure wire contacts.
The MYE varistor is the 1 varistor series designed for heavy-duty industrial electrical products with high surge withstand requirements and poor working environment. They consist of a larger diameter zinc oxide varistor and a flame retardant housing. Internal potting flame retardant insulation explosion-proof material together, can provide transient surge protection capability. It has a reliable terminal and is used for automatic industrial equipment, power control, power transmission, communication equipment, water supply systems, petroleum equipment, mining equipment, railway signal systems, etc.
Heavy-duty varistors (surge current capability up to 100 kA)
Wide operating voltagerange
Rigid terminals for securewire contact
Case design providescomplete electrical isolationof disc subassembly
High energy absorptioncapability WTM
No derating up to 85ºCambient
It has a reliable lead and is widely used in automatic industrial equipment, power control, power transportation, communication equipment, water supply systems, petroleum equipment, mining equipment, railway signal systems, etc. Structural characteristics and packaging method: -I resistance structure: The pressure -sensitive resistance with high -strength threaded pores is installed in a flame retardant plastic shell; All conform to UL94V -0;
| Technical data | ||
| Climatic Category | 40/85/56 | in accordance with IEC 68-1 |
| LCT | - 40°C | |
| UCT | +85°C | |
| Damp Heat, Steady State (93% r.h., 40°C) | 56 days | in accordance with IEC 68-2-3 |
| Operating Temperature | -40 … +85°C | in accordance with CECC 42 000 |
| Storage temperature | -40 … +110°C | |
| Electric strength | ≥ 2.5 kV | in accordance with CECC 42 000 |
| Insulation Resistance | ≥ 1.0 GΩ | in accordance with CECC 42 000 |
| Response Time | < 25 ns | |
| Max. torque | 1.0 Nm | |
Some Ampfort Varistor Cross Reference List
| AMPFORT | MAIDA | Littelfuse | PANASONIC (ZNR) | Epcos (SIOV) |
| MYE70-201 | V131BA60 | B60K130 | ||
| MYE70-241 | V151BA60 | B60K150 | ||
| MYE70-271 | V171BA60 | B60K175 | ||
| MYE70-331 | V211BA60 | B60K210 | ||
| MYE70-361 | V231BA60 | B60K230 | ||
| MYE70-391 | V251BA60 | B60K250 | ||
| MYE70-431 | V271BA60 | B60K275 | ||
| MYE70-471 | V301BA60 | B60K300 | ||
| MYE70-511 | V321BA60 | B60K320 | ||
| MYE70-621 | V381BA60 | B60K385 | ||
| MYE70-681 | V421BA60 | B60K420 | ||
| MYE70-751 | V461BA60 | B60K460 | ||
| MYE70-781 | V481BA60 | B60K485 | ||
| MYE70-821 | V511BA60 | B60K510 | ||
| MYE70-911 | V551BA60 | B60K550 | ||
| MYE70-951 | V581BA60 | B60K575 | ||
| MYE70-102 | V621BA60 | B60K625 | ||
| MYE70-112 | V681BA60 | B60K680 | ||
| MYE70-122 | V751BA60 | B60K750 | ||
| MYE70-142 | V881BA60 | B60K880 | ||
| MYE70-182 | V102BA60 | B60K1000 | ||
| MYE70-222 | V142BB60 | |||
| MYE70-272 | V172BB60 | |||
| MYE70-332 | V202BB60 | |||
| MYE70-392 | V242BB60 | |||
| MYE70-472 | V282BB60 |
| AMPFORT | MAIDA | Littelfuse/Harris | PANASONIC(ZNR) | Epcos(SIOV) |
| MYE100-201 | B80K130 | |||
| MYE100-241 | B80K150 | |||
| MYE100-271 | B80K175 | |||
| MYE100-331 | B80K210 | |||
| MYE100-361 | B80K230 | |||
| MYE100-391 | B80K250 | |||
| MYE100-431 | B80K275 | |||
| MYE100-471 | B80K300 | |||
| MYE100-511 | B80K320 | |||
| MYE100-621 | B80K385 | |||
| MYE100-681 | B80K420 | |||
| MYE100-751 | B80K460 | |||
| MYE100-781 | B80K485 | |||
| MYE100-821 | B80K510 | |||
| MYE100-911 | B80K550 | |||
| MYE100-951 | B80K575 | |||
| MYE100-102 | B80K625 | |||
| MYE100-112 | B80K680 | |||
| MYE100-122 | B80K750 | |||
| MYE100-142 | B80K880 |
Series: MYE30, Cat. Nos. MYE30-201, MYE30-241, MYE30-271, MYE30-331, MYE30-361, MYE30-391, MYE30-431, MYE30-471, MYE30-511, MYE30-621, MYE30-681, MYE30-751, MYE30-781, MYE30-821, MYE30-911, MYE30-951, MYE30-102, MYE30-112, MYE30-122, MYE30-142, MYE30-162, maybe followed by A, B or C.
Series: MYE40, Cat. Nos. MYE40-201, MYE40-221, MYE40-241, MYE40-271, MYE40-331, MYE40-361, MYE40-391, MYE40-431, MYE40-471, MYE40-511, MYE40-561, MYE40-621, MYE40-681, MYE40-751, MYE40-781, MYE40-821, MYE40-911, MYE40-951, MYE40-102, MYE40-112, MYE40-122, MYE40-142, MYE40-162, maybe followed by A, B or C.
Series: MYE70, Cat. Nos. MYE70-201, MYE70-241, MYE70-271, MYE70-331, MYE70-361, MYE70-391, MYE70-431, MYE70-471, MYE70-511, MYE70-561, MYE70-621, MYE70-681, MYE70-751, MYE70-781, MYE70-821, MYE70-911, MYE70-951, MYE70-102, MYE70-112, MYE70-122, MYE70-142, MYE70-162, MYE70-182, MYE70-222, MYE70-272, MYE70-332, MYE70-392, MYE70-472, maybe followed by D, E, F or G
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Exporter
Year Established:
2014
Total Annual:
1850000-2340000
Employee Number:
51~200
Ecer Certification：
Verified Supplier
Dongguan Ampfort Electronics Co., Ltd. is a high-tech enterprise specializing in R&D, manufacturing and sales, committed to becoming a comprehensive supplier of circuit protection components. We introduced advanced quality system,management systems and high-precision automation equipm... Dongguan Ampfort Electronics Co., Ltd. is a high-tech enterprise specializing in R&D, manufacturing and sales, committed to becoming a comprehensive supplier of circuit protection components. We introduced advanced quality system,management systems and high-precision automation equipm...
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