When evaluating industrial encoders, performance and dependability are the top priorities. The M6C-4S1HX51-T003 Avtron M6C incremental encoder stands out as a robust solution, offering stable signal output and long service life, even in demanding environments such as heavy machinery and automation systems. Its design reflects the balance between accuracy, durability, and ease of integration.
Replacement Solutions You Can Trust
We provide M6C-4S1HX51-T003 encoder replacement solutions manufactured with a specialized non-standard process while ensuring 1:1 parameter compatibility with the original product. This means the replacement can be seamlessly installed as a direct substitute, without adjustments or modifications to existing systems.


Features & Benefits
- Precision-matched parameters for direct interchangeability
- High reliability under continuous industrial operation
- Helps overcome procurement and lead-time challenges
- Real photos of the replacement solution available for verification
- Designed for industries that demand uninterrupted performance
Why Choose This Replacement?
Sourcing original Avtron encoders can sometimes be costly or involve long waiting times. Our alternative to the M6C-4S1HX51-T003 Avtron M6C incremental encoder delivers the same performance as the prototype model, providing a reliable, cost-effective option for businesses that cannot afford downtime in critical operations.
Introduction
Avtron M6C explosion protected ATEX and IECEx rated severe mill duty rotary encoders are designed for direct mounting on motor or load shafts, from 1" to 1 1/8" [25-30mm].
The M6C is an updated model which directly replaces the M6 encoder, and M6C adds IECEx certification. No barrier or isolator is required-mount M6C directly in any ATEX or IECEx Zone 1 application.
Why take a chance with weak optical encoders on your drilling rig? The M6C features Avtron Encoders' rugged magnetic sensor and solid metal rotor technology. Our shatterproof, moisture proof systems ensure your application has maximum uptime. The hollow shaft (tethered) models offer direct mounting on shafts from 1" to 1 1/8", without flanges, reducers, couplings, or other hardware. No rework is needed; just mount the encoder directly on the shaft, and secure the tether arm. The heavy duty bearings withstand runout and vibration that destroy lesser encoders.
M6C also includes a complete wiring protection system--it can survive all types of wiring errors and drive signals down the longest cables.
For more information on keeping your rotary encoders working in oil and gas applications, visit our oil and gas blog.
We believe explosion protected encoders should also be ready to withstand the rough drilling environment. Try the M6C today!
Parameters
Operating Power: Volts: 5-24 VDC; Current: 120mA, no load
Output Format: A, /A, B, /B; Optional Marker Z, /Z
Frequency Range: 0 to 250 kHz @ 6 V & 1 meter cable
PPR: 240-1200
Speed: 5000 RPM Max. Std.
Temperature: 80°C to -40°C (-40°C optional, -20°C standard)
Chemical: Polyurethane enamel paint protects against salt spray, mild acids, and bases
Enclosure Rating: IP66
Explosion Protection:
ATEX 0539 II 2 G Ex d e IIB T4 Gb
(Tamb = -40/-20°C to +80°C)
IECEx Ex d e IIB T4 Gb
(Tamb = -40/-20°C to +80°C)
Weight: 18 lbs. / 8kg.