XR45

Industry-First Hollow Shaft Solution

The XR45 SMARTSafe™ Magnetic Encoder is a rugged, hollow-shaft encoder designed for hazardous environments.

ATEX, IECEx, and cULus approved, it offers durable magnetic technology for gas and ATEX dust applications, ensuring reliable performance in demanding industrial settings.

XR45

Industry-First Hollow Shaft Solution

The XR45 SMARTSafe™ Magnetic Encoder is an industry-first hollow shaft encoder, combining advanced magnetic technology with SMARTSafe™ protection for maximum durability.

Designed for hazardous environments, it is ATEX, IECEx, and cULus approved, making it ideal for gas and ATEX dust applications. Unlike conventional optical encoders with fragile bearings, the XR45 is built to withstand extreme conditions, including vibration, shock, liquids, and contaminants.

For Level 2 applications (ATEX/IECEx Zone 2 or UL Class I, Division 2), the XR45 installs directly without requiring barriers, isolators, or explosion-proof glands. For Level 1 (Zone 1 or Class I, Div 1), it pairs with XRB1 or XRB2 isolators for intrinsically safe wiring.

Featuring robust fault protection against short circuits and wiring failures, the XR45 eliminates common encoder issues and keeps critical equipment running 24/7 in industries such as paint booths, draw works, and coil tubing rigs.

Fits Shafts 5/8″- 1 1/8″ [16mm-30mm]
IECEx Rated: Zone 1 & 2, 21 & 22
ATEX Rated for Zone 1, 2, 21 & 22 Applications
Ideal for Oil & Gas Drilling
No fragile optics, no glass disks
Fully Potted Electronics
Up to 5000 PPR
Protected Against Wiring Errors
3 Year No-Hassle Warranty
cULus Class I Division 1 Groups A,B,C,D Listed
cULus Class I Zone 0 Group IIC
cULus Class I Division 2 Groups A,B,C,D Listed

Relevant Documents

New Absolute Rotary Encoders for Industrial Automation

Heavy Duty Encoders For Harsh Environments

XR45

Technical Specification

Technical Information
Operating Power	(Add load and cable drive current as required) Division 1, Zone 1 (XRB3): 12-24VDC In/Out, 150 mA Division 2, Zone 2: 5-24VDC In/Out, 150 mA
Output Format	A Quad B with marker (A, /A, B, /B, Z, /Z)
Frequency Range	0 to 165 kHz
Maximum Cable Length	Division 1, Zone 1: Encoder 500′, Isolator 1000′ Division 2, Zone 2 (5 to 12 VDC in): 500′ Division 2, Zone 2 (15 to 24 VDC in): 250′
Temperature	-40°C to 80°C (Storage: -40°C to 100°C)
Enclosure Requirements	XRB3 Isolator: Must be installed in an IP54 enclosure if used outdoors (Class 1/Div 1 / Zone 1) Encoder Enclosure: IP65 Encoder Electronics: Fully Encapsulated – IP67 **
Vibration	18G; 100G Shock
Weight	10-12 lbs [4.5-5.5kg]
Certifications	ATEX/IECEx Zone 1 & 21 Group IIC cULus Class I Div 1 and Zone 0 Group A, B, C, D* ATEX/IECEx Zone 2 & 22 Group IIC cULus Class I Div. 2 Groups A, B, C, D *See installation drawings for Warnings and Limitations.