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Introduction and Scope
| Parameter | Requirement | Notes | |———————————–|————————————————|————————————————| | Overcurrent protection rating | Max 125% of motor FLC (continuous duty) | Higher for intermittent duty | | Control circuit voltage | ≤ 120 V AC or ≤ 24 V DC (pushbutton stations) | Higher voltage with isolation transformer | | Disconnect switch | Simultaneous opening of all ungrounded conductors | Must be lockable open | | Motor thermal protection | Thermal overload relay or equivalent | Resettable or replaceable | | Enclosure type (indoor) | NEMA 1 or better | Ingress protection IP20 or higher | | Grounding conductor size | Per CEC Part I, Table 16 | Minimum 14 AWG copper | | Dielectric withstand test voltage| 1000 V + 2 x rated voltage, min 1500 V | For 1 second | | Emergency stop button | Red, mushroom-head, push-pull or twist-release | Located on pendant or fixed panel |
Introduction and Scope
CSA C22.2 No. 45.2-08 (2018) is a safety standard for electric cranes, hoists, and monorail systems. Developed under the Canadian Electrical Code Part II umbrella, it specifies construction, installation, and testing requirements to protect personnel and equipment from electrical hazards. The standard applies to equipment operating from supply voltages not exceeding 750 V in non-hazardous (ordinary) locations. Covered equipment includes overhead traveling cranes, gantry cranes, jib cranes, electric chain hoists, and wire rope hoists.
This standard does not cover railway cranes, mobile cranes (except when used as stationary cranes on a runway), cranes used in hazardous locations, or cranes intended for elevators. For those applications, other standards (such as CSA C22.2 No. 30 or CSA B354 series) apply.
Tip: When selecting a crane for a Canadian installation, always verify that it bears a CSA mark or equivalent accredited certification. Specifying a unit to CSA C22.2 No. 45.2‑08 (2018) from the outset simplifies the permitting process.
Key Technical Requirements
The standard sets forth detailed requirements for electrical design, control circuitry, wiring, enclosures, grounding, and testing. Understanding these key provisions is essential for manufacturers and installers.
Electrical Design and Protection
Each motor must be provided with overcurrent protection rated at no more than 125 % of the motor full‑load current for continuous duty, or as permitted for intermittent duty. A disconnecting means that simultaneously opens all ungrounded conductors must be easily accessible from the operating floor or platform and must be capable of being locked in the open position (lockout/tagout provision). Control circuit supplies for pendant pushbutton stations are limited to 120 V AC or 24 V DC; higher voltages may be used if an isolating transformer provides electrical separation and the circuits are properly grounded.
Important: The disconnect switch for a crane or hoist must be located within sight of the equipment or have provisions for lockout at the point of use. Remote disconnects are not acceptable unless they can be locked in the open position at the equipment location.
Control and Operation
Safety interlocks, limit switches, and emergency stop devices are mandated. Emergency stop buttons must be red, mushroom‑head, and push‑pull or twist‑to‑release type. Travel limit switches must prevent the load block from striking the hoist drum or trolley end stops. Hoists must incorporate a load‑holding brake (typically mechanical). Control circuits must be arranged so that a single failure will not result in unintended motion.
Wiring and Enclosures
Conductors must be selected and installed per the Canadian Electrical Code Part I (CEC). Minimum insulation ratings for hoist motors are 90 °C for dry locations and 105 °C for high‑temperature environments. Enclosures for electrical components must meet the appropriate NEMA type for the environment: NEMA 1 or better for indoor, NEMA 4 or 4X for outdoor or washdown, and NEMA 12 for areas with non‑conductive dust.
| Parameter | Requirement | Notes |
|---|---|---|
| Overcurrent protection (motor branch) | Max 125 % of motor FLC (continuous duty) | Intermittent duty allowed higher settings per standard |
| Control circuit voltage (pendant) | ≤ 120 V AC or ≤ 24 V DC | Isolating transformer needed for higher voltages |
| Disconnecting means | Simultaneous opening of all ungrounded conductors; lockable open | Must be accessible from floor/platform |
| Motor thermal protection | Thermal overload relay or equivalent | Resettable or replaceable type |
| Enclosure type (indoor) | NEMA 1 (or better) | IP20 minimum ingress protection |
| Enclosure type (outdoor/washdown) | NEMA 4/4X | Corrosion resistant material required |
| Grounding conductor | Sized per CEC Table 16 | Min 14 AWG copper; green or green/yellow |
| Dielectric test voltage | 1000 V + 2 × Urated, min 1500 V | Applied for 1 s |
| Emergency stop type | Red, mushroom‑head, push‑pull or twist‑release | Located on pendant or fixed panel |
Grounding and Bonding
The grounded circuit conductor (neutral), if provided, must be identified by a white or gray finish. The grounding conductor must be green or green with a yellow stripe and must be continuous throughout the installation. All exposed non‑current‑carrying metal parts of the crane and hoist must be bonded together and connected to the supply grounding conductor. The standard requires that the grounding path have low impedance to ensure fault current can trip overcurrent devices.
Danger: Never use a separate grounding electrode for the crane—run the grounding conductor from the building grounding system. Improper grounding can create hazardous step and touch voltages during a fault.
Testing and Verification
Manufacturers must subject each unit to a dielectric voltage‑withstand test and an insulation‑resistance test. The dielectric test is conducted at 1000 V plus twice the rated voltage (minimum 1500 V) for one second between live parts and ground, as well as between circuits of different voltage levels. Field testing after installation and during periodic maintenance is recommended to ensure ongoing safety.
Implementation and Compliance
Adherence to CSA C22.2 No. 45.2‑08 (2018) is enforced by provincial and territorial authorities through the adoption of the Canadian Electrical Code. Products must be certified by an accredited certification body such as CSA Group, UL (for Canada), or Intertek (ETL c & us mark).
Certification and Marking
Each crane or hoist assembly must be permanently marked with:
– Year of manufacture
In addition, instruction manuals and wiring diagrams must accompany the equipment.
Installation and Maintenance
Installation must comply with applicable parts of the Canadian Electrical Code (e.g., Section 6 for services, Section 62 for cranes). Competent personnel should perform initial commissioning tests and periodic inspections. The standard recommends that dielectric tests be repeated at least every three years, or more often in corrosive or dusty environments.
Any modification to the electrical system—such as replacing a motor, adding a control feature, or altering the wiring—must be evaluated to ensure continued compliance with the standard.
Success: Facilities that implement a rigorous preventive maintenance program based on CSA C22.2 No. 45.2‑08 (2018) often experience fewer electrical failures, reduced downtime, and smoother interactions with electrical safety inspectors.
Interaction with Other Standards
When applying CSA C22.2 No. 45.2‑08 (2018), installers should also consult:
– Provincial regulations for crane safety (e.g., Ontario Regulation 213/91 for construction projects)
Cross‑reference these standards to achieve a comprehensive safety solution.
Frequently Asked Questions
Q: Does CSA C22.2 No. 45.2‑08 (2018) apply to cranes used in explosive atmospheres?
A: No. This standard is limited to non‑hazardous locations. Cranes intended for Class I, Class II, or Class III hazardous areas must meet the requirements of CSA C22.2 No. 30 (or similar) in addition to crane safety provisions.
A: No. This standard is limited to non‑hazardous locations. Cranes intended for Class I, Class II, or Class III hazardous areas must meet the requirements of CSA C22.2 No. 30 (or similar) in addition to crane safety provisions.
Q: What is the difference between CSA C22.2 No. 45.2‑08 (2018) and UL 61496?
A: CSA C22.2 No. 45.2 is the Canadian national standard for electric cranes and hoists, while UL 61496 is the U.S. standard from Underwriters Laboratories. Although they share many safety concepts, significant differences exist in allowable voltages, conductor sizing, and certification requirements. Canadian installations must use products certified to the Canadian standard.
A: CSA C22.2 No. 45.2 is the Canadian national standard for electric cranes and hoists, while UL 61496 is the U.S. standard from Underwriters Laboratories. Although they share many safety concepts, significant differences exist in allowable voltages, conductor sizing, and certification requirements. Canadian installations must use products certified to the Canadian standard.
Q: How often must the dielectric test be performed after installation?
A: The standard does not specify a fixed interval, but it recommends periodic testing based on service conditions. Industry best practice suggests a full dielectric test every three years, with more frequent insulation resistance checks (annually or semiannually) in harsh environments.
A: The standard does not specify a fixed interval, but it recommends periodic testing based on service conditions. Industry best practice suggests a full dielectric test every three years, with more frequent insulation resistance checks (annually or semiannually) in harsh environments.
© 2026 CSA Standards. This article is for informational purposes only and does not replace the full standard. For complete details, refer to the official publication of CSA C22.2 No. 45.2‑08 (2018).
“content”: “Introduction and Scope
CSA C22.2 No. 45.2-08 (2018) is a safety standard for electric cranes, hoists, and monorail systems. Developed under the Canadian Electrical Code Part II umbrella, it specifies construction, installation, and testing requirements to protect personnel and equipment from electrical hazards. The standard applies to equipment operating from supply voltages not exceeding 750 V in non-hazardous (ordinary) locations. Covered equipment includes overhead traveling cranes, gantry cranes, jib cranes, electric chain hoists, and wire rope hoists.
This standard does not cover railway cranes, mobile cranes (except when used as stationary cranes on a runway), cranes used in hazardous locations, or cranes intended for elevators. For those applications, other standards (such as CSA C22.2 No. 30 or CSA B354 series) apply.
Tip: When selecting a crane for a Canadian installation, always verify that it bears a CSA mark or equivalent accredited certification. Specifying a unit to CSA C22.2 No. 45.2‑08 (2018) from the outset simplifies the permitting process.
Key Technical Requirements
The standard sets forth detailed requirements for electrical design, control circuitry, wiring, enclosures, grounding, and testing. Understanding these key provisions is essential for manufacturers and installers.
Electrical Design and Protection
Each motor must be provided with overcurrent protection rated at no more than 125 % of the motor full‑load current for continuous duty, or as permitted for intermittent duty. A disconnecting means that simultaneously opens all ungrounded conductors must be easily accessible from the operating floor or platform and must be capable of being locked in the open position (lockout/tagout provision). Control circuit supplies for pendant pushbutton stations are limited to 120 V AC or 24 V DC; higher voltages may be used if an isolating transformer provides electrical separation and the circuits are properly grounded.
Important: The disconnect switch for a crane or hoist must be located within sight of the equipment or have provisions for lockout at the point of use. Remote disconnects are not acceptable unless they can be locked in the open position at the equipment location.
Control and Operation
Safety interlocks, limit switches, and emergency stop devices are mandated. Emergency stop buttons must be red, mushroom‑head, and push‑pull or twist‑to‑release type. Travel limit switches must prevent the load block from striking the hoist drum or trolley end stops. Hoists must incorporate a load‑holding brake (typically mechanical). Control circuits must be arranged so that a single failure will not result in unintended motion.
Wiring and Enclosures
Conductors must be selected and installed per the Canadian Electrical Code Part I (CEC). Minimum insulation ratings for hoist motors are 90 °C for dry locations and 105 °C for high‑temperature environments. Enclosures for electrical components must meet the appropriate NEMA type for the environment: NEMA 1 or better for indoor, NEMA 4 or 4X for outdoor or washdown, and NEMA 12 for areas with non‑conductive dust.
| Parameter | Requirement | Notes |
|---|---|---|
| Overcurrent protection (motor branch) | Max 125 % of motor FLC (continuous duty) | Intermittent duty allowed higher settings per standard |
| Control circuit voltage (pendant) | ≤ 120 V AC or ≤ 24 V DC | Isolating transformer needed for higher voltages |
| Disconnecting means | Simultaneous opening of all ungrounded conductors; lockable open | Must be accessible from floor/platform |
| Motor thermal protection | Thermal overload relay or equivalent | Resettable or replaceable type |
| Enclosure type (indoor) | NEMA 1 (or better) | IP20 minimum ingress protection |
| Enclosure type (outdoor/washdown) | NEMA 4/4X | Corrosion resistant material required |
| Grounding conductor | Sized per CEC Table 16 | Min 14 AWG copper; green or green/yellow |
| Dielectric test voltage | 1000 V + 2 × Urated, min 1500 V | Applied for 1 s |
| Emergency stop type | Red, mushroom‑head, push‑pull or twist‑release | Located on pendant or fixed panel |
Grounding and Bonding
The grounded circuit conductor (neutral), if provided, must be identified by a white or gray finish. The grounding conductor must be green or green with a yellow stripe and must be continuous throughout the installation. All exposed non‑current‑carrying metal parts of the crane and hoist must be bonded together and connected to the supply grounding conductor. The standard requires that the grounding path have low impedance to ensure fault current can trip overcurrent devices.
Danger: Never use a separate grounding electrode for the crane—run the grounding conductor from the building grounding system. Improper grounding can create hazardous step and touch voltages during a fault.
Testing and Verification
Manufacturers must subject each unit to a dielectric voltage‑withstand test and an insulation‑resistance test. The dielectric test is conducted at 1000 V plus twice the rated voltage (minimum 1500 V) for one second between live parts and ground, as well as between circuits of different voltage levels. Field testing after installation and during periodic maintenance is recommended to ensure ongoing safety.
Implementation and Compliance
Adherence to CSA C22.2 No. 45.2‑08 (2018) is enforced by provincial and territorial authorities through the adoption of the Canadian Electrical Code. Products must be certified by an accredited certification body such as CSA Group, UL (for Canada), or Intertek (ETL c & us mark).
Certification and Marking
Each crane or hoist assembly must be permanently marked with:
– Manufacturer’s name and address
– Model number and serial number
– Electrical ratings (voltage, current, phase, frequency)
– CSA (or equivalent) certification mark
– Year of manufacture
In addition, instruction manuals and wiring diagrams must accompany the equipment.
Installation and Maintenance
Installation must comply with applicable parts of the Canadian Electrical Code (e.g., Section 6 for services, Section 62 for cranes). Competent personnel should perform initial commissioning tests and periodic inspections. The standard recommends that dielectric tests be repeated at least every three years, or more often in corrosive or dusty environments.
Any modification to the electrical system—such as replacing a motor, adding a control feature, or altering the wiring—must be evaluated to ensure continued compliance with the standard.
Success: Facilities that implement a rigorous preventive maintenance program based on CSA C22.2 No. 45.2‑08 (2018) often experience fewer electrical failures, reduced downtime, and smoother interactions with electrical safety inspectors.
Interaction with Other Standards
When applying CSA C22.2 No. 45.2‑08 (2018), installers should also consult:
– ASME B30.2 – Overhead Gantry Cranes
– ASME B30.16 – Overhead Hoists (Underhung)
– CSA Z432 – Safeguarding of Machinery
– Provincial regulations for crane safety (e.g., Ontario Regulation 213/91 for construction projects)
Cross‑reference these standards to achieve a comprehensive safety solution.
Frequently Asked Questions
Q: Does CSA C22.2 No. 45.2‑08 (2018) apply to cranes used in explosive atmospheres?
A: No. This standard is limited to non‑hazardous locations. Cranes intended for Class I, Class II, or Class III hazardous areas must meet the requirements of CSA C22.2 No. 30 (or similar) in addition to crane safety provisions.
A: No. This standard is limited to non‑hazardous locations. Cranes intended for Class I, Class II, or Class III hazardous areas must meet the requirements of CSA C22.2 No. 30 (or similar) in addition to crane safety provisions.
Q: What is the difference between CSA C22.2 No. 45.2‑08 (2018) and UL 61496?
A: CSA C22.2 No. 45.2 is the Canadian national standard for electric cranes and hoists, while UL 61496 is the U.S. standard from Underwriters Laboratories. Although they share many safety concepts, significant differences exist in allowable voltages, conductor sizing, and certification requirements. Canadian installations must use products certified to the Canadian standard.
A: CSA C22.2 No. 45.2 is the Canadian national standard for electric cranes and hoists, while UL 61496 is the U.S. standard from Underwriters Laboratories. Although they share many safety concepts, significant differences exist in allowable voltages, conductor sizing, and certification requirements. Canadian installations must use products certified to the Canadian standard.
Q: How often must the dielectric test be performed after installation?
A: The standard does not specify a fixed interval, but it recommends periodic testing based on service conditions. Industry best practice suggests a full dielectric test every three years, with more frequent insulation resistance checks (annually or semiannually) in harsh environments.
A: The standard does not specify a fixed interval, but it recommends periodic testing based on service conditions. Industry best practice suggests a full dielectric test every three years, with more frequent insulation resistance checks (annually or semiannually) in harsh environments.
© 2026 CSA Standards. This article is for informational purposes only and does not replace the full standard. For complete details, refer to the official publication of CSA C22.2 No. 45.2‑08 (2018).
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