Schneider Electric offers a robust line of air conditioning disconnects with the residential and commercial installer in mind. In 2009, this offer was standardized with a molded case switch version, available in either metallic or non-metallic enclosures, or a metallic enclosure for a two-pole 60 A maximum Type QO circuit breaker. Air conditioning disconnects from Schneider Electric are Underwriters Laboratories® (UL®) Listed NEMA Type 3R rainproof. They are designed to meet all current National Electrical Code® (NEC®) requirements for a disconnecting means on residential and commercial air conditioning installations, as well as other single-phase applications, such as swimming pools and pump houses. The metallic and non-metallic product lines offered by Schneider Electric provide the flexibility to meet the most common air conditioning disconnect application.
Circuit breaker type for applications requiring overcurrent protection
• • •
NEMA Type 3R metallic and non-metallic enclosures
Molded case switch type for applications not requiring overcurrent protection Two-wire single-phase 240 Vac 60 A maximum
Air Conditioning Disconnects Data Bulletin
3150DB9901R08/09 08/2009
Restricted to Company Personnel
Table 1:
General Information and Enclosure Components
Midwest
Cutler-Hammer
Milbank
Bussman
Prevents damage during shipment
Yes
No
No
Yes
No
No
No
Gray NEMA Type 3R Non-Metallic Enclosure
Offers long-lasting corrosion resistance to harsh outdoor elements using an engineered polymer enclosure. Durable material resists scratching and denting.
Yes
No
No
No
N/A
No
N/A
Powder Coat Painted NEMA Type 3R Metallic Enclosure
Offers long-lasting corrosion protection using galvanneal steel with powder coat paint.
Yes
?
?
?
?
?
?
Enclosure
Table 2:
Benefit
Interior Components
Table 3:
Cutler-Hammer
Milbank
Bussman
Electroplated CurrentCarrying Components
Yes
No
No
No
No
No
No
Yes
?
?
?
?
?
?
Benefit
Ensures superior corrosion protection
Factory-Installed Ground Terminals with Slot / Provides for a faster installation Square Drive
Cover Components Siemens
Midwest
Cutler-Hammer
Milbank
Bussman
Eaton
Cover Padlock Provision
Prevents unauthorized access and operation.
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Captive Screw on Non-Metallic Deadfront
Helps prevent lost hardware.
Yes
No
No
No
No
No
No
Integral Cover Latch on Non-Metallic Enclosure
Provides the same corrosion resistant properties as the enclosure. Easily operated and can be padlocked.
Yes
No
No
Yes
N/A
Yes
N/A
Molded Case Switch Disconnect with Removable Cover