- Contactors Supersede from Benshaw to Metasol
Benshaw / Metasol Replacement Contactor Parts Selection for Pueblo Series-R Chillers
Benshaw Replacement Contactor Parts Selection:
The Benshaw line of contactors, auxiliary switches, and interlocks has been discontinued and replaced by the Metasol line. Please take note to the following:
1. The Metasol line of contactors, are not drop in replacements for the Benshaw Contactors. There are some mounting modifications may be required.
2. Replacement parts are not backwards/forwards compatible between the two lines of
contactors. If an auxiliary switch, interlock, or replacement contacts for the contactor is
needed for a Benshaw contactor, replacement of the contactor will be required as well as an interlock and a new shorting bar. The K2 and K3 contactors will interlock, as will the K6 and K7 and must be the same manufacturer. You cannot interlock a Benshaw with a Metasol contactor.
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Below is an example:
- The original contactors and interlock for 1K2 and 1K3 were a CTR02096. It has been replaced by CTR02837.
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Parts are not backwards compatible. The following parts will be required
CTR02738 Interlock Switch
PLT05210 Shorting Bar for the 1K3
The side mounted auxiliary switch as well as the coil will come with the contactor.The side mount auxiliary switch may need to be removed and relocated. Refer to HUB DOC-111593 for removal.
PARTS SELECTION:
Notes:
1. Each wire terminals may accept up to two bare wires of the same size up to 2-awg wires. For shorting applications, use two short wires of the maximum size to short the load side of the contactor
2. Each wire terminals may accept up to two bare wires of the same size up to 3-awg wires. For shorting applications, use two short wires of the maximum size to short the load side of the contactor
3. Each wire terminals may accept up to two bare wires of the same size up to 4-awg wires. For shorting applications, use two short wires of the maximum size to short the load side of the contactor
Note: The Original Benshaw contactors are NOT compatible with ANY of the parts listed.
Metasol “Floating” Contactor Issue
Some of the Benshaw to Metasol supersedes have been reported to “float” when interlocked with some of the combinations available. The issue is caused by the different frame sizes having different dimensions (which effects the depth of the contactors). When replacing the Benshaw with Metasol check to make sure that the frame sizes match if two Metasol contactors are to be interlocked. If they do not match upsize the smaller frame Metasol contactor to the matching larger frame contactor to avoid the floating issue. You want to make sure that the interlocking contactors have matching depth to avoid any issues. Note: Always upsize to the larger contactor, Do NOT downsize to the smaller sized contactor.
ORIGINAL HUB DOCUMENT: DOC-113802
WARNING:
Information in this article is intended for use by individuals possessing adequate backgrounds of electrical and mechanical experience and who comply with all federal, state, and local laws, rules, orders, or regulations related to the installation, service, or repair of a heating or central air conditioning product. Any attempt to install, service, or repair a heating or central air conditioning product may result in personal injury and/or property damage. The manufacturer or seller cannot be responsible for the interpretation of the information contained herein, nor can it assume any liability in connection with its use.