Altech Corporation 3B60UM Circuit Breaker Equivalent & Substitute Parts

Part Overview

The Altech Corporation 3B60UM is a thermal magnetic circuit breaker rated for 60A at 480V AC and 60V DC, configured as a 3-pole DIN rail mounted device with lever actuation. This part is currently active in production with 751 units in stock. Equivalent and substitute parts within the V-EA series share identical electrical and mechanical specifications, allowing direct substitution based on thermal-magnetic characteristic curves and approval certifications.

Substiute Parts

3B60UM

Altech CorporationIn Stock: 7743B60UM Datasheet

Current PartRFQ

3C60UM

Altech CorporationIn Stock: 10793C60UM Datasheet

Parametric EquivalentRFQ

3G60UM

Altech CorporationIn Stock: 9553G60UM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The 3B60UM, 3C60UM, and 3G60UM are parametric equivalents within the Altech V-EA series. Substitution is valid based on the following criteria:

All three parts share identical electrical ratings (60A, 480V AC, 60V DC), mechanical configuration (3-pole, DIN rail mount, lever actuation), and approval certifications (CSA, UL508). The primary distinction between these parts is the thermal-magnetic characteristic curve designation: B-characteristic for 3B60UM, C-characteristic for 3C60UM, and G-characteristic for 3G60UM. These characteristic curves define the trip response time under fault conditions and are interchangeable within applications where the specific curve type is not mandated by system design requirements.

Parameter Comparison

Engineering Selection Recommendations

All three circuit breaker models (3B60UM, 3C60UM, 3G60UM) are active products with full CSA and UL508 approval certifications. Selection between these equivalents depends on the thermal-magnetic characteristic curve requirement specified in the application design. The B-characteristic (3B60UM) provides one trip response profile, the C-characteristic (3C60UM) provides an alternative profile, and the G-characteristic (3G60UM) provides a third option. All parts maintain ROHS3 compliance and REACH unaffected status. Inventory availability is 751 units for 3B60UM, 1022 units for 3C60UM, and 924 units for 3G60UM.

Frequently Asked Questions (FAQ)

Q: Can 3C60UM replace 3B60UM in an existing installation? A: Direct replacement is possible only if the application does not specify a particular thermal-magnetic characteristic curve. The electrical ratings and mechanical configuration are identical; the difference lies in trip response timing under fault conditions.

Q: What is the difference between B, C, and G characteristic designations? A: These designations define the thermal-magnetic trip curve profile. Each provides different response times under overload and short-circuit conditions. Selection must align with system protection requirements.

Q: Are all three parts approved for the same voltage and current ratings? A: Yes. All three parts are rated for 60A at 480V AC and 60V DC with identical CSA and UL508 certifications.

Q: Is packaging identical across all three substitute parts? A: Yes. All three parts are supplied in bulk packaging.

Q: Can these parts be used interchangeably in DIN rail installations? A: Yes. All three parts feature identical DIN rail mounting and lever actuation, allowing direct mechanical interchange.