3G16UM Circuit Breaker - Equivalent & Substitute Parts

Part Overview

The 3G16UM is a thermal magnetic circuit breaker manufactured by Altech Corporation, part of the V-EA series. This DIN rail-mounted breaker is rated for 16A at 480V AC and 80V DC with a 3-pole lever actuator configuration. The product is active and in stock with full CSA and UL508 approval. Substitute parts are identified when identical electrical and mechanical parameters are maintained across the V-EA series, allowing for direct replacement in applications where the specific trip characteristic (G, B, D, or E curve) is interchangeable with system requirements.

Substiute Parts

3G16UM

Altech CorporationIn Stock: 11453G16UM Datasheet

Current PartRFQ

3B16UM

Altech CorporationIn Stock: 10213B16UM Datasheet

Parametric EquivalentRFQ

3D16UM

Altech CorporationIn Stock: 11963D16UM Datasheet

Parametric EquivalentRFQ

3E16UM

Altech CorporationIn Stock: 10463E16UM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 3G16UM are identified within the Altech V-EA series based on strict parameter matching. All substitute parts maintain identical specifications across the following critical parameters:

• Current Rating: 16A
• Voltage Rating: 480V AC / 80V DC
• Mounting Type: DIN Rail
• Breaker Type: Thermal Magnetic
• Number of Poles: 3
• Actuator Type: Lever
• Series: V-EA
• Packaging: Bulk
• RoHS Status: ROHS3 Compliant

The substitutes differ only in trip characteristic designation (G, B, D, E curve), which represents the thermal-magnetic response curve. These designations indicate different trip point thresholds but do not affect physical compatibility, electrical ratings, or mounting specifications. All parts are manufactured by Altech Corporation and carry active product status with current inventory availability.

Parameter Comparison

Engineering Selection Recommendations

All four parts (3G16UM, 3B16UM, 3D16UM, 3E16UM) are functionally equivalent for direct substitution based on electrical ratings, mechanical configuration, and approval certifications. Selection between these parts should be based on:

1. Trip characteristic requirement: The letter designation (G, B, D, E) specifies the thermal-magnetic response curve. System design documentation must confirm which curve is required for the application.

2. Certification scope: Parts 3B16UM and 3D16UM carry additional VDE approval beyond CSA and UL508. If VDE certification is required by regional standards or customer specifications, these parts provide expanded compliance coverage.

3. Inventory availability: All parts maintain active stock status. Current inventory levels are 3D16UM (1104 Pcs), 3G16UM (1057 Pcs), 3E16UM (1036 Pcs), and 3B16UM (954 Pcs).

4. Regulatory compliance: All parts are ROHS3 compliant and REACH unaffected, meeting current environmental standards.

Frequently Asked Questions (FAQ)

Q: Can 3B16UM, 3D16UM, and 3E16UM be used as direct replacements for 3G16UM?

A: Yes. All parts share identical electrical ratings (16A, 480V AC, 80V DC), mechanical configuration (3-pole, DIN rail mount, lever actuator), and series designation (V-EA). Physical compatibility and electrical performance are equivalent. The only difference is the trip characteristic curve, which must be confirmed as acceptable for the specific application.

Q: What does the letter designation (G, B, D, E) represent?

A: The letter indicates the thermal-magnetic trip characteristic curve, which defines the response threshold and speed of the breaker under overload and short-circuit conditions. Selection must align with system protection requirements.

Q: Are there differences in approval certifications between these parts?

A: 3G16UM and 3E16UM carry CSA and UL508 approval. 3B16UM and 3D16UM carry CSA, UL508, and VDE approval. If VDE certification is required, 3B16UM or 3D16UM must be selected.

Q: Do all parts use the same DIN rail mounting system?

A: Yes. All four parts are DIN rail-mounted with identical mechanical interfaces and mounting specifications.

Q: What is the packaging format for these parts?

A: All parts are supplied in bulk packaging as specified in the product data.

Q: Are there any environmental or compliance differences?

A: No. All parts are ROHS3 compliant and REACH unaffected, meeting identical environmental standards.