DS20-GY Terminal Block Connector Equivalent & Substitute Parts

Part Overview

The DS20-GY is a 2-position feed-through terminal block connector manufactured by Eaton - Bussmann Electrical Division, part of the Magnum® DS series. This component is designed for screw termination of conductors in the 12-22 AWG range with rated electrical performance of 24 A (IEC) / 20 A (UL) at 1000V (IEC) / 600V (UL). The DS20-GY is currently classified as obsolete. Identifying equivalent substitute parts is necessary to maintain system compatibility and ensure continued availability for applications requiring this terminal block specification.

Substiute Parts

DS20-GY

Eaton - Bussmann Electrical DivisionIn Stock: 907DS20-GY Datasheet

Current PartRFQ

1037720000

WeidmüllerIn Stock: 14211037720000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DS20-GY is determined by the following critical parameters that must be maintained or exceeded:

• Electrical Performance: Current and voltage ratings must meet or exceed IEC and UL specifications (24 A / 1000V IEC minimum; 20 A / 600V UL minimum)
• Physical Configuration: 2-position, 1-level feed-through terminal block with 5.1 mm terminal width
• Termination Method: Screw termination required
• Wire Gauge Compatibility: Must accommodate 12-22 AWG (0.5-2.5 mm²) minimum; wider ranges are acceptable
• Material & Safety Compliance: UL94 V-0 flammability rating required; insulation material must provide equivalent electrical and thermal performance
• Mechanical Fit: Terminal block dimensions and mounting interface must be compatible with existing installations

The substitute part 1037720000 (Weidmüller W series) meets these criteria with equivalent or superior electrical ratings and expanded wire gauge acceptance.

Parameter Comparison

Engineering Selection Recommendations

The Weidmüller 1037720000 terminal block is a suitable substitute for the obsolete DS20-GY based on the following engineering criteria:

Electrical Equivalence: The substitute maintains IEC current rating (24 A) and UL voltage rating (600V), with improved UL current rating (25 A vs. 20 A). The IEC voltage rating of 800V is lower than the original 1000V specification; however, this does not impact applications designed for 600V UL operation.

Physical Compatibility: Both components share identical 2-position, 1-level configuration with 5.1 mm terminal width and screw termination. Mechanical fit and mounting interface are compatible.

Wire Gauge Accommodation: The substitute accepts 12-30 AWG (0.5-4 mm²), which encompasses the original 12-22 AWG (0.5-2.5 mm²) specification. This expanded range provides greater flexibility for conductor sizing.

Compliance & Availability: The substitute is RoHS compliant and in active production status, ensuring long-term availability and regulatory compliance. Both components carry UL94 V-0 flammability certification.

Installation Consideration: The substitute requires 10 mm conductor stripping length versus 9 mm for the original. This represents a minor procedural adjustment with no functional impact.

Frequently Asked Questions (FAQ)

Q: Can the Weidmüller 1037720000 be used as a direct replacement for the DS20-GY in existing installations?

A: Yes. Both components share identical physical dimensions (2 positions, 5.1 mm terminal width), screw termination method, and UL voltage rating (600V). The substitute's expanded wire gauge range (12-30 AWG) and higher UL current rating (25 A) provide equivalent or improved performance. The 1 mm difference in stripping length (10 mm vs. 9 mm) requires only a minor adjustment to conductor preparation procedures.

Q: What is the significance of the IEC voltage rating difference (1000V vs. 800V)?

A: The original DS20-GY is rated 1000V under IEC standards, while the Weidmüller substitute is rated 800V IEC. For applications designed to UL standards at 600V, this difference is not limiting. If your application specifically requires 1000V IEC rating, the substitute may not be appropriate without additional electrical design review.

Q: Does the Weidmüller 1037720000 accept the same wire gauge range as the DS20-GY?

A: The substitute accepts a wider range: 12-30 AWG (0.5-4 mm²) compared to the original 12-22 AWG (0.5-2.5 mm²). This means all conductors compatible with the DS20-GY are also compatible with the substitute, with additional flexibility for larger conductors up to 30 AWG.

Q: Are there any compliance or regulatory differences between these components?

A: The Weidmüller 1037720000 is RoHS compliant and in active production. Both components carry UL94 V-0 flammability certification. The substitute's active status ensures continued availability and regulatory support, whereas the DS20-GY is obsolete.

Q: What packaging considerations apply to the Weidmüller substitute?

A: The Weidmüller 1037720000 is supplied in bulk packaging, whereas the original DS20-GY packaging specification was not provided. Verify bulk packaging compatibility with your procurement and assembly processes.