ABB - Installation Products M650SL - 15-25 kV, 600 Amps, Sacrificial Limb, Spiking Aid Appendage. Replaceable Cap that Provides a Convenient Place to Spike the Bus to Assure that it is De-Energized. This also Assures that all Cables Connected to the Bus are De-Energized. Meets ANSI/IEEE Standard 386. 5.06 inches Long X 1.96 inch Diameter. Includes IS-1296 Instruction Sheet.
ABB - Installation Products

M650SL

UPC: 075114366526


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Overview

The ABB M650SL Sacrificial Limb Spiking Aid (SKU: M650SL) is a 15-25 kV, 600 Amp device designed for safe, temporary de-energization of medium-voltage bus systems. This sacrificial limb attaches to the bus and provides a replaceable cap where a voltage detector or spike can be applied to confirm de-energization before maintenance. The replaceable cap ensures consistent performance and eliminates the need for permanent modifications to the bus. The M650SL meets ANSI/IEEE Standard 386 for separable insulated connectors, ensuring compatibility with standard 15-25 kV class systems. With a compact 5.06-inch length and 1.96-inch diameter, it fits in confined spaces while maintaining full-rated current capacity. The device includes an IS-1296 instruction sheet for proper installation and use. Typical applications include utility substations, industrial power distribution, renewable energy facilities, and commercial electrical systems where safe, verifiable bus de-energization is critical. The sacrificial limb design allows for quick replacement after use, minimizing downtime during maintenance operations. No special tools are required for installation, and the unit is designed for repeated use in high-voltage environments.
  • 15-25 kV, 600 Amp rated for medium-voltage systems
  • Replaceable cap for safe, verifiable bus de-energization
  • Meets ANSI/IEEE Standard 386 for compatibility
  • Compact 5.06" L x 1.96" Dia. design for confined spaces
  • Includes IS-1296 instruction sheet for proper use

Specifications

Application
35
Connection
Mechanical
Material
EPDM-Rubber
Size
5.06 inches Long x 1.96 inch Diameter
Special Features
Replaceable
Standard
ANSI/IEEE Standard 386
Temperature Rating, Maximum
149 F
Temperature Rating, Maximum
65 C
Temperature Rating, Minimum
-40 F
Temperature Rating, Minimum
-40 C
Type
Sacrificial Limb, Spiking Aid Appendage
Package Dimensions (L x W x H)
0.01 IN x 0.01 IN x 0.01 IN
Package Dimensions (L x W x H)
0.0254 cm x 0.0254 cm x 0.0254 cm
Package Weight (Imperial)
1.0000 L
Package Weight (Metric)
0.4540 kg
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Frequently Asked Questions

What is the purpose of the K650SL/M650SL spiking aid appendage?

It is a replaceable cap that screws onto spiking aid H, Y, or I buses. It provides a convenient point to spike the bus to ensure it and connected cables are de-energized.

What is the impulse withstand rating (BIL) for the 35kV M650SL?

For the 35kV class, the impulse withstand (BIL) is 150kV (1.2 x 50 microsecond wave).

How do I order the 35kV spiking aid appendage?

To order the 35kV spiking aid appendage, specify part number M650SL.

What is the momentary current rating for the spiking aid?

The momentary current rating for all voltage classes is 25kA Sym for 10 Cycles.

What is the corona extinction voltage for the 35kV M650SL?

For the 35kV class, the corona extinction voltage at 3pC sensitivity is 26kV AC.

What is the 15-minute DC withstand voltage for the 35kV M650SL?

For the 35kV class, the 15-minute DC withstand voltage is 103kV DC.

What is the one-minute AC withstand voltage for the 35kV M650SL?

For the 35kV class, the one-minute AC withstand voltage is 50kV AC.

What components are included in the K650SL kit?

Each kit contains one Spiking Aid Appendage (K650SL) and one Instruction Sheet (IS-1296).

Is the K650SL/M650SL spiking aid appendage replaceable?

Yes, the K650SL/M650SL spiking aid appendage is replaceable and can be easily removed and installed.

What industry standard does the K650SL/M650SL meet?

The K650SL/M650SL meets ANSI/IEEE Standard 386, Latest Revision, specifically IEEE-386-2006.

How to Install and Replace Sacrificial Caps and Grounding Rods

This guide provides step-by-step instructions for the safe installation and replacement of M/K650SL sacrificial caps and K650SLGB grounding rods, ensuring proper circuit de-energization and grounding procedures.

Estimated time: 30m

Tools needed:

Cutting or spiking tool, Hex wrench, Hot line clamp (bar or ball type)

Supplies needed:

New sacrificial cap (M/K650SL/CS1887), Lubricant, K650SLGB grounding rod (if applicable), 4/0 grounding cable, 14 AWG gage wire

  1. Ensure De-energization and Safety Checks

    Before starting, ensure all apparatus is de-energized. Do not touch or move energized products in the work area. Inspect all parts for damage, proper rating, and compatibility with mating parts. Check package contents and components for proper fit. Failure to follow these instructions will result in damage to the product and serious or fatal injury.

  2. Confirm Circuit De-energization

    Install a cutting or spiking tool on the existing sacrificial cap. Cut or spike the sacrificial cap on the line to visually confirm the circuit is de-energized before proceeding with removal.

  3. Remove Old Sacrificial Cap

    After confirming de-energization, remove the ground wire from the cut or spiked cap. Rotate the cap counter-clockwise to remove it from the sacrificial male interface. Discard the old cap properly.

  4. Install Grounding Rod (Optional)

    If installing a K650SLGB grounding rod, thread it onto the sacrificial male interface. Tighten the grounding rod using the supplied hex wrench until the wrench twists, indicating a torque of 75/110 in/lbs. If not installing a grounding rod, proceed to Step 6.

  5. Attach Grounding Cable (Optional)

    If a grounding rod was installed, attach either a bar or ball type hot line clamp with a 4/0 grounding cable to the grounding rod. Take care not to loosen the grounding rod when tightening the clamp. Attach the opposite end of the 4/0 grounding cable to the system ground. When repairs have been completed, remove the hot line clamp and grounding rod.

  6. Prepare Male Interface and New Cap

    Inspect the sacrificial male interface for any distortion as a result of high fault current. If the interface is distorted, the Buss Bar must be replaced. Clean the male interface thoroughly. Apply the supplied lubricant to both the male interface and the inside of the new sacrificial cap.

  7. Install New Sacrificial Cap

    Install the new sacrificial cap by rotating it clockwise 9 to 10 turns until it stops turning. No additional torque is required. Verify that the gap between the cap and the shoulder of the splice is 1/8 inch or less around the entire cap.

  8. Connect Grounding Wire to New Cap

    Attach a 14 AWG gage wire through the grounding eye of the new cap and tighten it by twisting. Connect the other end of this wire directly to the system ground.

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