Allen-Bradley 81001-956-65-R Packaged Snubber Resistor Assembly
$123.00
$320.00
Description
Allen-Bradley 81001-956-65-R Packaged Snubber Resistor Assembly
The Allen-Bradley 81001-956-65-R, also identified by the base 81001-956-65 part designation, is a packaged snubber resistor assembly for medium-voltage drive switching circuits. It provides resistive absorption of switching transients, voltage ringing, and high-frequency energy associated with semiconductor power switching.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 81001-956-65-R |
| Brand | Allen-Bradley / Rockwell Automation |
| Component Type | Packaged Snubber Resistor Assembly |
| Weight | 3.00 lb |
| Dimensions | 10 in (L) x 6.5 in (W) x 5.5 in (H) |
| Power Rating | 500 W to 600 W continuous |
| Nominal Resistance | 10 ohm to 15 ohm, variant dependent |
| Compliance | RoHS compliant |
| Target Application | Allen-Bradley medium-voltage AC drives, including PowerFlex 7000 series |
| Part Number | 81001-956-65-R |
| Catalog/PN | 8100195665R |
Power Switching Transient Suppression
The resistor assembly forms part of the snubber network associated with medium-voltage drive power switching circuits. It absorbs transient energy generated during semiconductor switching and reduces associated voltage ringing.
The assembly is specified for continuous power dissipation from 500 W to 600 W. The stated resistance range is 10 ohm to 15 ohm, depending on the applicable drive configuration.
The resistor network can limit transient voltage stress across switching devices such as IGBTs or SGCTs. Its electrical behavior also contributes to controlling high-frequency switching effects and associated dv/dt conditions.
The packaged construction provides a defined mechanical assembly for installation within the drive enclosure. The supplied dimensions are approximately 10 in x 6.5 in x 5.5 in, with a stated weight of 3.00 lb.
The "-R" designation is identified in the supplied data as indicating RoHS-compliant construction.
Frequently Asked Questions
Q: What resistance value is specified for the 81001-956-65-R assembly?
A: The supplied data specifies a nominal resistance range of 10 ohm to 15 ohm, depending on drive rating.
Q: What continuous power rating is specified for this resistor assembly?
A: The supplied data specifies a continuous power rating between 500 W and 600 W.
Q: Is the assembly intended for medium-voltage drive applications?
A: Yes. The supplied data identifies Allen-Bradley medium-voltage AC drives, including PowerFlex 7000 systems, as target applications.
Field Installation Guidelines
Install the resistor assembly according to the applicable drive hardware documentation and the specified mounting arrangement. Verify the installed part number against the drive configuration before energization.
Maintain physical clearance from heat-sensitive wiring and components because the resistor dissipates substantial continuous power during operation. Do not route low-level signal wiring directly alongside the snubber power connections.
Keep snubber conductors as short as practical and follow the drive manufacturer's specified connection routing. Avoid creating unnecessary conductor loops that can increase parasitic inductance and high-frequency voltage effects.
Terminate protective grounding connections according to the applicable drive enclosure and electrical installation requirements. Do not use signal cable shields as substitutes for protective earth conductors.
Inspect resistor terminals, mounting hardware, insulation, and conductor routing before energizing the drive. Verify that all connections remain mechanically secure and electrically isolated from unintended conductive surfaces.
Allow the assembly to cool before handling after operation. Thermal conditions should be evaluated from the installed drive design because the supplied data does not specify an operating temperature range.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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