81001-956-53-R Allen Bradley Snubber resistor assembly
Specification
| Product Description |
|
The Allen‑Bradley 81001-956-53-R is a packaged snubber resistor assembly (PKG SNUBR RES ASSY) designed to absorb transient voltage spikes and
filter noise in motor‑drive and power switching circuits. Its compact design and robust energy dissipation characteristics help protect thyristors,
IGBTs, and other power electronic components in medium-voltage adjustable-speed drives, significantly enhancing system reliability.
|
| More Technical Data |
| Power Rating |
800 W |
| Resistance |
45 Ω |
| Material |
Ceramic resistor elements |
| Terminal Type |
Screw terminals |
| Mounting |
Typically wall- or panel-mountable |
| Frequently Asked Questions |
|
Q: What is a snubber resistor assembly used for?
A: It provides a low‑impedance path for transient voltage spikes during switching events (e.g. motor-drive turn‑off),
absorbing energy to prevent spikes from damaging power semiconductors and control equipment.
Q: Where is it typically used?
A: In medium-voltage drives and automation systems—including PowerFlex 7000 drives,
ControlLogix, CompactLogix, PLC-5, MicroLogix, SLC‑500, and PanelView series controllers in industrial applications.
Q: What are the environment and compliance limits?
A: Operating temperature range: –40 °C to +85 °C. Designed to withstand
high-voltage stress (≥ 2,000 V AC for 1 minute). Insulation resistance is ≥ 1 MΩ at 500 V DC.
Q: Is this assembly still supported or has it been discontinued?
A: According to Rockwell Automation, the 81001‑956‑53‑R is listed as active in its lifecycle.
Note that similar parts (e.g. model suffix “‑54‑R”) have been discontinued, but the “‑53‑R” variant remains active as of 2025.
|
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We specialize in control systems and drives. With many years of experience in the industrial sector,
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