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Unconditional Satisfaction GuaranteeNo Shipping Fees Above 302 Months to Decide. Returns Simplified.The Wood’s Powr-Grip N5450WBP is the premium safety version of the standard N5450, adding a Low Vacuum Audio Alarm (LVAA) that emits an audible warning from the plunger when vacuum pressure drops to a critical level providing a second, independent safety alert that does not require the operator to maintain visual contact with the red-line indicator during a lift. Featuring a 9″ (23 cm) standard rubber suction pad (Model G0725), an all-metal handle and plunger, and a rated load capacity of 150 lbs (68 kg) on flat smooth, nonporous surfaces, the N5450WBP delivers the same high-capacity flat-surface performance as the N5450 with an additional layer of audible vacuum loss protection critical for overhead lifts, high-noise environments, and applications where PPE or sightline obstructions prevent continuous visual monitoring of the vacuum indicator. Battery powered (AAA battery included). The N5450WBP (SKU: 91707, Model: N5450WBP) is manufactured by Wood’s Powr-Grip and ships with a protective carrying case.
The N5450WBP is identical to the N5450 in pad, capacity, handle construction, and surface ratings the sole differentiator is the Low Vacuum Audio Alarm plunger, which adds an audible warning channel to the existing red-line visual indicator. In any lift where the operator cannot continuously monitor the red-line indicator overhead glass installation, multi-person coordinated lifts where one operator cannot see the cup, noisy construction environments where a verbal warning might not be heard, or any application where safety regulations require redundant vacuum loss alerting the N5450WBP is the correct and safer choice over the standard N5450.
The N5450WBPs defining feature is its Low Vacuum Audio Alarm plunger, which emits an audible warning signal when vacuum pressure drops to a critical level during a lift. This audio alarm operates independently of the red-line visual indicator, providing a second, redundant safety channel that alerts the operator and nearby personnel to vacuum loss even when the red-line indicator cannot be seen. The audio alarm is particularly critical in three scenarios: (1) overhead lifts, where the operator is looking up and cannot see the indicator on the cup body; (2) high-noise environments, where the alarm must be loud enough to be heard over construction site noise confirm the alarm volume is adequate for your specific environment; and (3) multi-person lifts, where the operator holding the cup may not be the person monitoring the load. The LVAA is battery-powered (AAA battery included and replaceable).
The N5450WBP retains the standard red-line visual indicator in addition to the audio alarm, providing two independent vacuum loss warning channels. The visual indicator remains the primary monitoring tool during lifts where the operator can see the cup; the audio alarm provides backup alerting when visual monitoring is not possible or is interrupted. This dual-channel safety design makes the N5450WBP the highest-safety-specification hand cup in the standard WPG lineup for flat-surface applications.
Both the handle and plunger are constructed from metal, providing maximum structural rigidity and long-term durability for repeated heavy-duty professional use. The all-metal construction resists deformation under sustained heavy loads and delivers consistent vacuum engagement and release action over the tools service life. The audio alarm mechanism is integrated into the metal plunger assembly and powered by the AAA battery.
The N5450WBP is rated for loads up to 150 lbs (68 kg) on flat, smooth, nonporous surfaces identical to the standard N5450. This high capacity enables single-operator handling of large, heavy flat panels that would otherwise require a two-person lift. The audio alarm is especially valuable at or near the rated capacity limit, where vacuum loss would result in a sudden drop of a heavy load.
The 9″ (23 cm) G0725 pad provides a large contact area for strong, stable vacuum retention on flat smooth surfaces. The G0725 pad is shared with the N5450, N5000, and N5300, making replacement pads interchangeable across all four models. Replacement pads are available separately through Wood’s Powr-Grip authorized distributors.
The N5450WBP ships with an AAA battery installed and ready for use. The battery is user-replaceable verify battery condition before each use to ensure the audio alarm is operational. The N5450WBP ships with a protective carrying case that keeps the pad clean and protected between uses.
Glaziers installing overhead glass panels including skylights, overhead curtain wall units, and ceiling glass use the N5450WBP where the operator is looking upward during the lift and cannot maintain visual contact with the red-line indicator on the cup body. The audio alarm provides the critical vacuum loss warning that the visual indicator cannot deliver in this orientation. This is the primary application that makes the N5450WBP the correct choice over the standard N5450.
On active construction sites where ambient noise from equipment, tools, and operations is high, the audio alarm provides a vacuum loss warning that can be heard by the operator and nearby personnel even in noisy conditions. Confirm the alarm volume is adequate for your specific noise environment before relying on it as the primary warning channel in high-noise settings.
In multi-person lifts where the operator holding the cup is not the person monitoring the load such as when one operator positions the cup and another guides the panel into place the audio alarm alerts all personnel in the vicinity to vacuum loss, not just the person with a direct sightline to the indicator. This improves overall lift safety in coordinated team operations.
In environments where safety regulations, site safety plans, or insurance requirements mandate redundant vacuum loss alerting for overhead or heavy panel lifts, the N5450WBPs dual-channel audio+visual alarm system satisfies requirements that the standard N5450s visual-only indicator cannot meet. Consult your site safety plan and applicable regulations to determine whether redundant alerting is required for your application.
For any heavy flat glass, stone, or panel handling application at or near the 150 lb capacity limit, the N5450WBPs audio alarm provides an additional safety margin by alerting the operator to vacuum loss before a catastrophic drop can occur particularly valuable when handling panels whose weight makes a sudden drop especially dangerous.
Not compatible with: curved surfaces (flat only); rough, textured, or porous surfaces; surfaces contaminated with oil, wax, or debris in the pad contact area; concrete, brick, unpolished stone, wood, or drywall.
| Specification | Details |
|---|---|
| Model | N5450WBP |
| SKU | 91707 |
| Vendor | Wood’s Powr-Grip |
| Load Capacity | 150 lbs [68 kg] |
| Pad Diameter | 9″ [23 cm] |
| Pad Model | G0725 |
| Rubber Type | Standard |
| Handle Type | Metal |
| Plunger Type | Metal (with integrated Low Vacuum Audio Alarm) |
| Vacuum Loss Warning | Audible alarm (LVAA) + Red-line visual indicator (dual-channel) |
| Battery | AAA (included, user-replaceable) |
| Surface Texture Required | Smooth |
| Material Porosity Required | Nonporous |
| Allowable Surface Curvature | Flat only |
| Maximum Elevation | 5,000 ft [1,500 m] |
| Operating Temperature Range | 10F to 120F [-12C to 49C] |
| Includes | Protective carrying case, AAA battery |
Q: What is the Low Vacuum Audio Alarm (LVAA) and how does it work?
A: The Low Vacuum Audio Alarm is an integrated feature of the N5450WBPs metal plunger that emits an audible warning signal when vacuum pressure drops to a critical level during a lift. It is powered by a AAA battery (included) and operates independently of the red-line visual indicator. When vacuum pressure falls below the alarm threshold, the plunger emits an audible alert warning the operator and nearby personnel to lower the load immediately. The alarm provides a second, independent safety channel for situations where the red-line indicator cannot be seen.
Q: What is the difference between the N5450WBP and the standard N5450?
A: The N5450WBP is identical to the N5450 in pad (G0725), capacity (150 lb), handle construction (all-metal), and surface ratings (flat, smooth, nonporous). The sole difference is the Low Vacuum Audio Alarm plunger, which adds an audible vacuum loss warning to the standard red-line visual indicator. Choose the N5450WBP for overhead lifts, high-noise environments, multi-person lifts, or any application where visual monitoring of the red-line indicator is not continuously possible; choose the standard N5450 for standard flat-surface applications where the visual indicator is sufficient.
Q: What happens if the battery dies during a lift?
A: If the battery is dead or discharged, the audio alarm will not function but the red-line visual indicator remains active regardless of battery state. The cup will still provide vacuum loss warning through the visual indicator. Always verify battery condition before each use session to ensure both warning channels are operational. Replace the AAA battery immediately if the alarm does not function during pre-use testing.
Q: Will the audio alarm be heard in a noisy construction environment?
A: The audio alarm is designed to be audible in typical work environments, but its effectiveness in high-noise environments depends on the specific ambient noise level and the operators proximity to the cup. Always verify alarm audibility in your specific work environment including with any hearing protection worn before relying on it as the primary warning channel. Note that hearing protection may reduce the audibility of the alarm.
Q: Is the G0725 pad interchangeable with the standard N5450?
A: Yes. The N5450WBP, N5450, N5000, and N5300 all use the G0725 standard rubber pad (9″ diameter), making replacement pads interchangeable across all four models. Replacement pads are available separately through Wood’s Powr-Grip authorized distributors.
Q: Is this product made to order?
A: Yes. This product is made to order and all sales are final. Please confirm your surface type, load requirements, and application environment before placing your order.
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