APC by Schneider Electric Netbotz Door Switch Sensors (2) for an APC Rack - 12 Ft. - NBES0303

APC by Schneider Electric NBES0303 Door Switch Sensors for APC Racks

Overview

The APC by Schneider Electric NBES0303 delivers a two-sensor door switch kit designed for physical intrusion detection on APC rack enclosures and compatible NetBotz monitoring appliances. Each sensor runs on a 12-foot cable, giving you enough reach to cover both front and rear rack doors from a single monitoring point — a practical detail that matters in dense data center rows where cable management is already a constraint. If you're building out rack physical security or expanding an existing NetBotz deployment, the NBES0303 slots directly into that ecosystem without requiring additional adapters.

Key Features

• Two sensors per kit: Front and rear door coverage from one purchase — no need to source sensors separately for each rack door, which simplifies procurement on multi-rack rollouts.
• 12-foot cable length: Enough slack to route cleanly along standard 42U and 45U rack frames without stressing the connector. Tight cable runs on shorter sensors are a common installation headache this length avoids.
• Compact sensor body (146 × 187 × 19 mm): The low-profile 19 mm depth keeps the sensor from interfering with door swing or gasket seals on enclosed rack cabinets.
• Purpose-built for APC rack environments: Designed to integrate with NetBotz rack access monitoring systems, so configuration stays within the same management interface you're already using for temperature and humidity.

Installation Notes

The NBES0303 is a passive sensor kit — no separate power supply required at the sensor level. Installation involves mounting each switch to the rack door frame and routing the cable to your NetBotz appliance's sensor port. The package weight of 490 g (approximately 1.1 lbs) and compact packaging (232 × 164 × 164 mm) make it easy to keep spares on-site for field replacements. Verify sensor port availability on your NetBotz unit before ordering; the number of supported external sensors varies by appliance model.

For integrators managing centralized physical security systems or data center infrastructure, door switch sensing is a foundational layer — detecting unauthorized rack access in real time rather than discovering it after the fact in access logs. The NBES0303 covers that layer for APC-native deployments.

Frequently Asked Questions

Q: How many door sensors are included with the NBES0303?

A: The NBES0303 includes two (2) door switch sensors, each with a 12-foot cable, allowing coverage of both front and rear rack doors.

Q: What is the cable length on each sensor in the NBES0303 kit?

A: Each sensor features a 12-foot cable, providing sufficient reach for standard rack door monitoring installations.

Q: What are the physical dimensions of the NBES0303 sensor body?

A: The sensor body measures 146 × 187 × 19 mm (W × H × D). The retail package measures 232 × 164 × 164 mm and weighs approximately 490 g (1.1 lbs).

Q: Is the NBES0303 compatible with all APC rack models?

A: The NBES0303 is designed for use with APC rack enclosures in conjunction with NetBotz monitoring appliances. Confirm sensor port availability and compatibility with your specific NetBotz appliance model before ordering.

Q: Does the NBES0303 require a separate power supply?

A: No separate power supply is required at the sensor level. The sensors connect directly to compatible NetBotz appliance sensor ports.

Karl Wilson

The NBES0303 is a straightforward but often-overlooked piece of rack infrastructure. The 12-foot cable per sensor is the detail that actually matters in the field — short sensors force awkward routing and create tension on the connector over time. With two sensors in the kit, you cover front and rear doors in one order, which matters when you're commissioning a row of racks rather than a single cabinet.

Technical Highlights:

• Two-sensor kit: Covers both rack door faces without a second purchase — reduces procurement steps on multi-cabinet deployments.
• 12 ft cable per sensor: Accommodates standard rack heights and top-of-rack sensor port placement without cable extenders.
• Low-profile sensor body (19 mm depth): Won't interfere with door swing or door seal on enclosed APC cabinet models.

Deployment Considerations:

• Verify available sensor ports on your NetBotz appliance before ordering — the NBES0303 connects to the appliance's external sensor inputs, and port count varies by model.
• This is a detection-only passive sensor: it reports door open/closed state. Actuation, locking, or access control functionality requires separate hardware beyond the NBES0303 kit.

Best fit for data center teams standardizing on APC NetBotz for environmental and physical monitoring in colocation or on-premises server rooms — where door event logging needs to live in the same management plane as temperature and humidity alerts.