HW1B-M110G

1. Overview

The IDEC HW1B-M110G is a heavy-duty 22mm flush-style momentary push button switch from IDEC's HW Series. It features a green round operator, one normally open (1NO) contact, and spring-return (momentary) action. Designed for industrial control panels and machinery, it is part of IDEC's premium HW 22mm heavy-duty lineup — a long-established family of control devices known for robustness, wide electrical ratings, and broad certification coverage. The flush (flat) profile of the operator reduces the risk of accidental actuation, making it suitable for environments where unintended presses must be minimized. The green color conventionally signals "start," "run," or "safe" in industrial applications, aligning with IEC and NFPA 79 color coding conventions.

2. User Sentiment

No direct user reviews or ratings are publicly available for the HW1B-M110G specifically. The product page on Moglix notes "Be the first one to provide review," and Lectro Components lists it without customer feedback. However, the HW Series as a whole is widely stocked and reordered by industrial distributors globally, indicating strong market acceptance. IDEC's HW series is a well-regarded product line in industrial automation and control, commonly specified by OEMs and machine builders who require reliable, certifiable push button hardware. The availability across numerous distributors — Moglix, Lectro Components, chip1stop, Misumi, Mouser — reflects steady demand in industrial procurement channels.

3. Real-World Applications

The HW1B-M110G is suited to a broad range of industrial control scenarios:

• Machine start/run controls: The green flush button is a standard "cycle start" or "motor run" button in machine control panels.
• Conveyor and process line controls: Used to initiate conveyor movement or process sequences in manufacturing environments.
• Control panel builds: Frequently specified in custom-built industrial control panels by system integrators and OEMs.
• HVAC and building automation: Flush push buttons are used in mechanical room panels for fan and pump start functions.
• Safety-adjacent functions: While not an emergency stop, the 1NO momentary configuration is used in interlocked circuits where operator confirmation is required before a machine cycle begins.

The 22mm format is the global industrial standard panel cutout size, ensuring compatibility with the widest range of enclosures, din-rail mounting accessories, and other HW Series components (indicator lights, key switches, selector switches).

4. Technical Specifications

• Type: Non-illuminated flush momentary push button, 22mm
• Contact Configuration: 1NO (Normally Open), spring-return
• Operator Color: Green
• Operator Style: Flush / flat round
• Rated Voltage: Up to 600V AC / 600V DC
• Rated Current: 10A continuous
• Contact Operating Range: 5mA at 3V AC/DC (min) to 10A at 120V AC (max)
• Contact Resistance: 50 mΩ
• Electrical Life: 500,000 operations (500 kcycles)
• Mechanical Life: 5,000,000 operations (5 Mcycles)
• Panel Cutout: ø22mm
• Terminal Type: M3.5 screw terminals (push-in terminal variant also available in HW series)
• Terminal Safety: Finger-safe IP20 screw terminals
• Protection Rating: IP65 (front face), UL Type 4X
• Operating Temperature: -25°C to +60°C
• Contact Material: Silver alloy, rolling-contact self-cleaning design
• Weight: Approx. 66g
• Certifications: UL listed, CSA certified (cULus), TUV (CE marking, EN standards)

5. Ordering & Compatibility

The HW1B-M110G is the complete assembled unit (operator head + 1NO contact block). Within IDEC's HW Series modular system, the operator head and contact blocks can also be ordered separately for custom configurations. Compatible accessories include:

• Additional contact blocks (NO or NC) to increase pole count
• Illuminated operator heads (LED versions, e.g. HW1B-M1F10-G for flush illuminated)
• Protective boots and guards
• Legend plates and nameplates

It is available from major industrial distributors including Mouser Electronics, Misumi, Moglix, Lectro Components, and chip1stop. Pricing is typically in the range of €7–€15 depending on distributor and quantity. Moglix lists it as "available on request," suggesting possible regional lead times in some markets.

Part number variants to be aware of:

• HW1B-M110G: Non-illuminated, flush, 1NO, green (this product)
• HW1B-M1F10-G: Non-illuminated, flush, 1NO, green (alternate part number used on some US IDEC pages — functionally equivalent)
• HW1B-M120G: Non-illuminated, flush, 1NC, green

6. Known Issues

No significant issues reported. The HW Series is a mature, well-certified product line with no known field defects or safety advisories. The non-illuminated version (HW1B-M110G) is simpler and more robust than illuminated variants, with no LED driver circuitry to fail. Users should note that the screw terminal (M3.5) requires appropriate torque on assembly and that the IP65 rating applies to the front face of a properly panel-mounted unit — the rear terminal area is rated IP20 (finger-safe but not dust/water protected), which is standard for this class of device.