HW1B-M110B

1. Overview

The IDEC HW1B-M110B is a 22mm heavy-duty industrial pushbutton from IDEC's HW Series ("HW 22mm Heavy-Duty"). It is a complete assembled unit — the part number fully encodes the configuration: HW1B = HW series 22mm flush non-illuminated operator body; M = momentary action; 1 = 1 contact block; 1 = 1 Normally Open (1a/1NO); 0 = 0 Normally Closed; B = Black. The unit ships ready to mount with contact block (HW-CB10) included. IDEC sells this across all global regions — APAC, USA, India, Japan, China — as an active current product; the updated June 2025 catalog model is HW1B-M110B-MAU. DATA QUALITY FLAG: The catalog entry (product_id 311) labels this part as "Blue" and the slug contains "blue," but every authoritative source — DigiKey, Mouser, RS Components, Thermal Devices, Marutsu, Moglix, Lectrocomponents, multiple Japanese retailers, and IDEC's own product title "22mm PB BLACK JP Version" — confirms the actuator color is BLACK. In the IDEC HW series color suffix decode, B = Black (not Blue); the yellow sibling HW1B-M110Y (#310) uses Y = Yellow. There is no IDEC HW1B-M110B with a blue actuator.

2. User Sentiment

No direct forum reviews or head-to-head comparisons were found specific to HW1B-M110B. The IDEC HW series is widely regarded as premium industrial-grade hardware — Galco describes HW Series switches as "considered the best engineered switch in the world." The product is stocked across both global authorized distributors (DigiKey, Mouser, RS Components, Radwell) and Japanese industrial supply chains (Monotaro, Misumi, AXEL/AS ONE, Marutsu, Orange Book/TRUSCO), reflecting broad market confidence. The part appears in surplus channels (eBay Australia/DE, Radwell) alongside new-in-box authorized supply, consistent with a long-production, high-demand component.

3. Real-World Applications

The HW1B-M110B is used in industrial control panels, factory automation systems, machine tool interfaces, and production equipment where a robust 22mm momentary pushbutton is required. Black buttons in IEC/ANSI convention are general-purpose — used for start, jog, confirm, and non-emergency function initiation. The switch is deployed across Asian (Japan, China, Thailand, Vietnam, India), European, and North American markets. The related FB1W-HW1B-M110B-Z0 is an IDEC control station enclosure that ships pre-fitted with this switch, indicating OEM/panel-builder use.

4. Technical Specifications

• Type: Complete assembled unit — non-illuminated flush momentary pushbutton with 1NO contact block included (HW-CB10); SPST-NO
• Color: BLACK (B suffix) — button cap and bezel; catalog entry says "Blue" — this is INCORRECT per all sources
• Action: Momentary (spring-return; button returns to up position on release)
• Contact Configuration: 1NO (1a, SPST-NO; 0 NC contacts) — confirmed by DigiKey, Marutsu, Moglix, Legend Electrical Sales, Southern Controls, Lectrocomponents, eBay listings, and Japanese marketplace data; catalog entry "1NO" is CORRECT
• Mounting Hole: 22mm (22.30mm panel cutout)
• Body Diameter: φ23.6mm outer
• Bezel: Round plastic bezel; contact blocks finger-safe (IP20 on terminals per IEC)
• IP Rating: IP65 (dust-tight, water-resistant front face) — confirmed DigiKey, Moglix, RS, Kempston Controls
• Insulation Voltage (Ui): 600V AC
• Contact Rating: AC 110V / 10A; DC 24V / 8A (resistive load)
• Thermal Current (Ith): 10A
• Terminal Type: M3.5 screw terminal (finger-safe integrated terminal cover / SS terminal with spring-up option)
• Contact Material: Silver-clad (Ag) with rolling/raked contact surface for self-cleaning
• Mechanical Life: 5,000,000 operations minimum (confirmed DigiKey)
• Operating Temperature: -25°C to +60°C
• Standards: IEC/EN 60947-5-1; UL/CSA (cULus); SEMI S2; CCC (China); TÜV
• Weight: ~50g

5. Ordering & Compatibility

Pricing: DigiKey ~$20.88 USD; Mouser ~$12–21 USD depending on region; Singapore SGD $19.20 (A4E); Japan ¥549–¥695 depending on retailer; China ¥35.41 RMB (LCSC). The updated MAU version (HW1B-M110B-MAU) is the current June 2025 IDEC catalog model with the same specs. Mouser PN: 199-HW1BM110B; DigiKey PN: 1885-HW1B-M110B-ND; RS stock: 2693006 (global); TRUSCO order code: 850-0172. Contact blocks in the HW series are locking-lever removable for field reconfiguration. Color variants (all 1NO momentary): HW1B-M110Y (Yellow), HW1B-M110G (Green), HW1B-M110R (Red), HW1B-M110W (White), HW1B-M110S. The FB1W-HW1B-M110B-Z0 is a pre-wired IDEC control station box housing this switch.

6. Known Issues

Critical data quality issue: The catalog entry (slug "idec-hw1b-m110b", name "22mm Blue Flush Push Button 1NO") incorrectly identifies this part as BLUE. Every authoritative source — including IDEC's own Mouser/DigiKey product title "22mm PB BLACK JP Version," RS Components across 8 regional sites ("Black/Schwarz/Negro"), Thermal Devices, Moglix, Lectrocomponents, and all Japanese listings explicitly stating ボタン色B(黒) meaning "button color B = Black" — confirms the actuator is BLACK. In the IDEC HW series suffix table, B = Black and there is no blue variant with this part number. The catalog entry color must be corrected from Blue to Black.