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    Chief PAC501 & MWRIWUB — In-Wall Box & Swing Arm Mount (30-50") Specifications

    September 08, 2026 2 min read

    Specifications for the Chief PAC501 & MWRIWUB in-wall box and swing arm TV mount, designed for 30-50 inch screens with 22 inch extension.

    💾 Download Original PDF 🛒 View Product
    Full text manual (for reference)

    Specifications for the Chief PAC501 & MWRIWUB In-Wall Box & Swing Arm TV mount, designed for 30–50" screens, offering low-profile in-wall mounting with extendable swing arm reach.

    Key Features

    • Low profile: Designed to keep the mount concealed behind the screen.
    • Smooth extension: Contoured swing arms extend effortlessly up to 22" (559 mm).
    • Centris® fingertip tilt: Effortlessly adjust the display's screen angle using Centris fingertip tilt technology — the angle stays set until readjusted.
    • ClickConnect™ latching: An audible click confirms the screen has engaged with the mount. Easy tool-free connect/disconnect.

    Specifications

    Spec Value
    Roll ±2°
    Tilt -15°, +5°
    Swivel* 60° left/right
    Extension range 0.5" – 22" (13 – 559 mm)
    Box dimensions (H x W x D) 20" x 30" x 3.63" (508 x 762 x 92 mm)
    Color Black
    Weight capacity 125 lbs (56.7 kg)

    *Swivel figure measured with a 42" screen; swivel range varies with screen size.

    Ordering Information

    The PAC501 in-wall box and the swing arm (MWRIW-series) must be ordered separately. Available as:

    • Universal: Order PAC501 and MWRIWUB
    • Custom: Order PAC501, MWRIW6000B + a PSBxxxx power storage box model. See MountFinder™ PRO on chiefmfg.com for custom PSB model numbers.

    Related Chief In-Wall Mount Products

    • PAC501 & PWRIW: In-Wall Box Accessory and Swing Arm Mount
    • MIWRF: In-Wall Swing Arm Mount

    Recommended Accessories

    • PACHFK1: Header/Footer Kit
    • PACCC1: Center Channel Speaker Adapter
    • PACPC1: Power Filter

    For a complete list of TV mount accessories, see Chief's full accessories catalog.

    Technical Drawing Dimensions

    Box footprint: 30" (762 mm) wide x 20" (508 mm) tall x 3.63" (92 mm) deep, with an internal mounting layout at 15" (381 mm) and 10" (254 mm) reference points, and a 0.5" (12 mm) minimum extension offset.

    Chief Manufacturing — chiefmfg.com | Call: 800.582.6480 | Fax: 877.894.6918