Product Overview
SECO-LARM DH-151SQ Surface-Mount Magnetic Door Holder – 33 lb Force, Tri-Volt, Fail-Safe
Compact yet rugged, the SECO-LARM DH-151SQ is a UL-Listed, surface-mount magnetic door holder featuring a cast-aluminum faceplate. Engineered for fail-safe operation, it securely holds doors with a 33 lb (15 kg) magnetic force and supports flexible installation with tri-volt capability and a low-profile, adjustable design.
Key Features ▼
- Tri-Volt Compatibility: Works seamlessly with 12 VAC/VDC, 24 VAC/VDC, or 120 VAC systems.
- Fail-Safe Operation: Automatically releases when power is cut, ensuring safety.
- Adjustable Armature Plate: Simplifies installation and adjusts to door alignment changes.
- Built-In Voltage Spike Suppressor: Protects the unit from power surges for extended longevity.
- Strong Holding Force: Delivers reliable 33 lb (15 kg) magnetic hold, while resisting residual magnetism.
Specifications ▼
- Model: DH-151SQ
- Manufacturer Part Number: DH-151SQ
- Mounting Type: Surface-mount with backbox
- UL Listing: Yes
- Operating Voltage: 12 VAC/VDC, 24 VAC/VDC, 120 VAC
- Current Draw:
- 52 mA @ 12 VAC
- 60 mA @ 12 VDC
- 27 mA @ 24 VAC
- 31 mA @ 24 VDC
- 24 mA @ 120 VAC
- Holding Force: 33 lb (15 kg)
- Magnet Dimensions: 2-3/4″ × 4-9/16″ × 3″ (70 × 116.5 × 76 mm)
- Armature Dimensions: 2-9/16″ × 2-9/16″ × 1-9/16″ (65 × 65 × 40 mm)
- Magnet Box Weight: 1 lb 6.4 oz (635 g)
- Armature Weight: 8.1 oz (230 g)
- Faceplate Material: Cast aluminum
- No Residual Magnetism: Yes
- Spike Suppressor: Built-in
- Optional Extension Bars: Available in ½″, ¾″, 1″, 2″ (and in some listings up to 7″) :contentReference[oaicite:6]{index=6}
- Compatible Door Closers: SD-C121-S, SD-C131-SQ, SD-C101-SGQ, SD-C101-SBAQ :contentReference[oaicite:7]{index=7}
Warranty Information
Warranty is covered by the manufacturer
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