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Description
Sargent 56-NB-8715-J-ETB-84 Surface Vertical Rod Exit Device, Passage Function, ET Control, B Lever, Electric Latch Retraction, Hex Key Dogging, Less Bottom Rod, Grade 1, For 37-42" Width, 84" Height Door
The Sargent 56-NB-8715-J-ETB-84 is an ANSI/BHMA Grade 1 NB8700 Series surface vertical rod exit device with passage-function ETB lever trim. It is configured for a 37–42-inch door width and a 84-inch door height. The less-bottom-rod design uses a single top latching point without a bottom rod or floor strike. The 56- option provides motor-driven electric latch retraction.
Features
- Single top latching point with less bottom rod construction.
- Passage operation from the outside lever and inside pushpad.
- ETB trim with the B lever design.
- ANSI/BHMA A156.3 Grade 1 construction.
- LHR and RHR configurations are selected through the Handing option.
- Hex key dogging for hold-retracted operation on this non-fire-rated configuration.
- Motor-driven 56- electric latch retraction using a regulated, filtered 24 VDC power supply.
Functional Details
Function 15 is Passage: the outside lever retracts the latch at all times, and the inside pushpad retracts the latch for egress. No cylinder is required for the passage trim. The top latch remains active when the device is released; passage function does not eliminate positive latching. Hex key dogging is specified for this configuration to hold the pushpad and latch retracted for push-pull operation. Applying the specified electrical power retracts the latch through the rail motor; this is electric latch retraction, not an electrically locked ET lever function.
Product Specifications
| Manufacturer | Sargent |
|---|---|
| Series | NB8700 / 80 Series |
| Model | 56-NB-8715-J-ETB-84 |
| Device Type | Surface Vertical Rod Exit Device |
| Function | 15 – Passage |
| Rod Configuration | Less Bottom Rod; single top latch |
| Trim | ETB |
| Lever Design | B |
| Door Width | 37–42 in. |
| Door Height | 84 in. |
| Handing | LHR or RHR; select the matching variant |
| Grade / Standard | ANSI/BHMA A156.3, Grade 1 |
| Minimum Stile with Trim | 4-1/2 in. (114 mm) |
| Standard Door Thickness | 1-3/4 in.; thicker-door preparation requires the appropriate ordered option |
| Pushpad Projection – Neutral | 3 in. (76 mm) |
| Pushpad Projection – Depressed | 2-1/8 in. (54 mm) |
| Top Strike | 646 |
| Dogging | Hex Key Dogging |
| Fire Configuration | Non-fire-rated configuration |
Electrical Details
| Electric Option | 56 – Motor-Driven Electric Latch Retraction |
|---|---|
| Operating Voltage | 24 VDC, regulated and filtered |
| Current During Retraction | 0.6 A |
| Current in Maintained Retracted Position | 0.25 A |
| Required Power Supply Capacity | 1 A at 24 VDC per device |
Use a compatible power supply and follow the manufacturer wiring instructions. Manual hex key dogging is part of the specified non-fire configuration and is separate from electrical latch retraction.
Installation Details
Surface-mounted top rod and latch components attach to the door face. Match the door width, door height and handing to the selected variant. The NB prefix means less bottom rod; it is not a cylinder or handing code. Finish is selected through the Finish option.
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