Product Overview

Product Bulletin

Issue Date April 2, 2007

Code No. BASO-PB-L61/L62 www.baso.com

L61, L62 Series BASO® Safety Shutoff Device

The L61 and L62 Series BASO® Safety Shutoff

Devices are for use on all gas-fired, standing pilot

equipment that requires main burner shutoff when the

pilot is extinguished. Typical applications include

domestic central heating and commercial space

heating appliances, as well as industrial processing

equipment (for example, die-casting machines and

degreasers).

The L61 and L62 monitor the pilot flame through the

use of a thermocouple. If the pilot flame is

extinguished, the switch will interrupt gas flow to the

main burner (and pilot burner in 100% shutoff models),

shutting down the appliance.

Figure 1: L61 and L62 Safety Shutoff Devices

Features and Benefits

 Automatic Resetting

(L61LL-1 Only)

Eliminates the need to manually operate a

reset button

 Single-Pole, Double-Throw

(SPDT) Switching Action

(L61LL-1 Only)

Allows use of a signal light or alarm

 Electric Interruption

(L62AA-5 and L62GB-3

Only)

Allows only pilot gas flow during lighting cycle

 Universal Replacement

(L62GB-3 Only)

Allows for the replacement of many existing

models (BASO Gas Products, Inc. and other

manufacturers)

PAGE 1
Product Bulletin Issue Date April 2, 2007 L61, L62 Series BASO® Safety Shutoff Device The L61 and L62 Series BASO® Safety Shutoff Devices are for use on all gas-fired, standing pilot equipment that requires main burner shutoff when the pilot is extinguished. Typical applications include domestic central heating and commercial space heating appliances, as well as industrial processing equipment (for example, die-casting machines and degreasers).
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Product Overview Dimensions L61 The L61 is an automatic resetting device that opens the main gas valve electrical circuit if the pilot flame is extinguished. Lighting or relighting the pilot burner causes the device to close the main gas valve electrical circuit, allowing the appliance main burner to operate. Table 1: Dimensions The L61 receives its energy from a heated thermocouple.
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Ordering Information Table 4: Ordering Information Part Number Description L61LL-1 SPDT Automatic Reset Pilot Switch L62AA-5 Single-Pole, Single-Throw (SPST) Manual Reset Pilot Switch L62GB-1 SPST Manual Reset Pilot Switch with 100% Shutoff L62GB-3 SPST Manual Reset Pilot Switch with 100% Shutoff with Universal Mounting Plate Technical Specifications Product L61LL-1 L62AA-5 L62GB-1, 3 100% Shutoff No No Yes Conduit Opening 1 1 or 2 as Special 2, 1 plugged Maximum Ambient Temperature 1