IEL/IUL/LEL magnetic circuit protectors provide low-cost power switching, reliable circuit protection and accurate circuit control for equipment in the international marketplace. IEL models are for those applications where the unit’s inherent attributes are desired, but compliance with the various standards is not required.
IUL models have been tested and approved in accordance with UL 1077 requirements for UL recognition.
IEL/LEL models are TUV approved to TUV 0660, part 101. They meet IEC spacing requirements, mandatory for equipment which must comply with IEC specifications 601 and 950, and TUV specifications 0804 and 0805. In addition, the IEL models are UL recognized to UL 1077 as supplementary protectors and the LEL models are UL listed under the conditions of UL 489. Both are CSA certified and CCC Approved. The IEL is CSA certified as a supplementary protector per CSA C22.2–No. 235.
The CEL model has achieved two new enhancements, including a single pole, 125 amp rating with TÜV approval, and a parallel 4-pole version with 400 amp rating. Airpax™ IEL/CEL/LEL circuit protectors are available in a wide variety of configurations, including series, series with auxiliary switch, shunt and relay with choice of delays and ratings in DC and/or 50/60Hz or 400Hz versions.
Single or multi-pole versions are available with a variety of pole arrangements to meet your specifications. Please see the appropriate product specification table for ratings and limitations.
Product Configurator
Features
Trip Free
Will trip open on overload even when forcibly held in the ON position. This prevents the operator from damaging the circuit by holding the breaker on.
Trip Indication
The operating handle moves positively to the OFF or mid-trip position on electrical overload. Ambient Operation IAL/IUL/IEL protectors operate in temperatures between –40°C to +85°C.
Insulation Resistance
Not less than 100 megohms at 500 volts DC.
Dielectric Strength
IAL/IUL/IEL protectors withstand 3750Vac (1250Vac for LEL), 60Hz for 60 seconds between all electrically isolated terminals except auxiliary switch terminals shall withstand 600Vac, 60Hz for REG and REC types. Four terminal dual coil and relay construction (not offered in the LEL) will withstand 1500Vac.
Endurance
Operating as a switch, the operating life exceeds 10,000 operations, 6000 at rated load, 4000 without load, at a rate of 6 per minute.
Electrical Characteristics
.050-100 amperes 80Vdc, 240Vac Max., 240/415Vac at 50 amperes Max., 50/60Hz and 400Hz. Consult factory for specific product ratings. Units rated for 240/415Vac and above 50 amperes are not suitable for across-the-line motor starting.
Poles
One through six poles available.
Construction
Series, shunt, relay dual coil and series with auxiliary switch available in various delays and combinations.
Auxiliary Switch
When supplied shall be S.P.D.T. configuration. Non-TUV approved switches have a maximum UL rating of 10.0 amperes, 250 volts, 60Hz; 3.0 amperes, 50 volts DC (REC type) or 0.1 amperes, 125 volts, 60Hz (REG type). TUV approved switches have a maximum UL rating of 10.0 amperes, 250 volts, 60Hz (REC type); or 0.1 amperes, 125 volts, 60Hz (REG; type). The maximum TUV ratings are 1.0 amperes, 125 volts, 60Hz (REC type); 0.1 amperes, 125 volts, 60Hz (REG type).
Salt Spray (Corrosion)
Meet the requirements of MIL-PRF-55629 when tested in accordance with Method 101 of MIL-STD-202.
Moisture Resistance
Meet all the requirements of MIL-PRF-55629 when tested in accordance with Method 106 of MIL-STD-202.
Shock
Circuit protectors shall not trip when tested per MIL-STD-202, Method 213, Test Condition I with 100% rated current applied to delayed units and 80% rated current to instantaneous units.
Vibration
Circuit protectors shall not trip when vibrated per MILSTD- 202, Method 204, Test Condition A with 100% rated current applied to delayed units and 80% rated current to instantaneous units.
UL-1500 (Marine Ignition Protected)
The IDL/IDLH is approved for Marine Ignition Protection (series configuration only), covering ignition protected circuit breakers. This specification requires devices to be used in accordance with the requirement of U.S. Coast Guard and Fire Protection Standard for Pleasure and Commercial Motor Craft, ANSI/MFPA #302.
