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Resettable thermal fuse
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RELATED FAQS
Question
Answer
Will the MPB-842 or MPB-840 power EL or QEL devices?
Resolution:
The old MPB842 power supply will power up to two EL electric panic bars but will not power the QEL devices. A defective potted module inside the electric panic bar or defective power supply coul...:
What would cause an EL device to pull and release?
Resolution:
If your Von Duprin EL (solenoid) device pulls and releases quickly instead of holding the latch retracted, please check all of the items below.In most cases, one or more of these solutions will r...:
Why would an EL1690 retract the rods but not hold them?.
Resolution:
One of the following items may cause the EL1690 device to retract then release: Incorrect power supply - Verify you have the PS873-2/4TD or PS914-2RS/4RL power supply. Problems with wire gauge...:
Why will my EL 1490 fire my latches but not hold?
Resolution:
One of the following items may cause the EL1490 device to retract then release: Incorrect power supply - Verify you have the PS873-2/4TD or PS914-2RS/4RL power supply. Problems with wire gauge...:
What are the thermal factors for Steelcraft door products?
Resolution:
All doors are tested in accordance with ASTM C1363 and SDI 113:B18 Series (Steel Stiffeners) U-Factor = 0.50 R-Value = 2.01B16 Series (Steel Sti...:
What is thermal bow?
Resolution:
Thermal Bow is a temporary condition which occurs in metal doors mainly due to the temperature differential from one side of the door to the other. This may occur in exterior doors when direct sun ...:
Why is my Von Duprin CX going into a weak alarm after the rearm delay?
Resolution:
Chexit devices shipped prior to 8-24-2015 with solenoid - the solenoid pulls and drops, the alarm sounds, there is a solid LED or no LED light after the rearm t...:
AC is fuse blowing on a PS914 when AC power is applied.
Resolution:
If AC fuse blowing on a PS914 power supply then the mother board is defective. You need to replace the power supply with a new one.: